File:  [LON-CAPA] / loncom / interface / slotrequest.pm
Revision 1.152: download - view: text, annotated - select for diffs
Wed Apr 2 23:44:01 2025 UTC (2 months, 4 weeks ago) by raeburn
Branches: MAIN
CVS tags: version_2_12_X, HEAD
- Reservation setting screens support URLs with encrypturl set to yes.
  Note: Checking "URL hidden" for a folder in Course Editor will override
  any encrypturl settings set using the Parameter Manager.

    1: # The LearningOnline Network with CAPA
    2: # Handler for requesting to have slots added to a students record
    3: #
    4: # $Id: slotrequest.pm,v 1.152 2025/04/02 23:44:01 raeburn Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: ###
   29: 
   30: package Apache::slotrequest;
   31: 
   32: use strict;
   33: use Apache::Constants qw(:common :http :methods);
   34: use Apache::loncommon();
   35: use Apache::lonlocal;
   36: use Apache::lonnet;
   37: use Apache::lonnavmaps();
   38: use Date::Manip;
   39: use lib '/home/httpd/lib/perl/';
   40: use LONCAPA qw(:DEFAULT :match);
   41: 
   42: sub fail {
   43:     my ($r,$code)=@_;
   44:     if ($code eq 'not_valid') {
   45: 	$r->print('<p>'.&mt('Unable to understand what resource you wanted to sign up for.').'</p>');
   46:     } elsif ($code eq 'not_available') {
   47: 	$r->print('<p>'.&mt('No slots are available.').'</p>');
   48:     } elsif ($code eq 'not_allowed') {
   49: 	$r->print('<p>'.&mt('Not allowed to sign up or change reservations at this time.').'</p>');
   50:     } else {
   51: 	$r->print('<p>'.&mt('Failed.').'</p>');
   52:     }
   53: 
   54:     &return_link($r);
   55:     &end_page($r);
   56: }
   57: 
   58: sub start_page {
   59:     my ($r,$title,$brcrum,$bread_crumbs_component,$js,$mgr)=@_;
   60:     my $args;
   61:     if (ref($brcrum) eq 'ARRAY') {
   62:         $args = {bread_crumbs => $brcrum};
   63:         if ($bread_crumbs_component) {
   64:             $args->{bread_crumbs_component} = $bread_crumbs_component;
   65:         }
   66:         if ((($env{'form.requestattempt'}) || ($env{'form.context'} eq 'user')) && 
   67:              ($env{'form.symb'})) {
   68:             $args->{'bread_crumbs_nomenu'} = 1;
   69:         }
   70:     }
   71:     if (($env{'form.requestattempt'}) || ($env{'form.command'} eq 'manageresv')) {
   72:         my %loaditems = (
   73:                            onload => 'javascript:uncheckSlotRadio();',
   74:                         );
   75:         if (ref($args) eq 'HASH') {
   76:             $args->{'add_entries'} = \%loaditems;
   77:         } else {
   78:             $args = { 'add_entries' => \%loaditems };
   79:         }
   80:     }
   81:     unless (($env{'form.context'} eq 'usermanage') || (($mgr eq 'F') &&
   82:             (($env{'form.command'} eq 'release') ||
   83:              ($env{'form.command'} eq 'remove_registration')))) {
   84:         if ($env{'form.symb'}) {
   85:             my $symb=&unescape($env{'form.symb'});
   86:             if ($symb =~ m{^/enc/}) {
   87:                 $symb = &Apache::lonenc::unencrypted($symb);
   88:             }
   89:             my ($mapurl,$id,$resurl) = &Apache::lonnet::decode_symb($symb);
   90:             if ($resurl =~ /ext\.tool$/) {
   91:                 my $target;
   92:                 my ($marker,$exttool) = (split(m{/},$resurl))[3,4];
   93:                 $marker=~s/\D//g;
   94:                 if (($marker) && ($exttool) && ($env{'request.course.id'})) {
   95:                     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
   96:                     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
   97:                     my ($idx,$crstool,$is_tool,%toolhash,%toolsettings);
   98:                     if ($resurl eq "adm/$cdom/$cnum/$marker/$exttool") {
   99:                         my %toolsettings=&Apache::lonnet::dump('exttool_'.$marker,$cdom,$cnum);
  100:                         $target = $toolsettings{'target'};
  101:                     }
  102:                 }
  103:                 if ($target eq 'iframe') {
  104:                     $args->{'only_body'} = 1;
  105:                 }
  106:             }
  107:         }
  108:     }
  109:     $r->print(&Apache::loncommon::start_page($title,$js,$args));
  110: }
  111: 
  112: sub end_page {
  113:     my ($r)=@_;
  114:     $r->print('</div>'.&Apache::loncommon::end_page());
  115: }
  116: 
  117: sub reservation_js {
  118:     my ($slots,$consumed_uniqueperiods,$available,$got_slots,$symb) = @_;
  119:     return unless ((ref($slots) eq 'HASH') && (ref($available) eq 'ARRAY'));
  120:     my $toskip;
  121:     if ($symb eq '') {
  122:         $toskip = { symb => 1, };
  123:     }
  124:     my ($i,$j) = (0,0);
  125:     my $js;
  126:     foreach my $slot (sort
  127:         { return $slots->{$a}->{'starttime'} <=> $slots->{$b}->{'starttime'} }
  128:                     (keys(%{$slots})))  {
  129: 
  130:         next if (!&allowed_slot($slot,$slots->{$slot},$symb,$slots,
  131:                                 $consumed_uniqueperiods,$toskip));
  132:         $js .= "    slotstart[$i]='$slots->{$slot}->{'starttime'}';\n".
  133:                "    slotend[$i]='$slots->{$slot}->{'endtime'}';\n".
  134:                "    slotname[$i]='$slot';\n";
  135:         if (($symb) && (ref($got_slots) eq 'ARRAY')) {
  136:             if (grep(/^\Q$slot\E$/,@{$got_slots})) {
  137:                 $js .= "    currslot[$j]='$slot';\n";
  138:                 $j++;
  139:             }
  140:         }
  141:         $i++;
  142:         push(@{$available},$slot);
  143:     }
  144:     if ($j) {
  145:         $js = "    var currslot = new Array($j);\n\n$js";
  146:     }
  147:     my %alerts = &Apache::lonlocal::texthash (
  148:                                                 none    => 'No reservable time slots found',
  149:                                                 invalid => 'Invalid date format',
  150:                                              );
  151:     return <<"ENDSCRIPT";
  152: <script type="text/javascript">
  153: // <![CDATA[
  154: function updateSlotDisplay(form,num,slotpickradio) {
  155:     var slotstart = new Array($i);
  156:     var slotend = new Array($i);
  157:     var slotname = new Array($i);
  158: $js
  159: 
  160:     if (slotpickradio == 'all') {
  161:         for (var i=0; i<$i; i++) {
  162:             if (document.getElementById('LC_slotrow_'+num+'_'+slotname[i])) {
  163:                 document.getElementById('LC_slotrow_'+num+'_'+slotname[i]).style.display = '';
  164:             }
  165:             if (document.getElementById('LC_slotsearch_'+num)) {
  166:                 document.getElementById('LC_slotsearch_'+num).style.display = 'block';
  167:             }
  168:         }
  169:     } else {
  170:         if (slotpickradio == 'show') {
  171:             for (var i=0; i<$i; i++) {
  172:                 if (document.getElementById('LC_slotrow_'+num+'_'+slotname[i])) {
  173:                     document.getElementById('LC_slotrow_'+num+'_'+slotname[i]).style.display = 'none';
  174:                 }
  175:             }
  176:             for (var j=0; j<$j; j++) {
  177:                 if (document.getElementById('LC_slotrow_'+num+'_'+currslot[j])) {
  178:                     document.getElementById('LC_slotrow_'+num+'_'+currslot[j]).style.display = '';
  179:                 }
  180:             }
  181:             if (document.getElementById('LC_slotsearch_'+num)) {
  182:                 document.getElementById('LC_slotsearch_'+num).style.display = 'block';
  183:             }
  184:         } else {
  185:             var numberRegExp = /^[0-9]+\$/;
  186:             var startm = form.start_month.options[form.start_month.selectedIndex].value;
  187:             var startd = form.start_day.value;
  188:             startd=startd.trim();
  189:             var starty = form.start_year.value;
  190:             starty=starty.trim();
  191:             var endm = form.end_month.options[form.end_month.selectedIndex].value;
  192:             var endd = form.end_day.value;
  193:             endd=endd.trim();
  194:             var endy = form.end_year.value;
  195:             endy=endy.trim();
  196:             if (numberRegExp.test(endd) && numberRegExp.test(endy) && numberRegExp.test(startd) && numberRegExp.test(starty)) {
  197:                 var startdate = startm+"/"+startd+"/"+starty;
  198:                 var starttime = new Date(startdate).getTime();
  199:                 starttime = starttime/1000;
  200:                 var starth = form.start_hour.options[form.start_hour.selectedIndex].value;
  201:                 if (numberRegExp.test(starth)) {
  202:                     starth = parseInt(starth);
  203:                     if (starth > 0 && starth <= 23) {
  204:                         starttime += 3600 * starth;
  205:                     }
  206:                 }
  207:                 var enddate = endm+"/"+endd+"/"+endy;
  208:                 var endtime = new Date(enddate).getTime();
  209:                 endtime = endtime/1000;
  210:                 var endh = form.end_hour.options[form.end_hour.selectedIndex].value;
  211:                 if (numberRegExp.test(endh)) {
  212:                     endh = parseInt(endh);
  213:                     if (endh > 0 && endh <= 23) {
  214:                         endtime += 3600 * endh;
  215:                     }
  216:                 }
  217: 
  218:                 var shown = 0;
  219:                 for (var i=0; i<$i; i++) {
  220:                     if ((slotstart[i] >= starttime) && (slotend[i] <= endtime)) {
  221:                         if (document.getElementById('LC_slotrow_'+num+'_'+slotname[i])) {
  222:                             document.getElementById('LC_slotrow_'+num+'_'+slotname[i]).style.display = '';
  223:                             shown ++;
  224:                         }
  225:                     } else {
  226:                         if (document.getElementById('LC_slotrow_'+num+'_'+slotname[i])) {
  227:                             document.getElementById('LC_slotrow_'+num+'_'+slotname[i]).style.display = 'none';
  228:                         }
  229:                     }
  230:                 }
  231:                 if (document.getElementById('LC_slotsearch_'+num)) {
  232:                     if (shown) {
  233:                         document.getElementById('LC_slotsearch_'+num).style.display = 'block';
  234:                     } else {
  235:                         document.getElementById('LC_slotsearch_'+num).style.display = 'none';
  236:                     }
  237:                 }
  238:                 if (shown == 0) {
  239:                     alert('$alerts{"none"}');
  240:                 }
  241:             } else {
  242:                 alert('$alerts{"invalid"}');
  243:             }
  244:         }
  245:     }
  246:     return;
  247: }
  248: 
  249: function toggleSlotDisplay(form,num) {
  250:     if (form.slotpick.length) {
  251:         for (var i=0; i<form.slotpick.length; i++) {
  252:             if (form.slotpick[i].checked) {
  253:                 var val = form.slotpick[i].value;
  254:                 if (document.getElementById('LC_slotfilter_'+num)) {
  255:                     document.getElementById('LC_slotsearch_'+num).style.display = 'none';
  256:                     if (val == 'filter') {
  257:                         document.getElementById('LC_slotfilter_'+num).style.display = 'block';
  258:                     } else {
  259:                         document.getElementById('LC_slotfilter_'+num).style.display = 'none';
  260:                         if (val == 'all') {
  261:                             updateSlotDisplay(form,num,val);
  262:                         } else {
  263:                             updateSlotDisplay(form,num,val);
  264:                         }
  265:                     }
  266:                 }
  267:                 break;
  268:             }
  269:         }
  270:     }
  271:     return false;
  272: }
  273: 
  274: if (!document.getElementsByClassName) {
  275:     function getElementsByClassName(node, classname) {
  276:         var a = [];
  277:         var re = new RegExp('(^| )'+classname+'( |$)');
  278:         var els = node.getElementsByTagName("*");
  279:         for(var i=0,j=els.length; i<j; i++)
  280:             if(re.test(els[i].className))a.push(els[i]);
  281:         return a;
  282:     }
  283: }
  284: 
  285: function uncheckSlotRadio() {
  286:     var slotpicks;
  287:     if (document.getElementsByClassName) {
  288:         slotpicks = document.getElementsByClassName('LC_slotpick_radio');
  289:     } else {
  290:         slotpicks = getElementsByClassName(document.body,'LC_slotpick_radio');
  291:     }
  292:     if (slotpicks.length) {
  293:         for (var i=0; i<slotpicks.length; i++) {
  294:             slotpicks[i].checked = false;
  295:         }
  296:     }
  297: }
  298: 
  299: function toggleSlotMap(maprownum,rownum) {
  300:     if (document.getElementById('arrow'+maprownum)) {
  301:         var img = document.getElementById('arrow'+maprownum);
  302:         var rowdisplay;
  303:         var celldisplay = '';
  304:         if (img.src.indexOf('arrow.open.gif')!=-1) {
  305:             img.src = '/adm/lonIcons/arrow.closed.gif';
  306:             rowdisplay = 'none';
  307:         }
  308:         else {
  309:             img.src = '/adm/lonIcons/arrow.open.gif';
  310:             rowdisplay = 'table-row';
  311:             celldisplay = 'none';
  312:         }
  313:         var resrows;
  314:         var maptext;
  315:         if (document.getElementsByClassName) {
  316:             resrows = document.getElementsByClassName('LC_slotresrow_'+maprownum);
  317:             maptext = document.getElementsByClassName('LC_slotmaptext_'+maprownum);
  318:         } else {
  319:             resrows = getElementsByClassName(document.body,'LC_slotresrow_'+maprownum);
  320:             maptext = getElementsByClassName(document.body,'LC_slotmaptext_'+maprownum);
  321:         }
  322:         if (maptext.length) {
  323:             for (var i=0; i<maptext.length; i++) {
  324:                 maptext[i].style.display = celldisplay;
  325:             }
  326:         }
  327:         if (resrows.length) {
  328:            var mapbgidx = 0;
  329:            var rowclasses = ['LC_even_row','LC_odd_row'];
  330:            var mapbgClass = 'LC_even_row';
  331:            var regExpBg = /LC_odd_row/i;
  332:            if (rowdisplay == 'table-row') {
  333:                 if (document.getElementById('LC_slotmaprow_'+rownum)) {
  334:                     mapbgClass = document.getElementById('LC_slotmaprow_'+rownum).className;
  335:                     if (regExpBg.test(mapbgClass)) {
  336:                         mapbgidx = 1;
  337:                     }
  338:                 }
  339:             }
  340:             for (var i=0; i<resrows.length; i++) {
  341:                 resrows[i].style.display = rowdisplay;
  342:                 if (rowdisplay == 'table-row') {
  343:                     mapbgidx ++;
  344:                     var bgcolnew = mapbgidx % 2;
  345:                     var bgcolold = (mapbgidx+1) % 2;
  346:                     var k = i+parseInt(rownum)+1; 
  347:                     if (document.getElementById('LC_slotresrow_'+k)) {
  348:                         document.getElementById('LC_slotresrow_'+k).className = document.getElementById('LC_slotresrow_'+k).className.replace(rowclasses[bgcolold],rowclasses[bgcolnew]);
  349:                     }
  350:                 }
  351:             }
  352:             if (document.getElementById('LC_slot_reservations')) {
  353:                 var numrowsOdd = resrows.length % 2;
  354:                 if (numrowsOdd) {
  355:                     var lastbgClass = 'LC_even_row';
  356:                     var idx = 0;
  357:                     var lastresnum = parseInt(rownum) + resrows.length; 
  358:                     if (rowdisplay == 'none') {
  359:                         lastresnum = rownum;
  360:                         if (document.getElementById('LC_slotmaprow_'+rownum)) {
  361:                             lastbgClass = document.getElementById('LC_slotmaprow_'+rownum).className;
  362:                         }
  363:                     } else {
  364:                         lastresnum = parseInt(rownum) + resrows.length;
  365:                         if (document.getElementById('LC_slotresrow_'+lastresnum)) {
  366:                             lastbgClass = document.getElementById('LC_slotresrow_'+lastresnum).className;
  367:                         }
  368:                     }
  369:                     if (regExpBg.test(lastbgClass)) {
  370:                         idx = 1;
  371:                     }
  372:                     var table = document.getElementById('LC_slot_reservations');
  373:                     if ((table.rows.length) && (table.rows.length >= lastresnum)) {
  374:                         for (var i=lastresnum; i<table.rows.length; i++) {
  375:                             if (table.rows[i].style.display != 'none') {
  376:                                 idx ++;
  377:                                 var bgcolnew = idx % 2;
  378:                                 var bgcolold = (idx+1) % 2;
  379:                                 j = i+1;
  380:                                 if (document.getElementById('LC_slotmaprow_'+j)) {
  381:                                     document.getElementById('LC_slotmaprow_'+j).className = rowclasses[bgcolnew];
  382:                                 } else {
  383:                                     if (document.getElementById('LC_slotresrow_'+j)) {
  384:                                         document.getElementById('LC_slotresrow_'+j).className = document.getElementById('LC_slotresrow_'+j).className.replace(rowclasses[bgcolold],rowclasses[bgcolnew]);
  385:                                     }
  386:                                 }
  387:                             }
  388:                         }
  389:                     }
  390:                 }
  391:             }
  392:         }
  393:     }
  394: }
  395: // ]]>
  396: </script>
  397: ENDSCRIPT
  398: 
  399: }
  400: 
  401: 
  402: =pod
  403: 
  404:  slot_reservations db
  405:    - keys are 
  406:     - slotname\0id -> value is an hashref of
  407:                          name -> user@domain of holder
  408:                          timestamp -> timestamp of reservation
  409:                          symb -> symb of resource that it is reserved for
  410: 
  411: =cut
  412: 
  413: sub get_course {
  414:     (undef,my $courseid)=&Apache::lonnet::whichuser();
  415:     my $cdom=$env{'course.'.$courseid.'.domain'};
  416:     my $cnum=$env{'course.'.$courseid.'.num'};
  417:     return ($cnum,$cdom);
  418: }
  419: 
  420: sub get_reservation_ids {
  421:     my ($slot_name)=@_;
  422: 
  423:     my ($cnum,$cdom)=&get_course();
  424: 
  425:     my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
  426: 				       "^$slot_name\0");
  427:     if (&Apache::lonnet::error(%consumed)) { 
  428: 	return 'error: Unable to determine current status';
  429:     }
  430:     my ($tmp)=%consumed;
  431:     if ($tmp=~/^error: 2 / ) {
  432: 	return 0;
  433:     }
  434:     return keys(%consumed);
  435: }
  436: 
  437: sub space_available {
  438:     my ($slot_name,$slot)=@_;
  439:     my $max=$slot->{'maxspace'};
  440: 
  441:     if (!defined($max)) { return 1; }
  442: 
  443:     my $consumed=scalar(&get_reservation_ids($slot_name));
  444:     if ($consumed < $max) {
  445: 	return 1
  446:     }
  447:     return 0;
  448: }
  449: 
  450: sub check_for_reservation {
  451:     my ($symb,$mode)=@_;
  452:     my $student = &Apache::lonnet::EXT("resource.0.availablestudent", $symb,
  453: 				       $env{'user.domain'}, $env{'user.name'});
  454:     my $course = &Apache::lonnet::EXT("resource.0.available", $symb,
  455: 				    $env{'user.domain'}, $env{'user.name'});
  456:     my @slots = (split(/:/,$student), split(/:/, $course));
  457: 
  458:     &Apache::lonxml::debug(" slot list is ".join(':',@slots));
  459: 
  460:     my ($cnum,$cdom)=&get_course();
  461:     my %slots=&Apache::lonnet::get('slots', [@slots], $cdom, $cnum);
  462: 
  463:     if (&Apache::lonnet::error($student) 
  464: 	|| &Apache::lonnet::error($course)
  465: 	|| &Apache::lonnet::error(%slots)) {
  466: 	return 'error: Unable to determine current status';
  467:     }
  468:     my @got;
  469:     my @sorted_slots = &Apache::loncommon::sorted_slots(\@slots,\%slots,'starttime');
  470:     foreach my $slot_name (@sorted_slots) {
  471: 	next if (!defined($slots{$slot_name}) ||
  472: 		 !ref($slots{$slot_name}));
  473: 	&Apache::lonxml::debug(time." $slot_name ".
  474: 			       $slots{$slot_name}->{'starttime'}." -- ".
  475: 			       $slots{$slot_name}->{'startreserve'}." -- ".
  476:                                $slots{$slot_name}->{'endreserve'});
  477: 	if (($slots{$slot_name}->{'endtime'} > time) &&
  478: 	    ($slots{$slot_name}->{'startreserve'} < time) &&
  479:             ((!$slots{$slot_name}->{'endreserve'}) || 
  480:              ($slots{$slot_name}->{'endreserve'} > time))) {
  481: 	    # between start of reservation time and end of reservation time
  482:             # and before end of slot
  483: 	    if ($mode eq 'allslots') {
  484: 		push(@got,$slot_name);
  485: 	    } else {
  486: 		return($slot_name, $slots{$slot_name});
  487: 	    }
  488: 	}
  489:     }
  490:     if ($mode eq 'allslots' && @got) {
  491: 	return @got;
  492:     }
  493:     return (undef,undef);
  494: }
  495: 
  496: sub get_consumed_uniqueperiods {
  497:     my ($slots) = @_;
  498:     my $navmap=Apache::lonnavmaps::navmap->new;
  499:     if (!defined($navmap)) {
  500:         return 'error: Unable to determine current status';
  501:     }
  502:     my @problems = $navmap->retrieveResources(undef,
  503: 					      sub { $_[0]->is_problem() || $_[0]->is_tool() },1,0);
  504:     my %used_slots;
  505:     foreach my $problem (@problems) {
  506: 	my $symb = $problem->symb();
  507: 	my $student = &Apache::lonnet::EXT("resource.0.availablestudent",
  508: 					   $symb, $env{'user.domain'},
  509: 					   $env{'user.name'});
  510: 	my $course =  &Apache::lonnet::EXT("resource.0.available",
  511: 					   $symb, $env{'user.domain'},
  512: 					   $env{'user.name'});
  513: 	if (&Apache::lonnet::error($student) 
  514: 	    || &Apache::lonnet::error($course)) {
  515: 	    return 'error: Unable to determine current status';
  516: 	}
  517: 	foreach my $slot (split(/:/,$student), split(/:/, $course)) {
  518: 	    $used_slots{$slot}=1;
  519: 	}
  520:     }
  521: 
  522:     if (!ref($slots)) {
  523: 	my ($cnum,$cdom)=&get_course();
  524: 	my %slots=&Apache::lonnet::get('slots', [keys(%used_slots)], $cdom, $cnum);
  525: 	if (&Apache::lonnet::error(%slots)) {
  526: 	    return 'error: Unable to determine current status';
  527: 	}
  528: 	$slots = \%slots;
  529:     }
  530: 
  531:     my %consumed_uniqueperiods;
  532:     foreach my $slot_name (keys(%used_slots)) {
  533: 	next if (!defined($slots->{$slot_name}) ||
  534: 		 !ref($slots->{$slot_name}));
  535: 	
  536:         next if (!defined($slots->{$slot_name}{'uniqueperiod'}) ||
  537: 		 !ref($slots->{$slot_name}{'uniqueperiod'}));
  538: 	$consumed_uniqueperiods{$slot_name} = 
  539: 	    $slots->{$slot_name}{'uniqueperiod'};
  540:     }
  541:     return \%consumed_uniqueperiods;
  542: }
  543: 
  544: sub check_for_conflict {
  545:     my ($symb,$new_slot_name,$new_slot,$slots,$consumed_uniqueperiods)=@_;
  546: 
  547:     if (!defined($new_slot->{'uniqueperiod'})) { return undef; }
  548: 
  549:     if (!ref($consumed_uniqueperiods)) {
  550:         if ($consumed_uniqueperiods =~ /^error: /) {
  551:             return $consumed_uniqueperiods;
  552:         } else {
  553: 	    $consumed_uniqueperiods = &get_consumed_uniqueperiods($slots);
  554:             if (ref($consumed_uniqueperiods) eq 'HASH') {
  555: 	        if (&Apache::lonnet::error(%$consumed_uniqueperiods)) {
  556: 	            return 'error: Unable to determine current status';
  557: 	        }
  558:             } else {
  559:                 return 'error: Unable to determine current status';
  560:             }
  561:         }
  562:     } 
  563:     my ($new_uniq_start,$new_uniq_end) = @{$new_slot->{'uniqueperiod'}};
  564:     foreach my $slot_name (keys(%$consumed_uniqueperiods)) {
  565: 	my ($start,$end)=@{$consumed_uniqueperiods->{$slot_name}};
  566: 	if (!
  567: 	    ($start < $new_uniq_start &&  $end < $new_uniq_start) ||
  568: 	    ($start > $new_uniq_end   &&  $end > $new_uniq_end  )) {
  569: 	    return $slot_name;
  570: 	}
  571:     }
  572:     return undef;
  573: }
  574: 
  575: sub make_reservation {
  576:     my ($slot_name,$slot,$symb,$cnum,$cdom)=@_;
  577: 
  578:     my $value=&Apache::lonnet::EXT("resource.0.availablestudent",$symb,
  579: 				   $env{'user.domain'},$env{'user.name'});
  580:     &Apache::lonxml::debug("value is  $value<br />");
  581: 
  582:     my $use_slots = &Apache::lonnet::EXT("resource.0.useslots",$symb,
  583: 					 $env{'user.domain'},$env{'user.name'});
  584:     &Apache::lonxml::debug("use_slots is  $use_slots<br />");
  585: 
  586:     if (&Apache::lonnet::error($value) 
  587: 	|| &Apache::lonnet::error($use_slots)) { 
  588: 	return 'error: Unable to determine current status';
  589:     }
  590: 
  591:     my $symb_for_db = $symb;
  592:     my $parm_level = 1;
  593:     if ($use_slots eq 'map' || $use_slots eq 'map_map') {
  594: 	my ($map) = &Apache::lonnet::decode_symb($symb);
  595: 	$symb_for_db = &Apache::lonnet::symbread($map);
  596: 	$parm_level = 2;
  597:     }
  598: 
  599:     foreach my $other_slot (split(/:/, $value)) {
  600: 	if ($other_slot eq $slot_name) {
  601: 	    my %consumed=&Apache::lonnet::dump('slot_reservations', $cdom,
  602: 					       $cnum, "^$slot_name\0");
  603: 	    if (&Apache::lonnet::error($value)) { 
  604: 		return 'error: Unable to determine current status';
  605: 	    }
  606: 	    my $me=$env{'user.name'}.':'.$env{'user.domain'};
  607: 	    foreach my $key (keys(%consumed)) {
  608: 		if ($consumed{$key}->{'name'} eq $me) {
  609: 		    my $num=(split('\0',$key))[1];
  610: 		    return -$num;
  611: 		}
  612: 	    }
  613: 	}
  614:     }
  615: 
  616:     my $max=$slot->{'maxspace'};
  617:     if (!defined($max)) { $max=99999; }
  618: 
  619:     my (@ids)=&get_reservation_ids($slot_name);
  620:     if (&Apache::lonnet::error(@ids)) { 
  621: 	return 'error: Unable to determine current status';
  622:     }
  623:     my $last=0;
  624:     foreach my $id (@ids) {
  625: 	my $num=(split('\0',$id))[1];
  626: 	if ($num > $last) { $last=$num; }
  627:     }
  628: 
  629:     my $wanted=$last+1;
  630:     &Apache::lonxml::debug("wanted $wanted<br />");
  631:     if (scalar(@ids) >= $max) {
  632: 	# full up
  633: 	return undef;
  634:     }
  635: 
  636:     my %reservation=('name'      => $env{'user.name'}.':'.$env{'user.domain'},
  637: 		     'timestamp' => time,
  638: 		     'symb'      => $symb_for_db);
  639: 
  640:     my $success=&Apache::lonnet::newput('slot_reservations',
  641: 					{"$slot_name\0$wanted" =>
  642: 					     \%reservation},
  643: 					$cdom, $cnum);
  644: 
  645:     if ($success eq 'ok') {
  646: 	my $new_value=$slot_name;
  647: 	if ($value) {
  648: 	    $new_value=$value.':'.$new_value;
  649: 	}
  650:         my $result = &store_slot_parm($symb,$symb_for_db,$slot_name,$parm_level,
  651:                                       $new_value,$cnum,$cdom,$env{'user.name'},
  652:                                       $env{'user.domain'},'reserve',$env{'form.context'});
  653: 	return $wanted;
  654:     }
  655: 
  656:     # someone else got it
  657:     return undef;
  658: }
  659: 
  660: sub store_slot_parm {
  661:     my ($symb_for_parm,$symb_for_db,$slot_name,$parm_level,$new_value,
  662:         $cnum,$cdom,$uname,$udom,$action,$context,$delflag) = @_;
  663: 
  664:     # store new parameter string
  665:     my $result=&Apache::lonparmset::storeparm_by_symb($symb_for_parm,
  666:                                                       '0_availablestudent',
  667:                                                       $parm_level,$new_value,
  668:                                                       'string',$uname,$udom);
  669:     &Apache::lonxml::debug("hrrm $result");
  670:     my %storehash = (
  671:                        symb    => $symb_for_db,
  672:                        slot    => $slot_name,
  673:                        action  => $action,
  674:                        context => $context,
  675:                     );
  676: 
  677:     &Apache::lonnet::write_log('course','slotreservationslog',\%storehash,
  678:                                $delflag,$uname,$udom,$cnum,$cdom);
  679:     &Apache::lonnet::write_log('course',$cdom.'_'.$cnum.'_slotlog',\%storehash,
  680:                                $delflag,$uname,$udom,$uname,$udom);
  681:     return $result;
  682: }
  683: 
  684: sub remove_registration {
  685:     my ($r) = @_;
  686:     if ($env{'form.entry'} ne 'remove all') {
  687: 	return &remove_registration_user($r);
  688:     }
  689:     my $slot_name = $env{'form.slotname'};
  690:     my %slot=&Apache::lonnet::get_slot($slot_name);
  691: 
  692:     my ($cnum,$cdom)=&get_course();
  693:     my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
  694: 				       "^$slot_name\0");
  695:     if (&Apache::lonnet::error(%consumed)) {
  696: 	$r->print("<p><span class=\"LC_error\">".&mt('A network error has occurred.').'</span></p>');
  697: 	return;
  698:     }
  699:     if (!%consumed) {
  700: 	$r->print('<p>'.&mt('Slot [_1] has no reservations.',
  701: 			    '<tt>'.$slot_name.'</tt>').'</p>');
  702: 	return;
  703:     }
  704: 
  705:     my @names = map { $consumed{$_}{'name'} } (sort(keys(%consumed)));
  706:     my $names = join(' ',@names);
  707: 
  708:     my $msg = &mt('Remove all of [_1] from slot [_2]?',$names,$slot_name);
  709:     &remove_registration_confirmation($r,$msg,['entry','slotname','context']);
  710: }
  711: 
  712: sub remove_registration_user {
  713:     my ($r) = @_;
  714: 
  715:     my $slot_name = $env{'form.slotname'};
  716: 
  717:     my $name = &Apache::loncommon::plainname($env{'form.uname'},
  718: 					     $env{'form.udom'});
  719: 
  720:     my $symb = &unescape($env{'form.symb'});
  721:     if ($symb =~ m{^/enc/}) {
  722:         $symb = &Apache::lonenc::unencrypted($symb);
  723:     }
  724:     my $title = &Apache::lonnet::gettitle($symb);
  725: 
  726:     my $msg = &mt('Remove [_1] from slot [_2] for [_3]',
  727: 		  $name,$slot_name,$title);
  728: 
  729:     &remove_registration_confirmation($r,$msg,['uname','udom','slotname',
  730: 					       'entry','symb','context']);
  731: }
  732: 
  733: sub remove_registration_confirmation {
  734:     my ($r,$msg,$inputs) =@_;
  735: 
  736:     my $hidden_input;
  737:     foreach my $parm (@{$inputs}) {
  738: 	$hidden_input .=
  739: 	    '<input type="hidden" name="'.$parm.'" value="'
  740: 	    .&HTML::Entities::encode($env{'form.'.$parm},'"<>&\'').'" />'."\n";
  741:     }
  742:     my %lt = &Apache::lonlocal::texthash(
  743:         'yes' => 'Yes',
  744:         'no'  => 'No',
  745:     );
  746:     $r->print(<<"END_CONFIRM");
  747: <p> $msg </p>
  748: <form action="/adm/slotrequest" method="post">
  749:     <input type="hidden" name="command" value="release" />
  750:     <input type="hidden" name="button" value="yes" />
  751:     $hidden_input
  752:     <input type="submit" value="$lt{'yes'}" />
  753: </form>
  754: <form action="/adm/slotrequest" method="post">
  755:     <input type="hidden" name="command" value="showslots" />
  756:     <input type="submit" value="$lt{'no'}" />
  757: </form>
  758: END_CONFIRM
  759: 
  760: }
  761: 
  762: sub release_all_slot {
  763:     my ($r,$mgr)=@_;
  764: 
  765:     my $slot_name = $env{'form.slotname'};
  766: 
  767:     my ($cnum,$cdom)=&get_course();
  768: 
  769:     my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
  770: 				       "^$slot_name\0");
  771: 
  772:     $r->print('<p>'.&mt('Releasing reservations').'</p>');
  773: 
  774:     foreach my $entry (sort { $consumed{$a}{'name'} cmp 
  775: 				  $consumed{$b}{'name'} } (keys(%consumed))) {
  776: 	my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
  777: 	my ($result,$msg) =
  778: 	    &release_reservation($slot_name,$uname,$udom,
  779: 				 $consumed{$entry}{'symb'},$mgr);
  780:         if (!$result) {
  781:             $r->print('<p class="LC_error">'.&mt($msg).'</p>');
  782:         } else {
  783: 	    $r->print($msg);
  784:         }
  785: 	$r->rflush();
  786:     }
  787:     $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
  788: 	      &mt('Return to slot list').'</a></p>');
  789:     &return_link($r);
  790: }
  791: 
  792: sub release_slot {
  793:     my ($r,$symb,$slot_name,$inhibit_return_link,$mgr)=@_;
  794: 
  795:     if ($slot_name eq '') { $slot_name=$env{'form.slotname'}; }
  796: 
  797:     my ($uname,$udom) = ($env{'user.name'}, $env{'user.domain'});
  798:     if ($mgr eq 'F' 
  799: 	&& defined($env{'form.uname'}) && defined($env{'form.udom'})) {
  800: 	($uname,$udom) = ($env{'form.uname'}, $env{'form.udom'});
  801:     }
  802: 
  803:     if ($mgr eq 'F' 
  804: 	&& defined($env{'form.symb'})) {
  805: 	$symb = &unescape($env{'form.symb'});
  806: 	if ($symb =~ m{^/enc/}) {
  807: 	    $symb = &Apache::lonenc::unencrypted($symb);
  808: 	}
  809:     }
  810: 
  811:     my ($result,$msg) =
  812: 	&release_reservation($slot_name,$uname,$udom,$symb,$mgr);
  813:     if (!$result) {
  814:         $r->print('<p class="LC_error">'.&mt($msg).'</p>');
  815:     } else {
  816:         $r->print("<p>$msg</p>");
  817:     }
  818: 
  819:     if ($mgr eq 'F') {
  820: 	$r->print('<p><a href="/adm/slotrequest?command=showslots">'.
  821: 		  &mt('Return to slot list').'</a></p>');
  822:     }
  823: 
  824:     if (!$inhibit_return_link) { &return_link($r);  }
  825:     return $result;
  826: }
  827: 
  828: sub release_reservation {
  829:     my ($slot_name,$uname,$udom,$symb,$mgr) = @_;
  830:     my %slot=&Apache::lonnet::get_slot($slot_name);
  831:     my $description=&get_description($slot_name,\%slot);
  832:     my $msg;
  833: 
  834:     if ($mgr ne 'F') {
  835: 	if ($slot{'starttime'} < time) {
  836: 	    return (0,&mt('Not allowed to release Reservation: [_1], as it has already started.',$description));
  837: 	}
  838:     }
  839:     my $context = $env{'form.context'};
  840: 
  841:     # get navmap object
  842:     my $navmap=Apache::lonnavmaps::navmap->new;
  843:     if (!defined($navmap)) {
  844:         return (0,'error: Unable to determine current status');
  845:     }
  846: 
  847:     my ($cnum,$cdom)=&get_course();
  848: 
  849:     # get slot reservations, check if user has reservation
  850:     my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
  851:                                        "^$slot_name\0");
  852: 
  853:     #
  854:     # If release is because of a reservation *change*, symb(s) associated with reservation
  855:     # being dropped may differ from the current symb.
  856:     #
  857:     # We need to get symb(s) from slot_reservations.db, and for each symb, update
  858:     # the value of the availablestudent parameter, at the appropriate level
  859:     # (as dictated by the value of the useslots parameter for the symb and user).
  860:     #
  861:     # We also delete all entries for the slot being released, for the specific user.
  862:     #
  863: 
  864:     my $conflict;
  865: 
  866:     if (($env{'form.command'} eq 'change') && ($slot_name eq $env{'form.releaseslot'}) &&
  867:         ($env{'form.slotname'} ne $slot_name)) {
  868:         my %changedto = &Apache::lonnet::get_slot($env{'form.slotname'});
  869: 
  870:         # check for conflicts
  871:         my ($to_uniq_start,$to_uniq_end,$from_uniq_start,$from_uniq_end);
  872:         if (ref($changedto{'uniqueperiod'}) eq 'ARRAY') {
  873:             ($to_uniq_start,$to_uniq_end) = @{$changedto{'uniqueperiod'}};
  874:         }
  875:         if (ref($slot{'uniqueperiod'}) eq 'ARRAY') {
  876:             ($from_uniq_start,$from_uniq_end) = @{$slot{'uniqueperiod'}};
  877:         }
  878:         my $to_start = $changedto{'starttime'};
  879:         my $to_end = $changedto{'endtime'};
  880:         my $from_start = $slot{'starttime'};
  881:         my $from_end = $slot{'endtime'};
  882: 
  883:         if (!
  884:              ($from_start < $to_uniq_start && $from_end < $to_uniq_start) ||
  885:              ($from_start > $to_uniq_end   && $from_end > $to_uniq_end  )) {
  886:             $conflict = 1;
  887:         }
  888:         if (!
  889:              ($to_start < $from_uniq_start && $to_end < $from_uniq_start) ||
  890:              ($to_start > $from_uniq_end   && $to_end > $from_uniq_end  )) {
  891:             $conflict = 1;
  892:         }
  893: 
  894:         if ($conflict) {
  895:             my %symbs_for_slot;
  896:             my (%to_delete,%failed,%released);
  897:             foreach my $entry (keys(%consumed)) {
  898:                 if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) {
  899:                     $symbs_for_slot{$consumed{$entry}->{'symb'}} = 1;
  900:                     $to_delete{$entry} = 1;
  901:                 }
  902:             }
  903:             if (keys(%to_delete)) {
  904:                 my @removals = keys(%to_delete);
  905:                 if (&Apache::lonnet::del('slot_reservations',\@removals,
  906:                                      $cdom,$cnum) eq 'ok') {
  907:                     foreach my $item (keys(%symbs_for_slot)) {
  908:                         my $result = &update_selectable($navmap,$slot_name,$item,$cdom,
  909:                                                         $cnum,$udom,$uname,$context);
  910:                         if ($result =~ /^error/) {
  911:                             $failed{$item} = 1;
  912:                         } else {
  913:                             $released{$item} = 1;
  914:                         }
  915:                     }
  916:                 }
  917:             }
  918:             if (keys(%released)) {
  919:                 $msg = '<span style="font-weight: bold;">'.
  920:                        &mt('Released Reservation: [_1]',$description).'</span>&nbsp;&nbsp;'.
  921:                        &mt('The following items had their reservation status change').':';
  922:                 my (%folders,%pages,%container,%titles);
  923:                 foreach my $item (keys(%released)) {
  924:                     my $res = $navmap->getBySymb($item);
  925:                     if (ref($res)) {
  926:                         $titles{$item} = $res->title();
  927:                         if ($res->is_map()) {
  928:                             $folders{$item}{'title'} = $titles{$item};
  929:                             if ($res->is_page()) {
  930:                                 $pages{$item}{'title'} = $titles{$item};
  931:                             } else {
  932:                                 $folders{$item}{'title'} = $titles{$item};
  933:                             }
  934:                         } else {
  935:                             my $mapsrc = $res->enclosing_map_src();
  936:                             my $map = $navmap->getResourceByUrl($mapsrc);
  937:                             if (ref($map)) {
  938:                                 if ($map->id() eq '0.0') {
  939:                                     $container{$mapsrc}{'title'} &mt('Top level of course');
  940:                                 } else {
  941:                                     $container{$mapsrc}{'title'} = $map->title();
  942:                                     if ($map->is_page()) {
  943:                                         $container{$mapsrc}{'page'} = 1;
  944:                                     }
  945:                                 }
  946:                             }
  947:                             $container{$mapsrc}{'resources'}{$item} = 1;
  948:                         }
  949:                     }
  950:                 }
  951:                 $msg .= '<ul>';
  952:                 if (keys(%folders)) {
  953:                     $msg .= '<li>'.&mt('Folders').': '.
  954:                             join(', ', map { $folders{$_}{'title'} } (sort { $folders{$b}{'title'} cmp $folders{$a}{'title'} } (keys(%folders)))).
  955:                             '</li>';
  956:                 }
  957:                 if (keys(%pages)) {
  958:                     $msg .= '<li>'.&mt('Composite Pages').': '.
  959:                             join(', ', map { $pages{$_}{'title'} } (sort { $pages{$b}{'title'} cmp $pages{$a}{'title'} } (keys(%pages)))).
  960:                             '</li>';
  961:                 }
  962:                 if (keys(%container)) {
  963:                     $msg .= '<li>'.&mt('Resources').':<ul>';
  964:                     foreach my $key (sort { $container{$b}{'title'} cmp $container{$a}{'title'} } (keys(%container))) {
  965:                         if (ref($container{$key}{'resources'}) eq 'HASH') {
  966:                             $msg .= '<li>'.
  967:                                     join(', ', map { $titles{$_} } (sort(keys(%{$container{$key}{'resources'}}))));
  968:                             if ($container{$key}{'page'}) {
  969:                                 $msg .= ' '.&mt('(in composite page [_1])',$container{$key}{'title'}).'</li>';
  970:                             } else {
  971:                                 $msg .= ' '.&mt('(in folder [_1])',$container{$key}{'title'}).'</li>';
  972:                             }
  973:                         }
  974:                     }
  975:                     $msg .= '</ul></li>';
  976:                 }
  977:                 $msg .= '</ul>';
  978:                 my $person = &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'});
  979:                 my $subject = &mt('Reservation change: [_1]',$description);
  980:                 my $msgbody = &mt('Reservation released by [_1] for [_2].',$person,$description);
  981:                 $msg .= &slot_change_messaging($slot{'reservationmsg'},$subject,$msgbody,'release');
  982:                 return (1,$msg);
  983:             } else {
  984:                 if (keys(%to_delete)) {
  985:                     $msg = &mt('Reservation release partially complete for [_1]',$description);
  986:                 } else {
  987:                     $msg = &mt('No entries found for this user to release for [_1].',$description);
  988:                 }
  989:                 return (0,$msg);
  990:             }
  991:         } else {
  992:             $msg = &mt('No conflict found; not releasing: [_1].',$description);
  993:             return (0,$msg);
  994:         }
  995:     }
  996: 
  997:     my $map_symb;
  998:     my $parm_symb = $symb;
  999:     my $passed_resource = $navmap->getBySymb($symb);
 1000: 
 1001:     # if the reservation symb is for a map get a resource in that map
 1002:     # to check slot parameters on
 1003:     my $parm_level = 1;
 1004:     if (ref($passed_resource)) {
 1005:         if ($passed_resource->is_map()) {
 1006: 	    my ($a_resource) = 
 1007:                 $navmap->retrieveResources($passed_resource, 
 1008:                     sub {$_[0]->is_problem() || $_[0]->is_tool() },0,1);
 1009:             $parm_symb = $a_resource->symb();
 1010:         }
 1011:     } else {
 1012:         unless ($mgr eq 'F') {
 1013:             return (0,'error: Unable to determine current status');
 1014:         }
 1015:     }
 1016: 
 1017:     # Get value of useslots parameter in effect for this user.
 1018:     # If value is map or map_map, then the parm level is 2 (i.e.,
 1019:     # non-recursive enclosing map/folder level for specific user)
 1020:     # and the symb for this reservation in slot_reservations.db
 1021:     # will be the symb of the map itself.
 1022: 
 1023:     my $use_slots = &Apache::lonnet::EXT('resource.0.useslots',
 1024:                                          $parm_symb,$udom,$uname);
 1025:     if (&Apache::lonnet::error($use_slots)) {
 1026:         return (0,'error: Unable to determine current status');
 1027:     }
 1028:     if ($use_slots eq 'map' || $use_slots eq 'map_map') {
 1029:         $parm_level = 2;
 1030:         if ($passed_resource->is_map()) {
 1031:             $map_symb = $passed_resource->symb();
 1032:         } else {
 1033:             my ($map) = &Apache::lonnet::decode_symb($symb);
 1034:             $map_symb = &Apache::lonnet::symbread($map);
 1035:         }
 1036:     }
 1037: 
 1038:     #
 1039:     # If release is *not* because of a reservation change, i.e., this is a "drop"
 1040:     # by a student, or a removal for a single student by an instructor then
 1041:     # only remove one entry from slot_reservations.db, where both the user
 1042:     # and the symb match the current context.  If useslots was set to map or
 1043:     # map_map, then the symb to match in slot_reservations.db is the symb of
 1044:     # the enclosing map/folder, not the symb of the resource.
 1045:     #
 1046: 
 1047:     my ($match,$symb_to_check);
 1048:     if ($parm_level == 2) {
 1049:         $symb_to_check = $map_symb;
 1050:     } else {
 1051:         $symb_to_check = $parm_symb;
 1052:     }
 1053:     foreach my $entry (keys(%consumed)) {
 1054:         if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) {
 1055:             if ($consumed{$entry}->{'symb'} eq $symb_to_check) {
 1056:                 if (&Apache::lonnet::del('slot_reservations',[$entry],
 1057:                                          $cdom,$cnum) eq 'ok') {
 1058:                     $match = $symb_to_check;
 1059:                 }
 1060:                 last;
 1061:             }
 1062:         }
 1063:     }
 1064:     if ($match) {
 1065:         if (&update_selectable($navmap,$slot_name,$symb,$cdom,
 1066:                                $cnum,$udom,$uname,$context) =~ /^error/) {
 1067:             if ($mgr eq 'F') {
 1068:                 $msg = &mt('Reservation release partially complete for: [_1]',"$uname:$udom").'<br />'.
 1069:                        &mt('Update of availablestudent parameter for [_1] was not completed.',"$uname:$udom");
 1070:             } else {
 1071:                 $msg = &mt('Release partially complete for: [_1]',$description);
 1072:             }
 1073:             return (0,$msg);
 1074:         } else {
 1075:             if ($mgr eq 'F') {
 1076:                 $msg = &mt('Released Reservation for user: [_1]',"$uname:$udom");
 1077:             } else {
 1078:                 $msg = '<p style="font-weight: bold;">'.
 1079:                        &mt('Released reservation: [_1]',$description).'</p>';
 1080:                 my $person = &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'});
 1081:                 my $subject = &mt('Reservation change: [_1]',$description);
 1082:                 my $msgbody = &mt('Reservation released by [_1] for [_2].',$person,$description);
 1083:                 $msg .= &slot_change_messaging($slot{'reservationmsg'},$subject,$msgbody,'release');
 1084:             }
 1085:             return (1,$msg);
 1086:         }
 1087:     } else {
 1088:         $msg = &mt('Release failed for: [_1]',$description);
 1089:         return (0,$msg);
 1090:     }
 1091: }
 1092: 
 1093: sub update_selectable {
 1094:     my ($navmap,$slot_name,$symb,$cdom,$cnum,$udom,$uname,$context) = @_;
 1095:     return 'error: ' unless (ref($navmap));
 1096:     my $symb_for_parm = $symb;
 1097:     my $passed_resource = $navmap->getBySymb($symb);
 1098:     return 'error: invalid symb' unless (ref($passed_resource));
 1099: 
 1100:     # if the reservation symb is for a map get a resource in that map
 1101:     # to check slot parameters on
 1102:     if ($passed_resource->is_map()) {
 1103:         my ($a_resource) =
 1104:             $navmap->retrieveResources($passed_resource,
 1105:                                        sub {$_[0]->is_problem() || $_[0]->is_tool() },0,1);
 1106:         $symb_for_parm = $a_resource->symb();
 1107:     }
 1108:     # get parameter string, check for existence, rebuild string with the slot
 1109:     my $student = &Apache::lonnet::EXT('resource.0.availablestudent',
 1110:                                        $symb_for_parm,$udom,$uname);
 1111: 
 1112:     # Get value of useslots parameter in effect for this user.
 1113:     # If value is map or map_map, then the parm level is 2 (i.e.,
 1114:     # non-recursive enclosing map/folder level for specific user)
 1115:     # and the symb for this reservation in slot_reservations.db
 1116:     # will be the symb of the map itself.
 1117: 
 1118:     my $use_slots = &Apache::lonnet::EXT('resource.0.useslots',
 1119:                                          $symb_for_parm,$udom,$uname);
 1120:     &Apache::lonxml::debug("use_slots is  $use_slots<br />");
 1121: 
 1122:     if (&Apache::lonnet::error($use_slots)) {
 1123:         return 'error: Unable to determine current status';
 1124:     }
 1125: 
 1126:     my $parm_level = 1;
 1127:     if ($use_slots eq 'map' || $use_slots eq 'map_map') {
 1128:         $parm_level = 2;
 1129:     }
 1130: 
 1131:     my @slots = split(/:/,$student);
 1132: 
 1133:     my @new_slots;
 1134:     foreach my $exist_slot (@slots) {
 1135:         next if ($exist_slot eq $slot_name);
 1136:         push(@new_slots,$exist_slot);
 1137:     }
 1138:     my $new_value = join(':',@new_slots);
 1139: 
 1140:     my $result = &store_slot_parm($symb_for_parm,$symb,$slot_name,$parm_level,
 1141:                                   $new_value,$cnum,$cdom,$uname,$udom,'release',
 1142:                                   $context,1);
 1143:     return $result;
 1144: }
 1145: 
 1146: sub delete_slot {
 1147:     my ($r)=@_;
 1148: 
 1149:     my $slot_name = $env{'form.slotname'};
 1150:     my %slot=&Apache::lonnet::get_slot($slot_name);
 1151: 
 1152:     my ($cnum,$cdom)=&get_course();
 1153:     my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
 1154: 				       "^$slot_name\0");
 1155:     my ($tmp) = %consumed;
 1156:     if ($tmp =~ /error: 2/) { undef(%consumed); }
 1157: 
 1158:     if (%slot && !%consumed) {
 1159: 	$slot{'type'} = 'deleted';
 1160: 	my $ret = &Apache::lonnet::cput('slots', {$slot_name => \%slot},
 1161: 					$cdom, $cnum);
 1162: 	if ($ret eq 'ok') {
 1163: 	    $r->print('<p>'.&mt('Slot [_1] marked as deleted.','<tt>'.$slot_name.'</tt>').'</p>');
 1164: 	} else {
 1165: 	    $r->print('<p class="LC_error">'.&mt('An error occurred when attempting to delete slot: [_1]','<tt>'.$slot_name.'</tt>')." ($ret)</p>");
 1166: 	}
 1167:     } else {
 1168: 	if (%consumed) {
 1169: 	    $r->print('<p>'.&mt('Slot [_1] has active reservations.','<tt>'.$slot_name.'</tt>').'</p>');
 1170: 	} else {
 1171: 	    $r->print('<p>'.&mt('Slot [_1] does not exist.','<tt>'.$slot_name.'</tt>').'</p>');
 1172: 	}
 1173:     }
 1174:     $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
 1175: 	      &mt('Return to slot list').'</a></p>');
 1176:     &return_link($r);
 1177: }
 1178: 
 1179: sub return_link {
 1180:     my ($r) = @_;
 1181:     my $target = &return_target();
 1182:     if (($env{'form.command'} eq 'manageresv') || ($env{'form.context'} eq 'usermanage')) {
 1183: 	$r->print('<p><a href="/adm/slotrequest?command=manageresv" target="'.$target.'">'.
 1184:                   &mt('Return to reservations').'</a></p>'); 
 1185:     } else {
 1186:         $r->print('<p><a href="/adm/flip?postdata=return:" target="'.$target.'">'.
 1187: 	          &mt('Return to last resource').'</a></p>');
 1188:     }
 1189: }
 1190: 
 1191: sub return_target {
 1192:     my ($target,$ltitarget,$deeplinktarget);
 1193:     if ($env{'request.lti.login'}) {
 1194:          $ltitarget = $env{'request.lti.target'};
 1195:     }
 1196:     if ($env{'request.deeplink.login'}) {
 1197:         $deeplinktarget = $env{'request.deeplink.target'};
 1198:     }
 1199:     if (($ltitarget eq 'iframe') || ($deeplinktarget eq '_self')) {
 1200:         $target = '_self';
 1201:     } else {
 1202:         $target = '_top';
 1203:     }
 1204:     return $target;
 1205: }
 1206: 
 1207: sub get_slot {
 1208:     my ($r,$symb,$conflictable_slot,$inhibit_return_link)=@_;
 1209: 
 1210:     my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
 1211:     my $slot_name=&check_for_conflict($symb,$env{'form.slotname'},\%slot);
 1212: 
 1213:     if ($slot_name =~ /^error: (.*)/) {
 1214: 	$r->print('<p class="LC_error">'
 1215:                  .&mt('An error occurred while attempting to make a reservation. ([_1])',$1)
 1216:                  .'</p>');
 1217: 	&return_link($r);
 1218: 	return 0;
 1219:     }
 1220:     if ($slot_name && $slot_name ne $conflictable_slot) {
 1221: 	my %slot=&Apache::lonnet::get_slot($slot_name);
 1222: 	my $description1=&get_description($slot_name,\%slot);
 1223:         my $slottype1=$slot{'type'};
 1224: 	%slot=&Apache::lonnet::get_slot($env{'form.slotname'});
 1225: 	my $description2=&get_description($env{'form.slotname'},\%slot);
 1226:         if ($slottype1 eq 'preassigned') {
 1227:             $r->print('<p>'.&mt('You already have a reservation: "[_1]", assigned by your instructor.',
 1228:                                 $description1).'</p>'.
 1229:                       '<p>'.&mt('Your instructor must unassign it before you can make a new reservation.').
 1230:                       '</p>');
 1231:         } elsif ($slot_name ne $env{'form.slotname'}) {
 1232: 	    $r->print(<<STUFF);
 1233: <form method="post" action="/adm/slotrequest">
 1234:    <input type="hidden" name="symb" value="$env{'form.symb'}" />
 1235:    <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
 1236:    <input type="hidden" name="releaseslot" value="$slot_name" />
 1237:    <input type="hidden" name="command" value="change" />
 1238: STUFF
 1239:             $r->print('<p class="LC_error">'.&mt('Reservation currently unchanged').'</p>');
 1240:             if ($slot_name ne '') {
 1241:                 $r->print('<p>'.&mt('To complete the transaction you [_1]must confirm[_2] you want to [_3]process the change[_4] to [_5].'
 1242:                          ,'<b>','</b>','<i>','</i>','<b>'.$description2.'</b>')
 1243:                          .'<br />'
 1244:                          .&mt('Or you can choose to [_1]make no change[_2] and continue[_2] with the reservation you already had: [_3].'
 1245:                          ,'<i>','</i>','<b>'.$description1.'</b>')
 1246:                          .'</p><p><span class="LC_nobreak">'
 1247:                          .'<input type="submit" name="change" value="'.&mt('Process the change').'" />' 
 1248:                          .('&nbsp;'x3)
 1249:                          .'<input type="submit" name="nochange" value="'.&mt('Make no change').'" />'
 1250:                          .'</span></p>');
 1251:             }
 1252: 	    $r->print(<<STUFF);
 1253: </form>
 1254: STUFF
 1255:         } else {
 1256:             $r->print('<p>'.&mt('Already have a reservation: [_1].',$description1).'</p>');
 1257: 	    &return_link($r);
 1258: 	}
 1259: 	return 0;
 1260:     }
 1261: 
 1262:     my ($cnum,$cdom)=&get_course();
 1263:     my $reserved=&make_reservation($env{'form.slotname'},
 1264: 				   \%slot,$symb,$cnum,$cdom);
 1265:     my $description=&get_description($env{'form.slotname'},\%slot);
 1266:     if (defined($reserved)) {
 1267: 	my $retvalue = 0;
 1268: 	if ($slot_name =~ /^error: (.*)/) {
 1269: 	    $r->print('<p class="LC_error">'
 1270:                      .&mt('An error occurred while attempting to make a reservation. ([_1])',$1)
 1271:                      .'</p>');
 1272: 	} elsif ($reserved > -1) {
 1273: 	    $r->print('<p style="font-weight: bold;">'.&mt('Successfully signed up:  [_1]',$description).'</p>');
 1274: 	    $retvalue = 1;
 1275:             my $person = &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'});
 1276:             my $subject = &mt('Reservation change: [_1]',$description);
 1277:             my $msgbody = &mt('Successful reservation by [_1] for [_2].',$person,$description);
 1278:             my $msg = &slot_change_messaging($slot{'reservationmsg'},$subject,$msgbody,'reserve');
 1279:             if ($msg) {
 1280:                 $r->print($msg);
 1281:             }
 1282: 	} elsif ($reserved < 0) {
 1283: 	    $r->print('<p>'.&mt('Already reserved: [_1]',$description).'</p>');
 1284: 	}
 1285: 	if (!$inhibit_return_link) { &return_link($r); }
 1286: 	return 1;
 1287:     }
 1288: 
 1289:     my %lt = &Apache::lonlocal::texthash(
 1290:         'request' => 'Availability list',
 1291:         'try'     => 'Try again?',
 1292:         'or'      => 'or',
 1293:     );
 1294: 
 1295:     my $extra_input;
 1296:     if ($conflictable_slot) {
 1297: 	$extra_input='<input type="hidden" name="releaseslot" value="'.$env{'form.slotname'}.'" />';
 1298:     }
 1299: 
 1300:     $r->print('<p>'.&mt('[_1]Failed[_2] to reserve a slot for [_3].','<span class="LC_warning">','</span>',$description).'</p>');
 1301:     $r->print(<<STUFF);
 1302: <p>
 1303: <form method="post" action="/adm/slotrequest">
 1304:    <input type="submit" name="Try Again" value="$lt{'try'}" />
 1305:    <input type="hidden" name="symb" value="$env{'form.symb'}" />
 1306:    <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
 1307:    <input type="hidden" name="command" value="$env{'form.command'}" />
 1308:    $extra_input
 1309: </form>
 1310: </p>
 1311: <p>
 1312: $lt{'or'}
 1313: <form method="post" action="/adm/slotrequest">
 1314:     <input type="hidden" name="symb" value="$env{'form.symb'}" />
 1315:     <input type="submit" name="requestattempt" value="$lt{'request'}" />
 1316: </form>
 1317: STUFF
 1318: 
 1319:     if (!$inhibit_return_link) { 
 1320:         $r->print(&mt('or').'</p>');
 1321:         &return_link($r);
 1322:     } else {
 1323:         $r->print('</p>');
 1324:     }
 1325:     return 0;
 1326: }
 1327: 
 1328: sub allowed_slot {
 1329:     my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods,$toskip)=@_;
 1330: 
 1331:     #already started
 1332:     if ($slot->{'starttime'} < time) {
 1333: 	return 0;
 1334:     }
 1335:     &Apache::lonxml::debug("$slot_name starttime good");
 1336: 
 1337:     #already ended
 1338:     if ($slot->{'endtime'} < time) {
 1339: 	return 0;
 1340:     }
 1341:     &Apache::lonxml::debug("$slot_name endtime good");
 1342: 
 1343:     # not allowed to pick this one
 1344:     if (defined($slot->{'type'})
 1345: 	&& $slot->{'type'} ne 'schedulable_student') {
 1346: 	return 0;
 1347:     }
 1348:     &Apache::lonxml::debug("$slot_name type good");
 1349: 
 1350:     # reserve time not yet started
 1351:     if ($slot->{'startreserve'} > time) {
 1352: 	return 0;
 1353:     }
 1354:     # reserve time ended
 1355:     if (($slot->{'endreserve'}) &&
 1356:         ($slot->{'endreserve'} < time)) {
 1357:         return 0;
 1358:     }
 1359:     &Apache::lonxml::debug("$slot_name reserve good");
 1360: 
 1361:     my $userallowed=0;
 1362:     # its for a different set of users
 1363:     if (defined($slot->{'allowedsections'})) {
 1364: 	if (!defined($env{'request.role.sec'})
 1365: 	    && grep(/^No section assigned$/,
 1366: 		    split(',',$slot->{'allowedsections'}))) {
 1367: 	    $userallowed=1;
 1368: 	}
 1369: 	if (defined($env{'request.role.sec'})
 1370: 	    && grep(/^\Q$env{'request.role.sec'}\E$/,
 1371: 		    split(',',$slot->{'allowedsections'}))) {
 1372: 	    $userallowed=1;
 1373: 	}
 1374: 	if (defined($env{'request.course.groups'})) {
 1375: 	    my @groups = split(/:/,$env{'request.course.groups'});
 1376: 	    my @allowed_sec = split(',',$slot->{'allowedsections'});
 1377: 	    foreach my $group (@groups) {
 1378: 		if (grep {$_ eq $group} (@allowed_sec)) {
 1379: 		    $userallowed=1;
 1380: 		    last;
 1381: 		}
 1382: 	    }
 1383: 	}
 1384:     }
 1385:     &Apache::lonxml::debug("$slot_name sections is $userallowed");
 1386: 
 1387:     # its for a different set of users
 1388:     if (defined($slot->{'allowedusers'})
 1389: 	&& grep(/^\Q$env{'user.name'}:$env{'user.domain'}\E$/,
 1390: 		split(',',$slot->{'allowedusers'}))) {
 1391: 	$userallowed=1;
 1392:     }
 1393: 
 1394:     if (!defined($slot->{'allowedusers'})
 1395: 	&& !defined($slot->{'allowedsections'})) {
 1396: 	$userallowed=1;
 1397:     }
 1398: 
 1399:     &Apache::lonxml::debug("$slot_name user is $userallowed");
 1400:     return 0 if (!$userallowed);
 1401: 
 1402:     # not allowed for this resource
 1403:     if (defined($slot->{'symb'})) {
 1404:         my $exclude = 1;
 1405:         my @symbs;
 1406:         if ($slot->{'symb'} =~ /,/) {
 1407:             @symbs = split(/\s*,\s*/,$slot->{'symb'});
 1408:         } else {
 1409:             @symbs = ($slot->{'symb'});
 1410:         }
 1411:         my ($map,$id,$url) = &Apache::lonnet::decode_symb($symb);
 1412:         foreach my $reqsymb (@symbs) {
 1413:             next if ($reqsymb eq '');
 1414:             my ($slotmap,$slotid,$sloturl) = &Apache::lonnet::decode_symb($reqsymb);
 1415:             if ($sloturl=~/\.(page|sequence)$/) {
 1416:                 if (($map ne '') && ($map eq $sloturl)) {
 1417:                     $exclude = 0;
 1418:                     last;
 1419:                 }
 1420:             } elsif ($reqsymb eq $symb) {
 1421:                 $exclude = 0;
 1422:                 last;
 1423:             }
 1424:         }
 1425:         if ($exclude) {
 1426:             unless ((ref($toskip) eq 'HASH') && ($toskip->{'symb'})) {
 1427: 	        return 0;
 1428:             }
 1429:         }
 1430:     }
 1431: 
 1432:     my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots,
 1433: 				       $consumed_uniqueperiods);
 1434:     if ($conflict =~ /^error: /) {
 1435:         return 0;
 1436:     } elsif ($conflict ne '') {
 1437: 	if ($slots->{$conflict}{'starttime'} < time) {
 1438: 	    return 0;
 1439: 	}
 1440:     }
 1441:     &Apache::lonxml::debug("$slot_name symb good");
 1442:     return 1;
 1443: }
 1444: 
 1445: sub get_description {
 1446:     my ($slot_name,$slot)=@_;
 1447:     my $description=$slot->{'description'};
 1448:     if (!defined($description)) {
 1449: 	$description=&mt('[_1] From [_2] to [_3]',$slot_name,
 1450: 			 &Apache::lonlocal::locallocaltime($slot->{'starttime'}),
 1451: 			 &Apache::lonlocal::locallocaltime($slot->{'endtime'}));
 1452:     }
 1453:     return $description;
 1454: }
 1455: 
 1456: sub show_choices {
 1457:     my ($symb,$formname,$num,$class,$slots,$consumed_uniqueperiods,$available,$got_slots)=@_;
 1458:     my $output;
 1459:     &Apache::lonxml::debug("Checking Slots");
 1460:     if (!ref($available) eq 'ARRAY') {
 1461:         return;
 1462:     }
 1463:     if (!@{$available}) {
 1464:         $output = '<p class="LC_info">'.&mt('No available times.').'</p>';
 1465:         if ($env{'form.command'} ne 'manageresv') {
 1466:             my $target = &return_target();
 1467:             $output .= ' <a href="/adm/flip?postdata=return:" target="'.$target.'">'.
 1468:                        &mt('Return to last resource').'</a>';
 1469:         }
 1470:         if ($class) {
 1471:             return '<div class="'.$class.'">'.$output.'</div>';
 1472:         } else {
 1473:             return $output;
 1474:         }
 1475:     } elsif ($env{'form.command'} ne 'manageresv') {
 1476:         my $title = &Apache::lonnet::gettitle($symb);
 1477:         my $headertext = &mt('Manage Reservation(s) for [_1]',$title);
 1478:         $output .= '<h2 class="LC_heading_3">'.$headertext.'</h2>';
 1479:     }
 1480:     if (@{$available} > 1) {
 1481:         my $numavailable = scalar(@{$available});
 1482:         my $numreserved = 0;
 1483:         my $js;
 1484:         my $j = 0;
 1485:         foreach my $got (@{$got_slots}) {
 1486:             unless (($got eq '') || (!defined($got))) {
 1487:                 $numreserved ++;
 1488:                 if ($env{'form.command'} eq 'manageresv') {
 1489:                     $js .= "    currslot[$j]='$got';\n";
 1490:                     $j++;
 1491:                 }
 1492:             }
 1493:         }
 1494:         my $showfilter = 'none';
 1495:         $output .= '<fieldset><legend>'.&mt('Actions').':</legend>'."\n".
 1496:                    '<form method="post" name="reservationdisplay_'.$num.
 1497:                    '" action="" onsubmit="toggleSlotDisplay(this.form,'."'$num'".');">';
 1498:         my @options = ('all','filter');
 1499:         if ($numreserved) {
 1500:             unshift(@options,'show');
 1501:         }
 1502:         my %resmenu = &Apache::lonlocal::texthash (
 1503:                                          show   => 'Show current reservation',
 1504:                                          all    => 'Show all', 
 1505:                                          filter => 'Search by date',
 1506:                      );
 1507:         foreach my $option (@options) {
 1508:             my $onclick = "toggleSlotDisplay(this.form,'$num');";
 1509:             if (($option eq 'show') && ($env{'form.command'} eq 'manageresv')) {
 1510:                 $onclick .= "currSlotDisplay$num(this.form,'$num');"; 
 1511:             }
 1512:             $output .= '<span class="LC_nobreak"><label>'.
 1513:                        '<input type="radio" class="LC_slotpick_radio" name="slotpick" value="'.
 1514:                        $option.'" onclick="'.$onclick.'" />'.
 1515:                        $resmenu{$option}.
 1516:                        '</label></span>'.('&nbsp;' x3)."\n";
 1517:         }
 1518:         $output .= '</form>';
 1519:         my $chooserform = 'reservationchooser_'.$num;
 1520:         my $starttime = $slots->{$available->[0]}->{'starttime'};
 1521:         my $endtime = $slots->{$available->[-1]}->{'starttime'};
 1522:         if ($env{'form.command'} eq 'manageresv') {
 1523:             $output .= <<"ENDSCRIPT";
 1524: 
 1525: <script type="text/javascript">
 1526: // <![CDATA[
 1527: function currSlotDisplay$num() {
 1528:     var currslot = new Array($numreserved);
 1529: $js
 1530:     for (var j=0; j<$numreserved; j++) {
 1531:         if (document.getElementById('LC_slotrow_$num\_'+currslot[j])) {
 1532:             document.getElementById('LC_slotrow_$num\_'+currslot[j]).style.display = '';
 1533:         }
 1534:     }
 1535: }
 1536: // ]]>
 1537: </script>
 1538: 
 1539: ENDSCRIPT
 1540:         }
 1541:         $output .=
 1542:             '<div id="LC_slotfilter_'.$num.'" style="display:'.$showfilter.'">'.
 1543:             '<form method="post" name="'.$chooserform.'" action="">'.
 1544:             '<table class="LC_manage_reservations"><tr><th>'.&mt('Open after').'</th><td>'.
 1545:             &Apache::lonhtmlcommon::date_setter($chooserform,'start',$starttime,'','','','','','','',1,1).
 1546:             '</td></tr><tr><th>'.&mt('Closed before').'</th><td>'.
 1547:             &Apache::lonhtmlcommon::date_setter($chooserform,'end',$endtime,'','','','','','','',1,1).
 1548:             '</td></tr></table><br />'.
 1549:             '<input type="button" name="slotfilter" value="Search for reservable slots" onclick="updateSlotDisplay(this.form,'."'$num'".');" />'.
 1550:             '</form></div><div id="LC_slotsearch_'.$num.'" style="display:none"><hr />';
 1551:     }
 1552:     if ($env{'form.command'} eq 'manageresv') {
 1553:         $output .= '<table border="0" class="LC_manage_reservations">'.
 1554:                    '<tr><th>'.&mt('Action').'</th><th>'.&mt('Name').'</th></tr>';
 1555:     } else {
 1556:         $output .= &Apache::loncommon::start_data_table().
 1557:                    &Apache::loncommon::start_data_table_header_row().
 1558:                    '<th>'.&mt('Action').'</th><th>'.&mt('Name').'</th>'.
 1559:                    &Apache::loncommon::end_data_table_header_row();
 1560:     }
 1561:     my $shownsymb;
 1562:     if ($env{'request.role.adv'}) {
 1563:         $shownsymb = $symb;
 1564:     } elsif (&Apache::lonnet::EXT('resource.0.encrypturl',$symb) =~ /^yes$/i) {
 1565:         $shownsymb = &Apache::lonenc::encrypted($symb);
 1566:     } else {
 1567:         $shownsymb = $symb;
 1568:     }
 1569:     $shownsymb = &escape($shownsymb);
 1570:     foreach my $slot (@{$available}) {
 1571: 	my $description=&get_description($slot,$slots->{$slot});
 1572: 	my $form;
 1573: 	if ((grep(/^\Q$slot\E$/,@{$got_slots})) ||
 1574: 	    &space_available($slot,$slots->{$slot},$symb)) {
 1575: 	    my $text=&mt('Select');
 1576: 	    my $command='get';
 1577: 	    if (grep(/^\Q$slot\E$/,@{$got_slots})) {
 1578: 		$text=&mt('Drop Reservation');
 1579: 		$command='release';
 1580: 	    } else {
 1581: 		my $conflict = &check_for_conflict($symb,$slot,$slots->{$slot},
 1582: 						   $slots,$consumed_uniqueperiods);
 1583:                 if ($conflict) {
 1584:                     if ($conflict =~ /^error: /) {
 1585:                         $form = '<span class="LC_error">'.
 1586:                                  &mt('Slot: [_1] has unknown status.',$description).
 1587:                                  '</span>';
 1588:                     } else {
 1589: 		        $text=&mt('Change Reservation');
 1590: 		        $command='get';
 1591: 		    }
 1592:                 }
 1593: 	    }
 1594:             if (!$form) {
 1595:                 my $name;
 1596:                 if ($formname) {
 1597:                      $name = 'name="'.$formname.'"';
 1598:                 }
 1599:                 my $context = 'user';
 1600:                 if ($env{'form.command'} eq 'manageresv') {
 1601:                     $context = 'usermanage';
 1602:                 }
 1603: 	        $form=<<STUFF;
 1604:    <form method="post" action="/adm/slotrequest" $name>
 1605:      <input type="submit" name="Select" value="$text" />
 1606:      <input type="hidden" name="symb" value="$shownsymb" />
 1607:      <input type="hidden" name="slotname" value="$slot" />
 1608:      <input type="hidden" name="command" value="$command" />
 1609:      <input type="hidden" name="context" value="$context" />
 1610:    </form>
 1611: STUFF
 1612: 	    }
 1613:         } else {
 1614:             $form = &mt('Unavailable');
 1615:         }
 1616:         if ($env{'form.command'} eq 'manageresv') {
 1617:             $output .= '<tr id="LC_slotrow_'.$num.'_'.$slot.'" >';
 1618:         } else {
 1619: 	    $output .= &Apache::loncommon::start_data_table_row('','LC_slotrow_'.$num.'_'.$slot);
 1620:         }
 1621:         $output .= " 
 1622:  <td>$form</td>
 1623:  <td>$description</td>\n";
 1624:         if ($env{'form.command'} eq 'manageresv') {
 1625:             $output .= '</tr>';
 1626:         } else {
 1627:             $output .= &Apache::loncommon::end_data_table_row();
 1628:         }
 1629:     }
 1630:     if ($env{'form.command'} eq 'manageresv') {
 1631:         $output .= '</table>';
 1632:     } else {
 1633:         $output .= &Apache::loncommon::end_data_table();
 1634:     }
 1635:     if (@{$available} > 1) {
 1636:         $output .= '</div></fieldset>';
 1637:     }
 1638:     if ($class) {
 1639:         return '<div class="'.$class.'">'.$output.'</div>';
 1640:     } else {
 1641:         return $output;
 1642:     }
 1643: }
 1644: 
 1645: sub to_show {
 1646:     my ($slotname,$slot,$when,$deleted,$name) = @_;
 1647:     my $time=time;
 1648:     my $week=60*60*24*7;
 1649: 
 1650:     if ($deleted eq 'hide' && $slot->{'type'} eq 'deleted') {
 1651: 	return 0;
 1652:     }
 1653: 
 1654:     if ($name && $name->{'value'} =~ /\w/) {
 1655: 	if ($name->{'type'} eq 'substring') {
 1656: 	    if ($slotname !~ /\Q$name->{'value'}\E/) {
 1657: 		return 0;
 1658: 	    }
 1659: 	}
 1660: 	if ($name->{'type'} eq 'exact') {
 1661: 	    if ($slotname eq $name->{'value'}) {
 1662: 		return 0;
 1663: 	    }
 1664: 	}
 1665:     }
 1666: 
 1667:     if ($when eq 'any') {
 1668: 	return 1;
 1669:     } elsif ($when eq 'now') {
 1670: 	if ($time > $slot->{'starttime'} &&
 1671: 	    $time < $slot->{'endtime'}) {
 1672: 	    return 1;
 1673: 	}
 1674: 	return 0;
 1675:     } elsif ($when eq 'nextweek') {
 1676: 	if ( ($time        < $slot->{'starttime'} &&
 1677: 	      ($time+$week) > $slot->{'starttime'})
 1678: 	     ||
 1679: 	     ($time        < $slot->{'endtime'} &&
 1680: 	      ($time+$week) > $slot->{'endtime'}) ) {
 1681: 	    return 1;
 1682: 	}
 1683: 	return 0;
 1684:     } elsif ($when eq 'lastweek') {
 1685: 	if ( ($time        > $slot->{'starttime'} &&
 1686: 	      ($time-$week) < $slot->{'starttime'})
 1687: 	     ||
 1688: 	     ($time        > $slot->{'endtime'} &&
 1689: 	      ($time-$week) < $slot->{'endtime'}) ) {
 1690: 	    return 1;
 1691: 	}
 1692: 	return 0;
 1693:     } elsif ($when eq 'willopen') {
 1694: 	if ($time < $slot->{'starttime'}) {
 1695: 	    return 1;
 1696: 	}
 1697: 	return 0;
 1698:     } elsif ($when eq 'wereopen') {
 1699: 	if ($time > $slot->{'endtime'}) {
 1700: 	    return 1;
 1701: 	}
 1702: 	return 0;
 1703:     }
 1704: 
 1705:     return 1;
 1706: }
 1707: 
 1708: sub remove_link {
 1709:     my ($slotname,$entry,$uname,$udom,$symb) = @_;
 1710: 
 1711:     my $remove = &mt('Remove');
 1712: 
 1713:     if ($entry eq 'remove all') {
 1714: 	$remove = &mt('Remove All');
 1715: 	undef($uname);
 1716: 	undef($udom);
 1717:     }
 1718: 
 1719:     my $shownsymb;
 1720:     if ($env{'request.role.adv'}) {
 1721:         $shownsymb = $symb;
 1722:     } elsif (&Apache::lonnet::EXT('resource.0.encrypturl',$symb) =~ /^yes$/i) {
 1723:         $shownsymb = &Apache::lonenc::encrypted($symb);
 1724:     } else {
 1725:         $shownsymb = $symb;
 1726:     }
 1727: 
 1728:     $slotname  = &escape($slotname);
 1729:     $entry     = &escape($entry);
 1730:     $uname     = &escape($uname);
 1731:     $udom      = &escape($udom);
 1732:     $symb      = &escape($shownsymb);
 1733: 
 1734:     return <<"END_LINK";
 1735:  <a href="/adm/slotrequest?command=remove_registration&amp;slotname=$slotname&amp;entry=$entry&amp;uname=$uname&amp;udom=$udom&amp;symb=$symb&amp;context=manage"
 1736:    >($remove)</a>
 1737: END_LINK
 1738: 
 1739: }
 1740: 
 1741: sub show_table {
 1742:     my ($r,$mgr)=@_;
 1743: 
 1744:     my ($cnum,$cdom)=&get_course();
 1745:     my $crstype=&Apache::loncommon::course_type($cdom.'_'.$cnum);
 1746:     my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
 1747:     if ( (keys(%slots))[0] =~ /^error: 2 /) {
 1748: 	undef(%slots);
 1749:     } 
 1750:     my $available;
 1751:     if ($mgr eq 'F') {
 1752: 	$r->print('<div>');
 1753: 	$r->print('<form method="post" action="/adm/slotrequest">
 1754: <input type="hidden" name="command" value="uploadstart" />
 1755: <input type="submit" name="start" value="'.&mt('Upload Slot List').'" />
 1756: </form>');
 1757: 	$r->print(&Apache::loncommon::help_open_topic('Slot CommaDelimited'));
 1758: 	$r->print('<form method="post" action="/adm/helper/newslot.helper">
 1759: <input type="submit" name="newslot" value="'.&mt('Create a New Slot').'" />
 1760: </form>');
 1761: 	$r->print(&Apache::loncommon::help_open_topic('Slot About'));
 1762: 	$r->print('</div>');
 1763:     }
 1764: 
 1765:     if (!keys(%slots)) {
 1766:         $r->print(
 1767:             '<p class="LC_info">'
 1768:            .&mt('No slots have been created in this '.lc($crstype).'.')
 1769:            .'</p>'
 1770:         );
 1771:         return;
 1772:     }
 1773: 
 1774:     my %Saveable_Parameters = ('show'              => 'array',
 1775: 			       'when'              => 'scalar',
 1776: 			       'order'             => 'scalar',
 1777: 			       'deleted'           => 'scalar',
 1778: 			       'name_filter_type'  => 'scalar',
 1779: 			       'name_filter_value' => 'scalar',
 1780: 			       );
 1781:     &Apache::loncommon::store_course_settings('slotrequest',
 1782: 					      \%Saveable_Parameters);
 1783:     &Apache::loncommon::restore_course_settings('slotrequest',
 1784: 						\%Saveable_Parameters);
 1785:     &Apache::grades::init_perm();
 1786:     my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all');
 1787:     &Apache::grades::reset_perm();
 1788: 
 1789:     # what to display filtering
 1790:     my %show_fields=&Apache::lonlocal::texthash(
 1791: 	     'name'            => 'Slot Name',
 1792: 	     'description'     => 'Description',
 1793: 	     'type'            => 'Type',
 1794: 	     'starttime'       => 'Start time',
 1795: 	     'endtime'         => 'End Time',
 1796:              'startreserve'    => 'Time students can start reserving',
 1797:              'endreserve'      => 'Time students can no longer reserve',
 1798:              'reservationmsg'  => 'Message triggered by reservation',
 1799: 	     'secret'          => 'Secret Word',
 1800: 	     'space'           => '# of students/max',
 1801: 	     'ip'              => 'IP or DNS restrictions',
 1802: 	     'symb'            => 'Resource(s)/Map(s) slot is restricted to.',
 1803: 	     'allowedsections' => 'Sections slot is restricted to.',
 1804: 	     'allowedusers'    => 'Users slot is restricted to.',
 1805: 	     'uniqueperiod'    => 'Period of time slot is unique',
 1806: 	     'scheduled'       => 'Scheduled Students',
 1807: 	     'proctor'         => 'List of proctors',
 1808: 	     'iptied'          => 'Unique IP each student',);
 1809:     if ($crstype eq 'Community') {
 1810:         $show_fields{'startreserve'} = &mt('Time members can start reserving');
 1811:         $show_fields{'endreserve'} = &mt('Time members can no longer reserve');
 1812:         $show_fields{'scheduled'} = &mt('Scheduled Members');
 1813:     }
 1814:     my @show_order=('name','description','type','starttime','endtime',
 1815: 		    'startreserve','endreserve','reservationmsg','secret','space',
 1816: 		    'ip','iptied','symb','allowedsections','allowedusers','uniqueperiod',
 1817: 		    'scheduled','proctor');
 1818:     my @show = 
 1819: 	(exists($env{'form.show'})) ? &Apache::loncommon::get_env_multiple('form.show')
 1820: 	                            : keys(%show_fields);
 1821:     my %show =  map { $_ => 1 } (@show);
 1822: 
 1823:     #when filtering setup
 1824:     my %when_fields=&Apache::lonlocal::texthash(
 1825: 	     'now'      => 'Open now',
 1826: 	     'nextweek' => 'Open within the next week',
 1827: 	     'lastweek' => 'Were open last week',
 1828: 	     'willopen' => 'Will open later',
 1829: 	     'wereopen' => 'Were open',
 1830: 	     'any'      => 'Anytime',
 1831: 						);
 1832:     my @when_order=('any','now','nextweek','lastweek','willopen','wereopen');
 1833:     $when_fields{'select_form_order'} = \@when_order;
 1834:     my $when = 	(exists($env{'form.when'})) ? $env{'form.when'}
 1835:                                             : 'now';
 1836: 
 1837:     #display of students setup
 1838:     my %stu_display_fields=
 1839: 	&Apache::lonlocal::texthash('username' => 'User name',
 1840: 				    'fullname' => 'Full name',
 1841: 				    );
 1842:     my @stu_display_order=('fullname','username');
 1843:     my @stu_display = 
 1844: 	(exists($env{'form.studisplay'})) ? &Apache::loncommon::get_env_multiple('form.studisplay')
 1845: 	                                  : keys(%stu_display_fields);
 1846:     my %stu_display =  map { $_ => 1 } (@stu_display);
 1847: 
 1848:     #name filtering setup
 1849:     my %name_filter_type_fields=
 1850: 	&Apache::lonlocal::texthash('substring' => 'Substring',
 1851: 				    'exact'     => 'Exact',
 1852: 				    #'reg'       => 'Regular Expression',
 1853: 				    );
 1854:     my @name_filter_type_order=('substring','exact');
 1855: 
 1856:     $name_filter_type_fields{'select_form_order'} = \@name_filter_type_order;
 1857:     my $name_filter_type = 
 1858: 	(exists($env{'form.name_filter_type'})) ? $env{'form.name_filter_type'}
 1859:                                                 : 'substring';
 1860:     my $name_filter = {'type'  => $name_filter_type,
 1861: 		       'value' => $env{'form.name_filter_value'},};
 1862: 
 1863: 
 1864:     #deleted slot filtering
 1865:     #default to hide if no value
 1866:     $env{'form.deleted'} ||= 'hide';
 1867:     my $hide_radio = 
 1868: 	&Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'hide');
 1869:     my $show_radio = 
 1870: 	&Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'show');
 1871: 	
 1872:     $r->print('<form method="post" action="/adm/slotrequest">
 1873: <input type="hidden" name="command" value="showslots" />');
 1874:     $r->print('<div>');
 1875:     $r->print('<table class="inline">
 1876:       <tr><th><label for="show">'.&mt('Show').'</label></th>
 1877:           <th><label for="studisplay">'.&mt('Student Display').'</label></th>
 1878:           <th><label for="when">'.&mt('Open').'</label></th>
 1879:           <th><label for="name_filter_type">'.&mt('Slot Name Filter').'</label></th>
 1880:           <th>'.&mt('Options').'</th>
 1881:       </tr>
 1882:       <tr><td valign="top">'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order,'show').
 1883: 	      '</td>
 1884:            <td valign="top">
 1885:          '.&Apache::loncommon::multiple_select_form('studisplay',\@stu_display,
 1886: 						    6,\%stu_display_fields,
 1887: 						    \@stu_display_order,'studisplay').'
 1888:            </td>
 1889:            <td valign="top">'.&Apache::loncommon::select_form($when,'when',\%when_fields,'','','when').
 1890:           '</td>
 1891:            <td valign="top"><span class="LC_nobreak">'.&Apache::loncommon::select_form($name_filter_type,
 1892: 						 'name_filter_type',
 1893: 						 \%name_filter_type_fields,'','','name_filter_type').
 1894: 	      '&nbsp;'.
 1895: 	      &Apache::lonhtmlcommon::textbox('name_filter_value',
 1896: 					      $env{'form.name_filter_value'},
 1897: 					      15,'aria-label="'.&mt('Name filter').'"').
 1898:           '</span></td>
 1899:            <td valign="top">
 1900:              <fieldset class="LC_delete_slot">
 1901:               <legend>'.&mt('Deleted slots').'</legend>
 1902:                <span class="LC_nobreak"><label>'.$show_radio.&mt('Show').'</label>&nbsp;&nbsp;&nbsp;
 1903:                <label>'.$hide_radio.&mt('Hide').'</label></span>
 1904:              </fieldset>
 1905: 	   </td>
 1906:        </tr>
 1907:     </table>');
 1908:     $r->print('</div>');
 1909:     $r->print('<p><input type="submit" name="start" value="'.&mt('Update Display').'" /></p>');
 1910:     my $linkstart='<a href="/adm/slotrequest?command=showslots&amp;order=';
 1911:     my $tableheader = &Apache::loncommon::start_data_table().
 1912: 	              &Apache::loncommon::start_data_table_header_row().'
 1913: 	              <th><span class="LC_visually_hidden">'.&mt('Action').'</span></th>';
 1914:     foreach my $which (@show_order) {
 1915: 	if ($which ne 'proctor' && exists($show{$which})) {
 1916: 	    $tableheader .= '<th>'.$linkstart.$which.'">'.$show_fields{$which}.'</a></th>';
 1917: 	}
 1918:     }
 1919:     $tableheader .= &Apache::loncommon::end_data_table_header_row();
 1920:     my $shownheader = 0;
 1921: 
 1922:     my %name_cache;
 1923:     my $slotsort = sub {
 1924: 	if ($env{'form.order'}=~/^(type|description|endtime|startreserve|endreserve|ip|symb|allowedsections|allowedusers|reservationmsg)$/) {
 1925: 	    if (lc($slots{$a}->{$env{'form.order'}})
 1926: 		ne lc($slots{$b}->{$env{'form.order'}})) {
 1927: 		return (lc($slots{$a}->{$env{'form.order'}}) 
 1928: 			cmp lc($slots{$b}->{$env{'form.order'}}));
 1929: 	    }
 1930: 	} elsif ($env{'form.order'} eq 'space') {
 1931: 	    if ($slots{$a}{'maxspace'} ne $slots{$b}{'maxspace'}) {
 1932: 		return ($slots{$a}{'maxspace'} cmp $slots{$b}{'maxspace'});
 1933: 	    }
 1934: 	} elsif ($env{'form.order'} eq 'name') {
 1935: 	    if (lc($a) cmp lc($b)) {
 1936: 		return lc($a) cmp lc($b);
 1937: 	    }
 1938: 	} elsif ($env{'form.order'} eq 'uniqueperiod') {
 1939: 
 1940: 	    if ($slots{$a}->{'uniqueperiod'}[0] 
 1941: 		ne $slots{$b}->{'uniqueperiod'}[0]) {
 1942: 		return ($slots{$a}->{'uniqueperiod'}[0]
 1943: 			cmp $slots{$b}->{'uniqueperiod'}[0]);
 1944: 	    }
 1945: 	    if ($slots{$a}->{'uniqueperiod'}[1] 
 1946: 		ne $slots{$b}->{'uniqueperiod'}[1]) {
 1947: 		return ($slots{$a}->{'uniqueperiod'}[1]
 1948: 			cmp $slots{$b}->{'uniqueperiod'}[1]);
 1949: 	    }
 1950: 	}
 1951: 	return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'};
 1952:     };
 1953: 
 1954:     my %consumed;
 1955:     if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
 1956: 	%consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum);
 1957: 	my ($tmp)=%consumed;
 1958: 	if ($tmp =~ /^error: /) { undef(%consumed); }
 1959:     }
 1960: 
 1961:     my %msgops = &slot_reservationmsg_options();
 1962: 
 1963:     foreach my $slot (sort $slotsort (keys(%slots)))  {
 1964: 	if (!&to_show($slot,$slots{$slot},$when,
 1965: 		      $env{'form.deleted'},$name_filter)) { next; }
 1966:         my $reservemsg;
 1967: 	if (defined($slots{$slot}->{'type'})
 1968: 	    && $slots{$slot}->{'type'} eq 'schedulable_student') {
 1969: 	    $reservemsg = $msgops{$slots{$slot}->{'reservationmsg'}};
 1970: 	}
 1971: 	my $description=&get_description($slot,$slots{$slot});
 1972: 	my ($id_count,$ids);
 1973: 
 1974: 	if (exists($show{'scheduled'}) || exists($show{'space'}) ) {
 1975: 	    my $re_str = "$slot\0";
 1976: 	    my @this_slot = grep(/^\Q$re_str\E/,keys(%consumed));
 1977: 	    $id_count = scalar(@this_slot);
 1978: 	    if (exists($show{'scheduled'})) {
 1979: 		foreach my $entry (sort { $consumed{$a}{name} cmp 
 1980: 					      $consumed{$b}{name} }
 1981: 				   (@this_slot)) {
 1982: 		    my (undef,$id)=split("\0",$entry);
 1983: 		    my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
 1984: 		    $ids.= '<span class="LC_nobreak">';
 1985: 		    foreach my $item (@stu_display_order) {
 1986: 			if ($stu_display{$item}) {
 1987: 			    if ($item eq 'fullname') {
 1988: 				$ids.=$fullname->{"$uname:$udom"}.' ';
 1989: 			    } elsif ($item eq 'username') {
 1990: 				$ids.="<tt>$uname:$udom</tt> ";
 1991: 			    }
 1992: 			}
 1993: 		    }
 1994: 		    $ids.=&remove_link($slot,$entry,$uname,$udom,
 1995: 				       $consumed{$entry}{'symb'}).'</span><br />';
 1996: 		}
 1997: 	    }
 1998: 	}
 1999: 
 2000: 	my $start=($slots{$slot}->{'starttime'}?
 2001: 		   &Apache::lonlocal::locallocaltime($slots{$slot}->{'starttime'}):'');
 2002: 	my $end=($slots{$slot}->{'endtime'}?
 2003: 		 &Apache::lonlocal::locallocaltime($slots{$slot}->{'endtime'}):'');
 2004: 	my $start_reserve=($slots{$slot}->{'startreserve'}?
 2005: 			   &Apache::lonlocal::locallocaltime($slots{$slot}->{'startreserve'}):'');
 2006:         my $end_reserve=($slots{$slot}->{'endreserve'}?
 2007:                          &Apache::lonlocal::locallocaltime($slots{$slot}->{'endreserve'}):'');
 2008: 	
 2009: 	my $unique;
 2010: 	if (ref($slots{$slot}{'uniqueperiod'})) {
 2011: 	    $unique=localtime($slots{$slot}{'uniqueperiod'}[0]).', '.
 2012: 		localtime($slots{$slot}{'uniqueperiod'}[1]);
 2013: 	}
 2014: 
 2015: 	my @titles;
 2016: 	if (exists($slots{$slot}{'symb'})) {
 2017:             my @symbs;
 2018:             if ($slots{$slot}{'symb'} =~ /,/) {
 2019:                 @symbs = split(/\s*,\s*/,$slots{$slot}{'symb'});
 2020:             } else {
 2021:                 @symbs = ($slots{$slot}{'symb'});
 2022:             }
 2023:             foreach my $reqsymb (@symbs) {
 2024: 	        my (undef,undef,$res) =
 2025: 		    &Apache::lonnet::decode_symb($reqsymb);
 2026: 	        $res = &Apache::lonnet::clutter($res);
 2027: 	        my $title = &Apache::lonnet::gettitle($reqsymb);
 2028: 	        push(@titles,'<a href="'.$res.'?symb='.$reqsymb.'">'.$title.'</a>');
 2029:             }
 2030: 	}
 2031: 
 2032: 	my $allowedsections;
 2033: 	if (exists($show{'allowedsections'})) {
 2034: 	    $allowedsections = 
 2035: 		join(', ',sort(split(/\s*,\s*/,
 2036: 				     $slots{$slot}->{'allowedsections'})));
 2037: 	}
 2038: 
 2039: 	my @allowedusers;
 2040: 	if (exists($show{'allowedusers'})) {
 2041: 	    @allowedusers= map {
 2042: 		my ($uname,$udom)=split(/:/,$_);
 2043: 		my $fullname=$name_cache{$_};
 2044: 		if (!defined($fullname)) {
 2045: 		    $fullname = &Apache::loncommon::plainname($uname,$udom);
 2046: 		    $fullname =~s/\s/&nbsp;/g;
 2047: 		    $name_cache{$_} = $fullname;
 2048: 		}
 2049: 		&Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
 2050: 	    } (sort(split(/\s*,\s*/,$slots{$slot}->{'allowedusers'})));
 2051: 	}
 2052: 	my $allowedusers=join(', ',@allowedusers);
 2053: 	
 2054: 	my @proctors;
 2055: 	my $rowspan=1;
 2056: 	my $colspan=1;
 2057: 	if (exists($show{'proctor'})) {
 2058: 	    $rowspan=2;
 2059: 	    @proctors= map {
 2060: 		my ($uname,$udom)=split(/:/,$_);
 2061: 		my $fullname=$name_cache{$_};
 2062: 		if (!defined($fullname)) {
 2063: 		    $fullname = &Apache::loncommon::plainname($uname,$udom);
 2064: 		    $fullname =~s/\s/&nbsp;/g;
 2065: 		    $name_cache{$_} = $fullname;
 2066: 		}
 2067: 		&Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
 2068: 	    } (sort(split(/\s*,\s*/,$slots{$slot}->{'proctor'})));
 2069: 	}
 2070: 	my $proctors=join(', ',@proctors);
 2071: 
 2072:         my %lt = &Apache::lonlocal::texthash (
 2073:                                                edit   => 'Edit',
 2074:                                                delete => 'Delete',
 2075:                                                slotlog => 'History',
 2076:         );
 2077:         my ($edit,$delete,$showlog,$remove_all);
 2078:         if ($mgr) {
 2079: 	    $edit=(<<"EDITLINK");
 2080: <p class="LC_medium_line"><a href="/adm/helper/newslot.helper?name=$slot">$lt{'edit'}</a></p>
 2081: EDITLINK
 2082: 
 2083: 	    $delete=(<<"DELETELINK");
 2084: <p class="LC_medium_line"><a href="/adm/slotrequest?command=delete&amp;slotname=$slot">$lt{'delete'}</a></p>
 2085: DELETELINK
 2086: 
 2087:             $remove_all=&remove_link($slot,'remove all').'<br />';
 2088: 
 2089:             if ($ids eq '') {
 2090:                 undef($remove_all);
 2091:             } else {
 2092:                 undef($delete);
 2093:             }
 2094:         }
 2095: 
 2096:         $showlog=(<<"LOGLINK");
 2097: <p class="LC_medium_line"><a href="/adm/slotrequest?command=slotlog&amp;slotname=$slot">$lt{'slotlog'}</a></p>
 2098: LOGLINK
 2099: 
 2100: 	if ($slots{$slot}{'type'} ne 'schedulable_student') {
 2101:             undef($showlog); 
 2102: 	    undef($remove_all);
 2103: 	}
 2104: 
 2105:         unless ($shownheader) {
 2106:             $r->print($tableheader);
 2107:             $shownheader = 1;
 2108:         }
 2109: 
 2110: 	my $row_start=&Apache::loncommon::start_data_table_row();
 2111: 	my $row_end=&Apache::loncommon::end_data_table_row();
 2112:         $r->print($row_start.
 2113: 		  "\n<td rowspan=\"$rowspan\">$edit $delete $showlog</td>\n");
 2114: 	if (exists($show{'name'})) {
 2115: 	    $colspan++;$r->print("<td>$slot</td>");
 2116: 	}
 2117: 	if (exists($show{'description'})) {
 2118: 	    $colspan++;$r->print("<td>$description</td>\n");
 2119: 	}
 2120: 	if (exists($show{'type'})) {
 2121: 	    $colspan++;$r->print("<td>$slots{$slot}->{'type'}</td>\n");
 2122: 	}
 2123: 	if (exists($show{'starttime'})) {
 2124: 	    $colspan++;$r->print("<td>$start</td>\n");
 2125: 	}
 2126: 	if (exists($show{'endtime'})) {
 2127: 	    $colspan++;$r->print("<td>$end</td>\n");
 2128: 	}
 2129: 	if (exists($show{'startreserve'})) {
 2130: 	    $colspan++;$r->print("<td>$start_reserve</td>\n");
 2131: 	}
 2132:         if (exists($show{'endreserve'})) {
 2133:             $colspan++;$r->print("<td>$end_reserve</td>\n");
 2134:         }
 2135:         if (exists($show{'reservationmsg'})) {
 2136:             $colspan++;$r->print("<td>$reservemsg</td>\n");
 2137:         }
 2138: 	if (exists($show{'secret'})) {
 2139: 	    $colspan++;$r->print("<td>$slots{$slot}{'secret'}</td>\n");
 2140: 	}
 2141: 	if (exists($show{'space'})) {
 2142: 	    my $display = $id_count;
 2143: 	    if ($slots{$slot}{'maxspace'}>0) {
 2144: 		$display.='/'.$slots{$slot}{'maxspace'};
 2145: 		if ($slots{$slot}{'maxspace'} <= $id_count) {
 2146: 		    $display = '<strong>'.$display.' (full) </strong>';
 2147: 		}
 2148: 	    }
 2149: 	    $colspan++;$r->print("<td>$display</td>\n");
 2150: 	}
 2151: 	if (exists($show{'ip'})) {
 2152: 	    $colspan++;$r->print("<td>$slots{$slot}{'ip'}</td>\n");
 2153: 	}
 2154:         if (exists($show{'iptied'})) {
 2155:             $colspan++;
 2156:             if ($slots{$slot}{'iptied'} eq 'yes') {
 2157:                 $r->print('<td>'.&mt('Yes')."</td>\n");
 2158:             } elsif ($slots{$slot}{'iptied'} eq 'answer') {
 2159:                 $r->print('<td>'.&mt('Yes, including post-answer date')."</td>\n");
 2160:             } else {
 2161:                 $r->print('<td>'.&mt('No')."</td>\n");
 2162:             }
 2163:         }
 2164: 	if (exists($show{'symb'})) {
 2165: 	    $colspan++;$r->print("<td>".join('<br />',@titles)."</td>\n");
 2166: 	}
 2167: 	if (exists($show{'allowedsections'})) {
 2168: 	    $colspan++;$r->print("<td>$allowedsections</td>\n");
 2169: 	}
 2170: 	if (exists($show{'allowedusers'})) {
 2171: 	    $colspan++;$r->print("<td>$allowedusers</td>\n");
 2172: 	}
 2173: 	if (exists($show{'uniqueperiod'})) {
 2174: 	    $colspan++;$r->print("<td>$unique</td>\n");
 2175: 	}
 2176: 	if (exists($show{'scheduled'})) {
 2177: 	    $colspan++;$r->print("<td>$remove_all $ids</td>\n");
 2178: 	}
 2179: 	$r->print("$row_end\n");
 2180: 	if (exists($show{'proctor'})) {
 2181: 	    $r->print(<<STUFF);
 2182: $row_start
 2183:  <td colspan="$colspan">$proctors</td>
 2184: $row_end
 2185: STUFF
 2186:         }
 2187:     }
 2188:     if ($shownheader) {
 2189:         $r->print(&Apache::loncommon::end_data_table());
 2190:     } else {
 2191:         $r->print('<p>'.&mt('No slots meet the criteria for display').'</p>');
 2192:     }
 2193:     $r->print('</form>');
 2194:     return;
 2195: }
 2196: 
 2197: sub manage_reservations {
 2198:     my ($r,$crstype,$slots,$consumed_uniqueperiods,$allavailable) = @_;
 2199:     my ($cnum,$cdom)=&get_course();
 2200:     my $navmap = Apache::lonnavmaps::navmap->new();
 2201:     $r->print('<p>'
 2202:              .&mt('Instructors may use a reservation system to place restrictions on when and where assignments can be worked on.')
 2203:              .'<br />'
 2204:              .&mt('One example is for management of laboratory space, which is only available at certain times, and has a limited number of seats.')
 2205:              .'</p>'
 2206:     );
 2207:     if (!defined($navmap)) {
 2208:         $r->print('<div class="LC_error">');
 2209:         if ($crstype eq 'Community') {
 2210:             $r->print(&mt('Unable to retrieve information about community contents'));
 2211:         } else {
 2212:             $r->print(&mt('Unable to retrieve information about course contents'));
 2213:         }
 2214:         $r->print('</div>');
 2215:         &Apache::lonnet::logthis('Manage Reservations - could not create navmap object in '.lc($crstype).':'.$env{'request.course.id'});
 2216:         return;
 2217:     }
 2218:     if (ref($consumed_uniqueperiods) eq 'HASH') {
 2219:         if (&Apache::lonnet::error(%$consumed_uniqueperiods)) {
 2220:             $r->print('<span class="LC_error">'.
 2221:                       &mt('An error occurred determining slot availability.').
 2222:                       '</span>');
 2223:             return;
 2224:         }
 2225:     } elsif ($consumed_uniqueperiods =~ /^error: /) {
 2226:         $r->print('<span class="LC_error">'.
 2227:                   &mt('An error occurred determining slot availability.').
 2228:                   '</span>');
 2229:         return;
 2230:     }
 2231:     my (%output,%slotinfo,%statusbymap,%repsymbs,%shownmaps);
 2232:     my @possibles = $navmap->retrieveResources(undef,
 2233:                                               sub { $_[0]->is_problem() || $_[0]->is_tool() },1,0);
 2234: 
 2235:     foreach my $resource (@possibles) {
 2236:         my ($useslots) = $resource->slot_control();
 2237:         next if (($useslots eq '') || ($useslots =~ /^\s*no\s*$/i));
 2238:         my $symb = $resource->symb();
 2239:         my ($slot_status,$date,$slot_name) = $resource->check_for_slot('0');
 2240:         my ($msg,$get_choices,$slotdescription);
 2241:         my $status = $resource->simpleStatus('0');
 2242:         my ($msg,$get_choices,$slotdescription);
 2243:         if ($slot_name ne '') {
 2244:             my %slot=&Apache::lonnet::get_slot($slot_name);
 2245:             $slotdescription=&get_description($slot_name,\%slot);
 2246:         }
 2247:         if ($slot_status == $resource->NOT_IN_A_SLOT) {
 2248:             $msg=&mt('No current reservation.');
 2249:             $get_choices = 1;
 2250:         } elsif ($slot_status == $resource->NEEDS_CHECKIN) {
 2251:             $msg='<span class="LC_nobreak">'.&mt('Reserved:').
 2252:                  '&nbsp;'.$slotdescription.'</span><br />'.
 2253:                  &mt('Access requires proctor validation.');
 2254:         } elsif ($slot_status == $resource->WAITING_FOR_GRADE) {
 2255:             $msg=&mt('Submitted and currently in grading queue.');
 2256:         } elsif ($slot_status == $resource->CORRECT) {
 2257:             $msg=&mt('Problem is unavailable.');
 2258:         } elsif ($slot_status == $resource->RESERVED) {
 2259:             $msg='<span class="LC_nobreak">'.&mt('Reserved:').
 2260:                  '&nbsp;'.$slotdescription.'</span><br />'.
 2261:                  &mt('Problem is currently available.');
 2262:         } elsif ($slot_status == $resource->RESERVED_LOCATION) {
 2263:             $msg='<span class="LC_nobreak">'.&mt('Reserved:').
 2264:                  '&nbsp;'.$slotdescription.'</span><br />'.
 2265:                  &mt('Problem is available at a different location.');
 2266:             $get_choices = 1;
 2267:         } elsif ($slot_status == $resource->RESERVED_LATER) {
 2268:             $msg='<span class="LC_nobreak">'.&mt('Reserved:').
 2269:                  '&nbsp;'.$slotdescription.'</span><br />'.
 2270:                  &mt('Problem will be available later.');
 2271:             $get_choices = 1;
 2272:         } elsif ($slot_status == $resource->RESERVABLE) {
 2273:             $msg=&mt('Reservation needed');
 2274:             $get_choices = 1;
 2275:         } elsif ($slot_status == $resource->RESERVABLE_LATER) {
 2276:             $msg=&mt('Reservation needed: will be reservable later.');
 2277:         } elsif ($slot_status == $resource->NOTRESERVABLE) {
 2278:             $msg=&mt('Reservation needed: none available.');
 2279:         } elsif ($slot_status == $resource->UNKNOWN) {
 2280:             $msg=&mt('Unable to determine status due to network problems.');
 2281:         } else {
 2282:             if ($status != $resource->OPEN) {
 2283:                 $msg = &Apache::lonnavmaps::getDescription($resource,'0');
 2284:             }
 2285:         }
 2286:         $output{$symb}{'msg'} = $msg;
 2287:         if (($status == $resource->OPEN) && ($get_choices)) {
 2288:             $output{$symb}{'hasaction'} = 1;
 2289:         }
 2290:         my ($mapurl,$id,$resurl) = &Apache::lonnet::decode_symb($symb);
 2291:         $mapurl = &Apache::lonnet::clutter($mapurl);
 2292:         unless ($mapurl =~ /default\.sequence$/) {
 2293:             $shownmaps{$mapurl} = 1;
 2294:             my $map = $navmap->getResourceByUrl($mapurl);
 2295:             if (ref($map)) {
 2296:                 my @pcs = split(/,/,$map->map_hierarchy());
 2297:                 shift(@pcs);
 2298:                 shift(@pcs);
 2299:                 if (@pcs) {
 2300:                     map { $shownmaps{$navmap->getByMapPc($_)->src()} = 1; } reverse(@pcs);
 2301:                 }
 2302:             }
 2303:         }
 2304:         if (($useslots eq 'map_map') || ($useslots eq 'map')) {
 2305:             if ($slot_status ne '') {
 2306:                 if (ref($statusbymap{$mapurl}{$slot_status}) eq 'ARRAY') {
 2307:                     push(@{$statusbymap{$mapurl}{$slot_status}},$symb);
 2308:                 } else {
 2309:                     $statusbymap{$mapurl}{$slot_status} = [$symb];
 2310:                 }
 2311:             }
 2312:         }
 2313:     }
 2314: 
 2315:     foreach my $mapurl (keys(%statusbymap)) {
 2316:         if (ref($statusbymap{$mapurl}) eq 'HASH') {
 2317:             if (keys(%{$statusbymap{$mapurl}}) == 1) {
 2318:                 my @values = values(%{$statusbymap{$mapurl}});
 2319:                 my $repsymb = $values[0][0];
 2320:                 if (ref($output{$repsymb}) eq 'HASH') {
 2321:                     $output{$mapurl}{'msg'} = $output{$repsymb}{'msg'};
 2322:                     $output{$mapurl}{'hasaction'} = $output{$repsymb}{'hasaction'};
 2323:                 }
 2324:                 $repsymbs{$mapurl} = $repsymb;
 2325:             }
 2326:         }
 2327:     }
 2328: 
 2329:     my (%parent,%container,%container_title);
 2330:     my ($depth,$count,$reservable,$currcontainer,$rownum,$mapnum,$shown) = (0,0,0,0,0,0,0);
 2331:     my @backgrounds = ("LC_even_row","LC_odd_row");
 2332:     my $numcolors = scalar(@backgrounds);
 2333:     my $location=&Apache::loncommon::lonhttpdurl("/adm/lonIcons/whitespace_21.gif");
 2334:     my $slotheader = '<p>'.
 2335:                  &mt('Your reservation status for any such assignments is listed below:').
 2336:                  '</p>'.
 2337:                  '<table class="LC_data_table LC_tableOfContent" id="LC_slot_reservations">'."\n".
 2338:                  '<tr class="LC_visually_hidden">'.
 2339:                  '<th>'.&mt('Resource or Folder').'</th>'.
 2340:                  '<th colspan="2">'.&mt('Reservation Status').'</th></tr>'."\n";
 2341:     my $shownheader = 0;
 2342:     my $currmap;
 2343:     my $it=$navmap->getIterator(undef,undef,undef,1,undef,undef);
 2344:     while (my $resource = $it->next()) {
 2345:         if ($resource == $it->BEGIN_MAP()) {
 2346:             $depth++;
 2347:             $parent{$depth} = $currcontainer;
 2348:             if (ref($container{$currcontainer})) {
 2349:                 my $currmapres = $container{$currcontainer};
 2350:                 my $currmaptitle = $container_title{$currcontainer};
 2351:                 $currmap = $currmapres->src();
 2352:                 my $currmaptype = 'sequence';
 2353:                 if ($currmapres->is_page()) {
 2354:                     $currmaptype = 'page';
 2355:                 }
 2356:                 if ($shownmaps{$currmap}) {
 2357:                     $mapnum ++;
 2358:                     $rownum ++;
 2359:                     $shown ++;
 2360:                     if (!$shownheader) {
 2361:                         $r->print($slotheader);
 2362:                         $shownheader = 1;
 2363:                     }
 2364:                     my $bgcolor = $backgrounds[$shown % $numcolors];
 2365:                     my ($spacers,$icon);
 2366:                     my $row = '<tr class="'.$bgcolor.'" id="LC_slotmaprow_'.$rownum.'">';
 2367:                     if (ref($statusbymap{$currmap}) eq 'HASH') {
 2368:                         my ($spacers,$icon) = &show_map_row($depth-1,$location,$currmaptype,$currmaptitle);
 2369:                         my $arrowstate = 'open';
 2370:                         if (keys(%{$statusbymap{$currmap}}) == 1) {
 2371:                             $arrowstate = 'closed';
 2372:                         }
 2373:                         $row .= '<td>'.$spacers.'<img src="/adm/lonIcons/arrow.'.$arrowstate.'.gif" '.
 2374:                                 'id="arrow'.$mapnum.'" '.'alt="arrow" onmouseover="this.style.cursor=\'pointer\'" tabindex="0" '.
 2375:                                 'onclick="'."toggleSlotMap('$mapnum','$rownum');".'" onkeydown="'."toggleSlotMap('$mapnum','$rownum');".'" />'.
 2376:                                 $icon.('&nbsp;' x6).'</td>'."\n";
 2377:                         if (ref($output{$currmap}) eq 'HASH') {
 2378:                             my $formnum = $mapnum.'_'.$reservable+1;
 2379:                             my $class = 'LC_slotmaptext_'.$mapnum;
 2380:                             if ($output{$currmap}{'hasaction'}) {
 2381:                                 $row .= '<td valign="top"><span class="'.$class.'">'.
 2382:                                           $output{$currmap}{'msg'}.
 2383:                                           '</span></td><td valign="top">'.
 2384:                                           &slot_chooser($repsymbs{$currmap},$class,$formnum,
 2385:                                                         $allavailable,$slots,$consumed_uniqueperiods).
 2386:                                           '</td>';
 2387:                             } else {
 2388:                                 $row .= '<td colspan="2" valign="middle"><span class="'.$class.'">'.
 2389:                                           $output{$currmap}{'msg'}.
 2390:                                           '</span></td>';
 2391:                             }
 2392:                             $row .= '</tr>'."\n";
 2393:                         } else {
 2394:                             $row .= '<td colspan="2">&nbsp;</td></tr>'."\n";
 2395:                         }
 2396:                     } else {
 2397:                         my ($spacers,$icon) = &show_map_row($depth,$location,$currmaptype,$currmaptitle);
 2398:                         $row .= '<td>'.$spacers.$icon.('&nbsp;' x6).'</td><td colspan="2">&nbsp;</td></tr>'."\n";
 2399:                     }
 2400:                     $r->print($row);
 2401:                 }
 2402:             }
 2403:         } elsif ($resource == $it->END_MAP()) {
 2404:             $depth--;
 2405:             $currcontainer = $parent{$depth};
 2406:         } elsif (ref($resource)) {
 2407:             my $symb = $resource->symb();
 2408:             my $src = $resource->src();
 2409:             my ($shownsymb,$shownsrc);
 2410:             $shownsymb = $resource->shown_symb();
 2411:             if ($resource->encrypted()) {
 2412:                 $shownsrc = &Apache::lonenc::encrypted($src);
 2413:             } else {
 2414:                 $shownsrc = $src;
 2415:             }
 2416:             next if (!$resource->is_problem() && !$resource->is_tool() &&
 2417:                      !$resource->is_sequence() && !$resource->is_page());
 2418:             $count ++;
 2419:             if (($resource->is_sequence()) || ($resource->is_page())) {
 2420:                 $currcontainer = $count;
 2421:                 $container{$currcontainer} = $resource;
 2422:                 $container_title{$currcontainer} = $resource->compTitle();
 2423:             }
 2424:             if ($resource->is_problem() || $resource->is_tool()) {
 2425:                 next unless (exists($output{$symb}));
 2426:                 $reservable ++;
 2427:                 $rownum ++;
 2428:                 if (!$shownheader) {
 2429:                     $r->print($slotheader);
 2430:                     $shownheader = 1;
 2431:                 }
 2432:                 my $style;
 2433:                 if (exists($output{$currmap})) {
 2434:                     $style = 'none';
 2435:                 } else {
 2436:                     $style = 'table-row';
 2437:                     $shown ++;
 2438:                 }
 2439:                 my $title = $resource->compTitle();
 2440:                 my $bgcolor = $backgrounds[$shown % $numcolors];
 2441:                 $r->print('<tr class="'.$bgcolor.' LC_slotresrow_'.$mapnum.'"'.
 2442:                           ' style="display:'.$style.'" id="LC_slotresrow_'.$rownum.'">'.
 2443:                           '<td>');
 2444:                 for (my $i=0; $i<$depth; $i++) {
 2445:                     $r->print('<img src="'.$location.'" alt="" />');
 2446:                 }
 2447:                 $r->print('<a href="'.$shownsrc.'?symb='.$shownsymb.'">'.
 2448:                           '<img class="LC_contentImage" src="/adm/lonIcons/');
 2449:                 if ($resource->is_task()) {
 2450:                     $r->print('task.gif" alt="'.&mt('Task'));
 2451:                 } elsif ($resource->is_tool()) {
 2452:                     $r->print('unknown.gif" alt="'.&mt('External Tool'));
 2453:                 } else {
 2454:                     $r->print('problem.gif" alt="'.&mt('Problem'));
 2455:                 }
 2456:                 $r->print('" /><b>'.$title.'</b></a>'.('&nbsp;' x6).'</td>');
 2457:                 my $class = 'LC_slottext_'.$mapnum;
 2458:                 if ($output{$symb}{'hasaction'}) {
 2459:                     $r->print('<td valign="top"><span class="'.$class.'">'.$output{$symb}{'msg'}.'</span></td>'.
 2460:                               '<td valign="top">'.
 2461:                               &slot_chooser($symb,$class,$reservable,$allavailable,$slots,
 2462:                                             $consumed_uniqueperiods).'</td>');
 2463:                 } else {
 2464:                     $r->print('<td colspan="2" valign="middle">'.
 2465:                               '<span class="'.$class.'">'.$output{$symb}{'msg'}.'</span>'.
 2466:                               '</td>');
 2467:                 }
 2468:                 $r->print('</tr>'."\n");
 2469:             }
 2470:         }
 2471:     }
 2472:     if ($shownheader) {
 2473:         $r->print('</table>');
 2474:     }
 2475:     if (!$reservable) {
 2476:         $r->print('<span class="LC_info">');
 2477:         if ($crstype eq 'Community') {
 2478:             $r->print(&mt('No community items currently require a reservation to gain access.'));
 2479:         } else {
 2480:             $r->print(&mt('No course items currently require a reservation to gain access.'));
 2481:         }
 2482:         $r->print('</span>');
 2483:     }
 2484:     $r->print('<p><a href="/adm/slotrequest?command=showresv">'.
 2485:               &mt('Reservation History').'</a></p>');
 2486: }
 2487: 
 2488: sub show_map_row {
 2489:     my ($depth,$location,$type,$title) = @_;
 2490:     my $spacers;
 2491:     for (my $i=0; $i<$depth-1; $i++) {
 2492:         $spacers .= '<img src="'.$location.'" alt="" />';
 2493:     }
 2494:     my $icon;
 2495:     if ($type eq 'page') {
 2496:         $icon = '<img src="/adm/lonIcons/navmap.page.open.gif" alt="" />&nbsp;'."\n";
 2497:     } else {
 2498:         $icon = '<img src="/adm/lonIcons/navmap.folder.open.gif" alt="" />&nbsp;'."\n";
 2499:     }
 2500:     $icon .= $title;
 2501:     return ($spacers,$icon);
 2502: }
 2503: 
 2504: sub slot_chooser {
 2505:     my ($symb,$class,$formnum,$allavailable,$slots,$consumed_uniqueperiods) = @_;
 2506:     my $output;
 2507:     my @got_slots=&check_for_reservation($symb,'allslots');
 2508:     if ($got_slots[0] =~ /^error: /) {
 2509:         $output = '<span class="'.$class.'"><span class="LC_error">'.
 2510:                   &mt('An error occurred determining slot availability.').
 2511:                   '</span></span>';
 2512:     } else {
 2513:         my $formname = 'manageres_'.$formnum;
 2514:         if (ref($allavailable) eq 'ARRAY') {
 2515:             my @available;
 2516:             if (ref($slots) eq 'HASH') {
 2517:                 foreach my $slot (@{$allavailable}) {
 2518:                     # not allowed for this resource
 2519:                     if (ref($slots->{$slot}) eq 'HASH') {
 2520:                         if ($slots->{$slot}->{'symb'} ne '') {
 2521:                             my ($map,$id,$url) = &Apache::lonnet::decode_symb($symb);
 2522:                             my $exclude = 1;
 2523:                             my @reqsymbs = split(/\s*,\s*/,$slots->{$slot}->{'symb'});
 2524:                             if (@reqsymbs) {
 2525:                                 if (grep(/^\Q$symb\E$/,@reqsymbs)) {
 2526:                                     $exclude = 0;
 2527:                                 } else {
 2528:                                     foreach my $reqsymb (@reqsymbs) {
 2529:                                         my (undef,undef,$sloturl) = &Apache::lonnet::decode_symb($reqsymb);
 2530:                                         if ($sloturl=~/\.(page|sequence)$/) {
 2531:                                             if (($map ne '') && ($map eq $sloturl)) {
 2532:                                                 $exclude = 0;
 2533:                                                 last;
 2534:                                             }
 2535:                                         }
 2536:                                     }
 2537:                                 }
 2538:                                 next if ($exclude);
 2539:                             }
 2540:                         }
 2541:                     }
 2542:                     push(@available,$slot);
 2543:                 }
 2544:             }
 2545:             $output .= &show_choices($symb,$formname,$formnum,$class,
 2546:                                      $slots,$consumed_uniqueperiods,
 2547:                                      \@available,\@got_slots);
 2548:         }
 2549:     }
 2550:     return $output;
 2551: }
 2552: 
 2553: sub show_reservations {
 2554:     my ($r,$uname,$udom) = @_;
 2555:     if (!defined($uname)) {
 2556:         $uname = $env{'user.name'};
 2557:     }
 2558:     if (!defined($udom)) {
 2559:         $udom = $env{'user.domain'};
 2560:     }
 2561:     my $formname = 'slotlog';
 2562:     my ($cnum,$cdom)=&get_course();
 2563:     my $crstype = &Apache::loncommon::course_type();
 2564:     my %log=&Apache::lonnet::dump('nohist_'.$cdom.'_'.$cnum.'_slotlog',$udom,$uname);
 2565:     if ($env{'form.origin'} eq 'aboutme') {
 2566:         $r->print('<div class="LC_fontsize_large">');
 2567:         my $name = &Apache::loncommon::plainname($env{'form.uname'},$env{'form.udom'},
 2568:                                                     'firstname');
 2569:         if ($crstype eq 'Community') {
 2570:             $r->print(&mt('History of member-reservable slots for: [_1]',
 2571:                           $name));
 2572:         } else {
 2573:             $r->print(&mt('History of student-reservable slots for: [_1]',
 2574:                           $name));
 2575: 
 2576:         }
 2577:         $r->print('</div>');
 2578:     }
 2579:     $r->print('<form action="/adm/slotrequest" method="post" name="'.$formname.'">');
 2580:     # set defaults
 2581:     my $now = time();
 2582:     my $defstart = $now - (7*24*3600); #7 days ago
 2583:     my %defaults = (
 2584:                      page           => '1',
 2585:                      show           => '10',
 2586:                      action         => 'any',
 2587:                      log_start_date => $defstart,
 2588:                      log_end_date   => $now,
 2589:                    );
 2590:     my $more_records = 0;
 2591: 
 2592:     # set current
 2593:     my %curr;
 2594:     foreach my $item ('show','page','action') {
 2595:         $curr{$item} = $env{'form.'.$item};
 2596:     }
 2597:     my ($startdate,$enddate) =
 2598:         &Apache::lonuserutils::get_dates_from_form('log_start_date',
 2599:                                                    'log_end_date');
 2600:     $curr{'log_start_date'} = $startdate;
 2601:     $curr{'log_end_date'} = $enddate;
 2602:     foreach my $key (keys(%defaults)) {
 2603:         if ($curr{$key} eq '') {
 2604:             $curr{$key} = $defaults{$key};
 2605:         }
 2606:     }
 2607:     my ($version) = ($r->dir_config('lonVersion') =~ /^([\d\.]+)\-/);
 2608:     $r->print(&display_filter($formname,$cdom,$cnum,\%curr,$version));
 2609:     my $showntablehdr = 0;
 2610:     my $tablehdr = &Apache::loncommon::start_data_table().
 2611:                    &Apache::loncommon::start_data_table_header_row().
 2612:                    '<th>&nbsp;</th><th>'.&mt('When').'</th><th>'.&mt('Action').'</th>'.
 2613:                    '<th>'.&mt('Description').'</th><th>'.&mt('Start time').'</th>'.
 2614:                    '<th>'.&mt('End time').'</th><th>'.&mt('Resource').'</th>'.
 2615:                    &Apache::loncommon::end_data_table_header_row();
 2616:     my ($minshown,$maxshown);
 2617:     $minshown = 1;
 2618:     my $count = 0;
 2619:     if ($curr{'show'} ne &mt('all')) {
 2620:         $maxshown = $curr{'page'} * $curr{'show'};
 2621:         if ($curr{'page'} > 1) {
 2622:             $minshown = 1 + ($curr{'page'} - 1) * $curr{'show'};
 2623:         }
 2624:     }
 2625:     my (%titles,%maptitles);
 2626:     my %lt = &reservationlog_contexts($crstype);
 2627:     foreach my $id (sort { $log{$b}{'exe_time'}<=>$log{$a}{'exe_time'} } (keys(%log))) {
 2628:         next if (($log{$id}{'exe_time'} < $curr{'log_start_date'}) ||
 2629:                  ($log{$id}{'exe_time'} > $curr{'log_end_date'}));
 2630:         if ($curr{'show'} ne &mt('all')) {
 2631:             if ($count >= $curr{'page'} * $curr{'show'}) {
 2632:                 $more_records = 1;
 2633:                 last;
 2634:             }
 2635:         }
 2636:         if ($curr{'action'} ne 'any') {
 2637:             next if ($log{$id}{'logentry'}{'action'} ne $curr{'action'});
 2638:         }
 2639:         $count ++;
 2640:         next if ($count < $minshown);
 2641:         if (!$showntablehdr) {
 2642:             $r->print($tablehdr);
 2643:             $showntablehdr = 1;
 2644:         }
 2645:         my $symb = $log{$id}{'logentry'}{'symb'};
 2646:         my $slot_name = $log{$id}{'logentry'}{'slot'};
 2647:         my %slot=&Apache::lonnet::get_slot($slot_name);
 2648:         my $description = $slot{'description'};
 2649:         my $start = ($slot{'starttime'}?
 2650:                      &Apache::lonlocal::locallocaltime($slot{'starttime'}):'');
 2651:         my $end = ($slot{'endtime'}?
 2652:                    &Apache::lonlocal::locallocaltime($slot{'endtime'}):'');
 2653:         my $title = &get_resource_title($symb,\%titles,\%maptitles);
 2654:         my $chgaction = $log{$id}{'logentry'}{'action'};
 2655:         if ($chgaction ne '' && $lt{$chgaction} ne '') {
 2656:             $chgaction = $lt{$chgaction};
 2657:         }
 2658:         $r->print(&Apache::loncommon::start_data_table_row().'<td>'.$count.'</td><td>'.&Apache::lonlocal::locallocaltime($log{$id}{'exe_time'}).'</td><td>'.$chgaction.'</td><td>'.$description.'</td><td>'.$start.'</td><td>'.$end.'</td><td>'.$title.'</td>'.&Apache::loncommon::end_data_table_row()."\n");
 2659:     }
 2660:     if ($showntablehdr) {
 2661:         $r->print(&Apache::loncommon::end_data_table().'<br />');
 2662:         if (($curr{'page'} > 1) || ($more_records)) {
 2663:             $r->print('<p>');
 2664:             if ($curr{'page'} > 1) {
 2665:                 $r->print('<input type="button" onclick="javascript:chgPage('."'previous'".');" value="'.
 2666:                           &mt('Previous [_1] changes',$curr{'show'}).'" />');
 2667:             }
 2668:             if ($more_records) {
 2669:                 $r->print('<input type="button" onclick="javascript:chgPage('."'next'".');" value="'.
 2670:                           &mt('Next [_1] changes',$curr{'show'}).'" />');
 2671:             }
 2672:             $r->print('</p>');
 2673:             $r->print(<<"ENDSCRIPT");
 2674: <script type="text/javascript">
 2675: // <![CDATA[
 2676: function chgPage(caller) {
 2677:     if (caller == 'previous') {
 2678:         document.$formname.page.value --;
 2679:     }
 2680:     if (caller == 'next') {
 2681:         document.$formname.page.value ++;
 2682:     }
 2683:     document.$formname.submit();
 2684:     return;
 2685: }
 2686: // ]]>
 2687: </script>
 2688: ENDSCRIPT
 2689:         }
 2690:     } else {
 2691:         $r->print('<span class="LC_info">'
 2692:                  .&mt('There are no transactions to display.')
 2693:                  .'</span>'
 2694:         );
 2695:     }
 2696:     $r->print('<input type="hidden" name="page" value="'.$curr{'page'}.'" />'."\n".
 2697:               '<input type="hidden" name="command" value="showresv" />'."\n");
 2698:     if ($env{'form.origin'} eq 'aboutme') {
 2699:         $r->print('<input type="hidden" name="origin" value="'.$env{'form.origin'}.'" />'."\n".
 2700:                   '<input type="hidden" name="uname" value="'.$env{'form.uname'}.'" />'."\n".
 2701:                   '<input type="hidden" name="udom" value="'.$env{'form.udom'}.'" />'."\n");
 2702:     }
 2703:     $r->print('</form>');
 2704:     return;
 2705: }
 2706: 
 2707: sub show_reservations_log {
 2708:     my ($r) = @_;
 2709:     my $badslot;
 2710:     my $crstype = &Apache::loncommon::course_type();
 2711:     if ($env{'form.slotname'} eq '') {
 2712:         $r->print('<div class="LC_warning">'.&mt('No slot name provided').'</div>');
 2713:         $badslot = 1;
 2714:     } else {
 2715:         my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
 2716:         if (keys(%slot) == 0) {
 2717:             $r->print('<div class="LC_warning">'.&mt('Invalid slot name: [_1]',$env{'form.slotname'}).'</div>');
 2718:             $badslot = 1;
 2719:         } elsif ($slot{type} ne 'schedulable_student') {
 2720:             my $description = &get_description($env{'form.slotname'},\%slot);
 2721:             $r->print('<div class="LC_warning">');
 2722:             if ($crstype eq 'Community') {
 2723:                 $r->print(&mt('Reservation history unavailable for non-member-reservable slot: [_1].',$description));
 2724:             } else {
 2725:                 $r->print(&mt('Reservation history unavailable for non-student-reservable slot: [_1].',$description));
 2726:             }
 2727:             $r->print('</div>');
 2728:             $badslot = 1;
 2729:         }
 2730:     }
 2731:     if ($badslot) {
 2732:         $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
 2733:                   &mt('Return to slot list').'</a></p>');
 2734:         return;
 2735:     }
 2736:     my $formname = 'reservationslog';
 2737:     my ($cnum,$cdom)=&get_course();
 2738:     my %slotlog=&Apache::lonnet::dump('nohist_slotreservationslog',$cdom,$cnum);
 2739:     if ((keys(%slotlog))[0]=~/^error\:/) { undef(%slotlog); }
 2740: 
 2741:     my (%log,@allsymbs);
 2742:     if (keys(%slotlog)) {
 2743:         foreach my $key (keys(%slotlog)) {
 2744:             if (ref($slotlog{$key}) eq 'HASH') {
 2745:                 if (ref($slotlog{$key}{'logentry'}) eq 'HASH') {
 2746:                     if ($slotlog{$key}{'logentry'}{'slot'} eq $env{'form.slotname'}) {
 2747:                         $log{$key} = $slotlog{$key};
 2748:                         if ($slotlog{$key}{'logentry'}{'symb'} ne '') {
 2749:                             push(@allsymbs,$slotlog{$key}{'logentry'}{'symb'});
 2750:                         }
 2751:                     }
 2752:                 }
 2753:             }
 2754:         }
 2755:     }
 2756: 
 2757:     $r->print('<form action="/adm/slotrequest" method="post" name="'.$formname.'">');
 2758:     my %saveable_parameters = ('show' => 'scalar',);
 2759:     &Apache::loncommon::store_course_settings('reservationslog',
 2760:                                               \%saveable_parameters);
 2761:     &Apache::loncommon::restore_course_settings('reservationslog',
 2762:                                                 \%saveable_parameters);
 2763:     # set defaults
 2764:     my $now = time();
 2765:     my $defstart = $now - (7*24*3600); #7 days ago
 2766:     my %defaults = (
 2767:                      page           => '1',
 2768:                      show           => '10',
 2769:                      chgcontext     => 'any',
 2770:                      action         => 'any',
 2771:                      symb           => 'any',
 2772:                      log_start_date => $defstart,
 2773:                      log_end_date   => $now,
 2774:                    );
 2775:     my $more_records = 0;
 2776: 
 2777:     # set current
 2778:     my %curr;
 2779:     foreach my $item ('show','page','chgcontext','action','symb') {
 2780:         $curr{$item} = $env{'form.'.$item};
 2781:     }
 2782:     my ($startdate,$enddate) =
 2783:         &Apache::lonuserutils::get_dates_from_form('log_start_date',
 2784:                                                    'log_end_date');
 2785:     $curr{'log_start_date'} = $startdate;
 2786:     $curr{'log_end_date'} = $enddate;
 2787:     foreach my $key (keys(%defaults)) {
 2788:         if ($curr{$key} eq '') {
 2789:             $curr{$key} = $defaults{$key};
 2790:         }
 2791:     }
 2792:     my (%whodunit,%changed,$version);
 2793:     ($version) = ($r->dir_config('lonVersion') =~ /^([\d\.]+)\-/);
 2794: 
 2795:     my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
 2796:     my $description = $slot{'description'};
 2797:     $r->print('<span class="LC_fontsize_large">');
 2798:     if ($crstype eq 'Community') {
 2799:         $r->print(&mt('Reservation changes for member-reservable slot: [_1]',$description));
 2800:     } else {
 2801:         $r->print(&mt('Reservation changes for student-reservable slot: [_1]',$description));
 2802:     }
 2803:     $r->print('</span><br />');
 2804:     $r->print(&display_filter($formname,$cdom,$cnum,\%curr,$version,\@allsymbs));
 2805:     my $showntablehdr = 0;
 2806:     my $tablehdr = &Apache::loncommon::start_data_table().
 2807:                    &Apache::loncommon::start_data_table_header_row().
 2808:                    '<th>&nbsp;</th><th>'.&mt('When').'</th><th>'.&mt('Who made the change').
 2809:                    '</th><th>'.&mt('Affected User').'</th><th>'.&mt('Action').'</th>'.
 2810:                    '<th>'.&mt('Resource').'</th><th>'.&mt('Context').'</th>'.
 2811:                    &Apache::loncommon::end_data_table_header_row();
 2812:     my ($minshown,$maxshown);
 2813:     $minshown = 1;
 2814:     my $count = 0;
 2815:     if ($curr{'show'} ne &mt('all')) {
 2816:         $maxshown = $curr{'page'} * $curr{'show'};
 2817:         if ($curr{'page'} > 1) {
 2818:             $minshown = 1 + ($curr{'page'} - 1) * $curr{'show'};
 2819:         }
 2820:     }
 2821:     my %lt = &reservationlog_contexts($crstype);
 2822:     my (%titles,%maptitles);
 2823:     foreach my $id (sort { $log{$b}{'exe_time'}<=>$log{$a}{'exe_time'} } (keys(%log))) {
 2824:         next if (($log{$id}{'exe_time'} < $curr{'log_start_date'}) ||
 2825:                  ($log{$id}{'exe_time'} > $curr{'log_end_date'}));
 2826:         if ($curr{'show'} ne &mt('all')) {
 2827:             if ($count >= $curr{'page'} * $curr{'show'}) {
 2828:                 $more_records = 1;
 2829:                 last;
 2830:             }
 2831:         }
 2832:         if ($curr{'chgcontext'} ne 'any') {
 2833:             if ($curr{'chgcontext'} eq 'user') {
 2834:                 next if (($log{$id}{'logentry'}{'context'} ne 'user') && 
 2835:                          ($log{$id}{'logentry'}{'context'} ne 'usermanage'));
 2836:             } else {
 2837:                 next if ($log{$id}{'logentry'}{'context'} ne $curr{'chgcontext'});
 2838:             }
 2839:         }
 2840:         if ($curr{'action'} ne 'any') {
 2841:             next if ($log{$id}{'logentry'}{'action'} ne $curr{'action'});
 2842:         }
 2843:         if ($curr{'symb'} ne 'any') {
 2844:             next if ($log{$id}{'logentry'}{'symb'} ne $curr{'symb'});
 2845:         }
 2846:         $count ++;
 2847:         next if ($count < $minshown);
 2848:         if (!$showntablehdr) {
 2849:             $r->print($tablehdr);
 2850:             $showntablehdr = 1;
 2851:         }
 2852:         if ($whodunit{$log{$id}{'exe_uname'}.':'.$log{$id}{'exe_udom'}} eq '') {
 2853:             $whodunit{$log{$id}{'exe_uname'}.':'.$log{$id}{'exe_udom'}} =
 2854:                 &Apache::loncommon::plainname($log{$id}{'exe_uname'},$log{$id}{'exe_udom'});
 2855:         }
 2856:         if ($changed{$log{$id}{'uname'}.':'.$log{$id}{'udom'}} eq '') {
 2857:             $changed{$log{$id}{'uname'}.':'.$log{$id}{'udom'}} =
 2858:                 &Apache::loncommon::plainname($log{$id}{'uname'},$log{$id}{'udom'});
 2859:         }
 2860:         my $symb = $log{$id}{'logentry'}{'symb'};
 2861:         my $title = &get_resource_title($symb,\%titles,\%maptitles); 
 2862:         my $chgcontext = $log{$id}{'logentry'}{'context'};
 2863:         if ($chgcontext ne '' && $lt{$chgcontext} ne '') {
 2864:             $chgcontext = $lt{$chgcontext};
 2865:         }
 2866:         my $chgaction = $log{$id}{'logentry'}{'action'};
 2867:         if ($chgaction ne '' && $lt{$chgaction} ne '') {
 2868:             $chgaction = $lt{$chgaction}; 
 2869:         }
 2870:         $r->print(&Apache::loncommon::start_data_table_row().'<td>'.$count.'</td><td>'.&Apache::lonlocal::locallocaltime($log{$id}{'exe_time'}).'</td><td>'.$whodunit{$log{$id}{'exe_uname'}.':'.$log{$id}{'exe_udom'}}.'</td><td>'.$changed{$log{$id}{'uname'}.':'.$log{$id}{'udom'}}.'</td><td>'.$chgaction.'</td><td>'.$title.'</td><td>'.$chgcontext.'</td>'.&Apache::loncommon::end_data_table_row()."\n");
 2871:     }
 2872:     if ($showntablehdr) {
 2873:         $r->print(&Apache::loncommon::end_data_table().'<br />');
 2874:         if (($curr{'page'} > 1) || ($more_records)) {
 2875:             $r->print('<p>');
 2876:             if ($curr{'page'} > 1) {
 2877:                 $r->print('<input type="button" onclick="javascript:chgPage('."'previous'".');" value="'.
 2878:                           &mt('Previous [_1] changes',$curr{'show'}).'" />');
 2879:             }
 2880:             if ($more_records) {
 2881:                 $r->print('<input type="button" onclick="javascript:chgPage('."'next'".');" value="'.
 2882:                           &mt('Next [_1] changes',$curr{'show'}).'" />');
 2883:             }
 2884:             $r->print('</p>');
 2885:             $r->print(<<"ENDSCRIPT");
 2886: <script type="text/javascript">
 2887: function chgPage(caller) {
 2888:     if (caller == 'previous') {
 2889:         document.$formname.page.value --;
 2890:     }
 2891:     if (caller == 'next') {
 2892:         document.$formname.page.value ++;
 2893:     }
 2894:     document.$formname.submit();
 2895:     return;
 2896: }
 2897: </script>
 2898: ENDSCRIPT
 2899:         }
 2900:     } else {
 2901:         $r->print(&mt('There are no records to display.'));
 2902:     }
 2903:     $r->print('<input type="hidden" name="page" value="'.$curr{'page'}.'" />'.
 2904:               '<input type="hidden" name="slotname" value="'.$env{'form.slotname'}.'" />'.
 2905:               '<input type="hidden" name="command" value="slotlog" /></form>'.
 2906:               '<p><a href="/adm/slotrequest?command=showslots">'.
 2907:               &mt('Return to slot list').'</a></p>');
 2908:     return;
 2909: }
 2910: 
 2911: sub get_resource_title {
 2912:     my ($symb,$titles,$maptitles) = @_;
 2913:     my $title;
 2914:     if ((ref($titles) eq 'HASH') && (ref($maptitles) eq 'HASH')) { 
 2915:         if (defined($titles->{$symb})) {
 2916:             $title = $titles->{$symb};
 2917:         } else {
 2918:             $title = &Apache::lonnet::gettitle($symb);
 2919:             my $maptitle;
 2920:             my ($mapurl) = &Apache::lonnet::decode_symb($symb);
 2921:             if (defined($maptitles->{$mapurl})) {
 2922:                 $maptitle = $maptitles->{$mapurl};
 2923:             } else {
 2924:                 if ($mapurl eq $env{'course.'.$env{'request.course.id'}.'.url'}) {
 2925:                     $maptitle=&mt('Main Content');
 2926:                 } else {
 2927:                     $maptitle=&Apache::lonnet::gettitle($mapurl);
 2928:                 }
 2929:                 $maptitles->{$mapurl} = $maptitle;
 2930:             }
 2931:             if ($maptitle ne '') {
 2932:                 $title .= ' '.&mt('(in [_1])',$maptitle);
 2933:             }
 2934:             $titles->{$symb} = $title;
 2935:         }
 2936:     } else {
 2937:         $title = $symb;
 2938:     }
 2939:     return $title;
 2940: }
 2941: 
 2942: sub reservationlog_contexts {
 2943:     my ($crstype) = @_;
 2944:     my %lt = &Apache::lonlocal::texthash (
 2945:                                              any        => 'Any',
 2946:                                              user       => 'By student',
 2947:                                              manage     => 'Via Slot Manager',
 2948:                                              parameter  => 'Via Parameter Manager',
 2949:                                              reserve    => 'Made reservation',
 2950:                                              release    => 'Dropped reservation',
 2951:                                              usermanage => 'By student', 
 2952:                                          );
 2953:     if ($crstype eq 'Community') {
 2954:         $lt{'user'} = &mt('By member');
 2955:         $lt{'usermanage'} = $lt{'user'};
 2956:     }
 2957:     return %lt;
 2958: }
 2959: 
 2960: sub display_filter {
 2961:     my ($formname,$cdom,$cnum,$curr,$version,$allsymbs) = @_;
 2962:     my $nolink = 1;
 2963:     my (%titles,%maptitles);
 2964:     my $output = '<br /><table><tr><th class="LC_log_filter">'.
 2965:                  '<span class="LC_nobreak"><label for="show">'.&mt('Changes/page:').'</label></span></th>'.
 2966:                  '<th class="LC_log_filter">'.&mt('Window during which changes occurred:').'</th>';
 2967:     if (ref($allsymbs) eq 'ARRAY') {
 2968:         $output.= '<th class="LC_log_filter"><label for="resource">'.&mt('Resource').'</label></th>'.
 2969:                   '<th class="LC_log_filter"><label for="chgcontext">'.&mt('Context').'</label></th>';
 2970:     } else {
 2971:         $output.= '<th class="LC_log_filter"><label for="action">'.&mt('Action').'</label></th>';
 2972:     }
 2973:     $output .= '</tr><tr><td class="LC_log_filter">'.
 2974:                &Apache::lonmeta::selectbox('show',$curr->{'show'},'','show',undef,
 2975:                                            (&mt('all'),5,10,20,50,100,1000,10000)).
 2976:                '</td>';
 2977:     my $startform =
 2978:         &Apache::lonhtmlcommon::date_setter($formname,'log_start_date',
 2979:                                             $curr->{'log_start_date'},undef,
 2980:                                             undef,undef,undef,undef,undef,undef,$nolink);
 2981:     my $endform =
 2982:         &Apache::lonhtmlcommon::date_setter($formname,'log_end_date',
 2983:                                             $curr->{'log_end_date'},undef,
 2984:                                             undef,undef,undef,undef,undef,undef,$nolink);
 2985:     my $crstype = &Apache::loncommon::course_type();
 2986:     my %lt = &reservationlog_contexts($crstype);
 2987:     $output .= '<td class="LC_log_filter"><table><tr><th>'.&mt('After:').'</th>'.
 2988:                '<td>'.$startform.'</td></tr>'.
 2989:                '<tr><th>'.&mt('Before:').'</th>'.
 2990:                '<td>'.$endform.'</td></tr></table>'.
 2991:                '</td>';
 2992:     if (ref($allsymbs) eq 'ARRAY') {
 2993:         $output .= '<td class="LC_log_filter"><select name="resource" id="resource"><option value="any"';
 2994:         if ($curr->{'resource'} eq 'any') {
 2995:             $output .= ' selected="selected"';
 2996:         }
 2997:         $output .=  '>'.&mt('Any').'</option>'."\n";
 2998:         foreach my $symb (@{$allsymbs}) {
 2999:             my $title = &get_resource_title($symb,\%titles,\%maptitles);
 3000:             my $selstr = '';
 3001:             if ($curr->{'resource'} eq $symb) {
 3002:                 $selstr = ' selected="selected"';
 3003:             }
 3004:             $output .= '  <option value="'.$symb.'"'.$selstr.'>'.$title.'</option>';
 3005:         }
 3006:         $output .= '</select></td>'.
 3007:                    '<td class="LC_log_filter"><select name="chgcontext" id="chgcontext">';
 3008:         foreach my $chgtype ('any','user','manage','parameter') {
 3009:             my $selstr = '';
 3010:             if ($curr->{'chgcontext'} eq $chgtype) {
 3011:                 $output .= $selstr = ' selected="selected"';
 3012:             }
 3013:             $output .= '<option value="'.$chgtype.'"'.$selstr.'>'.$lt{$chgtype}.'</option>'."\n";
 3014:         }
 3015:         $output .= '</select></td>';
 3016:     } else {
 3017:         $output .= '<td class="LC_log_filter"><select name="action" id="action"><option value="any"';
 3018:         if ($curr->{'action'} eq 'any') {
 3019:             $output .= ' selected="selected"';
 3020:         }
 3021:         $output .=  '>'.&mt('Any').'</option>'."\n";
 3022:         foreach my $actiontype ('reserve','release') {
 3023:             my $selstr = '';
 3024:             if ($curr->{'action'} eq $actiontype) {
 3025:                 $output .= $selstr = ' selected="selected"';
 3026:             }
 3027:             $output .= '<option value="'.$actiontype.'"'.$selstr.'>'.$lt{$actiontype}.'</option>'."\n";
 3028:         }
 3029:         $output .= '</select></td>';
 3030:     }
 3031:     $output .= '</tr></table>'.
 3032:                '<p><input type="submit" value="'.
 3033:                &mt('Update Display').'" /></p>'.
 3034:                '<p class="LC_info">'.
 3035:                &mt('Only changes made from servers running LON-CAPA [_1] or later are displayed.'
 3036:                   ,'2.9.0');
 3037:     if ($version) {
 3038:         $output .= ' '.&mt('This LON-CAPA server is version [_1]',$version);
 3039:     }
 3040:     $output .= '</p><hr /><br />';
 3041:     return $output;
 3042: }
 3043: 
 3044: sub slot_change_messaging {
 3045:     my ($setting,$subject,$msg,$action) = @_;
 3046:     my $user = $env{'user.name'};
 3047:     my $domain = $env{'user.domain'};
 3048:     my ($message_status,$comment_status);
 3049:     if ($setting eq 'only_student'
 3050:         || $setting eq 'student_and_user_notes_screen') {
 3051:         $message_status =
 3052:             &Apache::lonmsg::user_normal_msg($user,$domain,$subject,$msg);
 3053:         $message_status = '<li>'.&mt('Sent to you: [_1]',
 3054:                                     $message_status).' </li>';
 3055:     }
 3056:     if ($setting eq 'student_and_user_notes_screen') {
 3057:         $comment_status =
 3058:             &Apache::lonmsg::store_instructor_comment($subject.'<br />'.
 3059:                                                       $msg,$user,$domain);
 3060:         $comment_status = '<li>'.&mt('Entry added to course record (viewable by instructor): [_1]',
 3061:                                     $comment_status).'</li>';
 3062:     }
 3063:     if ($message_status || $comment_status) {
 3064:         my $msgtitle;
 3065:         if ($action eq 'reserve') {
 3066:             $msgtitle = &mt('Status of messages about saved reservation');
 3067:         } elsif ($action eq 'release') {
 3068:             $msgtitle = &mt('Status of messages about dropped reservation');
 3069:         } elsif ($action eq 'nochange') {
 3070:             $msgtitle = &mt('Status of messages about unchanged existing reservation');
 3071:         }
 3072:         return '<span class="LC_info">'.$msgtitle.'</span>'
 3073:                .'<ul>'
 3074:                .$message_status
 3075:                .$comment_status
 3076:                .'</ul><hr />';
 3077:     }
 3078: }
 3079: 
 3080: sub upload_start {
 3081:     my ($r)=@_;
 3082:     $r->print(
 3083:         &Apache::grades::checkforfile_js()
 3084:        .'<h2 class="LC_heading_2">'.&mt('Upload a file containing the slot definitions').'</h2>'
 3085:        .'<form method="post" enctype="multipart/form-data"'
 3086:        .' action="/adm/slotrequest" name="slotupload">'
 3087:        .'<input type="hidden" name="command" value="csvuploadmap" />'
 3088:        .&Apache::lonhtmlcommon::start_pick_box()
 3089:        .&Apache::lonhtmlcommon::row_title('<label for="upfile">'.&mt('File').'</label>')
 3090:        .&Apache::loncommon::upfile_select_html()
 3091:        .&Apache::lonhtmlcommon::row_closure()
 3092:        .&Apache::lonhtmlcommon::row_title(
 3093:             '<label for="noFirstLine">'
 3094:            .&mt('Ignore First Line')
 3095:            .'</label>')
 3096:        .'<input type="checkbox" name="noFirstLine" id="noFirstLine" />'
 3097:        .&Apache::lonhtmlcommon::row_closure(1)
 3098:        .&Apache::lonhtmlcommon::end_pick_box()
 3099:        .'<p>'
 3100:        .'<input type="button" onclick="javascript:checkUpload(this.form);"'
 3101:        .' value="'.&mt('Next').'" />'
 3102:        .'</p>'
 3103:       .'</form>'
 3104:     );
 3105: }
 3106: 
 3107: sub csvuploadmap_header {
 3108:     my ($r,$datatoken,$distotal)= @_;
 3109:     my $javascript;
 3110:     if ($env{'form.upfile_associate'} eq 'reverse') {
 3111: 	$javascript=&csvupload_javascript_reverse_associate();
 3112:     } else {
 3113: 	$javascript=&csvupload_javascript_forward_associate();
 3114:     }
 3115: 
 3116:     my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
 3117:     my $ignore=&mt('Ignore First Line');
 3118:     my $buttontext = &mt('Reverse Association');
 3119: 
 3120:     $r->print(
 3121:         '<form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">'
 3122:        .'<h2 class="LC_heading_2">'.&mt('Identify fields in uploaded list').'</h2>'
 3123:        .'<div class="LC_columnSection">'
 3124:        .&Apache::loncommon::help_open_topic(
 3125:             'Slot About',&mt('Help on slots'))
 3126:        .' '.&Apache::loncommon::help_open_topic(
 3127:             'Slot SelectingField',&mt('Help on selecting Fields'))
 3128:        ."</div>\n"
 3129:        .'<p class="LC_info">'
 3130:        .&mt('Total number of records found in file: [_1]','<b>'.$distotal.'</b>')
 3131:        ."</p>\n"
 3132:     );
 3133:     if ($distotal == 0) {
 3134:         $r->print('<p class="LC_warning">'.&mt('None found').'</p>');
 3135:     }
 3136:     $r->print(
 3137:         '<p>'
 3138:        .&mt('Enter as many fields as you can.').'<br />'
 3139:        .&mt('The system will inform you and bring you back to this page,[_1]if the data selected is insufficient to create the slots.','<br />')
 3140:        .'</p>'
 3141:     );
 3142:     $r->print(
 3143:         '<div class="LC_left_float">'
 3144:        .'<fieldset><legend>'.&mt('Functions').'</legend>'
 3145:        .'<label><input type="checkbox" name="noFirstLine"'.$checked.' />'.$ignore.'</label>'
 3146:        .' <input type="button" value="'.$buttontext
 3147:            .'" onclick="javascript:this.form.associate.value=\'Reverse Association\';submit(this.form);" />'
 3148:        .'</fieldset></div><br clear="all" />'
 3149:     );
 3150: 
 3151:     $r->print(<<ENDPICK);
 3152: <input type="hidden" name="associate"  value="" />
 3153: <input type="hidden" name="datatoken"  value="$datatoken" />
 3154: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
 3155: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
 3156: <input type="hidden" name="upfile_associate" 
 3157:                                        value="$env{'form.upfile_associate'}" />
 3158: <input type="hidden" name="command"    value="csvuploadassign" />
 3159: <script type="text/javascript" language="Javascript">
 3160: // <![CDATA[
 3161: $javascript
 3162: // ]]>
 3163: </script>
 3164: ENDPICK
 3165:     return '';
 3166: 
 3167: }
 3168: 
 3169: sub csvuploadmap_footer {
 3170:     my ($request,$i,$keyfields) =@_;
 3171:     my $buttontext = &mt('Create Slots');
 3172:     $request->print(<<ENDPICK);
 3173: <input type="hidden" name="nfields" value="$i" />
 3174: <input type="hidden" name="keyfields" value="$keyfields" />
 3175: <input type="button" onclick="javascript:verify(this.form)" value="$buttontext" /><br />
 3176: </form>
 3177: ENDPICK
 3178: }
 3179: 
 3180: sub csvupload_javascript_reverse_associate {
 3181:     my $error1=&mt('You need to specify the name, start time, end time and a type.');
 3182:     return(<<ENDPICK);
 3183:   function verify(vf) {
 3184:     var foundstart=0;
 3185:     var foundend=0;
 3186:     var foundname=0;
 3187:     var foundtype=0;
 3188:     for (i=0;i<=vf.nfields.value;i++) {
 3189:       tw=eval('vf.f'+i+'.selectedIndex');
 3190:       if (i==0 && tw!=0) { foundname=1; }
 3191:       if (i==1 && tw!=0) { foundtype=1; }
 3192:       if (i==2 && tw!=0) { foundstat=1; }
 3193:       if (i==3 && tw!=0) { foundend=1; }
 3194:     }
 3195:     if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
 3196: 	alert('$error1');
 3197: 	return;
 3198:     }
 3199:     vf.submit();
 3200:   }
 3201:   function flip(vf,tf) {
 3202:   }
 3203: ENDPICK
 3204: }
 3205: 
 3206: sub csvupload_javascript_forward_associate {
 3207:     my $error1=&mt('You need to specify the name, start time, end time and a type.');
 3208:   return(<<ENDPICK);
 3209:   function verify(vf) {
 3210:     var foundstart=0;
 3211:     var foundend=0;
 3212:     var foundname=0;
 3213:     var foundtype=0;
 3214:     for (i=0;i<=vf.nfields.value;i++) {
 3215:       tw=eval('vf.f'+i+'.selectedIndex');
 3216:       if (tw==1) { foundname=1; }
 3217:       if (tw==2) { foundtype=1; }
 3218:       if (tw==3) { foundstat=1; }
 3219:       if (tw==4) { foundend=1; }
 3220:     }
 3221:     if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
 3222: 	alert('$error1');
 3223: 	return;
 3224:     }
 3225:     vf.submit();
 3226:   }
 3227:   function flip(vf,tf) {
 3228:   }
 3229: ENDPICK
 3230: }
 3231: 
 3232: sub csv_upload_map {
 3233:     my ($r)= @_;
 3234: 
 3235:     my $datatoken;
 3236:     if (!$env{'form.datatoken'}) {
 3237: 	$datatoken=&Apache::loncommon::upfile_store($r);
 3238:     } else {
 3239:         $datatoken=&Apache::loncommon::valid_datatoken($env{'form.datatoken'});
 3240:         if ($datatoken ne '') {
 3241:             &Apache::loncommon::load_tmp_file($r,$datatoken);
 3242:         }
 3243:     }
 3244:     my @records=&Apache::loncommon::upfile_record_sep();
 3245:     if ($env{'form.noFirstLine'}) { shift(@records); }
 3246:     &csvuploadmap_header($r,$datatoken,$#records+1);
 3247:     my ($i,$keyfields);
 3248:     if (@records) {
 3249: 	my @fields=&csvupload_fields();
 3250: 
 3251: 	if ($env{'form.upfile_associate'} eq 'reverse') {	
 3252: 	    &Apache::loncommon::csv_print_samples($r,\@records);
 3253: 	    $i=&Apache::loncommon::csv_print_select_table($r,\@records,
 3254: 							  \@fields);
 3255: 	    foreach (@fields) { $keyfields.=$_->[0].','; }
 3256: 	    chop($keyfields);
 3257: 	} else {
 3258: 	    unshift(@fields,['none','']);
 3259: 	    $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
 3260: 							    \@fields);
 3261: 	    my %sone=&Apache::loncommon::record_sep($records[0]);
 3262: 	    $keyfields=join(',',sort(keys(%sone)));
 3263: 	}
 3264:     }
 3265:     &csvuploadmap_footer($r,$i,$keyfields);
 3266: 
 3267:     return '';
 3268: }
 3269: 
 3270: sub csvupload_fields {
 3271:     return (['name','Slot name'],
 3272: 	    ['type','Type of slot'],
 3273: 	    ['starttime','Start Time of slot'],
 3274: 	    ['endtime','End Time of slot'],
 3275: 	    ['startreserve','Reservation Start Time'],
 3276:             ['endreserve','Reservation End Time'],
 3277:             ['reservationmsg','Message when reservation changed'],
 3278: 	    ['ip','IP or DNS restriction'],
 3279:             ['iptied','Unique IP each student'],
 3280: 	    ['proctor','List of proctor ids'],
 3281: 	    ['description','Slot Description'],
 3282: 	    ['maxspace','Maximum number of reservations'],
 3283: 	    ['symb','Resource(s)/Map(s) Restriction'],
 3284: 	    ['uniqueperiod','Date range of slot exclusion'],
 3285: 	    ['secret','Secret word proctor uses to validate'],
 3286: 	    ['allowedsections','Sections slot is restricted to'],
 3287: 	    ['allowedusers','Users slot is restricted to'],
 3288: 	    );
 3289: }
 3290: 
 3291: sub csv_upload_assign {
 3292:     my ($r,$mgr)= @_;
 3293:     my $datatoken = &Apache::loncommon::valid_datatoken($env{'form.datatoken'});
 3294:     if ($datatoken ne '') {
 3295:         &Apache::loncommon::load_tmp_file($r,$datatoken);
 3296:     }
 3297:     my @slotdata = &Apache::loncommon::upfile_record_sep();
 3298:     if ($env{'form.noFirstLine'}) { shift(@slotdata); }
 3299:     my %fields=&Apache::grades::get_fields();
 3300:     $r->print('<h3>'.&mt('Creating Slots').'</h3>');
 3301:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 3302:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 3303:     my $countdone=0;
 3304:     my @errors;
 3305:     foreach my $slot (@slotdata) {
 3306: 	my %slot;
 3307: 	my %entries=&Apache::loncommon::record_sep($slot);
 3308: 	my $domain;
 3309: 	my $name=$entries{$fields{'name'}};
 3310: 	if ($name=~/^\s*$/) {
 3311: 	    push(@errors,"Did not create slot with no name");
 3312: 	    next;
 3313: 	}
 3314: 	if ($name=~/\s/) { 
 3315: 	    push(@errors,"$name not created -- Name must not contain spaces");
 3316: 	    next;
 3317: 	}
 3318: 	if ($name=~/\W/) { 
 3319: 	    push(@errors,"$name not created -- Name must contain only letters, numbers and _");
 3320: 	    next;
 3321: 	}
 3322: 	if ($entries{$fields{'type'}}) {
 3323: 	    $slot{'type'}=$entries{$fields{'type'}};
 3324: 	} else {
 3325: 	    $slot{'type'}='preassigned';
 3326: 	}
 3327: 	if ($slot{'type'} ne 'preassigned' &&
 3328: 	    $slot{'type'} ne 'schedulable_student') {
 3329: 	    push(@errors,"$name not created -- invalid type ($slot{'type'}) must be either preassigned or schedulable_student");
 3330: 	    next;
 3331: 	}
 3332: 	if ($entries{$fields{'starttime'}}) {
 3333: 	    $slot{'starttime'}=&UnixDate($entries{$fields{'starttime'}},"%s");
 3334: 	}
 3335: 	if ($entries{$fields{'endtime'}}) {
 3336: 	    $slot{'endtime'}=&UnixDate($entries{$fields{'endtime'}},"%s");
 3337: 	}
 3338: 
 3339: 	# start/endtime must be defined and greater than zero
 3340: 	if (!$slot{'starttime'}) {
 3341: 	    push(@errors,"$name not created -- Invalid start time");
 3342: 	    next;
 3343: 	}
 3344: 	if (!$slot{'endtime'}) {
 3345: 	    push(@errors,"$name not created -- Invalid end time");
 3346: 	    next;
 3347: 	}
 3348: 	if ($slot{'starttime'} > $slot{'endtime'}) {
 3349: 	    push(@errors,"$name not created -- Slot starts after it ends");
 3350: 	    next;
 3351: 	}
 3352: 
 3353: 	if ($entries{$fields{'startreserve'}}) {
 3354:             my $date = &UnixDate($entries{$fields{'startreserve'}},"%s");
 3355:             if ($date eq '') {
 3356:                 push(@errors,"$name -- No reservation start time set for slot -- value provided had invalid format");
 3357:             } else {
 3358:                 $slot{'startreserve'} = $date;
 3359:             }
 3360: 	}
 3361: 	if (defined($slot{'startreserve'})
 3362: 	    && $slot{'startreserve'} > $slot{'starttime'}) {
 3363: 	    push(@errors,"$name not created -- Slot's reservation start time is after the slot's start time.");
 3364: 	    next;
 3365: 	}
 3366: 
 3367:         if ($entries{$fields{'endreserve'}}) {
 3368:             my $date = &UnixDate($entries{$fields{'endreserve'}},"%s");
 3369:             if ($date eq '') {
 3370:                 push(@errors,"$name -- No reservation end time set for slot -- value provided had invalid format");
 3371:             } else {
 3372:                 $slot{'endreserve'} = $date;
 3373:             }
 3374:         }
 3375:         if (defined($slot{'endreserve'})
 3376:             && $slot{'endreserve'} > $slot{'starttime'}) {
 3377:             push(@errors,"$name not created -- Slot's reservation end time is after the slot's start time.");
 3378:             next;
 3379:         }
 3380: 
 3381:         if ($slot{'type'} eq 'schedulable_student') {
 3382:             if ($entries{$fields{'reservationmsg'}}) {
 3383:                  if (($entries{$fields{'reservationmsg'}} eq 'only_student') ||
 3384:                      ($entries{$fields{'reservationmsg'}} eq 'student_and_user_notes_screen')) {
 3385:                       $slot{'reservationmsg'}=$entries{$fields{'reservationmsg'}};
 3386:                  } else {
 3387:                       unless (($entries{$fields{'reservationmsg'}} eq 'none') ||
 3388:                               ($entries{$fields{'reservationmsg'}} eq '')) {
 3389:                           push(@errors,"$name -- Slot's reservationmsg setting ignored - not one of: 'only_student', 'student_and_user_notes_screen', 'none' or ''");
 3390:                       }
 3391:                  }
 3392:             }
 3393:         }
 3394: 
 3395: 	foreach my $key ('ip','proctor','description','maxspace',
 3396: 			 'secret','symb') {
 3397: 	    if ($entries{$fields{$key}}) {
 3398: 		$slot{$key}=$entries{$fields{$key}};
 3399:                 if ($key eq 'maxspace') {
 3400:                     $slot{$key} =~ s/\D+//g;
 3401:                 }
 3402: 	    }
 3403: 	}
 3404:         if ($entries{$fields{'iptied'}} =~ /^\s*(yes|1)\s*$/i) {
 3405:             $slot{'iptied'}='yes'; 
 3406:         } elsif ($entries{$fields{'iptied'}} =~ /^\s*answer\s*$/i) {
 3407:             $slot{'iptied'}='answer';
 3408:         }
 3409:         if ($entries{$fields{'allowedusers'}}) {
 3410:             $entries{$fields{'allowedusers'}} =~ s/^\s+//;
 3411:             $entries{$fields{'allowedusers'}} =~ s/\s+$//;
 3412:             my @allowedusers;
 3413:             foreach my $poss (split(/\s*,\s*/,$entries{$fields{'allowedusers'}})) {
 3414:                 my ($possuname,$possudom) = split(/:/,$poss);
 3415:                 if (($possuname =~ /^$match_username$/) && ($possudom =~ /^$match_domain$/)) {
 3416:                     unless (grep(/^\Q$poss\E$/,@allowedusers)) {
 3417:                         push(@allowedusers,$poss);
 3418:                     }
 3419:                 }
 3420:             }
 3421:             if (@allowedusers > 0) {
 3422:                 $slot{'allowedusers'} = join(',',@allowedusers);
 3423:             }
 3424:         }
 3425:         if ($entries{$fields{'allowedsections'}}) {
 3426:             $entries{$fields{'allowedsections'}} =~ s/^\s+//;
 3427:             $entries{$fields{'allowedsections'}} =~ s/\s+$//;
 3428:             my @allowedsections;
 3429:             foreach my $poss (split(/\s*,\s*/,$entries{$fields{'allowedsections'}})) {
 3430:                 if (($poss !~ /\W/) && ($poss ne 'none')) {
 3431:                     unless (grep(/^\Q$poss\E$/,@allowedsections)) {
 3432:                         push(@allowedsections,$poss);
 3433:                     }
 3434:                 }
 3435:             }
 3436:             if (@allowedsections > 0) {
 3437:                 $slot{'allowedsections'} = join(',',@allowedsections);
 3438:             }
 3439:         }
 3440: 	if ($entries{$fields{'uniqueperiod'}}) {
 3441:             my ($start,$end)= map { &UnixDate($_,"%s"); } split(',',$entries{$fields{'uniqueperiod'}});
 3442:             if (($start ne '') && ($end ne '')) {
 3443:                 $slot{'uniqueperiod'}=[$start,$end];
 3444:             } else {
 3445:                 push(@errors,"$name -- Slot's unique period ignored -- one or both of the comma separated values for start and end had an invalid format");
 3446:             }
 3447: 	}
 3448: 	if (ref($slot{'uniqueperiod'}) eq 'ARRAY' 
 3449: 	    && $slot{'uniqueperiod'}[0] > $slot{'uniqueperiod'}[1]) {
 3450: 	    push(@errors,"$name not created -- Slot's unique period start time is later than the unique period's end time.");
 3451: 	    next;
 3452: 	}
 3453: 
 3454: 	&Apache::lonnet::cput('slots',{$name=>\%slot},$cdom,$cname);
 3455: 	$r->print('.');
 3456: 	$r->rflush();
 3457: 	$countdone++;
 3458:     }
 3459:     if ($countdone) {
 3460:         &Apache::lonnet::devalidate_slots_cache($cname,$cdom); 
 3461:     }
 3462:     $r->print('<p>'.&mt('Created [quant,_1,slot]',$countdone)."\n".'</p>');
 3463:     foreach my $error (@errors) {
 3464: 	$r->print('<p><span class="LC_warning">'.$error.'</span></p>'."\n");
 3465:     }
 3466:     &show_table($r,$mgr);
 3467:     return '';
 3468: }
 3469: 
 3470: sub slot_command_titles {
 3471:     my %titles = (
 3472:                  slotlog            => 'Reservation Logs',
 3473:                  showslots          => 'Manage Slots',
 3474:                  showresv           => 'Reservation History',
 3475:                  manageresv         => 'Manage Reservations',
 3476:                  uploadstart        => 'Upload Slots File',
 3477:                  csvuploadmap       => 'Upload Slots File',
 3478:                  csvuploadassign    => 'Upload Slots File',
 3479:                  delete             => 'Slot Deletion',
 3480:                  release            => 'Reservation Result',
 3481:                  remove_reservation => 'Remove Registration',
 3482:                  get_reservation    => 'Request Reservation',
 3483:               );
 3484:     return %titles;
 3485: }
 3486: 
 3487: sub slot_reservationmsg_options {
 3488:     my %options = &Apache::lonlocal::texthash (
 3489:                         only_student  => 'Sent to student',
 3490:         student_and_user_notes_screen => 'Sent to student and added to user notes',
 3491:                                  none => 'None sent and no record in user notes',
 3492:     );
 3493:     return %options;
 3494: }
 3495: 
 3496: sub get_user_breadcrumbs {
 3497:     my ($symb) = @_;
 3498:     my ($mapurl, $rid, $resurl) = &Apache::lonnet::decode_symb($symb);
 3499:     return [] unless (&Apache::lonnet::symbverify($symb,$resurl));
 3500:     my $coursetitle = $env{'course.'.$env{'request.course.id'}.'.description'};
 3501:     my $maptitle = &Apache::lonnet::gettitle($mapurl);
 3502:     my $restitle = &Apache::lonnet::gettitle($symb);
 3503:     my $crstype = &Apache::loncommon::course_type();
 3504:     my ($ltiscope,$ltiuri);
 3505:     my (@crumbs,@mapcrumbs);
 3506:     if (($env{'request.course.id'}) && ($env{'request.lti.login'})) {
 3507:         ($ltiscope,$ltiuri) =
 3508:             &LONCAPA::ltiutils::lti_provider_scope($env{'request.lti.uri'},
 3509:                        $env{'course.'.$env{'request.course.id'}.'.domain'},
 3510:                        $env{'course.'.$env{'request.course.id'}.'.num'});
 3511:     }
 3512:     if (($resurl ne '/adm/navmaps') && ($mapurl ne '') &&
 3513:         (!(($crstype eq 'Placement') && !$env{'request.role.adv'}))) {
 3514:         unless ($ltiscope eq 'resource') {
 3515:             if (($mapurl ne $env{'course.'.$env{'request.course.id'}.'.url'}) &&
 3516:                 !(($ltiscope eq 'map') && (&Apache::lonnet::clutter($resurl) eq $ltiuri))) {
 3517:                 my $navmap = Apache::lonnavmaps::navmap->new();
 3518:                 if (ref($navmap)) {
 3519:                     @mapcrumbs = $navmap->recursed_crumbs($mapurl,$restitle);
 3520:                 }
 3521:             }
 3522:         }
 3523:     }
 3524:     unless ((($crstype eq 'Placement') && (!$env{'request.role.adv'})) ||
 3525:              ($ltiscope eq 'map') || ($ltiscope eq 'resource')) {
 3526:              @crumbs = ({text  => $crstype.' Contents',
 3527:                          href  => "javascript:gopost('/adm/navmaps','')"});
 3528:     }
 3529:     if ($mapurl ne $env{'course.'.$env{'request.course.id'}.'.url'}) {
 3530:         if (@mapcrumbs) {
 3531:             push(@crumbs,@mapcrumbs);
 3532:         } elsif (!(($crstype eq 'Placement') && (!$env{'request.role.adv'})) &&
 3533:                  ($ltiscope ne 'map') && ($ltiscope ne 'resource')) {
 3534:             push(@crumbs, {text  => '...',
 3535:                            no_mt => 1});
 3536:         }
 3537:     }
 3538:     unless ((($crstype eq 'Placement') && (!$env{'request.role.adv'})) || (@mapcrumbs) ||
 3539:             (!$maptitle) || ($maptitle eq 'default.sequence') ||
 3540:             ($mapurl eq $env{'course.'.$env{'request.course.id'}.'.url'}) ||
 3541:             ($ltiscope eq 'resource')) {
 3542:         push(@crumbs, {text => $maptitle, no_mt => 1,
 3543:                        href => &Apache::lonnet::clutter($mapurl).'?navmap=1'});
 3544:     }
 3545:     if ($restitle && !@mapcrumbs) {
 3546:         push(@crumbs,{text => $restitle, no_mt => 1});
 3547:     }
 3548:     return \@crumbs;
 3549: }
 3550: 
 3551: sub handler {
 3552:     my $r=shift;
 3553: 
 3554:     &Apache::loncommon::content_type($r,'text/html');
 3555:     &Apache::loncommon::no_cache($r);
 3556:     if ($r->header_only()) {
 3557: 	$r->send_http_header();
 3558: 	return OK;
 3559:     }
 3560: 
 3561:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
 3562: 
 3563:     my %crumb_titles = &slot_command_titles();
 3564:     my ($symb,$brcrum,$bread_crumbs_component);
 3565: 
 3566:     my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
 3567:     my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
 3568:     my (%slots,$consumed_uniqueperiods);
 3569:     if ($env{'form.command'} eq 'showslots') {
 3570:         if (($vgr ne 'F') && ($mgr ne 'F')) {
 3571:             $env{'form.command'} = 'manageresv'; 
 3572:         }
 3573:     } elsif ($env{'form.command'} eq 'manageresv') {
 3574:         if (($vgr eq 'F') || ($mgr eq 'F')) {
 3575:             $env{'form.command'} = 'showslots';
 3576:         }
 3577:     }
 3578:     my $title='Requesting Another Worktime';
 3579:     if ($env{'form.command'} eq 'showresv') {
 3580:         $title = 'Reservation History';
 3581:         if ($env{'form.origin'} eq 'aboutme') {
 3582:             $brcrum =[{href=>"/adm/$env{'form.udom'}/$env{'form.uname'}/aboutme",text=>'Personal Information Page'}];
 3583:         } else {
 3584:             $brcrum =[{href=>"/adm/slotrequest?command=manageresv",text=>'Manage Reservations'}];
 3585:         }
 3586:         if (ref($brcrum) eq 'ARRAY') {
 3587:             push(@{$brcrum},{href=>"/adm/slotrequest?command=showresv",text=>$title});
 3588:         }
 3589:     } elsif (($env{'form.requestattempt'}) || ($env{'form.command'} eq 'manageresv')) {
 3590:         if ($env{'form.command'} eq 'manageresv') {
 3591:             $title = 'Manage Reservations';
 3592:             $brcrum =[{href=>"/adm/slotrequest?command=manageresv",text=>$title}];
 3593:         }
 3594:         if ($env{'form.requestattempt'}) {
 3595:             $symb=&unescape($env{'form.symb'});
 3596:             if ($symb =~ m{^/enc/}) {
 3597:                 $symb = &Apache::lonenc::unencrypted($symb);
 3598:             }
 3599:             if ($symb) {
 3600:                 $brcrum = &get_user_breadcrumbs($symb);
 3601:             }
 3602:         }
 3603:         my ($cnum,$cdom)=&get_course();
 3604:         %slots = &Apache::lonnet::get_course_slots($cnum,$cdom);
 3605:         $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
 3606:     } elsif ($vgr eq 'F') {
 3607:         if ($env{'form.command'} =~ /^(slotlog|showslots|uploadstart|csvuploadmap|csvuploadassign|delete|release|remove_registration)$/) {
 3608:             $brcrum =[{href=>"/adm/slotrequest?command=showslots",
 3609:                        text=>$crumb_titles{'showslots'},
 3610:                        help=>'Slot_Use'}];
 3611: 	    $title = 'Managing Slots';
 3612:             $bread_crumbs_component = 'Slots';
 3613:             unless ($env{'form.command'} eq 'showslots') {
 3614:                 if (ref($brcrum) eq 'ARRAY') {
 3615:                     push(@{$brcrum},{href=>"/adm/slotrequest?command=$env{'form.command'}",text=>$crumb_titles{$env{'form.command'}}});
 3616:                 }
 3617:             }
 3618:         }
 3619:     } elsif ($env{'form.command'} eq 'release') {
 3620:         if ($env{'form.context'} eq 'usermanage') {
 3621:             $brcrum =[{href=>"/adm/slotrequest?command=manageresv",
 3622:                        text=>$crumb_titles{'manageresv'}}];
 3623:             $title = 'Manage Reservations';
 3624:             if (ref($brcrum) eq 'ARRAY') {
 3625:                 push(@{$brcrum},{href=>"/adm/slotrequest?command=$env{'form.command'}",text=>$crumb_titles{$env{'form.command'}}});
 3626:             }
 3627:         } elsif ($env{'form.context'} eq 'user') {
 3628:             if ($env{'form.symb'}) {
 3629:                 $symb = &unescape($env{'form.symb'});
 3630:                 if ($symb =~ m{^/enc/}) {
 3631:                     $symb = &Apache::lonenc::unencrypted($symb);
 3632:                 }
 3633:                 $brcrum = &get_user_breadcrumbs($symb);
 3634:             } else {
 3635:                 $brcrum =[];
 3636:             }
 3637:         }
 3638:     } elsif (($env{'form.command'} eq 'get') && ($env{'form.context'} eq 'user')) {
 3639:         if ($env{'form.symb'}) {
 3640:             $symb=&unescape($env{'form.symb'});
 3641:             if ($symb =~ m{^/enc/}) {
 3642:                 $symb = &Apache::lonenc::unencrypted($symb);
 3643:             }
 3644:             $brcrum = &get_user_breadcrumbs($symb);
 3645:         } else {
 3646:             $brcrum =[];
 3647:         }
 3648:     } else {
 3649:         $brcrum =[];
 3650:     }
 3651:     my ($js,$available,$allavailable,$got_slots);
 3652:     $available = [];
 3653:     if ($env{'form.requestattempt'}) {
 3654:         @{$got_slots}=&check_for_reservation($symb,'allslots');
 3655:     }
 3656:     if (($env{'form.requestattempt'}) || ($env{'form.command'} eq 'manageresv')) {
 3657:         $js = &reservation_js(\%slots,$consumed_uniqueperiods,$available,$got_slots,$symb);
 3658:     }
 3659:     &start_page($r,$title,$brcrum,$bread_crumbs_component,$js,$mgr);
 3660:     $r->print('<div class="LC_landmark" role="main">'."\n");
 3661: 
 3662:     if ($env{'form.command'} eq 'manageresv') {
 3663:         $allavailable = $available;
 3664:         undef($available);
 3665:         undef($got_slots);
 3666:         my $crstype = &Apache::loncommon::course_type();
 3667:         &manage_reservations($r,$crstype,\%slots,$consumed_uniqueperiods,$allavailable);
 3668:     } elsif ($env{'form.command'} eq 'showresv') {
 3669:         &show_reservations($r,$env{'form.uname'},$env{'form.udom'});
 3670:     } elsif ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
 3671: 	&show_table($r,$mgr);
 3672:     } elsif ($env{'form.command'} eq 'remove_registration' && $mgr eq 'F') {
 3673: 	&remove_registration($r);
 3674:     } elsif ($env{'form.command'} eq 'release' && $mgr eq 'F') {
 3675: 	if ($env{'form.entry'} eq 'remove all') {
 3676: 	    &release_all_slot($r,$mgr);
 3677: 	} else {
 3678: 	    &release_slot($r,undef,undef,undef,$mgr);
 3679: 	}
 3680:     } elsif ($env{'form.command'} eq 'delete' && $mgr eq 'F') {
 3681: 	&delete_slot($r);
 3682:     } elsif ($env{'form.command'} eq 'uploadstart' && $mgr eq 'F') {
 3683: 	&upload_start($r);
 3684:     } elsif ($env{'form.command'} eq 'csvuploadmap' && $mgr eq 'F') {
 3685: 	&csv_upload_map($r);
 3686:     } elsif ($env{'form.command'} eq 'csvuploadassign' && $mgr eq 'F') {
 3687: 	if ($env{'form.associate'} ne 'Reverse Association') {
 3688: 	    &csv_upload_assign($r,$mgr);
 3689: 	} else {
 3690: 	    if ( $env{'form.upfile_associate'} ne 'reverse' ) {
 3691: 		$env{'form.upfile_associate'} = 'reverse';
 3692: 	    } else {
 3693: 		$env{'form.upfile_associate'} = 'forward';
 3694: 	    }
 3695: 	    &csv_upload_map($r);
 3696: 	}
 3697:     } elsif (($env{'form.command'} eq 'slotlog') && ($vgr eq 'F')) {
 3698:         &show_reservations_log($r);
 3699:     } else {
 3700: 	$symb = &unescape($env{'form.symb'});
 3701: 	if ($symb =~ m{^/enc/}) {
 3702: 	    $symb = &Apache::lonenc::unencrypted($symb);
 3703: 	}
 3704: 	if (!defined($symb)) {
 3705: 	    &fail($r,'not_valid');
 3706: 	    return OK;
 3707: 	}
 3708: 	my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb);
 3709: 	my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
 3710: 	if ($useslots ne 'resource' 
 3711: 	    && $useslots ne 'map' 
 3712: 	    && $useslots ne 'map_map') {
 3713: 	    &fail($r,'not_available');
 3714: 	    return OK;
 3715: 	}
 3716: 	$env{'request.symb'}=$symb;
 3717: 	my $type = ($res =~ /\.task$/) ? 'Task'
 3718: 	                               : 'problem';
 3719: 	my ($status) = &Apache::lonhomework::check_slot_access('0',$type);
 3720: 	if ($status eq 'CAN_ANSWER' ||
 3721: 	    $status eq 'NEEDS_CHECKIN' ||
 3722: 	    $status eq 'WAITING_FOR_GRADE' ||
 3723:             $status eq 'NEED_DIFFERENT_IP') {
 3724: 	    &fail($r,'not_allowed');
 3725: 	    return OK;
 3726: 	}
 3727: 	if ($env{'form.requestattempt'}) {
 3728:             $r->print('<div class="LC_left_float">'.
 3729: 	              &show_choices($symb,undef,0,undef,\%slots,$consumed_uniqueperiods,$available,$got_slots).
 3730:                       '</div><div style="padding:0;clear:both;margin:0;border:0"></div>');
 3731: 	} elsif ($env{'form.command'} eq 'release') {
 3732: 	    &release_slot($r,$symb);
 3733: 	} elsif ($env{'form.command'} eq 'get') {
 3734: 	    &get_slot($r,$symb);
 3735: 	} elsif ($env{'form.command'} eq 'change') {
 3736:             if ($env{'form.nochange'}) {
 3737:                 my $slot_name = $env{'form.releaseslot'};
 3738:                 my @slots = &check_for_reservation($symb,'allslots');
 3739:                 my $msg;
 3740:                 if (($slot_name ne '') && (grep(/^\Q$slot_name\E/,@slots))) { 
 3741:                      my %slot=&Apache::lonnet::get_slot($env{'form.releaseslot'});
 3742:                      my $description=&get_description($slot_name,\%slot);
 3743:                      $msg = '<span style="font-weight: bold;">'.
 3744:                             &mt('Unchanged reservation: [_1]',$description).'</span><br /><br />';
 3745:                      my $person = 
 3746:                          &Apache::loncommon::plainname($env{'user.name'},$env{'user.domain'});
 3747:                      my $subject = &mt('Reservation unchanged: [_1]',$description);
 3748:                      my $msgbody = &mt('No change to existing registration by [_1] for [_2].',$person,$description);
 3749:                      $msg .= &slot_change_messaging($slot{'reservationmsg'},$subject,$msgbody,'nochange');
 3750:                 } else {
 3751:                     $msg = '<span class="LC_warning">'.&mt('Reservation no longer reported as available.').'</span>';
 3752:                 }
 3753:                 $r->print($msg);
 3754:                 &return_link($r);
 3755: 	    } elsif (&get_slot($r,$symb,$env{'form.releaseslot'},1)) {
 3756: 		&release_slot($r,$symb,$env{'form.releaseslot'});
 3757: 	    }
 3758: 	} else {
 3759: 	    $r->print('<p>'.&mt('Unknown command: [_1]',$env{'form.command'}).'</p>');
 3760: 	}
 3761:     }
 3762:     &end_page($r);
 3763:     return OK;
 3764: }
 3765: 
 3766: 1;
 3767: __END__

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>