1: # The LearningOnline Network with CAPA
2: # Handler for requesting to have slots added to a students record
3: #
4: # $Id: slotrequest.pm,v 1.63 2006/05/30 12:46:09 www 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;
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)=@_;
60: $r->print(&Apache::loncommon::start_page($title));
61: }
62:
63: sub end_page {
64: my ($r)=@_;
65: $r->print(&Apache::loncommon::end_page());
66: }
67:
68: =pod
69:
70: slot_reservations db
71: - keys are
72: - slotname\0id -> value is an hashref of
73: name -> user@domain of holder
74: timestamp -> timestamp of reservation
75: symb -> symb of resource that it is reserved for
76:
77: =cut
78:
79: sub get_course {
80: (undef,my $courseid)=&Apache::lonxml::whichuser();
81: my $cdom=$env{'course.'.$courseid.'.domain'};
82: my $cnum=$env{'course.'.$courseid.'.num'};
83: return ($cnum,$cdom);
84: }
85:
86: sub get_reservation_ids {
87: my ($slot_name)=@_;
88:
89: my ($cnum,$cdom)=&get_course();
90:
91: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
92: "^$slot_name\0");
93: if (&network_error(%consumed)) {
94: return 'error: Unable to determine current status';
95: }
96: my ($tmp)=%consumed;
97: if ($tmp=~/^error: 2 / ) {
98: return 0;
99: }
100: return keys(%consumed);
101: }
102:
103: sub space_available {
104: my ($slot_name,$slot)=@_;
105: my $max=$slot->{'maxspace'};
106:
107: if (!defined($max)) { return 1; }
108:
109: my $consumed=scalar(&get_reservation_ids($slot_name));
110: if ($consumed < $max) {
111: return 1
112: }
113: return 0;
114: }
115:
116: sub check_for_reservation {
117: my ($symb,$mode)=@_;
118: my $student = &Apache::lonnet::EXT("resource.0.availablestudent", $symb,
119: $env{'user.domain'}, $env{'user.name'});
120:
121: my $course = &Apache::lonnet::EXT("resource.0.available", $symb,
122: $env{'user.domain'}, $env{'user.name'});
123: my @slots = (split(/:/,$student), split(/:/, $course));
124:
125: &Apache::lonxml::debug(" slot list is ".join(':',@slots));
126:
127: my ($cnum,$cdom)=&get_course();
128: my %slots=&Apache::lonnet::get('slots', [@slots], $cdom, $cnum);
129:
130: if (&network_error($student) || &network_error($course) ||
131: &network_error(%slots)) {
132: return 'error: Unable to determine current status';
133: }
134: my @got;
135: foreach my $slot_name (sort {
136: if (ref($slots{$a}) && ref($slots{$b})) {
137: return $slots{$a}{'starttime'} <=> $slots{$b}{'starttime'}
138: }
139: if (ref($slots{$a})) { return -1;}
140: if (ref($slots{$b})) { return 1;}
141: return 0;
142: } @slots) {
143: next if (!defined($slots{$slot_name}) ||
144: !ref($slots{$slot_name}));
145: &Apache::lonxml::debug(time." $slot_name ".
146: $slots{$slot_name}->{'starttime'}." -- ".
147: $slots{$slot_name}->{'startreserve'});
148: if ($slots{$slot_name}->{'endtime'} > time &&
149: $slots{$slot_name}->{'startreserve'} < time) {
150: # between start of reservation times and end of slot
151: if ($mode eq 'allslots') {
152: push(@got,$slot_name);
153: } else {
154: return($slot_name, $slots{$slot_name});
155: }
156: }
157: }
158: if ($mode eq 'allslots' && @got) {
159: return @got;
160: }
161: return (undef,undef);
162: }
163:
164: sub get_consumed_uniqueperiods {
165: my ($slots) = @_;
166: my $navmap=Apache::lonnavmaps::navmap->new;
167: my @problems = $navmap->retrieveResources(undef,
168: sub { $_[0]->is_problem() },1,0);
169: my %used_slots;
170: foreach my $problem (@problems) {
171: my $symb = $problem->symb();
172: my $student = &Apache::lonnet::EXT("resource.0.availablestudent",
173: $symb, $env{'user.domain'},
174: $env{'user.name'});
175: my $course = &Apache::lonnet::EXT("resource.0.available",
176: $symb, $env{'user.domain'},
177: $env{'user.name'});
178: if (&network_error($student) || &network_error($course)) {
179: return 'error: Unable to determine current status';
180: }
181: foreach my $slot (split(/:/,$student), split(/:/, $course)) {
182: $used_slots{$slot}=1;
183: }
184: }
185:
186: if (!ref($slots)) {
187: my ($cnum,$cdom)=&get_course();
188: my %slots=&Apache::lonnet::get('slots', [keys(%used_slots)], $cdom, $cnum);
189: if (&network_error(%slots)) {
190: return 'error: Unable to determine current status';
191: }
192: $slots = \%slots;
193: }
194:
195: my %consumed_uniqueperiods;
196: foreach my $slot_name (keys(%used_slots)) {
197: next if (!defined($slots->{$slot_name}) ||
198: !ref($slots->{$slot_name}));
199:
200: next if (!defined($slots->{$slot_name}{'uniqueperiod'}) ||
201: !ref($slots->{$slot_name}{'uniqueperiod'}));
202: $consumed_uniqueperiods{$slot_name} =
203: $slots->{$slot_name}{'uniqueperiod'};
204: }
205: return \%consumed_uniqueperiods;
206: }
207:
208: sub check_for_conflict {
209: my ($symb,$new_slot_name,$new_slot,$slots,$consumed_uniqueperiods)=@_;
210:
211: if (!defined($new_slot->{'uniqueperiod'})) { return undef; }
212:
213: if (!ref($consumed_uniqueperiods)) {
214: $consumed_uniqueperiods = &get_consumed_uniqueperiods($slots);
215: if (&network_error(%$consumed_uniqueperiods)) {
216: return 'error: Unable to determine current status';
217: }
218: }
219:
220: my ($new_uniq_start,$new_uniq_end) = @{$new_slot->{'uniqueperiod'}};
221: foreach my $slot_name (keys(%$consumed_uniqueperiods)) {
222: my ($start,$end)=@{$consumed_uniqueperiods->{$slot_name}};
223: if (!
224: ($start < $new_uniq_start && $end < $new_uniq_start) ||
225: ($start > $new_uniq_end && $end > $new_uniq_end )) {
226: return $slot_name;
227: }
228: }
229: return undef;
230:
231: }
232:
233: sub network_error {
234: my ($result) = @_;
235: if ($result =~ /^(con_lost|no_such_host|error: [^2])/) {
236: return 1;
237: }
238: return 0;
239: }
240:
241: sub make_reservation {
242: my ($slot_name,$slot,$symb)=@_;
243:
244: my ($cnum,$cdom)=&get_course();
245:
246: my $value=&Apache::lonnet::EXT("resource.0.availablestudent",$symb,
247: $env{'user.domain'},$env{'user.name'});
248: &Apache::lonxml::debug("value is $value<br />");
249:
250: my $use_slots = &Apache::lonnet::EXT("resource.0.useslots");
251: &Apache::lonxml::debug("use_slots is $use_slots<br />");
252:
253: if (&network_error($value) || &network_error($use_slots)) {
254: return 'error: Unable to determine current status';
255: }
256:
257: my $parm_symb = $symb;
258: my $parm_level = 1;
259: if ($use_slots eq 'map') {
260: my ($map) = &Apache::lonnet::decode_symb($symb);
261: $parm_symb = &Apache::lonnet::symbread($map);
262: $parm_level = 2;
263: }
264:
265: foreach my $other_slot (split(/:/, $value)) {
266: if ($other_slot eq $slot_name) {
267: my %consumed=&Apache::lonnet::dump('slot_reservations', $cdom,
268: $cnum, "^$slot_name\0");
269: if (&network_error($value)) {
270: return 'error: Unable to determine current status';
271: }
272: my $me=$env{'user.name'}.':'.$env{'user.domain'};
273: foreach my $key (keys(%consumed)) {
274: if ($consumed{$key}->{'name'} eq $me) {
275: my $num=(split('\0',$key))[1];
276: return -$num;
277: }
278: }
279: }
280: }
281:
282: my $max=$slot->{'maxspace'};
283: if (!defined($max)) { $max=99999; }
284:
285: my (@ids)=&get_reservation_ids($slot_name);
286: if (&network_error(@ids)) {
287: return 'error: Unable to determine current status';
288: }
289: my $last=0;
290: foreach my $id (@ids) {
291: my $num=(split('\0',$id))[1];
292: if ($num > $last) { $last=$num; }
293: }
294:
295: my $wanted=$last+1;
296: &Apache::lonxml::debug("wanted $wanted<br />");
297: if (scalar(@ids) >= $max) {
298: # full up
299: return undef;
300: }
301:
302: my %reservation=('name' => $env{'user.name'}.':'.$env{'user.domain'},
303: 'timestamp' => time,
304: 'symb' => $parm_symb);
305:
306: my $success=&Apache::lonnet::newput('slot_reservations',
307: {"$slot_name\0$wanted" =>
308: \%reservation},
309: $cdom, $cnum);
310:
311: if ($success eq 'ok') {
312: my $new_value=$slot_name;
313: if ($value) {
314: $new_value=$value.':'.$new_value;
315: }
316: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
317: '0_availablestudent',
318: $parm_level, $new_value,
319: 'string',
320: $env{'user.name'},
321: $env{'user.domain'});
322: &Apache::lonxml::debug("hrrm $result");
323: return $wanted;
324: }
325:
326: # someone else got it
327: return undef;
328: }
329:
330: sub remove_registration {
331: my ($r) = @_;
332: if ($env{'form.entry'} ne 'remove all') {
333: return &remove_registration_user($r);
334: }
335: my $slot_name = $env{'form.slotname'};
336: my %slot=&Apache::lonnet::get_slot($slot_name);
337:
338: my ($cnum,$cdom)=&get_course();
339: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
340: "^$slot_name\0");
341: if (&network_error(%consumed)) {
342: $r->print("<p>".&mt('A network error has occured.').'</p>');
343: return;
344: }
345: if (!%consumed) {
346: $r->print("<p>".&mt('Slot <tt>[_1]</tt> has no reservations.',
347: $slot_name)."</p>");
348: return;
349: }
350:
351: my @names = map { $consumed{$_}{'name'} } (sort(keys(%consumed)));
352: my $names = join(' ',@names);
353:
354: my $msg = &mt('Remove all of [_1] from slot [_2]?',$names,$slot_name);
355: &remove_registration_confirmation($r,$msg,['entry','slotname']);
356: }
357:
358: sub remove_registration_user {
359: my ($r) = @_;
360:
361: my $slot_name = $env{'form.slotname'};
362:
363: my $name = &Apache::loncommon::plainname($env{'form.uname'},
364: $env{'form.udom'});
365:
366: my $title = &Apache::lonnet::gettitle($env{'form.symb'});
367:
368: my $msg = &mt('Remove [_1] from slot [_2] for [_3]',
369: $name,$slot_name,$title);
370:
371: &remove_registration_confirmation($r,$msg,['uname','udom','slotname',
372: 'entry','symb']);
373: }
374:
375: sub remove_registration_confirmation {
376: my ($r,$msg,$inputs) =@_;
377:
378: my $hidden_input;
379: foreach my $parm (@{$inputs}) {
380: $hidden_input .=
381: '<input type="hidden" name="'.$parm.'" value="'
382: .&HTML::Entities::encode($env{'form.'.$parm},'"<>&\'').'" />'."\n";
383: }
384: my %lt = &Apache::lonlocal::texthash('yes' => 'Yes',
385: 'no' => 'No',);
386: $r->print(<<"END_CONFIRM");
387: <p> $msg </p>
388: <form action="/adm/slotrequest" method="POST">
389: <input type="hidden" name="command" value="release" />
390: <input type="hidden" name="button" value="yes" />
391: $hidden_input
392: <input type="submit" value="$lt{'yes'}" />
393: </form>
394: <form action="/adm/slotrequest" method="POST">
395: <input type="hidden" name="command" value="showslots" />
396: <input type="submit" value="$lt{'no'}" />
397: </form>
398: END_CONFIRM
399:
400: }
401:
402: sub release_all_slot {
403: my ($r,$mgr)=@_;
404:
405: my $slot_name = $env{'form.slotname'};
406:
407: my ($cnum,$cdom)=&get_course();
408:
409: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
410: "^$slot_name\0");
411:
412: $r->print('<p>'.&mt('Releasing reservations').'</p>');
413:
414: foreach my $entry (sort { $consumed{$a}{'name'} cmp
415: $consumed{$b}{'name'} } (keys(%consumed))) {
416: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
417: my ($result,$msg) =
418: &release_reservation($slot_name,$uname,$udom,
419: $consumed{$entry}{'symb'},$mgr);
420: $r->print("<p>$msg</p>");
421: $r->rflush();
422: }
423: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
424: &mt('Return to slot list').'</a></p>');
425: &return_link($r);
426: }
427:
428: sub release_slot {
429: my ($r,$symb,$slot_name,$inhibit_return_link,$mgr)=@_;
430:
431: if ($slot_name eq '') { $slot_name=$env{'form.slotname'}; }
432:
433: my ($uname,$udom) = ($env{'user.name'}, $env{'user.domain'});
434: if ($mgr eq 'F'
435: && defined($env{'form.uname'}) && defined($env{'form.udom'})) {
436: ($uname,$udom) = ($env{'form.uname'}, $env{'form.udom'});
437: }
438:
439: if ($mgr eq 'F'
440: && defined($env{'form.symb'})) {
441: $symb = $env{'form.symb'};
442: }
443:
444: my ($result,$msg) =
445: &release_reservation($slot_name,$uname,$udom,$symb,$mgr);
446: $r->print("<p>$msg</p>");
447:
448: if ($mgr eq 'F') {
449: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
450: &mt('Return to slot list').'</a></p>');
451: }
452:
453: if (!$inhibit_return_link) { &return_link($r); }
454: return $result;
455: }
456:
457: sub release_reservation {
458: my ($slot_name,$uname,$udom,$symb,$mgr) = @_;
459: my %slot=&Apache::lonnet::get_slot($slot_name);
460: my $description=&get_description($slot_name,\%slot);
461:
462: if ($mgr ne 'F') {
463: if ($slot{'starttime'} < time) {
464: return (0,&mt('Not allowed to release Reservation: [_1], as it has already ended.',$description));
465: }
466: }
467: # get parameter string, check for existance, rebuild string with the slot
468: my @slots = split(/:/,&Apache::lonnet::EXT("resource.0.availablestudent",
469: $symb,$udom,$uname));
470:
471: my @new_slots;
472: foreach my $exist_slot (@slots) {
473: if ($exist_slot eq $slot_name) { next; }
474: push(@new_slots,$exist_slot);
475: }
476: my $new_param = join(':',@new_slots);
477:
478: my ($cnum,$cdom)=&get_course();
479:
480: # get slot reservations, check if user has one, if so remove reservation
481: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
482: "^$slot_name\0");
483: foreach my $entry (keys(%consumed)) {
484: if ( $consumed{$entry}->{'name'} eq ($uname.':'.$udom) ) {
485: &Apache::lonnet::del('slot_reservations',[$entry],
486: $cdom,$cnum);
487: }
488: }
489:
490: my $use_slots = &Apache::lonnet::EXT("resource.0.useslots");
491: &Apache::lonxml::debug("use_slots is $use_slots<br />");
492:
493: if (&network_error($use_slots)) {
494: return (0,'error: Unable to determine current status');
495: }
496:
497: my $parm_level = 1;
498: if ($use_slots eq 'map') {
499: $parm_level = 2;
500: }
501: # store new parameter string
502: my $result=&Apache::lonparmset::storeparm_by_symb($symb,
503: '0_availablestudent',
504: $parm_level, $new_param,
505: 'string', $uname, $udom);
506:
507: my $msg;
508: if ($mgr eq 'F') {
509: $msg = &mt('Released Reservation for user: [_1]',"$uname:$udom");
510: } else {
511: $msg = &mt('Released Reservation: [_1]',$description);
512: }
513: return (1,$msg);
514: }
515:
516: sub delete_slot {
517: my ($r)=@_;
518:
519: my $slot_name = $env{'form.slotname'};
520: my %slot=&Apache::lonnet::get_slot($slot_name);
521:
522: my ($cnum,$cdom)=&get_course();
523: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
524: "^$slot_name\0");
525: my ($tmp) = %consumed;
526: if ($tmp =~ /error: 2/) { undef(%consumed); }
527:
528: if (%slot && !%consumed) {
529: $slot{'type'} = 'deleted';
530: my $ret = &Apache::lonnet::cput('slots', {$slot_name => \%slot},
531: $cdom, $cnum);
532: if ($ret eq 'ok') {
533: $r->print("<p>Slot <tt>$slot_name</tt> marked as deleted.</p>");
534: } else {
535: $r->print("<p> An error ($ret) occurse when attempting to delete Slot <tt>$slot_name</tt>.</p>");
536: }
537: } else {
538: if (%consumed) {
539: $r->print("<p>Slot <tt>$slot_name</tt> has active reservations.</p>");
540: } else {
541: $r->print("<p>Slot <tt>$slot_name</tt> does not exist.</p>");
542: }
543: }
544: $r->print('<p><a href="/adm/slotrequest?command=showslots">'.
545: &mt('Return to slot list').'</a></p>');
546: &return_link($r);
547: }
548:
549: sub return_link {
550: my ($r) = @_;
551: $r->print('<p><a href="/adm/flip?postdata=return:">'.
552: &mt('Return to last resource').'</a></p>');
553: }
554:
555: sub get_slot {
556: my ($r,$symb)=@_;
557:
558: my %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
559: my $slot_name=&check_for_conflict($symb,$env{'form.slotname'},\%slot);
560:
561: if ($slot_name =~ /^error: (.*)/) {
562: $r->print("<p>An error occured while attempting to make a reservation. ($1)</p>");
563: &return_link($r);
564: return;
565: }
566: if ($slot_name) {
567: my %slot=&Apache::lonnet::get_slot($slot_name);
568: my $description1=&get_description($slot_name,\%slot);
569: %slot=&Apache::lonnet::get_slot($env{'form.slotname'});
570: my $description2=&get_description($env{'form.slotname'},\%slot);
571: $r->print("<p>Already have a reservation: $description1</p>");
572: if ($slot_name ne $env{'form.slotname'}) {
573: $r->print(<<STUFF);
574: <form method="POST" action="/adm/slotrequest">
575: <input type="hidden" name="symb" value="$env{'form.symb'}" />
576: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
577: <input type="hidden" name="releaseslot" value="$slot_name" />
578: <input type="hidden" name="command" value="change" />
579: STUFF
580: $r->print("<p>You can either ");
581: $r->print(<<STUFF);
582: <input type="submit" name="change" value="Change" />
583: STUFF
584: $r->print(' your reservation from <b>'.$description1.'</b> to <b>'.
585: $description2.
586: '</b> <br />or </p>');
587: &return_link($r);
588: $r->print(<<STUFF);
589: </form>
590: STUFF
591: } else {
592: &return_link($r);
593: }
594: return;
595: }
596:
597: my $reserved=&make_reservation($env{'form.slotname'},
598: \%slot,$symb);
599: my $description=&get_description($env{'form.slotname'},\%slot);
600: if (defined($reserved)) {
601: if ($slot_name =~ /^error: (.*)/) {
602: $r->print("<p>An error occured while attempting to make a reservation. ($1)</p>");
603: } elsif ($reserved > -1) {
604: $r->print("<p>Success: $description</p>");
605: } elsif ($reserved < 0) {
606: $r->print("<p>Already reserved: $description</p>");
607: }
608: &return_link($r);
609: return;
610: }
611:
612: my %lt=('request'=>"Availibility list",
613: 'try' =>'Try again');
614: %lt=&Apache::lonlocal::texthash(%lt);
615:
616: $r->print(<<STUFF);
617: <p> <font color="red">Failed</font> to reserve a spot for $description. </p>
618: <p>
619: <form method="POST" action="/adm/slotrequest">
620: <input type="submit" name="Try Again" value="$lt{'try'}" />
621: <input type="hidden" name="symb" value="$env{'form.symb'}" />
622: <input type="hidden" name="slotname" value="$env{'form.slotname'}" />
623: <input type="hidden" name="command" value="get" />
624: </form>
625: ?
626: </p>
627: <p>
628: or
629: <form method="POST" action="/adm/slotrequest">
630: <input type="hidden" name="symb" value="$env{'form.symb'}" />
631: <input type="submit" name="requestattempt" value="$lt{'request'}" />
632: </form>
633: </p>
634: or
635: STUFF
636:
637: &return_link($r);
638: return;
639: }
640:
641: sub allowed_slot {
642: my ($slot_name,$slot,$symb,$slots,$consumed_uniqueperiods)=@_;
643:
644: #already started
645: if ($slot->{'starttime'} < time) {
646: # all open slot to be schedulable
647: #return 0;
648: }
649: &Apache::lonxml::debug("$slot_name starttime good");
650:
651: #already ended
652: if ($slot->{'endtime'} < time) {
653: return 0;
654: }
655: &Apache::lonxml::debug("$slot_name endtime good");
656:
657: # not allowed to pick this one
658: if (defined($slot->{'type'})
659: && $slot->{'type'} ne 'schedulable_student') {
660: return 0;
661: }
662: &Apache::lonxml::debug("$slot_name type good");
663:
664: # reserve time not yet started
665: if ($slot->{'startreserve'} > time) {
666: return 0;
667: }
668: &Apache::lonxml::debug("$slot_name reserve good");
669:
670: my $userallowed=0;
671: # its for a different set of users
672: if (defined($slot->{'allowedsections'})) {
673: if (!defined($env{'request.role.sec'})
674: && grep(/^No section assigned$/,
675: split(',',$slot->{'allowedsections'}))) {
676: $userallowed=1;
677: }
678: if (defined($env{'request.role.sec'})
679: && grep(/^\Q$env{'request.role.sec'}\E$/,
680: split(',',$slot->{'allowedsections'}))) {
681: $userallowed=1;
682: }
683: }
684: &Apache::lonxml::debug("$slot_name sections is $userallowed");
685:
686: # its for a different set of users
687: if (defined($slot->{'allowedusers'})
688: && grep(/^\Q$env{'user.name'}:$env{'user.domain'}\E$/,
689: split(',',$slot->{'allowedusers'}))) {
690: $userallowed=1;
691: }
692:
693: if (!defined($slot->{'allowedusers'})
694: && !defined($slot->{'allowedsections'})) {
695: $userallowed=1;
696: }
697:
698: &Apache::lonxml::debug("$slot_name user is $userallowed");
699: return 0 if (!$userallowed);
700:
701: # not allowed for this resource
702: if (defined($slot->{'symb'})
703: && $slot->{'symb'} ne $symb) {
704: return 0;
705: }
706:
707: my $conflict = &check_for_conflict($symb,$slot_name,$slot,$slots,
708: $consumed_uniqueperiods);
709: if ($conflict) {
710: if ($slots->{$conflict}{'starttime'} < time) {
711: return 0;
712: }
713: }
714: &Apache::lonxml::debug("$slot_name symb good");
715: return 1;
716: }
717:
718: sub get_description {
719: my ($slot_name,$slot)=@_;
720: my $description=$slot->{'description'};
721: if (!defined($description)) {
722: $description=&mt('[_1] From [_2] to [_3]',$slot_name,
723: &Apache::lonlocal::locallocaltime($slot->{'starttime'}),
724: &Apache::lonlocal::locallocaltime($slot->{'endtime'}));
725: }
726: return $description;
727: }
728:
729: sub show_choices {
730: my ($r,$symb)=@_;
731:
732: my ($cnum,$cdom)=&get_course();
733: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
734: my $consumed_uniqueperiods = &get_consumed_uniqueperiods(\%slots);
735: my $available;
736: $r->print('<table border="1">');
737: &Apache::lonxml::debug("Checking Slots");
738: my @got_slots=&check_for_reservation($symb,'allslots');
739: foreach my $slot (sort
740: { return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'} }
741: (keys(%slots))) {
742:
743: &Apache::lonxml::debug("Checking Slot $slot");
744: next if (!&allowed_slot($slot,$slots{$slot},undef,\%slots,
745: $consumed_uniqueperiods));
746:
747: $available++;
748:
749: my $description=&get_description($slot,$slots{$slot});
750:
751: my $form=&mt('Unavailable');
752: if ((grep(/^\Q$slot\E$/,@got_slots)) ||
753: &space_available($slot,$slots{$slot},$symb)) {
754: my $text=&mt('Select');
755: my $command='get';
756: if (grep(/^\Q$slot\E$/,@got_slots)) {
757: $text=&mt('Free Reservation');
758: $command='release';
759: } else {
760: my $conflict = &check_for_conflict($symb,$slot,$slots{$slot},
761: \%slots,
762: $consumed_uniqueperiods);
763: if ($conflict) {
764: $text=&mt('Change Reservation');
765: $command='get';
766: }
767: }
768: my $escsymb=&escape($symb);
769: $form=<<STUFF;
770: <form method="POST" action="/adm/slotrequest">
771: <input type="submit" name="Select" value="$text" />
772: <input type="hidden" name="symb" value="$escsymb" />
773: <input type="hidden" name="slotname" value="$slot" />
774: <input type="hidden" name="command" value="$command" />
775: </form>
776: STUFF
777: }
778: $r->print(<<STUFF);
779: <tr>
780: <td>$form</td>
781: <td>$description</td>
782: </tr>
783: STUFF
784: }
785:
786: if (!$available) {
787: $r->print('<tr><td>No available times. <a href="/adm/flip?postdata=return:">'.
788: &mt('Return to last resource').'</a></td></tr>');
789: }
790: $r->print('</table>');
791: }
792:
793: sub to_show {
794: my ($slotname,$slot,$when,$deleted,$name) = @_;
795: my $time=time;
796: my $week=60*60*24*7;
797:
798: if ($deleted eq 'hide' && $slot->{'type'} eq 'deleted') {
799: return 0;
800: }
801:
802: if ($name && $name->{'value'} =~ /\w/) {
803: if ($name->{'type'} eq 'substring') {
804: if ($slotname !~ /\Q$name->{'value'}\E/) {
805: return 0;
806: }
807: }
808: if ($name->{'type'} eq 'exact') {
809: if ($slotname eq $name->{'value'}) {
810: return 0;
811: }
812: }
813: }
814:
815: if ($when eq 'any') {
816: return 1;
817: } elsif ($when eq 'now') {
818: if ($time > $slot->{'starttime'} &&
819: $time < $slot->{'endtime'}) {
820: return 1;
821: }
822: return 0;
823: } elsif ($when eq 'nextweek') {
824: if ( ($time < $slot->{'starttime'} &&
825: ($time+$week) > $slot->{'starttime'})
826: ||
827: ($time < $slot->{'endtime'} &&
828: ($time+$week) > $slot->{'endtime'}) ) {
829: return 1;
830: }
831: return 0;
832: } elsif ($when eq 'lastweek') {
833: if ( ($time > $slot->{'starttime'} &&
834: ($time-$week) < $slot->{'starttime'})
835: ||
836: ($time > $slot->{'endtime'} &&
837: ($time-$week) < $slot->{'endtime'}) ) {
838: return 1;
839: }
840: return 0;
841: } elsif ($when eq 'willopen') {
842: if ($time < $slot->{'starttime'}) {
843: return 1;
844: }
845: return 0;
846: } elsif ($when eq 'wereopen') {
847: if ($time > $slot->{'endtime'}) {
848: return 1;
849: }
850: return 0;
851: }
852:
853: return 1;
854: }
855:
856: sub remove_link {
857: my ($slotname,$entry,$uname,$udom,$symb) = @_;
858:
859: my $remove = &mt('Remove');
860:
861: if ($entry eq 'remove all') {
862: $remove = &mt('Remove All');
863: undef($uname);
864: undef($udom);
865: }
866:
867: $slotname = &escape($slotname);
868: $entry = &escape($entry);
869: $uname = &escape($uname);
870: $udom = &escape($udom);
871: $symb = &escape($symb);
872:
873: return <<"END_LINK";
874: <a href="/adm/slotrequest?command=remove_registration&slotname=$slotname&entry=$entry&uname=$uname&udom=$udom&symb=$symb"
875: >($remove)</a>
876: END_LINK
877:
878: }
879:
880: sub show_table {
881: my ($r,$mgr)=@_;
882:
883: my ($cnum,$cdom)=&get_course();
884: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
885: if ( (keys(%slots))[0] =~ /^error: 2 /) {
886: undef(%slots);
887: }
888: my $available;
889: if ($mgr eq 'F') {
890: $r->print('<div>');
891: $r->print('<form method="POST" action="/adm/slotrequest">
892: <input type="hidden" name="command" value="uploadstart" />
893: <input type="submit" name="start" value="'.&mt('Upload Slot List').'" />
894: </form>');
895: $r->print('<form method="POST" action="/adm/helper/newslot.helper">
896: <input type="submit" name="newslot" value="'.&mt('Create a New Slot').'" />
897: </form>');
898: $r->print('</div>');
899: }
900:
901: my %Saveable_Parameters = ('show' => 'array',
902: 'when' => 'scalar',
903: 'order' => 'scalar',
904: 'deleted' => 'scalar',
905: 'name_filter_type' => 'scalar',
906: 'name_filter_value' => 'scalar',
907: );
908: &Apache::loncommon::store_course_settings('slotrequest',
909: \%Saveable_Parameters);
910: &Apache::loncommon::restore_course_settings('slotrequest',
911: \%Saveable_Parameters);
912: &Apache::grades::init_perm();
913: my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all');
914: &Apache::grades::reset_perm();
915:
916: # what to display filtering
917: my %show_fields=&Apache::lonlocal::texthash(
918: 'name' => 'Slot Name',
919: 'description' => 'Description',
920: 'type' => 'Type',
921: 'starttime' => 'Start time',
922: 'endtime' => 'End Time',
923: 'startreserve' => 'Time students can start reserving',
924: 'secret' => 'Secret Word',
925: 'maxspace' => 'Maximum # of students',
926: 'ip' => 'IP or DNS restrictions',
927: 'symb' => 'Resource slot is restricted to.',
928: 'allowedsections' => 'Sections slot is restricted to.',
929: 'allowedusers' => 'Users slot is restricted to.',
930: 'uniqueperiod' => 'Period of time slot is unique',
931: 'scheduled' => 'Scheduled Students',
932: 'proctor' => 'List of proctors');
933: my @show_order=('name','description','type','starttime','endtime',
934: 'startreserve','secret','maxspace','ip','symb',
935: 'allowedsections','allowedusers','uniqueperiod',
936: 'scheduled','proctor');
937: my @show =
938: (exists($env{'form.show'})) ? &Apache::loncommon::get_env_multiple('form.show')
939: : keys(%show_fields);
940: my %show = map { $_ => 1 } (@show);
941:
942: #when filtering setup
943: my %when_fields=&Apache::lonlocal::texthash(
944: 'now' => 'Open now',
945: 'nextweek' => 'Open within the next week',
946: 'lastweek' => 'Were open last week',
947: 'willopen' => 'Will open later',
948: 'wereopen' => 'Were open',
949: 'any' => 'Anytime',
950: );
951: my @when_order=('any','now','nextweek','lastweek','willopen','wereopen');
952: $when_fields{'select_form_order'} = \@when_order;
953: my $when = (exists($env{'form.when'})) ? $env{'form.when'}
954: : 'now';
955:
956: #display of students setup
957: my %stu_display_fields=
958: &Apache::lonlocal::texthash('username' => 'User name',
959: 'fullname' => 'Full name',
960: );
961: my @stu_display_order=('fullname','username');
962: my @stu_display =
963: (exists($env{'form.studisplay'})) ? &Apache::loncommon::get_env_multiple('form.studisplay')
964: : keys(%stu_display_fields);
965: my %stu_display = map { $_ => 1 } (@stu_display);
966:
967: #name filtering setup
968: my %name_filter_type_fields=
969: &Apache::lonlocal::texthash('substring' => 'Substring',
970: 'exact' => 'Exact',
971: #'reg' => 'Regular Expression',
972: );
973: my @name_filter_type_order=('substring','exact');
974:
975: $name_filter_type_fields{'select_form_order'} = \@name_filter_type_order;
976: my $name_filter_type =
977: (exists($env{'form.name_filter_type'})) ? $env{'form.name_filter_type'}
978: : 'substring';
979: my $name_filter = {'type' => $name_filter_type,
980: 'value' => $env{'form.name_filter_value'},};
981:
982: #deleted slot filtering
983: my $hide_radio =
984: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'hide');
985: my $show_radio =
986: &Apache::lonhtmlcommon::radio('deleted',$env{'form.deleted'},'show');
987:
988: $r->print('<form method="POST" action="/adm/slotrequest">
989: <input type="hidden" name="command" value="showslots" />');
990: $r->print('<div>');
991: $r->print('<table class="inline">
992: <tr><th>'.&mt('Show').'</th>
993: <th>'.&mt('Student Display').'</th>
994: <th>'.&mt('Open').'</th>
995: <th>'.&mt('Slot Name Filter').'</th>
996: <th>'.&mt('Options').'</th>
997: </tr>
998: <tr><td>'.&Apache::loncommon::multiple_select_form('show',\@show,6,\%show_fields,\@show_order).
999: '</td>
1000: <td>
1001: '.&Apache::loncommon::multiple_select_form('studisplay',\@stu_display,
1002: 6,\%stu_display_fields,
1003: \@stu_display_order).'
1004: </td>
1005: <td>'.&Apache::loncommon::select_form($when,'when',%when_fields).
1006: '</td>
1007: <td>'.&Apache::loncommon::select_form($name_filter_type,
1008: 'name_filter_type',
1009: %name_filter_type_fields).
1010: '<br />'.
1011: &Apache::lonhtmlcommon::textbox('name_filter_value',
1012: $env{'form.name_filter_value'},
1013: 15).
1014: '</td>
1015: <td>
1016: <table>
1017: <tr>
1018: <td rowspan="2">Deleted slots:</td>
1019: <td><label>'.$show_radio.'Show</label></td>
1020: </tr>
1021: <tr>
1022: <td><label>'.$hide_radio.'Hide</label></td>
1023: </tr>
1024: </table>
1025: </td>
1026: </tr>
1027: </table>');
1028: $r->print('</div>');
1029: $r->print('<p><input type="submit" name="start" value="'.&mt('Update Display').'" /></p>');
1030: my $linkstart='<a href="/adm/slotrequest?command=showslots&order=';
1031: $r->print('<table class="thinborder">
1032: <tr>
1033: <th></th>');
1034: foreach my $which (@show_order) {
1035: if ($which ne 'proctor' && exists($show{$which})) {
1036: $r->print('<th>'.$linkstart.$which.'">'.$show_fields{$which}.'</a></th>');
1037: }
1038: }
1039:
1040: my %name_cache;
1041: my $slotsort = sub {
1042: if ($env{'form.order'}=~/^(type|description|endtime|startreserve|maxspace|ip|symb|allowedsections|allowedusers)$/) {
1043: if (lc($slots{$a}->{$env{'form.order'}})
1044: ne lc($slots{$b}->{$env{'form.order'}})) {
1045: return (lc($slots{$a}->{$env{'form.order'}})
1046: cmp lc($slots{$b}->{$env{'form.order'}}));
1047: }
1048: } elsif ($env{'form.order'} eq 'name') {
1049: if (lc($a) cmp lc($b)) {
1050: return lc($a) cmp lc($b);
1051: }
1052: } elsif ($env{'form.order'} eq 'uniqueperiod') {
1053:
1054: if ($slots{$a}->{'uniqueperiod'}[0]
1055: ne $slots{$b}->{'uniqueperiod'}[0]) {
1056: return ($slots{$a}->{'uniqueperiod'}[0]
1057: cmp $slots{$b}->{'uniqueperiod'}[0]);
1058: }
1059: if ($slots{$a}->{'uniqueperiod'}[1]
1060: ne $slots{$b}->{'uniqueperiod'}[1]) {
1061: return ($slots{$a}->{'uniqueperiod'}[1]
1062: cmp $slots{$b}->{'uniqueperiod'}[1]);
1063: }
1064: }
1065: return $slots{$a}->{'starttime'} <=> $slots{$b}->{'starttime'};
1066: };
1067: foreach my $slot (sort $slotsort (keys(%slots))) {
1068: if (!&to_show($slot,$slots{$slot},$when,
1069: $env{'form.deleted'},$name_filter)) { next; }
1070: if (defined($slots{$slot}->{'type'})
1071: && $slots{$slot}->{'type'} ne 'schedulable_student') {
1072: #next;
1073: }
1074: my $description=&get_description($slot,$slots{$slot});
1075: my $ids;
1076: if (exists($show{'scheduled'})) {
1077: my %consumed=&Apache::lonnet::dump('slot_reservations',$cdom,$cnum,
1078: "^$slot\0");
1079: my ($tmp)=%consumed;
1080: if ($tmp !~ /^error: /) {
1081: foreach my $entry (sort { $consumed{$a}{name} cmp
1082: $consumed{$b}{name} }
1083: (keys(%consumed))) {
1084: my (undef,$id)=split("\0",$entry);
1085: my ($uname,$udom) = split(':',$consumed{$entry}{'name'});
1086: $ids.= '<nobr>';
1087: foreach my $item (@stu_display_order) {
1088: if ($stu_display{$item}) {
1089: if ($item eq 'fullname') {
1090: $ids.=$fullname->{"$uname:$udom"}.' ';
1091: } elsif ($item eq 'username') {
1092: $ids.="<tt>$uname:$udom</tt> ";
1093: }
1094: }
1095: }
1096: $ids.=&remove_link($slot,$entry,$uname,$udom,
1097: $consumed{$entry}{'symb'}).'</nobr><br />';
1098: }
1099: }
1100: }
1101:
1102: my $start=($slots{$slot}->{'starttime'}?
1103: &Apache::lonlocal::locallocaltime($slots{$slot}->{'starttime'}):'');
1104: my $end=($slots{$slot}->{'endtime'}?
1105: &Apache::lonlocal::locallocaltime($slots{$slot}->{'endtime'}):'');
1106: my $start_reserve=($slots{$slot}->{'startreserve'}?
1107: &Apache::lonlocal::locallocaltime($slots{$slot}->{'startreserve'}):'');
1108:
1109: my $unique;
1110: if (ref($slots{$slot}{'uniqueperiod'})) {
1111: $unique=localtime($slots{$slot}{'uniqueperiod'}[0]).','.
1112: localtime($slots{$slot}{'uniqueperiod'}[1]);
1113: }
1114:
1115: my $title;
1116: if (exists($slots{$slot}{'symb'})) {
1117: my (undef,undef,$res)=
1118: &Apache::lonnet::decode_symb($slots{$slot}{'symb'});
1119: $res = &Apache::lonnet::clutter($res);
1120: $title = &Apache::lonnet::gettitle($slots{$slot}{'symb'});
1121: $title='<a href="'.$res.'?symb='.$slots{$slot}{'symb'}.'">'.$title.'</a>';
1122: }
1123:
1124: my $allowedsections;
1125: if (exists($show{'allowedsections'})) {
1126: $allowedsections =
1127: join(', ',sort(split(/\s*,\s*/,
1128: $slots{$slot}->{'allowedsections'})));
1129: }
1130:
1131: my @allowedusers;
1132: if (exists($show{'allowedusers'})) {
1133: @allowedusers= map {
1134: my ($uname,$udom)=split(/:/,$_);
1135: my $fullname=$name_cache{$_};
1136: if (!defined($fullname)) {
1137: $fullname = &Apache::loncommon::plainname($uname,$udom);
1138: $fullname =~s/\s/ /g;
1139: $name_cache{$_} = $fullname;
1140: }
1141: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1142: } (sort(split(/\s*,\s*/,$slots{$slot}->{'allowedusers'})));
1143: }
1144: my $allowedusers=join(', ',@allowedusers);
1145:
1146: my @proctors;
1147: my $rowspan=1;
1148: my $colspan=1;
1149: if (exists($show{'proctor'})) {
1150: $rowspan=2;
1151: @proctors= map {
1152: my ($uname,$udom)=split(/:/,$_);
1153: my $fullname=$name_cache{$_};
1154: if (!defined($fullname)) {
1155: $fullname = &Apache::loncommon::plainname($uname,$udom);
1156: $fullname =~s/\s/ /g;
1157: $name_cache{$_} = $fullname;
1158: }
1159: &Apache::loncommon::aboutmewrapper($fullname,$uname,$udom);
1160: } (sort(split(/\s*,\s*/,$slots{$slot}->{'proctor'})));
1161: }
1162: my $proctors=join(', ',@proctors);
1163:
1164: my $edit=(<<"EDITLINK");
1165: <a href="/adm/helper/newslot.helper?name=$slot">Edit</a>
1166: EDITLINK
1167:
1168: my $delete=(<<"DELETELINK");
1169: <a href="/adm/slotrequest?command=delete&slotname=$slot">Delete</a>
1170: DELETELINK
1171:
1172: my $remove_all=&remove_link($slot,'remove all').'<br />';
1173:
1174: if ($ids ne '') { undef($delete); }
1175: if ($slots{$slot}{'type'} ne 'schedulable_student'
1176: || $ids eq '') {
1177: undef($remove_all);
1178: }
1179:
1180: $r->print("<tr>\n<td rowspan=\"$rowspan\">$edit $delete</td>\n");
1181: if (exists($show{'name'})) {
1182: $colspan++;$r->print("<td>$slot</td>");
1183: }
1184: if (exists($show{'description'})) {
1185: $colspan++;$r->print("<td>$description</td>\n");
1186: }
1187: if (exists($show{'type'})) {
1188: $colspan++;$r->print("<td>$slots{$slot}->{'type'}</td>\n");
1189: }
1190: if (exists($show{'starttime'})) {
1191: $colspan++;$r->print("<td>$start</td>\n");
1192: }
1193: if (exists($show{'endtime'})) {
1194: $colspan++;$r->print("<td>$end</td>\n");
1195: }
1196: if (exists($show{'startreserve'})) {
1197: $colspan++;$r->print("<td>$start_reserve</td>\n");
1198: }
1199: if (exists($show{'secret'})) {
1200: $colspan++;$r->print("<td>$slots{$slot}{'secret'}</td>\n");
1201: }
1202: if (exists($show{'maxspace'})) {
1203: $colspan++;$r->print("<td>$slots{$slot}{'maxspace'}</td>\n");
1204: }
1205: if (exists($show{'ip'})) {
1206: $colspan++;$r->print("<td>$slots{$slot}{'ip'}</td>\n");
1207: }
1208: if (exists($show{'symb'})) {
1209: $colspan++;$r->print("<td>$title</td>\n");
1210: }
1211: if (exists($show{'allowedsections'})) {
1212: $colspan++;$r->print("<td>$allowedsections</td>\n");
1213: }
1214: if (exists($show{'allowedusers'})) {
1215: $colspan++;$r->print("<td>$allowedusers</td>\n");
1216: }
1217: if (exists($show{'scheduled'})) {
1218: $colspan++;$r->print("<td>$remove_all $ids</td>\n</tr>\n");
1219: }
1220: if (exists($show{'proctor'})) {
1221: $r->print(<<STUFF);
1222: <tr>
1223: <td colspan="$colspan">$proctors</td>
1224: </tr>
1225: STUFF
1226: }
1227: }
1228: $r->print('</table>');
1229: }
1230:
1231: sub upload_start {
1232: my ($r)=@_;
1233: $r->print(&Apache::grades::checkforfile_js());
1234: my $result.='<table width=100% border=0><tr bgcolor="#e6ffff"><td>'."\n";
1235: $result.=' <b>'.
1236: &mt('Specify a file containing the slot definitions.').
1237: '</b></td></tr>'."\n";
1238: $result.='<tr bgcolor=#ffffe6><td>'."\n";
1239: my $upfile_select=&Apache::loncommon::upfile_select_html();
1240: my $ignore=&mt('Ignore First Line');
1241: $result.=<<ENDUPFORM;
1242: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1243: <input type="hidden" name="command" value="csvuploadmap" />
1244: $upfile_select
1245: <br /><input type="button" onClick="javascript:checkUpload(this.form);" value="Upload Data" />
1246: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
1247: </form>
1248: ENDUPFORM
1249: $result.='</td></tr></table>'."\n";
1250: $result.='</td></tr></table>'."\n";
1251: $r->print($result);
1252: }
1253:
1254: sub csvuploadmap_header {
1255: my ($r,$datatoken,$distotal)= @_;
1256: my $javascript;
1257: if ($env{'form.upfile_associate'} eq 'reverse') {
1258: $javascript=&csvupload_javascript_reverse_associate();
1259: } else {
1260: $javascript=&csvupload_javascript_forward_associate();
1261: }
1262:
1263: my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
1264: my $ignore=&mt('Ignore First Line');
1265: $r->print(<<ENDPICK);
1266: <form method="post" enctype="multipart/form-data" action="/adm/slotrequest" name="slotupload">
1267: <h3>Identify fields</h3>
1268: Total number of records found in file: $distotal <hr />
1269: Enter as many fields as you can. The system will inform you and bring you back
1270: to this page if the data selected is insufficient to create the slots.<hr />
1271: <input type="button" value="Reverse Association" onClick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
1272: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
1273: <input type="hidden" name="associate" value="" />
1274: <input type="hidden" name="datatoken" value="$datatoken" />
1275: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
1276: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
1277: <input type="hidden" name="upfile_associate"
1278: value="$env{'form.upfile_associate'}" />
1279: <input type="hidden" name="command" value="csvuploadassign" />
1280: <hr />
1281: <script type="text/javascript" language="Javascript">
1282: $javascript
1283: </script>
1284: ENDPICK
1285: return '';
1286:
1287: }
1288:
1289: sub csvuploadmap_footer {
1290: my ($request,$i,$keyfields) =@_;
1291: $request->print(<<ENDPICK);
1292: </table>
1293: <input type="hidden" name="nfields" value="$i" />
1294: <input type="hidden" name="keyfields" value="$keyfields" />
1295: <input type="button" onClick="javascript:verify(this.form)" value="Create Slots" /><br />
1296: </form>
1297: ENDPICK
1298: }
1299:
1300: sub csvupload_javascript_reverse_associate {
1301: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1302: return(<<ENDPICK);
1303: function verify(vf) {
1304: var foundstart=0;
1305: var foundend=0;
1306: var foundname=0;
1307: var foundtype=0;
1308: for (i=0;i<=vf.nfields.value;i++) {
1309: tw=eval('vf.f'+i+'.selectedIndex');
1310: if (i==0 && tw!=0) { foundname=1; }
1311: if (i==1 && tw!=0) { foundtype=1; }
1312: if (i==2 && tw!=0) { foundstat=1; }
1313: if (i==3 && tw!=0) { foundend=1; }
1314: }
1315: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1316: alert('$error1');
1317: return;
1318: }
1319: vf.submit();
1320: }
1321: function flip(vf,tf) {
1322: }
1323: ENDPICK
1324: }
1325:
1326: sub csvupload_javascript_forward_associate {
1327: my $error1=&mt('You need to specify the name, starttime, endtime and a type');
1328: return(<<ENDPICK);
1329: function verify(vf) {
1330: var foundstart=0;
1331: var foundend=0;
1332: var foundname=0;
1333: var foundtype=0;
1334: for (i=0;i<=vf.nfields.value;i++) {
1335: tw=eval('vf.f'+i+'.selectedIndex');
1336: if (tw==1) { foundname=1; }
1337: if (tw==2) { foundtype=1; }
1338: if (tw==3) { foundstat=1; }
1339: if (tw==4) { foundend=1; }
1340: }
1341: if (foundstart==0 && foundend==0 && foundtype==0 && foundname==0) {
1342: alert('$error1');
1343: return;
1344: }
1345: vf.submit();
1346: }
1347: function flip(vf,tf) {
1348: }
1349: ENDPICK
1350: }
1351:
1352: sub csv_upload_map {
1353: my ($r)= @_;
1354:
1355: my $datatoken;
1356: if (!$env{'form.datatoken'}) {
1357: $datatoken=&Apache::loncommon::upfile_store($r);
1358: } else {
1359: $datatoken=$env{'form.datatoken'};
1360: &Apache::loncommon::load_tmp_file($r);
1361: }
1362: my @records=&Apache::loncommon::upfile_record_sep();
1363: if ($env{'form.noFirstLine'}) { shift(@records); }
1364: &csvuploadmap_header($r,$datatoken,$#records+1);
1365: my ($i,$keyfields);
1366: if (@records) {
1367: my @fields=&csvupload_fields();
1368:
1369: if ($env{'form.upfile_associate'} eq 'reverse') {
1370: &Apache::loncommon::csv_print_samples($r,\@records);
1371: $i=&Apache::loncommon::csv_print_select_table($r,\@records,
1372: \@fields);
1373: foreach (@fields) { $keyfields.=$_->[0].','; }
1374: chop($keyfields);
1375: } else {
1376: unshift(@fields,['none','']);
1377: $i=&Apache::loncommon::csv_samples_select_table($r,\@records,
1378: \@fields);
1379: my %sone=&Apache::loncommon::record_sep($records[0]);
1380: $keyfields=join(',',sort(keys(%sone)));
1381: }
1382: }
1383: &csvuploadmap_footer($r,$i,$keyfields);
1384:
1385: return '';
1386: }
1387:
1388: sub csvupload_fields {
1389: return (['name','Slot name'],
1390: ['type','Type of slot'],
1391: ['starttime','Start Time of slot'],
1392: ['endtime','End Time of slot'],
1393: ['startreserve','Reservation Start Time'],
1394: ['ip','IP or DNS restriction'],
1395: ['proctor','List of proctor ids'],
1396: ['description','Slot Description'],
1397: ['maxspace','Maximum number of reservations'],
1398: ['symb','Resource Restriction'],
1399: ['uniqueperiod','Date range of slot exclusion'],
1400: ['secret','Secret word proctor uses to validate'],
1401: ['allowedsections','Sections slot is restricted to'],
1402: ['allowedusers','Users slot is restricted to'],
1403: );
1404: }
1405:
1406: sub csv_upload_assign {
1407: my ($r,$mgr)= @_;
1408: &Apache::loncommon::load_tmp_file($r);
1409: my @slotdata = &Apache::loncommon::upfile_record_sep();
1410: if ($env{'form.noFirstLine'}) { shift(@slotdata); }
1411: my %fields=&Apache::grades::get_fields();
1412: $r->print('<h3>Creating Slots</h3>');
1413: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
1414: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1415: my $countdone=0;
1416: my @errors;
1417: foreach my $slot (@slotdata) {
1418: my %slot;
1419: my %entries=&Apache::loncommon::record_sep($slot);
1420: my $domain;
1421: my $name=$entries{$fields{'name'}};
1422: if ($name=~/^\s*$/) {
1423: push(@errors,"Did not create slot with no name");
1424: next;
1425: }
1426: if ($name=~/\s/) {
1427: push(@errors,"$name not created -- Name must not contain spaces");
1428: next;
1429: }
1430: if ($name=~/\W/) {
1431: push(@errors,"$name not created -- Name must contain only letters, numbers and _");
1432: next;
1433: }
1434: if ($entries{$fields{'type'}}) {
1435: $slot{'type'}=$entries{$fields{'type'}};
1436: } else {
1437: $slot{'type'}='preassigned';
1438: }
1439: if ($slot{'type'} ne 'preassigned' &&
1440: $slot{'type'} ne 'schedulable_student') {
1441: push(@errors,"$name not created -- invalid type ($slot{'type'}) must be either preassigned or schedulable_student");
1442: next;
1443: }
1444: if ($entries{$fields{'starttime'}}) {
1445: $slot{'starttime'}=&UnixDate($entries{$fields{'starttime'}},"%s");
1446: }
1447: if ($entries{$fields{'endtime'}}) {
1448: $slot{'endtime'}=&UnixDate($entries{$fields{'endtime'}},"%s");
1449: }
1450:
1451: # start/endtime must be defined and greater than zero
1452: if (!$slot{'starttime'}) {
1453: push(@errors,"$name not created -- Invalid start time");
1454: next;
1455: }
1456: if (!$slot{'endtime'}) {
1457: push(@errors,"$name not created -- Invalid end time");
1458: next;
1459: }
1460: if ($slot{'starttime'} > $slot{'endtime'}) {
1461: push(@errors,"$name not created -- Slot starts after it ends");
1462: next;
1463: }
1464:
1465: if ($entries{$fields{'startreserve'}}) {
1466: $slot{'startreserve'}=
1467: &UnixDate($entries{$fields{'startreserve'}},"%s");
1468: }
1469: if (defined($slot{'startreserve'})
1470: && $slot{'startreserve'} > $slot{'starttime'}) {
1471: push(@errors,"$name not created -- Slot's reservation start time is after the slot's start time.");
1472: next;
1473: }
1474:
1475: foreach my $key ('ip','proctor','description','maxspace',
1476: 'secret','symb') {
1477: if ($entries{$fields{$key}}) {
1478: $slot{$key}=$entries{$fields{$key}};
1479: }
1480: }
1481:
1482: if ($entries{$fields{'uniqueperiod'}}) {
1483: my ($start,$end)=split(',',$entries{$fields{'uniqueperiod'}});
1484: my @times=(&UnixDate($start,"%s"),
1485: &UnixDate($end,"%s"));
1486: $slot{'uniqueperiod'}=\@times;
1487: }
1488: if (defined($slot{'uniqueperiod'})
1489: && $slot{'uniqueperiod'}[0] > $slot{'uniqueperiod'}[1]) {
1490: push(@errors,"$name not created -- Slot's unique period start time is later than the unique period's end time.");
1491: next;
1492: }
1493:
1494: &Apache::lonnet::cput('slots',{$name=>\%slot},$cdom,$cname);
1495: $r->print('.');
1496: $r->rflush();
1497: $countdone++;
1498: }
1499: $r->print("<p>Created $countdone slots\n</p>");
1500: foreach my $error (@errors) {
1501: $r->print("<p>$error\n</p>");
1502: }
1503: &show_table($r,$mgr);
1504: return '';
1505: }
1506:
1507: sub handler {
1508: my $r=shift;
1509:
1510: &Apache::loncommon::content_type($r,'text/html');
1511: &Apache::loncommon::no_cache($r);
1512: if ($r->header_only()) {
1513: $r->send_http_header();
1514: return OK;
1515: }
1516:
1517: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
1518:
1519: my $vgr=&Apache::lonnet::allowed('vgr',$env{'request.course.id'});
1520: my $mgr=&Apache::lonnet::allowed('mgr',$env{'request.course.id'});
1521: my $title='Requesting Another Worktime';
1522: if ($env{'form.command'} =~ /^(showslots|uploadstart|csvuploadmap|csvuploadassign)$/ && $vgr eq 'F') {
1523: $title = 'Managing Slots';
1524: }
1525: &start_page($r,$title);
1526:
1527: if ($env{'form.command'} eq 'showslots' && $vgr eq 'F') {
1528: &show_table($r,$mgr);
1529: } elsif ($env{'form.command'} eq 'remove_registration' && $mgr eq 'F') {
1530: &remove_registration($r);
1531: } elsif ($env{'form.command'} eq 'release' && $mgr eq 'F') {
1532: if ($env{'form.entry'} eq 'remove all') {
1533: &release_all_slot($r,$mgr);
1534: } else {
1535: &release_slot($r,undef,undef,undef,$mgr);
1536: }
1537: } elsif ($env{'form.command'} eq 'delete' && $mgr eq 'F') {
1538: &delete_slot($r);
1539: } elsif ($env{'form.command'} eq 'uploadstart' && $mgr eq 'F') {
1540: &upload_start($r);
1541: } elsif ($env{'form.command'} eq 'csvuploadmap' && $mgr eq 'F') {
1542: &csv_upload_map($r);
1543: } elsif ($env{'form.command'} eq 'csvuploadassign' && $mgr eq 'F') {
1544: if ($env{'form.associate'} ne 'Reverse Association') {
1545: &csv_upload_assign($r,$mgr);
1546: } else {
1547: if ( $env{'form.upfile_associate'} ne 'reverse' ) {
1548: $env{'form.upfile_associate'} = 'reverse';
1549: } else {
1550: $env{'form.upfile_associate'} = 'forward';
1551: }
1552: &csv_upload_map($r);
1553: }
1554: } else {
1555: my $symb=&unescape($env{'form.symb'});
1556: if (!defined($symb)) {
1557: &fail($r,'not_valid');
1558: return OK;
1559: }
1560: my (undef,undef,$res)=&Apache::lonnet::decode_symb($symb);
1561: my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
1562: if ($useslots ne 'resource' && $useslots ne 'map') {
1563: &fail($r,'not_available');
1564: return OK;
1565: }
1566: $env{'request.symb'}=$symb;
1567: my $type = ($res =~ /\.task$/) ? 'Task'
1568: : 'problem';
1569: my ($status) = &Apache::lonhomework::check_slot_access('0',$type);
1570: if ($status eq 'CAN_ANSWER' ||
1571: $status eq 'NEEDS_CHECKIN' ||
1572: $status eq 'WAITING_FOR_GRADE') {
1573: &fail($r,'not_allowed');
1574: return OK;
1575: }
1576: if ($env{'form.requestattempt'}) {
1577: &show_choices($r,$symb);
1578: } elsif ($env{'form.command'} eq 'release') {
1579: &release_slot($r,$symb);
1580: } elsif ($env{'form.command'} eq 'get') {
1581: &get_slot($r,$symb);
1582: } elsif ($env{'form.command'} eq 'change') {
1583: if (&release_slot($r,$symb,$env{'form.releaseslot'},1)) {
1584: &get_slot($r,$symb);
1585: }
1586: } else {
1587: $r->print("<p>Unknown command: ".$env{'form.command'}."</p>");
1588: }
1589: }
1590: &end_page($r);
1591: return OK;
1592: }
1593:
1594: 1;
1595: __END__
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