File:  [LON-CAPA] / loncom / interface / lonwhatsnew.pm
Revision 1.13: download - view: text, annotated - select for diffs
Mon May 23 23:06:23 2005 UTC (19 years, 1 month ago) by raeburn
Branches: MAIN
CVS tags: HEAD
Fixes to display of problems with errors.  Ability to set a threshold for av attempts, deg diff, number of submissions.  Ability to reset aggregate counters for tries, degdiff, users on a part-by-part basis.

    1: #
    2: # $Id: lonwhatsnew.pm,v 1.13 2005/05/23 23:06:23 raeburn Exp $
    3: #
    4: # Copyright Michigan State University Board of Trustees
    5: #
    6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    7: #
    8: # LON-CAPA is free software; you can redistribute it and/or modify
    9: # it under the terms of the GNU General Public License as published by
   10: # the Free Software Foundation; either version 2 of the License, or
   11: # (at your option) any later version.
   12: #
   13: # LON-CAPA is distributed in the hope that it will be useful,
   14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   16: # GNU General Public License for more details.
   17: #
   18: # You should have received a copy of the GNU General Public License
   19: # along with LON-CAPA; if not, write to the Free Software
   20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   21: #
   22: # /home/httpd/html/adm/gpl.txt
   23: #
   24: # http://www.lon-capa.org/
   25: #
   26: 
   27: 
   28: package Apache::lonwhatsnew;
   29: 
   30: use strict;
   31: use lib qw(/home/httpd/lib/perl);
   32: use Apache::lonnet;
   33: use Apache::loncommon();
   34: use Apache::lonhtmlcommon();
   35: use Apache::lonlocal;
   36: use Apache::loncoursedata();
   37: use Apache::lonnavmaps();
   38: use Apache::Constants qw(:common :http);
   39: use Time::Local;
   40: 
   41: #----------------------------
   42: # handler
   43: #
   44: #----------------------------
   45: 
   46: sub handler {
   47:     my $r = shift;
   48:     if ($r->header_only) {
   49:         &Apache::loncommon::content_type($r,'text/html');
   50:         $r->send_http_header;
   51:         return OK;
   52:     }
   53:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['command']);
   54: 
   55:     my $command;
   56:     if ($env{'form.action'} eq 'reset') {
   57:         $command = 'reset';
   58:     } elsif ($env{'form.action'} eq 'update') {
   59:         $command = 'update';
   60:     } else {
   61:         $command = $env{'form.command'};
   62:     }
   63: 
   64:     &Apache::loncommon::content_type($r,'text/html');
   65:     $r->send_http_header;
   66:     $r->print(&display_header());
   67:     if (! (($env{'request.course.fn'}) && (&Apache::lonnet::allowed('vsa',$env{'request.course.id'})))) {
   68:         # Not in a course, or not allowed to modify parms
   69:         $env{'user.error.msg'}="/adm/whatsnew:vsa:0:0:Cannot display student activity";
   70:         return HTTP_NOT_ACCEPTABLE;
   71:     }
   72: 
   73:     &Apache::lonhtmlcommon::clear_breadcrumbs();
   74:     if ($command eq 'chgthreshold') {
   75:         &Apache::lonhtmlcommon::add_breadcrumb
   76:             ({href=>'/adm/whatsnew?command=threshold',
   77:               text=>"Change thresholds"});
   78:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
   79:             (undef,'Course Action Items','Course_Action_Items_Thresholds'));
   80:     } else {
   81:         &Apache::lonhtmlcommon::add_breadcrumb
   82:             ({href=>'/adm/whatsnew',
   83:               text=>"Display Action Items"});
   84:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
   85:             (undef,'Course Action Items','Course_Action_Items_Display'));
   86:     }
   87:     &display_main_box($r,$command);
   88: }
   89: 
   90: #------------------------------
   91: # display_main_box
   92: #
   93: # Display all the elements within the main box
   94: #------------------------------
   95:                                                                                 
   96: sub display_main_box {
   97:     my ($r,$command) = @_;
   98:     my $domain=&Apache::loncommon::determinedomain();
   99:     my $tabbg=&Apache::loncommon::designparm('coordinator.tabbg',$domain);
  100:     $r->print('<table width="100%" border="0" cellpadding="5" cellspacing="0"><tr><td width="100%">');
  101: 
  102:     my %threshold_titles = (
  103:                          av_attempts => 'Average number of attempts',
  104:                          degdiff => 'Degree of difficulty',
  105:                          numstudents => 'Total number of students with submissions',
  106:     );
  107:     if ($command eq 'chgthreshold') {
  108:         &display_config_box($r,$command,$tabbg,\%threshold_titles);
  109:     } else {
  110:         &display_actions_box($r,$command,\%threshold_titles);
  111:     }
  112:     $r->print(<<END_OF_BLOCK);
  113:   </td>
  114:  </tr>
  115: </table><br />
  116: </body>
  117: </html>
  118: END_OF_BLOCK
  119: }
  120: 
  121: #-------------------------------
  122: # display_header
  123: #
  124: # Display the header information and set
  125: # up the HTML
  126: #-------------------------------
  127: 
  128: sub display_header{
  129:     my $html=&Apache::lonxml::xmlbegin();
  130:     my $bodytag=&Apache::loncommon::bodytag('Course Action Items');
  131:     return(<<ENDHEAD);
  132: $html
  133: <head>
  134: <title>Course Action Items</title>
  135: </head>
  136: $bodytag
  137: ENDHEAD
  138: }
  139: 
  140: #-------------------------------
  141: # display_actions_box
  142: #
  143: # Display the action items
  144: #
  145: #-------------------------------
  146:                                                                                 
  147: sub display_actions_box() {
  148:     my ($r,$command,$threshold_titles) = @_;
  149: 
  150:     my $rowColor1 = "#ffffff";
  151:     my $rowColor2 = "#eeeeee";
  152:     my $rowColor;
  153: 
  154:     my %unread = ();
  155:     my %ungraded = ();
  156:     my %bombed = ();
  157:     my %triggered = ();
  158:     my @newmsgs = ();
  159:     my @critmsgs = ();
  160:     my @newdiscussions = ();
  161:     my @tograde = ();
  162:     my @bombs = ();
  163:     my @warnings = ();
  164: 
  165:     my $domain=&Apache::loncommon::determinedomain();
  166:     my $function;
  167:     if ($env{'request.role'}=~/^(cc|in|ta|ep)/) {
  168:         $function='coordinator';
  169:     }
  170:     if ($env{'request.role'}=~/^(su|dc|ad|li)/) {
  171:         $function='admin';
  172:     }
  173: 
  174:     my %threshold = (
  175:                       av_attempts => 0,
  176:                       degdiff => 0.01,
  177:                       numstudents => 0,
  178:                      );
  179: 
  180:     my $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
  181:     my $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
  182: 
  183:     unless ($env{'request.course.id'}) {
  184:         $r->print('<br /><b><center>You are accessing an invalid course</center></b><br /><br />');
  185:         return;
  186:     }
  187: 
  188:     my $result;
  189:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  190:     my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
  191: 
  192:     if ($command eq 'reset') {
  193:         $result = &process_reset($cdom,$crs);
  194:     } elsif ($command eq 'update') {
  195:         $result = &process_update($cdom,$crs,$threshold_titles);
  196:     }
  197:     if ($result) {
  198:         $r->print($result.'<hr width="100%" />');
  199:     }
  200: 
  201:     &get_curr_thresholds(\%threshold,$cdom,$crs);
  202:     &getitems(\%unread,\%ungraded,\%bombed,\%triggered,\@newdiscussions,\@tograde,\@bombs,\@warnings,$rowColor1,$rowColor2,\%threshold,$cdom,$crs);
  203:     my ($msgcount,$critmsgcount) = &getmail(\@newmsgs,\@critmsgs);
  204: 
  205:     $r->print('<br /><table border="0" width="100%" cellpadding="2" cellspacing="4"><tr><td align="left" valign="top" width="45%">');
  206: 
  207: ## UNGRADED ITEMS ##
  208:     $r->print(<<END);
  209:            <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
  210:             <tr><td>
  211:              <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
  212:               <tr>
  213:                <td bgcolor="$tabbg"><b>Problems requiring handgrading</b></td></tr>
  214:                   <tr>
  215:                    <td bgcolor="#ffffff">
  216:                      <table cellpadding="2" cellspacing="0" border="0" width="100%">
  217: END
  218: 
  219:     if (@tograde > 0) {
  220:         $r->print('<tr bgcolor="#cccccc"><td><b><small>Problem Name</small></b></td><td align="right"><b><small>Number ungraded</small></b></td></tr>');
  221:         my $rowNum = 0;
  222:         foreach my $res (@tograde) {
  223:             if ($rowNum %2 == 1) {
  224:                 $rowColor = $rowColor1;
  225:             } else {
  226:                 $rowColor = $rowColor2;
  227:             }
  228:             my ($map,$id,$url)=&Apache::lonnet::decode_symb($res);
  229:             my $linkurl=&Apache::lonnet::clutter($url);
  230:             $linkurl .= '?symb='.&Apache::lonnet::escape($res);
  231: 
  232:             $r->print('<tr bgcolor="'.$rowColor.'"><td><a href="'.$linkurl.'"><small>'.$ungraded{$res}{title}.'</small></a></td><td align="right"><small>'.$ungraded{$res}{count}.'</small></td></tr>');
  233:             $rowNum ++;
  234:         }
  235:     } else {
  236:         $r->print('<tr><td bgcolor="#ffffff"><br><center><i><b><small>&nbsp;&nbsp;No problems require handgrading&nbsp;&nbsp;</small><br><br></b></i></td></tr>');
  237:     }
  238:     $r->print('</table></td></tr></table></td></tr></table><br />');
  239: 
  240: ## BOMBS ##
  241:      $r->print(<<"END");
  242:            <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
  243:             <tr>
  244:              <td>
  245:                <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
  246:                <tr>
  247:                 <td bgcolor="$tabbg"><b>Problems with errors</b></td>
  248:                </tr>
  249:                 <tr>
  250:                 <td bgcolor="#ffffff">
  251:                  <table width="100%" cellspacing="0" cellpadding="0" border="0">
  252: END
  253:      my $bombnum = 0;
  254:      if (@bombs > 0) {
  255:         $r->print('<tr bgcolor="#cccccc"><td><b><small>Resource</small></b></td><td align="right"><b><small>Number of errors</small></b></td></tr>');
  256: #        @bombs = sort { &cmp_title($a,$b) } @bombs;
  257:         foreach my $bomb (@bombs) {
  258:             if ($bombnum %2 == 1) {
  259:                  $rowColor = $rowColor1;
  260:             } else {
  261:                 $rowColor = $rowColor2;
  262:             }
  263:             $r->print('<tr bgcolor="'.$rowColor.'"><td><small>'.$bombed{$bomb}{errorlink}.'</small></td><td align="right"><small>'.$bombed{$bomb}{errorcount}.'</small></td></tr>');
  264:             $bombnum ++;
  265:         }
  266:     } else {
  267:         $r->print('<tr><td bgcolor="#ffffff"><br /><center><b><i><small>No problems with errors</small></i></b></center><br /></td></tr>');
  268:     }
  269:     $r->print('</table></td></tr></table></td></tr></table><br />');
  270: 
  271: # DEGDIFF AND AV. TRIES TRIGGERS
  272:     $r->print(<<"END");
  273:            <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
  274:             <tr>
  275:              <td>
  276:                <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
  277:                <tr>
  278:                 <td bgcolor="$tabbg"><b>Problems with av. attempts &ge; $threshold{'av_attempts'} or deg. difficulty &ge; $threshold{'degdiff'}<br /> and total number of students with submissions &ge; $threshold{'numstudents'}</b></td>
  279:                </tr>
  280:                <tr>
  281:                 <td bgcolor="$tabbg" align="right"><a href="/adm/whatsnew?command=chgthreshold"><b><small>Change thresholds?</small></b></a></td>
  282:                </tr>
  283:                 <tr>
  284:                 <td bgcolor="#ffffff">
  285:                  <table width="100%" cellspacing="0" cellpadding="0" border="0">
  286: END
  287:     my $warningnum = 0;
  288:     if (@warnings > 0) {
  289: #        @warnings = sort { &cmp_title($a,$b) } @warnings;
  290:         $r->print('<form name="reset_tracking" method="post">'.
  291:                  '  <input type="hidden" name="action" value="reset"'."\n");
  292:         $r->print('<tr bgcolor="#cccccc"><td><b><small>Resource</small></b></td><td align="right"><b><small>Part</small></b></td><td align="right"><b><small>Num. students</small></b></td><td align="right"><b><small>Av. Attempts</small></b></td><td align="right"><b><small>Deg. Diff</small></b></td><td align="right"><b><small>Last Reset</small></b></td><td align="right"><b><small>Reset Count?</small></b></td></tr>');
  293:         foreach my $res (@warnings) {
  294:             if ($warningnum %2 == 1) {
  295:                 $rowColor = $rowColor1;
  296:             } else {
  297:                 $rowColor = $rowColor2;
  298:             }
  299:             my ($map,$id,$url)=&Apache::lonnet::decode_symb($res);
  300:             my $linkurl=&Apache::lonnet::clutter($url);
  301:             my $rowspan;
  302:             if ($triggered{$res}{numparts} > 1) {
  303:                 $rowspan = 'rowspan="'.$triggered{$res}{numparts}.'"';
  304:             }
  305:             $linkurl .= '?symb='.&Apache::lonnet::escape($res);
  306:             $r->print('<tr bgcolor="'.$rowColor.'"><td '.$rowspan.'><a href="'.$linkurl.'"><small>'.$triggered{$res}{title}.'</small></a></td>'.$triggered{$res}{text});
  307:             $warningnum ++;
  308:         }
  309:         $r->print('<tr bgcolor="#cccccc"><td colspan="7" align="right"><br /><b><small><input type="submit" name="counters" value="Reset counters to 0" /></form>'); 
  310:     } else {
  311:         $r->print('<tr><td bgcolor="#ffffff"><br /><center><b><i><small>No problems satisfy threshold criteria.</small></i></b></center><br /></td></tr>');
  312:     }
  313:     $r->print('</table></td></tr></table></td></tr></table><br />');
  314: 
  315:     $r->print('</td><td width="5%">&nbsp;</td><td align="left" valign="top" width-"50%">');
  316: 
  317: ## UNREAD COURSE DISCUSSION POSTS ##
  318:     $r->print(<<"END");
  319:               <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
  320:                <tr><td>
  321:                 <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
  322:                  <tr>
  323:                   <td bgcolor="$tabbg"><b>Unread course discussion posts</b></td>
  324:                  </tr>
  325:                  <tr>
  326:                    <td bgcolor="#ffffff">
  327:                    <table cellpadding="2" cellspacing="0" border="0" width="100%">
  328: END
  329:                                                                                   
  330:     if (@newdiscussions > 0) {
  331:         $r->print('<tr bgcolor="#cccccc"><td><b><small>Location</small></b></td><td><b><small>Type</small></b><td align="right"><b><small>Number of new posts</small></b></td></tr>');
  332: #        @newdiscussions = sort { &cmp_title($a,$b) } @newdiscussions;
  333:         my $rowNum = 0;
  334:         foreach my $ressymb (@newdiscussions) {
  335:             my $forum_title = $unread{$ressymb}{'title'};
  336:             my $type = 'Resource';
  337:             my $feedurl=&Apache::lonfeedback::get_feedurl($ressymb);
  338:             if ($feedurl =~ /bulletinboard/) {
  339:                 $type = 'Bulletin Board';
  340:             }
  341:             my $unreadnum = keys(%{$unread{$ressymb}});
  342:             $unreadnum = $unreadnum - 2;
  343:             if ($unreadnum > 0) {
  344:                 if ($rowNum %2 == 1) {
  345:                     $rowColor = $rowColor1;
  346:                 } else {
  347:                     $rowColor = $rowColor2;
  348:                 }
  349:                 $r->print('<tr bgcolor="'.$rowColor.'"><td><small><a href="'.$feedurl.'?symb='.$unread{$ressymb}{symb}.'">'.$forum_title.'</a>&nbsp;</td><td><small>'.$type.'</small></td><td align="right">'.$unreadnum.'&nbsp;</td></tr>');
  350:                 $rowNum ++;
  351:             }
  352:         }
  353:     } else {
  354:         $r->print('<tr><td bgcolor="#ffffff"><br><center>&nbsp;<i><b><small>No unread posts in course discussions</small></b></i><br><br></td></tr>');
  355:     }
  356:     $r->print('</table></td></tr></table></td></tr></table><br />');
  357: 
  358: ## MESSAGES ##
  359:     $r->print(<<END);
  360:            <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
  361:             <tr>
  362:              <td>
  363:               <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
  364:                <tr>
  365:                 <td bgcolor="$tabbg"><b>New course messages</b></td>
  366:                </tr>
  367:                <tr>
  368:                 <td bgcolor="#ffffff">
  369:                  <table width="100%" cellspacing="0" cellpadding="0" border="0">
  370: END
  371:     if ($msgcount > 0) {
  372:         $r->print('<tr bgcolor="#cccccc"><td><b><small>'.&mt('Number').'</small></b></td><td><b><small>'.&mt('Subject').'</small></b></td><td><b><small>'.&mt('Sender').'</small></b></td><td><b><small>'.&mt('Date/Time').'</small></b></td></tr>');
  373:         my $rowNum = 0;
  374:         my $mailcount = 1; 
  375:         foreach my $msg (@newmsgs) {
  376:             if ($rowNum %2 == 1) {
  377:                 $rowColor = $rowColor1;
  378:             } else {
  379:                 $rowColor = $rowColor2;
  380:             }
  381:             $r->print('<tr bgcolor="'.$rowColor.'"><td valign="top"><small>'.$mailcount.'. &nbsp;<small></td><td valign="top"><small><a href="/adm/mail?">'.$msg->{'shortsub'}.'</a>&nbsp; &nbsp;</small></td><td valign="top"><small>&nbsp;'.$msg->{'from'}.'@'.$msg->{'fromdom'}.'&nbsp;</small></td><td valign="top"><small>'.$msg->{'sendtime'}.'</small></td></tr>');
  382:             $rowNum ++;
  383:             $mailcount ++;
  384:         }
  385:     } else {
  386:         $r->print('<tr><td bgcolor="#ffffff" width="100%"><center><br /><b><i><small>No new course messages</small></i></b><br /><br /></center></td></tr>');
  387:     }
  388: 
  389:     $r->print('</table></td></tr></table></td></tr></table><br />');
  390: 
  391:     $r->print(<<END);
  392:            <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
  393:             <tr>
  394:              <td>
  395:               <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
  396:                <tr>
  397:                 <td bgcolor="$tabbg"><b>New critical messages in course</b></td>
  398:                </tr>
  399:                <tr>                 <td bgcolor="#ffffff">
  400:                  <table width="100%" cellspacing="0" cellpadding="0" border="0">
  401: END
  402: 
  403:     if ($critmsgcount > 0) {
  404:         $r->print('<tr bgcolor="#cccccc"><td><b><small>Number</small></b></td><td><b><small>Subject</small></b></td><td><b><small>Sender</small></b></td><td><b><small>Date/Time</small></b></td></tr>');
  405:         my $rowNum = 0;
  406:         my $mailcount = 1;
  407:         foreach my $msg (@critmsgs) {
  408:             if ($rowNum %2 == 1) {
  409:                 $rowColor = $rowColor1;
  410:             } else {
  411:                 $rowColor = $rowColor2;
  412:             }
  413:             $r->print('<tr bgcolor="'.$rowColor.'"><td valign="top"><small>'.$mailcount.'. &nbsp;<small></td><td valign="top"><small><a href="/adm/mail?">'.$msg->{'shortsub'}.'</a>&nbsp; &nbsp;</small></td><td valign="top"><small>&nbsp;'.$msg->{'from'}.'@'.$msg->{'fromdom'}.'&nbsp;</small></td><td valign="top"><small>'.$msg->{'sendtime'}.'</small></td></tr>');
  414:             $rowNum ++;
  415:             $mailcount ++;
  416:         }
  417:     } else {
  418:         $r->print('<tr><td bgcolor="#ffffff" width="100%"><center><br /><b><i><small>No unread critical messages in course</small></i></b><br /><br /></center></td></tr>');
  419:     }
  420:                                                                                
  421:     $r->print('</table></td></tr></table></td></tr></table><br />');
  422: 
  423:     $r->print('
  424:            </table>
  425:           </td>
  426:          </tr>
  427:         </table>');
  428:     $r->print('</td></tr></table>');
  429: }
  430: 
  431: #-------------------------------
  432: # display_config_box
  433: #
  434: # Display the threshold setting screen 
  435: #
  436: #-------------------------------
  437:                                                                                 
  438: sub display_config_box() {
  439:     my ($r,$command,$tabbg,$threshold_titles) = @_;
  440:     my %threshold = ();
  441:     my $rowColor1 = "#ffffff";
  442:     my $rowColor2 = "#eeeeee";
  443:     my $rowColor;
  444: 
  445:     my @thresholditems = ("av_attempts","degdiff","numstudents");
  446:     my %threshold_titles = (
  447:                          av_attempts => 'Average number of attempts',
  448:                          degdiff => 'Degree of difficulty',
  449:                          numstudents => 'Total number of students with submissions',
  450:                          );
  451:     &get_curr_thresholds(\%threshold);
  452: 
  453:     $r->print('<br /><form name="thresholdform" method="post"><table border="0" cellpadding="2" cellspacing="4"><tr><td align="left" valign="top" width="45%">
  454:            <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000">
  455:             <tr>
  456:              <td>
  457:                <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000">
  458:                 <tr>
  459:                 <td bgcolor="#ffffff">
  460:                  <table cellspacing="0" cellpadding="4" border="0">
  461:      <tr bgcolor="'.$tabbg.'">
  462:       <th>Threshold Name</th>
  463:       <th>Current value</th>
  464:       <th>Change?</th>
  465:      </tr>');
  466:     my $rowNum =0;
  467:     foreach my $type (@thresholditems) {
  468:         my $parameter = 'internal.threshold_'.$type;
  469: # onchange is javascript to automatically check the 'Set' button.
  470:         my $onchange = 'onFocus="javascript:window.document.forms'.
  471:               "['thresholdform'].elements['".$parameter."_setparmval']".
  472:               '.checked=true;"';
  473:         if ($rowNum %2 == 1) {
  474:             $rowColor = $rowColor1;
  475:         } else {
  476:             $rowColor = $rowColor2;
  477:         }
  478:         $r->print('
  479:      <tr bgcolor="'.$rowColor.'">
  480:       <td>'.$threshold_titles{$type}.'</td>
  481:       <td>'.&Apache::lonhtmlcommon::textbox($parameter.'_value',
  482:                                             $threshold{$type},
  483:                                             10,$onchange).'</td>
  484:       <td>'
  485:            .&Apache::lonhtmlcommon::checkbox($parameter.'_setparmval').
  486:       '</td>
  487:      </tr>');
  488:         $rowNum ++;
  489:     }
  490:     $r->print('</table></td></tr></table></td></tr></table>
  491:            <br /><input type="submit" name="threshold" value="Make changes" />
  492:                  <input type="hidden" name="action" value="update" />
  493:                </form>');
  494: }
  495: 
  496: sub getitems {
  497:     my ($unread,$ungraded,$bombed,$triggered,$newdiscussions,$tograde,$bombs,$warnings,$rowColor1,$rowColor2,$threshold,$cdom,$crs) = @_;
  498:     my $navmap = Apache::lonnavmaps::navmap->new();
  499:     my @allres=$navmap->retrieveResources();
  500:     my %discussiontime = &Apache::lonnet::dump('discussiontimes',$cdom,$crs);
  501:     my %lastread = &Apache::lonnet::dump('nohist_'.$env{'request.course.id'}.
  502:                 '_discuss',$env{'user.domain'},$env{'user.name'},'lastread');
  503:     my %lastreadtime = ();
  504:     my @discussions = ();
  505:     my ($classlist,$keylist) = &Apache::loncoursedata::get_classlist();
  506: 
  507:     my %resourcetracker =  &Apache::lonnet::dump('nohist_resourcetracker',
  508:                $cdom,$crs);
  509:     my %res_title;
  510:     my $warningnum = 0;
  511:     foreach my $key (keys(%lastread)) {
  512:         my $newkey = $key;
  513:         $newkey =~ s/_lastread$//;
  514:         $lastreadtime{$newkey} = $lastread{$key};
  515:     }
  516:     foreach my $resource (@allres) {
  517:         my $result = '';
  518:         my $applies = 0;
  519:         my $symb = $resource->symb();
  520: #        %{$$bombed{$symb}} = ();
  521:         %{$$ungraded{$symb}} = ();
  522:         %{$$triggered{$symb}} = ();
  523:         $$triggered{$symb}{numparts} = 0;
  524:         my $title = $resource->compTitle();
  525:         $res_title{$symb} = $title;
  526:         my $ressymb = $resource->wrap_symb();
  527: # Check for unread discussion postings
  528:         if (defined($discussiontime{$ressymb})) {
  529:             push(@discussions,$ressymb);
  530:             my $prevread = 0;
  531:             my $unreadcount = 0;
  532:             %{$$unread{$ressymb}} = ();
  533:             $$unread{$ressymb}{'title'} = $title;
  534:             $$unread{$ressymb}{'symb'} = $symb;
  535:             if (defined($lastreadtime{$ressymb})) {
  536:                 $prevread = $lastreadtime{$ressymb};
  537:             }
  538:             my %contrib = &Apache::lonnet::restore($ressymb,
  539:                              $env{'request.course.id'},$cdom,$crs);
  540:             if ($contrib{'version'}) {
  541:                 for (my $id=1;$id<=$contrib{'version'};$id++) {
  542:                     unless (($contrib{'hidden'}=~/\.$id\./) || ($contrib{'deleted'}=~/\.$id\./)) {
  543:                         if ($prevread <$contrib{$id.':timestamp'}) {
  544:                             $$unread{$ressymb}{$unreadcount} = $id.': '.$contrib{$id.':subject'};
  545:                             $unreadcount ++;
  546:                         }
  547:                     }
  548:                 }
  549:             }
  550:             if ($unreadcount) { push(@{$newdiscussions}, $ressymb); }
  551: 	}
  552: 
  553: # Check for ungraded problems
  554:         if ($resource->is_problem()) {
  555:             my $ctr = 0;
  556:             my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
  557:             my ($partlist,$handgrade,$responseType) = &Apache::grades::response_type($url,$symb);
  558:             foreach my $student (keys(%$classlist)) {
  559:                 my ($uname,$udom) = split(/:/,$student);
  560:                 my %status=&Apache::grades::student_gradeStatus($url,$symb,$udom,$uname,$partlist);
  561:                 my $submitted = 0;
  562:                 my $ungraded = 0;
  563:                 foreach (keys(%status)) {
  564:                     $submitted = 1 if ($status{$_} ne 'nothing');
  565:                     $ungraded = 1 if ($status{$_} =~ /^ungraded/);
  566:                     my ($foo,$partid,$foo1) = split(/\./,$_);
  567:                     if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
  568:                         $submitted = 0;
  569:                     }
  570:                 }
  571:                 next if (!$submitted || !$ungraded);
  572:                 $ctr ++;
  573:             }
  574:             if ($ctr) {
  575:                 $$ungraded{$symb}{count} = $ctr;
  576:                 $$ungraded{$symb}{title} = $title;
  577:                 push(@{$tograde}, $symb);
  578:             }
  579:         }
  580: 
  581: # Check for bombs
  582:         if ($resource->getErrors()) {
  583:             my $errors = $resource->getErrors();
  584:             $errors =~ s/^,//;
  585:             my @bombs = split(/,/, $errors);
  586:             my $errorcount = scalar(@bombs);
  587:             my $errorlink = '<a href="/adm/email?display='.
  588:                             &Apache::lonnet::escape($bombs[0]).'">'.
  589:                             $title.'</a>';
  590:             $$bombed{$symb}{errorcount} = $errorcount;
  591:             $$bombed{$symb}{errorlink} = $errorlink;
  592:             push(@{$bombs}, $symb);
  593:         }
  594: # Compile maxtries and degree of difficulty for problem parts
  595:         my @parts = @{$resource->parts()};
  596:         my %stats;
  597:         my %lastreset = ();
  598:         my $warning = 0;
  599:         my $rowColor;
  600:         foreach my $part (@parts) {
  601:             %{$stats{$part}} = ();
  602:             my ($attempts,$users,$corrects,$degdiff,$av_attempts);
  603:             if (exists($resourcetracker{$symb."\0".$part."\0attempts"})) {
  604:                 $attempts = $resourcetracker{$symb."\0".$part."\0attempts"};
  605:             }
  606:             if (exists($resourcetracker{$symb."\0".$part."\0users"})) {
  607:                 $users = $resourcetracker{$symb."\0".$part."\0users"};
  608:             }
  609:             if (exists($resourcetracker{$symb."\0".$part."\0correct"})) {
  610:                 $corrects = $resourcetracker{$symb."\0".$part."\0correct"};
  611:             }
  612:             if ($attempts > 0) {
  613:                 $degdiff =  1 - ($corrects/$attempts);
  614:                 $degdiff = sprintf("%.2f",$degdiff);
  615:             }
  616:             if ($users > 0) {
  617:                 $av_attempts = $attempts/$users;
  618:             }
  619:             if ((($degdiff ne '' && $degdiff >= $$threshold{'degdiff'}) || ($av_attempts ne '' && $av_attempts >= $$threshold{'av_attempts'})) && ($users >= $$threshold{'numstudents'})) {
  620:                 $stats{$part}{degdiff} = $degdiff;
  621:                 $stats{$part}{attempts} = $av_attempts;
  622:                 $stats{$part}{users} = $users;
  623:                 my %resethash = &Apache::lonnet::restore($symb,'nohist_resourcetracker',$cdom,$crs);
  624:                 $lastreset{$part} = &get_counter_resets(\%resethash,$part);
  625:                 $warning = 1;
  626:             }
  627:         }
  628:         if ($warning) {
  629:             if ($warningnum %2 == 1) {
  630:                 $rowColor = $rowColor1;
  631:             } else {
  632:                 $rowColor = $rowColor2;
  633:             }
  634:             $$triggered{$symb}{title} = $resource->title;
  635:             foreach my $part (@parts) {
  636:                 if (exists($stats{$part}{users})) {
  637:                     my $resetname = 'reset_'.&Apache::lonnet::escape($symb."\0".$part);
  638:                     my $resettitle = 'title_'.&Apache::lonnet::escape($symb."\0".$part);
  639:                     if ($$triggered{$symb}{numparts}) {
  640:                         $$triggered{$symb}{text} .= '<tr bgcolor="'.$rowColor.'">'."\n";
  641:                     }
  642:                     if (@parts > 1) {
  643:                         $$triggered{$symb}{text} .= '
  644:                          <td align="right"><small>part - '.$part.'<small></td>';
  645:                     } else {
  646:                         $$triggered{$symb}{text} .= '
  647:                          <td align="right"><small>single part</small></td>';
  648:                     }
  649:                     $$triggered{$symb}{text} .= '
  650:                          <td align="right"><small>'.$stats{$part}{users}.'</small></td>
  651:                          <td align="right"><small>'.$stats{$part}{attempts}.'</small></td>
  652:                          <td align="right"><small>'.$stats{$part}{degdiff}.'</small></td>
  653:                          <td align="right"><small>'.$lastreset{$part}.'</small></td>
  654:                          <td align="right"><small><input type="checkbox" name="'.$resetname.'" /><input type="hidden" name="'.$resettitle.'" value="'.&Apache::lonnet::escape($$triggered{$symb}{title}).'" /></td> 
  655:                         </tr>';
  656:                     $$triggered{$symb}{numparts} ++;
  657:                 }
  658:             }
  659:             push(@{$warnings},$symb);
  660:             $warningnum ++;
  661:         }
  662:     }
  663: }
  664: 
  665: sub get_counter_resets {
  666:     my ($resethash,$part) = @_;
  667:     my $lastreset = 'None';
  668:     if ($$resethash{'version'}) {
  669:         for (my $version=1;$version<=$$resethash{'version'};$version++) {
  670:             if (exists($$resethash{$version.':'.$part.'prev_attempts'})) {
  671:                  $lastreset = $$resethash{$version.':timestamp'};
  672:             }
  673:         }
  674:     }
  675:     unless ($lastreset eq 'None') {
  676:         $lastreset = localtime($lastreset);
  677:     }
  678:     return $lastreset;
  679: }
  680: 
  681: sub get_curr_thresholds {
  682:     my ($threshold,$cdom,$crs) = @_;
  683:     my %coursesettings = &Apache::lonnet::dump('environment',
  684:                                      $cdom,$crs,'internal.threshold');
  685:     if (exists($coursesettings{'internal.threshold_av_attempts'})) {
  686:         $$threshold{'av_attempts'} = $coursesettings{'internal.threshold_av_attempts'};
  687:     }
  688:     if (exists($coursesettings{'internal.threshold_degdiff'})) {
  689:         $$threshold{'degdiff'} = $coursesettings{'internal.threshold_degdiff'};
  690:     }
  691:     if (exists($coursesettings{'internal.threshold_numstudents'})) {
  692:         $$threshold{'numstudents'} = $coursesettings{'internal.threshold_numstudents'};
  693:     }
  694: }
  695: 
  696: sub process_reset {
  697:     my ($dom,$crs) = @_;
  698:     my $result = '<b>Counters reset for following problems (and parts):</b><br />';
  699:     my @agg_types = ('attempts','users','correct');
  700:     my %agg_titles = (
  701:                      attempts => 'Number of submissions',
  702:                      users => 'Students with submissions',
  703:                      correct => 'Number of correct submissions',
  704:                      );
  705:     my @resets = ();
  706:     my %titles = ();
  707:     foreach my $key (keys %env) {
  708:         next if ($key !~ /^form\.reset_(.+)$/);
  709:         my $title = &Apache::lonnet::unescape($env{'form.title_'.$1});
  710:         my $reset_item = &Apache::lonnet::unescape($1);
  711:         my %curr_aggregates = &Apache::lonnet::dump('nohist_resourcetracker',$dom,$crs,$reset_item);
  712:         my %resethash = ();
  713:         my %aggregates = ();
  714:         my ($symb,$part) = split/\0/,$reset_item;
  715:         foreach my $type (@agg_types) {
  716:             $aggregates{$reset_item."\0".$type} = 0;
  717:             $resethash{$part."\0".'prev_'.$type} = $curr_aggregates{$reset_item."\0".$type};
  718:         }  
  719:         my $putresult = &Apache::lonnet::put('nohist_resourcetracker',\%aggregates,
  720:                           $dom,$crs);
  721:         if ($putresult eq 'ok') {
  722:             my $storeresult = &Apache::lonnet::cstore(\%resethash,$symb,'nohist_resourcetracker',$dom,$crs);
  723:             $result .= $title.' -part '.$part.': ';
  724:             my %new_aggregates = &Apache::lonnet::dump('nohist_resourcetracker',$dom,$crs,$reset_item);
  725:             foreach my $type (@agg_types) {
  726:                 $result .= $agg_titles{$type}.' = '.$new_aggregates{$reset_item."\0".$type}.'; ';
  727:             }
  728:             $result =~ s/; $//;
  729:             $result .= '<br />';
  730:         } else {
  731:             $result = $title.' -part '.$part.': '.&mt('Unable to reset counters to zero due to ').$putresult.'.<br />'."\n";
  732:         }
  733:     }
  734:     return $result;
  735: }
  736: 
  737: sub process_update {
  738:     my ($dom,$crs,$threshold_titles) = @_;
  739:     my $setoutput = '<b>Changes to threshold(s):</b><br />';
  740:     foreach (keys %env) {
  741:         next if ($_!~/^form\.(.+)\_setparmval$/);
  742:         my $name  = $1;
  743:         my $value = $env{'form.'.$name.'_value'};
  744:         if ($name && defined($value)) {
  745:             my $put_result = &Apache::lonnet::put('environment',
  746:                                                   {$name=>$value},$dom,$crs);
  747:            
  748:             my ($shortname) = ($name =~ /^internal\.threshold_(.+)$/); 
  749:             if ($put_result eq 'ok') {
  750:                 $setoutput.=&mt('Set threshold for').' <b>'.$$threshold_titles{$shortname}.'</b> '.&mt('to').' <b>'.$value.'</b>.<br />';
  751:             } else {
  752:                 $setoutput.=&mt('Unable to set threshold for').' <b>'.$name.'</b> '.&mt('to').
  753:                     ' <b>'.$value.'</b> '.&mt('due to').' '.$put_result.'.<br />';
  754:             }
  755:         }
  756:     }
  757:     return $setoutput;
  758: }
  759: 
  760: sub getmail {
  761:     my ($newmsgs,$critmsgs) = @_;
  762: # Check for unread mail in course
  763:     my $msgcount = 0;
  764: 
  765:     my @messages = sort(&Apache::lonnet::getkeys('nohist_email'));
  766:     foreach my $message (@messages) {
  767: 	my $msgid=&Apache::lonnet::escape($message);
  768:         my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
  769:             &Apache::lonmsg::unpackmsgid($msgid);
  770:         if (($fromcid) && ($fromcid eq $env{'request.course.id'})) {
  771:             if (defined($sendtime) && $sendtime!~/error/) {
  772:                 my $numsendtime = $sendtime;
  773:                 $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
  774:                 if ($status eq 'new') {
  775:                     $msgcount ++;
  776:                     if ($shortsubj eq '') {
  777:                         $shortsubj = &mt('No subject');
  778:                     }
  779:                     $shortsubj = &Apache::lonnet::unescape($shortsubj);
  780:                     push(@{$newmsgs}, {
  781:                         msgid    => $msgid,
  782:                         sendtime => $sendtime,
  783:                         shortsub => $shortsubj,
  784:                         from     => $fromname,
  785:                         fromdom  => $fromdom
  786:                         });
  787:                 }
  788:             }
  789:         }
  790:     }
  791: 
  792: # Check for critical messages in course
  793:     my %what=&Apache::lonnet::dump('critical');
  794:     my $result = '';
  795:     my $critmsgcount = 0;
  796:     foreach my $msgid (sort(keys(%what))) {
  797:         my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
  798:             &Apache::lonmsg::unpackmsgid($msgid);
  799:         if (($fromcid) && ($fromcid eq  $env{'request.course.id'})) {
  800:             if (defined($sendtime) && $sendtime!~/error/) {
  801:                 my $numsendtime = $sendtime;
  802:                 $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
  803:                 $critmsgcount ++;
  804:                 if ($shortsubj eq '') {
  805:                     $shortsubj = &mt('No subject');
  806:                 }
  807:                 $shortsubj = &Apache::lonnet::unescape($shortsubj);
  808:                 push(@{$critmsgs}, {
  809:                         msgid    => $msgid,
  810:                         sendtime => $sendtime,
  811:                         shortsub => $shortsubj,
  812:                         from     => $fromname,
  813:                         fromdom  => $fromdom
  814:                         });
  815:             }
  816:         }
  817:     }
  818:     return ($msgcount,$critmsgcount);
  819: }
  820: 
  821: sub cmp_title {
  822:     my ($atitle,$btitle) = (lc($_[0]->compTitle),lc($_[1]->compTitle));
  823:     $atitle=~s/^\s*//;
  824:     $btitle=~s/^\s*//;
  825:     return $atitle cmp $btitle;
  826: }
  827: 
  828: 1;

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