File:  [LON-CAPA] / loncom / interface / lonwhatsnew.pm
Revision 1.97: download - view: text, annotated - select for diffs
Thu Nov 19 14:05:46 2009 UTC (14 years, 7 months ago) by bisitz
Branches: MAIN
CVS tags: HEAD
- Moved What's-New-Page header into head_subbox
- Added error style to error message
- Smaller appearance: Replaced link style "larger" by "bold"

    1: #
    2: # $Id: lonwhatsnew.pm,v 1.97 2009/11/19 14:05:46 bisitz 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::lonuserstate;
   39: use Apache::lonuserutils; 
   40: use Apache::Constants qw(:common :http);
   41: use Time::Local;
   42: use GDBM_File;
   43: use lib '/home/httpd/lib/perl/';
   44: use LONCAPA;
   45: 
   46: #----------------------------
   47: # handler
   48: #
   49: #----------------------------
   50: 
   51: sub handler {
   52:     my $r = shift;
   53:     if ($r->header_only) {
   54:         &Apache::loncommon::content_type($r,'text/html');
   55:         $r->send_http_header;
   56:         return OK;
   57:     }
   58:     &Apache::loncommon::get_unprocessed_cgi(
   59:                                    $ENV{'QUERY_STRING'},['command','refpage']);
   60: 
   61:     my $command = $env{'form.command'};
   62:     my $refpage = $env{'form.refpage'};
   63: 
   64:     my %checkallowed = ( coursenormalmail => 1,
   65: 			 coursecritmail => 1, );
   66:     foreach my $perm_check (['whn','whatsnew',1],
   67: 			    ['pch','coursediscussion',1],
   68: 			    ['mgr','handgrading',1],
   69: 			    ['vgr','abovethreshold',1],
   70: 			    ['opa','haserrors',1],
   71: 			    ['mdc','versionchanges',0],
   72:                             ['vcl','newroles',1],
   73:                             ['vcl','oldroles',1],
   74: 			    ) {
   75: 	my ($perm,$key,$check_section) = @{ $perm_check };
   76: 	my $scope = $env{'request.course.id'};
   77: 	if (!($checkallowed{$key} = &Apache::lonnet::allowed($perm,$scope))) {
   78: 	    $scope .= '/'.$env{'request.course.sec'};
   79: 	    if ( $check_section ) {
   80: 		$checkallowed{$key} = &Apache::lonnet::allowed($perm,$scope);
   81: 	    }
   82: 	    if ($checkallowed{$key}) {
   83: 		$checkallowed{$key.'_section'} = $env{'request.course.sec'};
   84: 	    }
   85: 	}
   86:     }
   87: 
   88:     if ( ! $env{'request.course.fn'} || ! $checkallowed{'whatsnew'}) {
   89:         # Not in a course, or no whn priv in course
   90:         $env{'user.error.msg'}="/adm/whatsnew::whn:0:0:Cannot display what's new page";
   91:         return HTTP_NOT_ACCEPTABLE;
   92:     }
   93: 
   94:     &Apache::loncommon::content_type($r,'text/html');
   95:     $r->send_http_header;
   96: 
   97:     $r->print(&display_header($command,\%checkallowed));
   98: 
   99:     &Apache::lonhtmlcommon::clear_breadcrumbs();
  100:     &Apache::lonhtmlcommon::add_breadcrumb
  101:             ({href=>'/adm/whatsnew',
  102:               text=>"What's New?"});
  103:     if (($command eq 'chgthreshold') && $checkallowed{'abovethreshold'}) {
  104:         &Apache::lonhtmlcommon::add_breadcrumb
  105:             ({href=>'/adm/whatsnew?command=chgthreshold&refpage='.$refpage,
  106:               text=>"Change thresholds"});
  107:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
  108:             ("What's New?",#'Course_Action_Items_Thresholds'
  109: 	     ));
  110:     } elsif (($command eq 'chginterval') && $checkallowed{'versionchanges'} ) {
  111:         &Apache::lonhtmlcommon::add_breadcrumb
  112:             ({href=>'/adm/whatsnew?command=chginterval&refpage='.$refpage,
  113:               text=>"Change interval"});
  114:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
  115:             ("What's New?",#'Course_Action_Items_Intervals'
  116: 	     ));
  117:     } elsif (($command eq 'chgdisc') && $checkallowed{'coursediscussion'}) {
  118:         &Apache::lonhtmlcommon::add_breadcrumb
  119:             ({href=>'/adm/whatsnew?command=chgdisc&refpage='.$refpage,
  120:               text=>"Change discussion display"});
  121:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
  122:             ("What's New?",#'Course_Action_Items_Intervals'
  123: 	     ));
  124:     } elsif ($command eq 'courseinit') {
  125:         &Apache::lonhtmlcommon::add_breadcrumb
  126:             ({href=>'/adm/whatsnew?command=courseinit&refpage='.$refpage,
  127:               text=>"Course initialization preference"});
  128:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
  129:             ("What's New?",#'Course_Action_Items_Initialization'
  130: 	     ));
  131:     } elsif ($command eq 'chgoldroleinterval' && $checkallowed{'oldroles'}) {
  132:         &Apache::lonhtmlcommon::add_breadcrumb
  133:             ({href=>'/adm/whatsnew?command=chgoldroleinterval&refpage='.$refpage,
  134:               text=>"Change interval"});
  135:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
  136:             ("What's New?",#'Course_Action_Items_Intervals'
  137:              ));
  138:     } elsif ($command eq 'chgnewroleinterval' && $checkallowed{'newroles'}) {
  139:         &Apache::lonhtmlcommon::add_breadcrumb
  140:             ({href=>'/adm/whatsnew?command=chgnewroleinterval&refpage='.$refpage,
  141:               text=>"Change interval"});
  142:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
  143:             ("What's New?",#'Course_Action_Items_Intervals'
  144:              ));
  145:     } else {
  146:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
  147:             ("What's New?",#'Course_Action_Items_Display'
  148: 	     ));
  149:     }
  150:     &display_main_box($r,$command,$refpage,\%checkallowed);
  151:     return OK;
  152: }
  153: 
  154: #------------------------------
  155: # display_main_box
  156: #
  157: # Display all the elements within the main box
  158: #------------------------------
  159:                                                                                 
  160: sub display_main_box {
  161:     my ($r,$command,$refpage,$checkallowed) = @_;
  162:     my $domain=&Apache::loncommon::determinedomain();
  163:     my $function = &Apache::loncommon::get_users_function();
  164:     my $lctype = lc(&Apache::loncommon::course_type());
  165:     $r->print('<table width="100%" border="0" cellpadding="5" cellspacing="0"><tr><td width="100%">');
  166: 
  167:     my %threshold_titles = &Apache::lonlocal::texthash (
  168:                          av_attempts => 'Average number of attempts',
  169:                          degdiff => 'Degree of difficulty',
  170:                          numstudents => 'Total number of students with submissions',
  171:     );
  172:     my %versions = (
  173:                        -1 => "version changes since start of $lctype",
  174:                   2592000 => 'version changes since last month',
  175:                    604800 => 'version changes since last week',
  176:                     86400 => 'version changes since yesterday',
  177:                    );
  178:     my %newroles = (
  179:                        -1 => "roles which have become active since start of $lctype",
  180:                   2592000 => 'roles which have become active since last month',
  181:                    604800 => 'roles which have become active since last week',
  182:                     86400 => 'roles which have become active since yesterday',
  183:                    );
  184:     my %oldroles = (
  185:                        -1 => "roles which expired since start of $lctype",
  186:                   2592000 => 'roles which expired since last month',
  187:                    604800 => 'roles which expired since last week',
  188:                     86400 => 'roles which expired since yesterday',
  189:                    );
  190:     my %interval_titles = (
  191:         versions => \%versions,
  192:         newroles => \%newroles,
  193:         oldroles => \%oldroles,
  194:     );
  195:     my %initpage = &Apache::lonlocal::texthash (
  196:                      firstres => "first resource in the $lctype",
  197:                      whatsnew => "What's New Page",
  198:                      userpref => 'your general user preferences',
  199:                      coursespecific => "specific setting for this $lctype",
  200:                    );
  201:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  202:     my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
  203: 
  204:     if (($command eq 'chgthreshold') 
  205: 	&& $checkallowed->{'abovethreshold'}) {
  206:         &display_threshold_config($r,$refpage,\%threshold_titles,
  207:                                                                    $cdom,$crs);
  208:     } elsif (($command eq 'chginterval') 
  209: 	     && $checkallowed->{'versionchanges'}) {
  210:         &display_interval_config($r,$refpage,\%interval_titles,'versions');
  211:     } elsif (($command eq 'chgdisc') 
  212: 	     && $checkallowed->{'coursediscussion'}) {
  213:         &display_discussion_config($r,$refpage);
  214:     } elsif ($command eq 'courseinit') {
  215:         &courseinit_config($r,$refpage,\%initpage);
  216:     } elsif (($command eq 'chgnewroleinterval')
  217:              && $checkallowed->{'newroles'}) {
  218:         &display_interval_config($r,$refpage,\%interval_titles,'newroles');
  219:     } elsif (($command eq 'chgoldroleinterval')
  220:              && $checkallowed->{'oldroles'}) {
  221:         &display_interval_config($r,$refpage,\%interval_titles,'oldroles');
  222:     } else {
  223:         &display_actions_box($r,$command,$refpage,\%threshold_titles,
  224:                         \%interval_titles,\%initpage,$cdom,$crs,$checkallowed);
  225:     }
  226:     my $end_page = &Apache::loncommon::end_page();
  227:     $r->print(<<END_OF_BLOCK);
  228:   </td>
  229:  </tr>
  230: </table><br />
  231: $end_page
  232: END_OF_BLOCK
  233: }
  234: 
  235: #-------------------------------
  236: # display_header
  237: #
  238: # Display the header information and set
  239: # up the HTML
  240: #-------------------------------
  241: 
  242: sub display_header {
  243:     my ($command,$checkallowed) = @_;
  244:     
  245:     my $scripttag;
  246:     unless ($command eq 'chgthreshold' || $command eq 'chginterval' || 
  247:             $command eq 'chgoldroleinterval' || $command eq 'chgnewroleinterval') {
  248:        $scripttag = <<"END";
  249: <script type="text/javascript">
  250: function change_display(caller,change) {
  251:     caller.value = change;
  252:     document.visible.submit();
  253: }
  254: 
  255: function changeAll(change) {
  256: END
  257:         foreach my $item (keys(%{$checkallowed})) {
  258: 	    if ($item =~ /_section$/) { next; }
  259:             if ($$checkallowed{$item}) {
  260:                 $scripttag.='document.visible.display_'.$item.'.value=change'.
  261:                             "\n";
  262:             }
  263:         }
  264:         $scripttag.='document.visible.submit();
  265: }
  266: </script>
  267: ';
  268:     }
  269:     my $course_type=&Apache::loncommon::course_type();
  270:     return &Apache::loncommon::start_page("What's New?",
  271: 					  $scripttag);
  272: }
  273: 
  274: #-------------------------------
  275: # display_actions_box
  276: #
  277: # Display the action items
  278: #
  279: #-------------------------------
  280:                                                                                 
  281: sub display_actions_box {
  282:     my ($r,$command,$refpage,$threshold_titles,$interval_titles,$initpage,
  283:         $cdom,$crs,$checkallowed) = @_;
  284:     my $udom = $env{'user.domain'};
  285:     my $uname = $env{'user.name'};
  286:     my $cid = $env{'request.course.id'};
  287:     my $crstype = &Apache::loncommon::course_type();
  288:     my $lctype = lc($crstype);
  289:     my %stulabel = (
  290:                     'Course' => 'students',
  291:                     'Community' => 'members',
  292:                    );
  293:     my %lt = &Apache::lonlocal::texthash(
  294:                  'yacc' => 'You are accessing an invalid course',
  295:                  'gtfr' => 'Go to first resource',
  296:                  'hial' => 'Hide all',
  297:                  'shal' => 'Show all',
  298:     );
  299: 
  300:     my %unread = ();
  301:     my %ungraded = ();
  302:     my %bombed = ();
  303:     my %triggered = ();
  304:     my %changed = ();
  305:     my @newmsgs = ();
  306:     my @critmsgs = ();
  307:     my @newdiscussions = ();
  308:     my @tograde = ();
  309:     my @bombs = ();
  310:     my @warnings = ();
  311:     my $msgcount = 0;
  312:     my $critmsgcount = 0;
  313:     my $expirecount;
  314:     my %expired;
  315:     my $activecount;
  316:     my %activated;
  317:     my %res_title = ();
  318:     my %show = ();
  319:     my $needitems = 0;
  320:     my $boxcount = 0;
  321: 
  322:     my $result;
  323:     if ($command eq 'newcourseinit') {
  324:         $result = &store_courseinit_setting($uname,$udom,$cid,$initpage);
  325:     }
  326: 
  327:     my %threshold = ();
  328:     my %pagedesc = &Apache::lonlocal::texthash (
  329:                      firstres => 'First resource',
  330:                      whatsnew => "What's New Page",
  331:                      userpref => 'user preference',
  332:                      coursespecific => $lctype.' only',
  333:                      default => 'default',
  334:                    );
  335: 
  336:     my ($initcontrol,$initdisp) = &curr_courseinit();
  337:     my $currinit = $pagedesc{$initdisp}.' ('.$pagedesc{$initcontrol}.')';
  338: 
  339:     unless ($cid) {
  340:         $r->print('<p><span style="text-align: center; font-weight: bold;">'.$lt{'yacc'}.'</span></p>');
  341:         return;
  342:     }
  343: 
  344:     my $header = '';
  345:     if ($refpage eq 'start') {
  346:         if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
  347:             &GDBM_READER(),0640)) {
  348:             my $furl=$bighash{'first_url'};
  349:             untie(%bighash);
  350:             $header .= '<b><a href="'.$furl.'">'.$lt{'gtfr'}.
  351:                   '</a></b><br />';
  352:         }
  353:     }
  354:     $header .= &mt('Page set to be displayed after you have selected a role in this '.$lctype).'.'
  355:               .' <span class="LC_nobreak">'
  356:               .&mt('Currently: [_1].','<i>'.$currinit.'</i>')
  357:               .'&nbsp;&nbsp;'
  358:               .&mt('[_1]Change[_2] for just [_3]this '.$lctype.'[_4] or for [_5]all your courses/communities[_6].'
  359:                   ,'<b>'
  360:                   ,'</b>'
  361:                   ,'<a href="/adm/whatsnew?command=courseinit&amp;refpage='.$refpage.'">'
  362:                   ,'</a>'
  363:                   ,'<a href="/adm/preferences?action=changecourseinit&amp;refpage='.$refpage.'">'
  364:                   ,'</a>')
  365:               .' </span>';
  366: 
  367:     $r->print(&Apache::loncommon::head_subbox($header));
  368: 
  369:     if ($command eq 'reset') {
  370:         $result = &process_reset($cdom,$crs);
  371:     } elsif ($command eq 'update') {
  372:         $result = &process_update($uname,$udom,$threshold_titles);
  373:     } elsif ($command eq 'newinterval') {
  374:         $result = &store_interval_setting($uname,$udom,$cid,$interval_titles);
  375:     } elsif ($command eq 'newdiscconf') {
  376:         $result = &store_discussion_setting($uname,$udom,$cid);
  377:     }
  378: 
  379:     my $store_result=&store_display_settings($uname,$udom,$cid,$checkallowed);
  380: 
  381:     unless ($store_result eq 'ok') { 
  382:         &Apache::lonnet::logthis('Error saving whatsnew settings: '.
  383:             $store_result.' for '.'user '.$uname.':'.$udom.' in '.$lctype.' '.$cid);
  384:         $result .= '<span class="LC_error">'
  385:                   .&mt('Unable to save visibility settings due to [_1]',
  386:                        $store_result)
  387:                   .'</span>';
  388:     }
  389: 
  390:     if ($result) {
  391:         $r->print($result.'<hr />');
  392:     }
  393:     $r->rflush();
  394: 
  395:     my (%timediff,%interval);
  396:     my %display_settings = &get_display_settings($uname,$udom,$cid);
  397:     $timediff{'versions'} = $display_settings{$cid.':interval'};
  398:     unless (defined($timediff{'versions'})) { $timediff{'versions'} = 604800; } 
  399:     $interval{'versions'} = $interval_titles->{'versions'}->{$timediff{'versions'}};
  400: 
  401:     my %headings = &Apache::lonlocal::texthash(
  402:                 coursediscussion => 'Unread '.$lctype.' discussion posts',
  403:                 handgrading      => 'Problems requiring handgrading',
  404:                 haserrors        => 'Problems with errors',
  405:                 coursenormalmail => 'New '.$lctype.' messages',
  406:                 coursecritmail   => 'New critical messages in '.$lctype,
  407:     );
  408: 
  409:     if ($timediff{'versions'} == -1) {
  410:         $headings{'versionchanges'} = &mt('Resources in '.$lctype.' with version changes since start of '.$lctype);
  411:     } elsif ($timediff{'versions'} == 2592000) {
  412:         $headings{'versionchanges'} = &mt('Resources in '.$lctype.' with version changes since last month');
  413:     } elsif ($timediff{'versions'} == 604800) {
  414:         $headings{'versionchanges'} = &mt('Resources in '.$lctype.' with version changes since last week');
  415:     } elsif ($timediff{'versions'} == 86400) {
  416:         $headings{'versionchanges'} = &mt('Resources in '.$lctype.' with version changes since yesterday');
  417:     }
  418: 
  419:     $timediff{'oldroles'} = $display_settings{$cid.':oldroleinterval'};
  420:     unless (defined($timediff{'oldroles'})) { $timediff{'oldroles'} = 604800; }
  421:     $interval{'oldroles'} = $interval_titles->{'oldroles'}->{$timediff{'oldroles'}};
  422: 
  423:     if ($timediff{'oldroles'} == -1) {
  424:         $headings{'oldroles'} = &mt('Roles for which access to '.$lctype.' has expired since start of '.$lctype);
  425:     } elsif ($timediff{'oldroles'} == 2592000) {
  426:         $headings{'oldroles'} = &mt('Roles for which access to '.$lctype.' has expired since last month');
  427:     } elsif ($timediff{'oldroles'} == 604800) {
  428:         $headings{'oldroles'} = &mt('Roles for which access to '.$lctype.' has expired since last week');
  429:     } elsif ($timediff{'oldroles'} == 86400) {
  430:         $headings{'oldroles'} = &mt('Roles for which access to '.$lctype.' has expired since yesterday');
  431:     }
  432: 
  433:     $timediff{'newroles'} = $display_settings{$cid.':newroleinterval'};
  434:     unless (defined($timediff{'newroles'})) { $timediff{'newroles'} = 604800; }
  435:     $interval{'newroles'} = $interval_titles->{'newroles'}->{$timediff{'newroles'}};
  436: 
  437:     if ($timediff{'newroles'} == -1) {
  438:         $headings{'newroles'} = &mt('Roles for which access to '.$lctype.' has become available since start of '.$lctype);
  439:     } elsif ($timediff{'newroles'} == 2592000) {
  440:         $headings{'newroles'} = &mt('Roles for which access to '.$lctype.' has become available since last month');
  441:     } elsif ($timediff{'newroles'} == 604800) {
  442:         $headings{'newroles'} = &mt('Roles for which access to '.$lctype.' has become available since last week');
  443:     } elsif ($timediff{'newroles'} == 86400) {
  444:         $headings{'newroles'} = &mt('Roles for which access to '.$lctype.' has become available since yesterday');
  445:     }
  446: 
  447:     my $now = time;
  448:     if ($timediff{'versions'} == -1) {
  449:         $timediff{'versions'} = time;
  450:     }
  451:     my $starttime = $now - $timediff{'versions'};
  452: 
  453:     if ($timediff{'newroles'} == -1) {
  454:         $timediff{'newroles'} = time;
  455:     }
  456:     my $activatedstart = $now - $timediff{'newroles'};
  457: 
  458:     if ($timediff{'oldroles'} == -1) {
  459:         $timediff{'oldroles'} = time;
  460:     }
  461:     my $expiredstart = $now - $timediff{'oldroles'};
  462: 
  463:     my $countunread = $display_settings{$cid.':countunread'};
  464:     unless (defined($countunread)) {
  465:         $countunread = 'on';
  466:     }
  467:     if ($$checkallowed{'abovethreshold'}) {
  468:         &get_curr_thresholds(\%threshold,$uname,$udom,$cid,$cdom,$crs);
  469:     }
  470: 
  471:     $headings{'abovethreshold'} = 
  472: 	&mt('(Problems with av. attempts &ge; [_1] or deg. difficulty &ge; [_2]) [_3] and total number of '.$stulabel{$crstype}.' with submissions &ge; [_4]',
  473: 	    $threshold{'av_attempts'},$threshold{'degdiff'},
  474: 	    '<br />',$threshold{'numstudents'});
  475: 
  476:     my @actionorder = ('handgrading','haserrors','abovethreshold','versionchanges','coursediscussion','coursenormalmail','coursecritmail','newroles','oldroles');
  477: 
  478:     foreach my $key (keys(%{$checkallowed})) {
  479: 	if ($key =~ /_section$/) { next; }
  480:         $show{$key} = 0;
  481:         if ($$checkallowed{$key}) {
  482:             unless ($display_settings{$cid.':'.$key} eq 'hide') {
  483:                 $show{$key} = 1;
  484:             }
  485:         }
  486:     }
  487: 
  488:     foreach my $item (@actionorder) {
  489:         unless ($item eq 'coursenormalmail' || $item eq 'coursecritmail' ||
  490:                 $item eq 'newroles' || $item eq 'oldroles') {
  491:             if ($show{$item}) {
  492:                 $needitems = 1;
  493:                 last;
  494:             }
  495:         }
  496:     }
  497: 
  498:     my $itemserror;
  499:     if ($needitems) {
  500:         $itemserror = &getitems(\%unread,\%ungraded,\%bombed,\%triggered,\%changed,\@newdiscussions,\@tograde,\@bombs,\@warnings,\%threshold,$cdom,$crs,\%res_title,\%show,$starttime,$countunread);
  501:     }
  502:     if ($show{'coursenormalmail'}) {
  503:         $msgcount = &getnormalmail(\@newmsgs);
  504:     }
  505:     if ($show{'coursecritmail'}) {
  506:         $critmsgcount = &getcritmail(\@critmsgs);
  507:     }
  508:     if ($show{'oldroles'}) {
  509:         $expirecount = &getexpired(\%expired,$expiredstart,'previous');
  510:     }
  511:     if ($show{'newroles'}) {
  512:         $activecount = &getactivated(\%activated,$activatedstart,'active');
  513:     }
  514:     $r->print(qq|<a href="javascript:changeAll('hide');">$lt{'hial'}</a>
  515:      &nbsp;&nbsp;<a href="javascript:changeAll('show');">$lt{'shal'}</a>
  516:      <form method="post" name="visible" action="/adm/whatsnew">\n|);
  517:     foreach my $item (keys(%{$checkallowed})) {
  518: 	if ($item =~ /_section$/) { next; }
  519:         if ($$checkallowed{$item}) {
  520:             $r->print('<input type="hidden" name="display_'.$item.'" />'."\n");
  521:         }
  522:     }
  523: 
  524:     $r->print('<input type="hidden" name="refpage" value="'.$refpage.'" /></form><table class="LC_double_column"><tr><td class="LC_left_col">');
  525: 
  526:     my $displayed = 0;
  527:     my $totalboxes = 0;
  528:     foreach my $key (keys(%{$checkallowed})) {
  529: 	if ($key =~ /_section$/) { next; }
  530: 	if ($key eq 'whatsnew' ) { next; } # whatsnew check creates no box
  531:         if ($$checkallowed{$key}) {
  532:             $totalboxes ++;
  533:         }
  534:     }
  535:     my $halfway = 4;
  536: #    my $halfway = int($totalboxes/2) + $totalboxes%2;
  537:     foreach my $actionitem (@actionorder) {
  538:         if ($$checkallowed{$actionitem}) {
  539:             if ($displayed == $halfway) {
  540:                 $r->print('</td><td>&nbsp;</td><td class="LC_right_col" >');
  541:             }
  542:             &display_launcher($r,$actionitem,$refpage,$checkallowed,\%show,\%headings,\%res_title,\@tograde,\%ungraded,\@bombs,\%bombed,\%changed,\@warnings,\%triggered,\@newdiscussions,\%unread,$msgcount,\@newmsgs,$critmsgcount,\@critmsgs,\%interval,$countunread,\%expired,$expirecount,\%activated,$activecount,$crstype,$itemserror);
  543:             $displayed ++; 
  544:         }
  545:     }
  546:     $r->print('
  547:       </td>
  548:     </tr>
  549:    </table>
  550: ');
  551: }
  552: 
  553: #-------------------------------
  554: # display_threshold_config
  555: #
  556: # Display the threshold setting screen 
  557: #
  558: #-------------------------------
  559:                                                                                 
  560: sub display_threshold_config {
  561:     my ($r,$refpage,$threshold_titles,$cdom,$crs) = @_;
  562:     my $uname = $env{'user.name'};
  563:     my $udom = $env{'user.dom'};
  564:     my $cid = $env{'request.course.id'};
  565:     my %threshold = ();
  566:     my $rowColor1 = "#ffffff";
  567:     my $rowColor2 = "#eeeeee";
  568:     my $rowColor;
  569: 
  570:     my @thresholditems = ("av_attempts","degdiff","numstudents");
  571:     my %threshold_titles = &Apache::lonlocal::texthash(
  572:                          av_attempts => 'Average number of attempts',
  573:                          degdiff => 'Degree of difficulty',
  574:                          numstudents => 'Total number of students with submissions',
  575:                          );
  576:     &get_curr_thresholds(\%threshold,$uname,$udom,$cid,$cdom,$crs);
  577: 
  578:     $r->print('<br /><form name="thresholdform" method="post" action="/adm/whatsnew">'.
  579:               &Apache::loncommon::start_data_table().
  580:               &Apache::loncommon::start_data_table_header_row().
  581:              '<th>'.&mt('Threshold Name').'</th>'."\n".
  582:              '<th>'.&mt('Current value').'</th>'."\n".
  583:              '<th>'.&mt('Change?').'</th>'."\n".
  584:               &Apache::loncommon::end_data_table_header_row());
  585:     foreach my $type (@thresholditems) {
  586:         my $parameter = $env{'request.course.id'}.':threshold_'.$type;
  587: # onchange is javascript to automatically check the 'Set' button.
  588:         my $onchange = 'onFocus="javascript:window.document.forms'.
  589:               "['thresholdform'].elements['".$parameter."_setparmval']".
  590:               '.checked=true;"';
  591:         $r->print(&Apache::loncommon::start_data_table_row()."\n".
  592:                  '<td>'.$threshold_titles{$type}.'</td>'."\n".
  593:                  '<td>'.&Apache::lonhtmlcommon::textbox($parameter.'_value',
  594:                                             $threshold{$type},
  595:                                             10,$onchange).'</td>'."\n".
  596:                  '<td>'.
  597:                  &Apache::lonhtmlcommon::checkbox($parameter.'_setparmval').
  598:                  '</td>'."\n".
  599:                  &Apache::loncommon::end_data_table_row());
  600:     }
  601:     $r->print(&Apache::loncommon::end_data_table()."\n".
  602:           '<br /><input type="submit" name="threshold" value="'.&mt('Save').'" />
  603:                  <input type="hidden" name="command" value="update" />
  604:                  <input type="hidden" name="refpage" value="'.$refpage.'" />
  605:                </form>');
  606: }
  607: 
  608: #-------------------------------
  609: # display_interval_config
  610: #
  611: # Display the interval setting screen
  612: #
  613: #-------------------------------
  614:                                                                                    
  615: sub display_interval_config {
  616:     my ($r,$refpage,$interval_titles,$context) = @_;
  617:     my $setting = 'interval';
  618:     if ($context eq 'oldroles') {
  619:         $setting = 'oldroleinterval';
  620:     } elsif ($context eq 'newroles') {
  621:         $setting = 'newroleinterval'; 
  622:     }
  623:     my $lctype = lc(&Apache::loncommon::course_type());
  624:     my $current = &get_current($env{'user.name'},$env{'user.domain'},
  625:                                 $env{'request.course.id'},$setting);
  626:     if ($context eq 'oldroles') {
  627:         $r->print('<br />'.&mt('Choose the time window to use to display roles for which access to the '.$lctype.' expired.').'<br />');
  628:     } elsif ($context eq 'newroles') {
  629:         $r->print('<br />'.&mt('Choose the time window to use to display roles for which access to the '.$lctype.' became available.').'<br />');
  630:     } else {
  631:         $r->print('<br />'.&mt('Choose the time window to use to display resources in the '.$lctype.' with version changes.').'<br />');
  632:     }
  633:     unless ($current eq '') {
  634:         if (ref($interval_titles->{$context}) eq 'HASH') {
  635:             $r->print(' '.&mt('Current value is "[_1]".','<b>'.
  636:                       $interval_titles->{$context}->{$current}.'</b>').'<br />');
  637:         }
  638:     }
  639:     $r->print('<br />
  640: <form method="post" name="intervalswitch" action="/adm/whatsnew">
  641: <input type="hidden" name="command" value="newinterval" />
  642: <input type="hidden" name="intervaltype" value="'.$context.'" />
  643: <input type="hidden" name="refpage" value="'.$refpage.'" />'.
  644: &mt('Display:').' 
  645: <select name="interval">
  646: <option value="" selected="selected">'.&mt('Select').'</option>
  647: ');
  648:     if (ref($interval_titles) eq 'HASH') {
  649:         if (ref($interval_titles->{$context}) eq 'HASH') {
  650:             foreach my $key (reverse sort ({$a cmp $b} (keys(%{$interval_titles->{$context}})))) {
  651:                 $r->print('<option value="'.$key.'">'.&mt($interval_titles->{$context}->{$key}).
  652:                           '</option>'."\n");
  653:             }
  654:         }
  655:     }
  656:     $r->print('</select>&nbsp;&nbsp;
  657:                <input type="submit" name="display" value="'.
  658:                &mt('Save').'" /></form>');
  659:     return;
  660: }
  661: 
  662: #----------------------------------------------
  663: # display_discussion_config
  664: #
  665: # Display the discussion display setting screen
  666: #
  667: #----------------------------------------------
  668:                                                                                   
  669: sub display_discussion_config {
  670:     my ($r,$refpage) = @_;
  671:     my $current = &get_current($env{'user.name'},$env{'user.domain'},
  672:                                 $env{'request.course.id'},'countunread');
  673:     if ($current eq '') {
  674:         $current = 'on';
  675:     }
  676:     my %opposite = ( 
  677:                       'on' => 'off',
  678:                       'off' => 'on',
  679:                     );
  680:     $r->print('<script type="text/javascript">
  681: function toggle_countunread(choice) {
  682:     if (choice == "unchanged") {
  683:         document.discussionswitch.command.value = "";
  684:     }
  685:     document.discussionswitch.submit();
  686: }
  687: </script>');
  688:     $r->print('<br />'
  689:              .&mt('Choose whether or not to display a count of the number of new posts for each resource or discussion board which has unread posts.')
  690:              .'<br />'
  691:              .&mt("This can increase the time taken to gather data for the [_1]What's New Page[_2] by a few seconds.",'<i>','</i>')
  692:              .'&nbsp;&nbsp;'
  693:              .&mt('Currently set to [_1].','<b>'.$current.'</b>.')
  694:     );
  695:     $r->print('<br /><br />
  696: <form method="post" name="discussionswitch" action="/adm/whatsnew">
  697: <input type="hidden" name="command" value="newdiscconf" />
  698: <input type="hidden" name="refpage" value="'.$refpage.'" />
  699: <input type="hidden" name="countunread" value="'.$opposite{$current}.'" />
  700: ');
  701:     $r->print('<br/>
  702:                <input type="button" name="display" value="'.
  703:                &mt('Change to [_1]',&mt($opposite{$current})).'" 
  704:                onclick="javascript:toggle_countunread('."'change'".')" />'.
  705:                ('&nbsp;' x7).
  706:                '<input type="button" name="nochange" value="'.
  707:                &mt("No change").'" 
  708:                onclick="javascript:toggle_countunread('."'unchanged'".')" />
  709:                </form>');
  710:     return;
  711: }
  712: 
  713: #---------------------------------------------------
  714: # courseinit_config
  715: #
  716: # Set page displayed when course loads after 
  717: # selecting a role in the course from the roles page. 
  718: #
  719: #---------------------------------------------------
  720: 
  721: sub courseinit_config {
  722:     my ($r,$refpage,$initpage) = @_;
  723:     my ($control,$current) = &curr_courseinit();
  724:     my @chgstate = ('userpref','coursespecific');
  725:     my @chgentry = ('firstres','whatsnew');
  726:     my $lctype = lc(&Apache::loncommon::course_type());
  727:     my %lt = &Apache::lonlocal::texthash(
  728:                              'chwp' => "Choose which page will be displayed when you enter this $lctype after selecting a role.",
  729:                              'cuva' => 'Current value is determined by',
  730:                              'anis' => 'and is set to display',
  731:                              'padc' => 'Page display controlled by',
  732:                              'chce' => 'Choose '.$lctype.' entry',
  733:                              'moce' => 'Save',
  734:     );
  735:     $r->print(<<"END"); 
  736: <br />$lt{'chwp'}
  737: <br />$lt{'cuva'}: <b>
  738: $$initpage{$control}</b> $lt{'anis'} <b>
  739: $$initpage{$current}</b>.<br /><br />
  740: <form method="post" name="courseinitswitch" action="/adm/whatsnew">
  741: <input type="hidden" name="command" value="newcourseinit" />
  742: <input type="hidden" name="refpage" value="$refpage" />
  743: $lt{'padc'}:&nbsp;&nbsp;
  744: END
  745:     foreach my $choice (@chgstate) {
  746:         my $chkstring;
  747:         if ($choice eq $control) {
  748:             $chkstring = ' checked="checked" ';
  749:         }  
  750:         $r->print('<span class="LC_nobreak"><label><input type="radio" name="courseinit_control" value="'.
  751:                    $choice.'"'.$chkstring.'/>'.$$initpage{$choice}.
  752:                    '&nbsp;&nbsp;</label></span>');
  753:     }
  754:     $r->print('<br /><br />'.&mt('If').' '.$$initpage{'coursespecific'}.
  755:               ' - <br />'.$lt{'chce'}.": \n");
  756:     foreach my $choice (@chgentry) {
  757:         my $chkstring;
  758:         if (($choice eq $current) && ($control eq 'coursespecific')) {
  759:             $chkstring = ' checked="checked" ';
  760:         }
  761:         $r->print('<span class="LC_nobreak"><label><input type="radio" name="courseinit_page" value="'.
  762:                   $choice.'"'.$chkstring.'/>'.$$initpage{$choice}.
  763:                   '&nbsp;&nbsp;</label></span>');
  764:     }
  765:     $r->print('<br /><br /><input type="submit" name="display" value="'.
  766:                $lt{'moce'}.'" /></form>');
  767:     return;
  768: }
  769: 
  770: sub curr_courseinit {
  771:     my $current = &get_current($env{'user.name'},$env{'user.domain'},
  772:                                 $env{'request.course.id'},'courseinit');
  773:     my $control;
  774:     if ($current) {
  775:         $control = 'coursespecific';
  776:     } else {
  777:         $control = 'userpref';
  778:         my %userenv = &Apache::lonnet::get('environment',
  779:                                                       ['course_init_display']);
  780:         if (exists($userenv{'course_init_display'})) {
  781:             $current = $userenv{'course_init_display'};
  782:         }
  783:         unless ($current) {
  784:             $current = 'whatsnew';
  785:         }
  786:     }
  787:     return ($control,$current);
  788: }
  789: 
  790: sub display_launcher {
  791:     my ($r,$action,$refpage,$checkallowed,$show,$headings,$res_title,
  792:         $tograde,$ungraded,$bombs,$bombed,$changed,$warnings,$triggered,
  793:         $newdiscussions,$unread,$msgcount,$newmsgs,$critmsgcount,$critmsgs,
  794:         $interval,$countunread,$expired,$expirecount,$activated,$activecount,
  795:         $crstype,$itemserror) = @_;
  796: 
  797:     if ($$checkallowed{$action}) {
  798:         &start_box($r,$show,$headings,$action,$refpage,$action);
  799:         if ($$show{$action}) {
  800:             if ($action eq 'handgrading') {    # UNGRADED ITEMS
  801:                 &display_handgrade($r,$tograde,$ungraded,$itemserror);
  802:             } elsif ($action eq 'haserrors') { # BOMBS
  803:                 &display_haserrors($r,$bombs,$bombed,$res_title,$itemserror);
  804:             } elsif ($action eq 'versionchanges') { # VERSION CHANGES
  805:                 &display_versionchanges($r,$changed,$res_title,$interval->{'versions'},$itemserror);
  806:             } elsif ($action eq 'abovethreshold') { # DEGDIFF/AV. TRIES TRIGGERS
  807:                 &display_abovethreshold($r,$refpage,$warnings,$triggered,
  808: 					$res_title,$itemserror);
  809:             } elsif ($action eq 'coursediscussion') { # UNREAD COURSE DISCUSSION
  810:                 &display_coursediscussion($r,$newdiscussions,$unread,
  811:                                 $countunread,$res_title,$itemserror);
  812:             } elsif ($action eq 'coursenormalmail') { # NORMAL MESSAGES
  813:                 &display_coursenormalmail($r,$msgcount,$newmsgs);
  814:             } elsif ($action eq 'coursecritmail') { # CRITICAL MESSAGES
  815:                 &display_coursecritmail($r,$critmsgcount,$critmsgs);
  816:             } elsif ($action eq 'newroles') { # ACTIVATED ROLES
  817:                 &display_rolechanges($r,$activecount,$activated,$interval->{'newroles'},
  818:                                      $crstype);
  819:             } elsif ($action eq 'oldroles') { # EXPIRED ROLES
  820:                 &display_rolechanges($r,$expirecount,$expired,$interval->{'oldroles'},
  821:                                      $crstype);
  822:             }
  823:         }
  824:         &end_box($r);
  825:     }
  826:     return;
  827: }
  828: 
  829: sub getitems {
  830:     my ($unread,$ungraded,$bombed,$triggered,$changed,$newdiscussions,
  831:         $tograde,$bombs,$warnings,$threshold,$cdom,$crs,$res_title,$show,
  832:         $starttime,$countunread) = @_;
  833:     my $navmap = Apache::lonnavmaps::navmap->new();
  834:     if (!defined($navmap)) {
  835:         my $itemserror = '<span class="LC_warning">'.&mt('An error occurred retrieving information about the course.').'<br />'.&mt('It is recommended that you [_1]re-select the course[_2].','<a href="/adm/roles">','</a>').'</span>';
  836:         return $itemserror;
  837:     }
  838:     # force retrieve Resource to seed the part id cache we'll need it later
  839:     my @allres=$navmap->retrieveResources(undef,
  840:                      sub {if ($_[0]->is_problem) { $_[0]->parts();} return 1;});
  841:     my %resourcetracker;
  842:     my $discussiontime;
  843: 
  844: # Resource version changes
  845:     if ($$show{'versionchanges'}) {
  846:         &checkversions($cdom,$crs,$navmap,$changed,$starttime);
  847:     }
  848: 
  849:     if ($$show{'abovethreshold'}) {
  850:         %resourcetracker =  &Apache::lonnet::dump('nohist_resourcetracker',
  851:                                                                    $cdom,$crs);
  852:     }
  853: 
  854:     foreach my $resource (@allres) {
  855:         my $result = '';
  856:         my $applies = 0;
  857:         my $symb = $resource->symb();
  858:         %{$$bombed{$symb}} = ();
  859:         %{$$ungraded{$symb}} = ();
  860:         %{$$triggered{$symb}} = ();
  861:         $$triggered{$symb}{numparts} = 0;
  862:         if ($resource->encrypted()) {
  863:             $$triggered{$symb}{'enclink'} = $resource->link();
  864:             $$triggered{$symb}{'encsymb'} = $resource->shown_symb();
  865:         }
  866:         my $title = $resource->compTitle();
  867:         $$res_title{$symb} = $title;
  868:         my $ressymb = $resource->wrap_symb();
  869: 
  870: # Check if there are unread discussion postings
  871:         if ($$show{'coursediscussion'}) {
  872:             &check_discussions($resource,$symb,$ressymb,$title,
  873: 			       $newdiscussions,$unread,$countunread);
  874:         }
  875: 
  876: # Check for ungraded problems
  877:         if ($resource->is_problem()) {
  878:             if ($$show{'handgrading'}) {
  879:                 &check_handgraded($resource,$symb,$title,$cdom,$crs,$ungraded,
  880:                                                                      $tograde);
  881:             }
  882:         }
  883: 
  884: # Check for bombs
  885:         if ($$show{'haserrors'}) {
  886:             &check_bombed($resource,$symb,$title,$bombs,$bombed);
  887:         }
  888: 
  889: # Maxtries and degree of difficulty for problem parts, unless handgradeable
  890:         if ($$show{'abovethreshold'}) {  
  891:             &check_thresholds($resource,$symb,\%resourcetracker,
  892: 			      $triggered,$threshold,$warnings);
  893:         }
  894: 
  895:     }
  896:     return; 
  897: }
  898: 
  899: sub check_discussions {
  900:     my ($resource,$symb,$ressymb,$title,$newdiscussions,$unread,
  901: 	$countunread) = @_;
  902: 
  903:     if (!$resource->hasDiscussion()) { return; }
  904: 
  905:     %{$$unread{$ressymb}} = ();
  906:     $$unread{$ressymb}{'title'} = $title;
  907:     $$unread{$ressymb}{'symb'} = $symb;
  908:     if ($resource->encrypted()) {
  909:         $$unread{$ressymb}{'enclink'} = $resource->link();
  910:         $$unread{$ressymb}{'encsymb'} = $resource->shown_symb();
  911:     }
  912:     push(@{$newdiscussions}, $ressymb);
  913:     
  914:     $$unread{$ressymb}{'lastpost'} = $resource->last_post_time();
  915:     
  916:     if ($countunread eq 'on') {
  917: 	$$unread{$ressymb}{'unreadcount'} = 
  918:                             $resource->discussion_info('unread');
  919:     }
  920: }
  921: 
  922: sub check_handgraded {
  923:     my ($resource,$symb,$title,$cdom,$cnum,$ungraded,$tograde) = @_;
  924:     if ($resource->is_problem()) {
  925:         my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
  926:         my $partlist=$resource->parts();
  927:         my $handgradeable;
  928:         foreach my $part (@$partlist) {
  929:             if ($resource->handgrade($part) eq 'yes') {
  930:                 $handgradeable=1; last;
  931:             }
  932:         }
  933:         if ($handgradeable) {
  934:             my @ungraded = &Apache::bridgetask::get_queue_symb_status(
  935:                                              'gradingqueue',$symb,$cdom,$cnum);
  936:             if (@ungraded > 0) {
  937:                 $$ungraded{$symb}{count} = scalar(@ungraded);
  938:                 $$ungraded{$symb}{title} = $title;
  939:                 if ($resource->encrypted()) {
  940:                     $$ungraded{$symb}{'enclink'} = $resource->link();
  941:                     $$ungraded{$symb}{'encsymb'} = $resource->shown_symb();
  942:                 }
  943:                 push(@{$tograde},$symb);
  944:             }
  945:         }
  946:     }
  947: }
  948: 
  949: sub check_bombed {
  950:     my ($resource,$symb,$title,$bombs,$bombed) = @_;
  951:     if ($resource->getErrors()) {
  952:         my $errors = $resource->getErrors();
  953:         $errors =~ s/^,//;
  954:         my @bombs = split(/,/, $errors);
  955:         my $errorcount = scalar(@bombs);
  956:         my $errorlink = '<a href="/adm/email?display='.
  957:                         &escape($bombs[0]).'">'.
  958:                         $title.'</a>';
  959:         $$bombed{$symb}{errorcount} = $errorcount;
  960:         $$bombed{$symb}{errorlink} = $errorlink;
  961:         push(@{$bombs}, $symb);
  962:     }
  963: }
  964: 
  965: sub check_thresholds {
  966:     my ($resource,$symb,$resourcetracker,$triggered,$threshold,$warnings) = @_;
  967: # Compile maxtries and degree of difficulty for problem parts, unless handgradeable
  968:     my @parts = @{$resource->parts()};
  969:     my %stats;
  970:     my %lastreset = ();
  971:     my $warning = 0;
  972:     foreach my $part (@parts) {
  973:         if ($resource->handgrade($part) eq 'yes') {
  974:             next;
  975:         }
  976:         if ($resource->is_survey($part)) {
  977:             next;
  978:         }
  979:         %{$stats{$part}} = ();
  980:         my ($attempts,$users,$corrects,$degdiff,$av_attempts);
  981:         if (exists($$resourcetracker{$symb."\0".$part."\0attempts"})) {
  982:             $attempts = $$resourcetracker{$symb."\0".$part."\0attempts"};
  983:         }
  984:         if (exists($$resourcetracker{$symb."\0".$part."\0users"})) {
  985:             $users = $$resourcetracker{$symb."\0".$part."\0users"};
  986:         }
  987:         if (exists($$resourcetracker{$symb."\0".$part."\0correct"})) {
  988:             $corrects = $$resourcetracker{$symb."\0".$part."\0correct"};
  989:         }
  990:         if ($attempts > 0) {
  991:             $degdiff =  1 - ($corrects/$attempts);
  992:             $degdiff = sprintf("%.2f",$degdiff);
  993:         }
  994:         if ($users > 0) {
  995:             $av_attempts = $attempts/$users;
  996:             $av_attempts = sprintf("%.2f",$av_attempts);
  997:         }
  998:         if ((($degdiff ne '' && $degdiff >= $$threshold{'degdiff'}) || ($av_attempts ne '' && $av_attempts >= $$threshold{'av_attempts'})) && ($users >= $$threshold{'numstudents'})) {
  999:             $stats{$part}{degdiff} = $degdiff;
 1000:             $stats{$part}{attempts} = $av_attempts;
 1001:             $stats{$part}{users} = $users;
 1002:             $lastreset{$part} = $$resourcetracker{$symb."\0".$part."\0resettime"};
 1003:             if ($lastreset{$part}) {
 1004:                 $lastreset{$part} = &Apache::lonnavmaps::timeToHumanString($lastreset{$part});
 1005:             }
 1006:             $warning = 1;
 1007:         }
 1008:     }
 1009:     if ($warning) {
 1010:         $$triggered{$symb}{title} = $resource->title;
 1011:         my $partcount = 0;
 1012:         @{$$triggered{$symb}{text}} = ();
 1013:         foreach my $part (@parts) {
 1014:             if (exists($stats{$part}{users})) {
 1015:                 my $resetname = 'reset_'.&escape($symb."\0".$part);
 1016:                 my $resettitle = 'title_'.&escape($symb."\0".$part);
 1017:                 if (@parts > 1) {
 1018:                     $$triggered{$symb}{text}[$partcount] = '
 1019:                      <td>'.&mt('part - ').$part.'</td>';
 1020:                 } else {
 1021:                     $$triggered{$symb}{text}[$partcount] = '
 1022:                      <td>'.&mt('single part').'</td>';
 1023:                 }
 1024:                 $$triggered{$symb}{text}[$partcount] .= '
 1025:                      <td>'.$stats{$part}{users}.'</td>
 1026:                      <td>'.$stats{$part}{attempts}.'</td>
 1027:                      <td>'.$stats{$part}{degdiff}.'</td>
 1028:                      <td>'.$lastreset{$part}.'</td>
 1029:                      <td><input type="checkbox" name="'.$resetname.'" /><input type="hidden" name="'.$resettitle.'" value="'.&escape($$triggered{$symb}{title}).'" /></td>';
 1030:                 $partcount ++;
 1031:             }
 1032:             $$triggered{$symb}{numparts} = $partcount;
 1033:         }
 1034:         push(@{$warnings},$symb);
 1035:     }
 1036: }
 1037: 
 1038: 
 1039: sub get_curr_thresholds {
 1040:     my ($threshold,$uname,$udom,$cid,$cdom,$crs) = @_;
 1041:     # set default values
 1042:     %$threshold = (av_attempts => 2,
 1043:                   degdiff => 0.5,
 1044:                   numstudents => 2
 1045:                   );
 1046:     my %thresholdsettings = &Apache::lonnet::dump('nohist_whatsnew',$udom,
 1047:                                                      $uname,$cid.':threshold');
 1048:     my $thresholdcount = 0;
 1049:     my ($tmp) = %thresholdsettings;
 1050:     unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
 1051:         foreach my $item (keys %{$threshold}) { 
 1052:             if (exists($thresholdsettings{$cid.':threshold_'.$item})) {
 1053:                 $$threshold{$item} = 
 1054:                              $thresholdsettings{$cid.':threshold_'.$item};
 1055:                 $thresholdcount ++;
 1056:             }
 1057:         }
 1058:     }
 1059:     if ($thresholdcount == 3) {
 1060:         return;
 1061:     }
 1062:     my %coursesettings = &Apache::lonnet::dump('environment',
 1063:                                               $cdom,$crs,'internal.threshold');
 1064:     my ($temp) = %coursesettings;
 1065:     unless ($temp =~ /^(con_lost|error|no_such_host)/i) {  
 1066:         foreach my $item (keys %{$threshold}) {
 1067:             unless (exists($thresholdsettings{$cid.':threshold_'.$item})) {
 1068:                 if (exists($coursesettings{'internal.threshold_'.$item})) {
 1069:                     $$threshold{$item} = 
 1070:                              $coursesettings{'internal.threshold_'.$item};
 1071:                 }
 1072:             }
 1073:         }
 1074:     }
 1075:     return;
 1076: }
 1077: 
 1078: sub get_current {
 1079:     my ($uname,$udom,$cid,$caller) = @_;
 1080:     my $currvalue;
 1081:     my %settings = &Apache::lonnet::dump('nohist_whatsnew',$udom,$uname,$cid.
 1082:                                                                 ':'.$caller);
 1083:     my ($tmp) = %settings;
 1084:     unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
 1085:         $currvalue = $settings{$cid.':'.$caller};
 1086:     }
 1087:     return $currvalue;
 1088: }
 1089: 
 1090: sub process_reset {
 1091:     my ($dom,$crs) = @_;
 1092:     my $result = '<b>'.&mt('Counters reset for following problems (and parts):').
 1093:                            '</b><br />';
 1094:     my @agg_types = ('attempts','users','correct');
 1095:     my %agg_titles = &Apache::lonlocal::texthash (
 1096:                      attempts => 'Number of submissions',
 1097:                      users => 'Students with submissions',
 1098:                      correct => 'Number of correct submissions',
 1099:                      );
 1100:     my @resets = ();
 1101:     my %titles = ();
 1102:     foreach my $key (keys(%env)) {
 1103:         next if ($key !~ /^form\.reset_(.+)$/);
 1104:         my $title = &unescape($env{'form.title_'.$1});
 1105:         my $reset_item = &unescape($1);
 1106:         my %curr_aggregates = &Apache::lonnet::dump('nohist_resourcetracker',$dom,$crs,$reset_item);
 1107:         my %aggregates = ();
 1108:         my ($symb,$part) = split(/\0/,$reset_item);
 1109:         foreach my $type (@agg_types) {
 1110:             $aggregates{$reset_item."\0".$type} = 0;
 1111:         }  
 1112: 	$aggregates{$reset_item."\0".'resettime'} = time;
 1113:         my $putresult = &Apache::lonnet::put('nohist_resourcetracker',\%aggregates,
 1114:                           $dom,$crs);
 1115:         if ($putresult eq 'ok') {
 1116:             $result .= $title.' -part '.$part.': ';
 1117:             my %new_aggregates = &Apache::lonnet::dump('nohist_resourcetracker',$dom,$crs,$reset_item);
 1118:             foreach my $type (@agg_types) {
 1119:                 $result .= $agg_titles{$type}.' = '.$new_aggregates{$reset_item."\0".$type}.'; ';
 1120:             }
 1121:             $result =~ s/; $//;
 1122:             $result .= '<br />';
 1123:         } else {
 1124:             $result = $title.' -part '.$part.': '.&mt('Unable to reset counters to zero due to [_1]',$putresult).'.<br />'."\n";
 1125:         }
 1126:     }
 1127:     return $result;
 1128: }
 1129: 
 1130: sub process_update {
 1131:     my ($uname,$udom,$threshold_titles) = @_;
 1132:     my $setoutput = '<b>'.&mt('Changes to threshold(s) for problem tracking:').'</b><br />';
 1133:     foreach (keys %env) {
 1134:         next if ($_!~/^form\.(.+)\_setparmval$/);
 1135:         my $name  = $1;
 1136:         my $value = $env{'form.'.$name.'_value'};
 1137:         if ($name && defined($value) && ($value ne '')) {
 1138:             my $put_result = &Apache::lonnet::put('nohist_whatsnew',
 1139:                                                   {$name=>$value},$udom,$uname);
 1140:            
 1141:             my ($shortname) = ($name =~ /^\Q$env{'request.course.id'}\E:threshold_(.+)$/);
 1142:             if ($put_result eq 'ok') {
 1143:                 $setoutput.=&mt('Set threshold for [_1] to [_2]',
 1144: 				'<b>'.$$threshold_titles{$shortname}.'</b>',
 1145: 				'<b>'.$value.'</b>').'<br />';
 1146: 	    } else {
 1147:                 $setoutput.=&mt('Unable to set threshold for [_1] to [_2] due to [_3].',
 1148: 				'<b>'.$name.'</b>','<b>'.$value.'</b>',
 1149: 				'<tt>'.$put_result.'</tt>').'<br />';
 1150:             }
 1151:         }
 1152:     }
 1153:     return $setoutput;
 1154: }
 1155: 
 1156: sub getnormalmail {
 1157:     my ($newmsgs) = @_;
 1158: # Check for unread mail in course
 1159:     my $msgcount = 0;
 1160: 
 1161:     my @messages = sort(&Apache::lonnet::getkeys('nohist_email'));
 1162:     foreach my $message (@messages) {
 1163: 	my $msgid=&escape($message);
 1164:         my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
 1165:             &Apache::lonmsg::unpackmsgid($msgid);
 1166:         if (($fromcid) && ($fromcid eq $env{'request.course.id'})) {
 1167:             if (defined($sendtime) && $sendtime!~/error/) {
 1168:                 my $numsendtime = $sendtime;
 1169:                 if ($status eq 'new') {
 1170:                 $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
 1171: 		    $msgcount ++;
 1172:                     if ($shortsubj eq '') {
 1173:                         $shortsubj = &mt('No subject');
 1174:                     }
 1175:                     push(@{$newmsgs}, {
 1176:                         msgid    => $msgid,
 1177:                         sendtime => $sendtime,
 1178:                         shortsub => $shortsubj,
 1179:                         from     => $fromname,
 1180:                         fromdom  => $fromdom
 1181:                         });
 1182:                 }
 1183:             }
 1184:         }
 1185:     }
 1186:     return $msgcount;
 1187: }
 1188: 
 1189: sub getcritmail {
 1190:     my ($critmsgs) = @_; 
 1191: # Check for critical messages in course
 1192:     my %what=&Apache::lonnet::dump('critical');
 1193:     my $result = '';
 1194:     my $critmsgcount = 0;
 1195:     foreach my $msgid (sort(keys(%what))) {
 1196:         my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
 1197:             &Apache::lonmsg::unpackmsgid($msgid);
 1198:         if (($fromcid) && ($fromcid eq  $env{'request.course.id'})) {
 1199:             if (defined($sendtime) && $sendtime!~/error/) {
 1200:                 my $numsendtime = $sendtime;
 1201:                 $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
 1202:                 $critmsgcount ++;
 1203:                 if ($shortsubj eq '') {
 1204:                     $shortsubj = &mt('No subject');
 1205:                 }
 1206:                 push(@{$critmsgs}, {
 1207:                         msgid    => $msgid,
 1208:                         sendtime => $sendtime,
 1209:                         shortsub => $shortsubj,
 1210:                         from     => $fromname,
 1211:                         fromdom  => $fromdom
 1212:                         });
 1213:             }
 1214:         }
 1215:     }
 1216:     return $critmsgcount;
 1217: }
 1218: 
 1219: sub getexpired {
 1220:     my ($rolechgs,$rolechgtime,$status) = @_;
 1221:     my $expirecount = &getrolechanges($rolechgs,$rolechgtime,$status);
 1222:     return $expirecount;
 1223: }
 1224: 
 1225: sub getactivated {
 1226:     my ($rolechgs,$rolechgtime,$status) = @_;
 1227:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 1228:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 1229:     my $now = time();
 1230:     my $context = 'course';
 1231:     my ($permission,$allowed) =
 1232:         &Apache::lonuserutils::get_permission($context);
 1233:     my $viewablesec = &Apache::lonuserutils::viewable_section($permission);
 1234:     my %changes=&Apache::lonnet::dump('nohist_rolelog',$cdom,$cnum);
 1235:     my (%stucounted,%advcounted);
 1236:     my $activatedcount = 0;
 1237:     if (keys(%changes) > 0) {
 1238:         foreach my $chg (sort { $b <=> $a } (keys(%changes))) {
 1239:             if (ref($changes{$chg}) eq 'HASH') {
 1240:                 my $timestamp = $changes{$chg}{'exe_time'};
 1241:                 if ($timestamp) {
 1242:                     if ($rolechgtime > 0) {
 1243:                         if ($timestamp < $rolechgtime) {
 1244:                             last;
 1245:                         }
 1246:                     }
 1247:                     if (ref($changes{$chg}{'logentry'}) eq 'HASH') {
 1248:                         next if ($changes{$chg}{'delflag'});
 1249:                         my $start = $changes{$chg}{'logentry'}{'start'};
 1250:                         my $end = $changes{$chg}{'logentry'}{'end'};
 1251:                         my $section = $changes{$chg}{'logentry'}{'section'};
 1252:                         my $role = $changes{$chg}{'logentry'}{'role'};
 1253:                         my $uname = $changes{$chg}{'uname'};
 1254:                         my $udom = $changes{$chg}{'udom'};
 1255:                         next if ($end && $end <= $now);
 1256:                         if (($viewablesec ne '') && ($section ne '')) {
 1257:                             next if ($viewablesec ne $section);
 1258:                         }
 1259:                         next if ($start >= $timestamp);
 1260:                         if ($role eq 'st') {
 1261:                             $stucounted{$uname.':'.$udom.':'.$section} = $start.':'.$end;
 1262:                         } else {
 1263:                             $advcounted{$uname.':'.$udom.':'.$role.':'.$section} = $start.':'.$end;
 1264:                         }
 1265:                         my %chginfo = (
 1266:                                        'section' => $section,
 1267:                                        'uname'   => $uname,
 1268:                                        'udom'    => $udom,
 1269:                                        'role'    => $role,
 1270:                                        'status'  => $status,
 1271:                         );
 1272:                         $activatedcount ++;
 1273:                         push (@{$rolechgs->{$timestamp}},\%chginfo);
 1274:                     }
 1275:                 }
 1276:             }
 1277:         }
 1278:     }
 1279:     $activatedcount += &getrolechanges($rolechgs,$rolechgtime,$status,\%stucounted,\%advcounted);
 1280:     return $activatedcount;
 1281: }
 1282: 
 1283: sub getrolechanges {
 1284:     my ($rolechgs,$rolechgtime,$status,$stucountref,$advcountref) = @_;
 1285:     my (%stucounted,%advcounted);
 1286:     if (ref($stucountref) eq 'HASH') {
 1287:         %stucounted = %{$stucountref};
 1288:     }
 1289:     if (ref($advcountref) eq 'HASH') {
 1290:         %advcounted = %{$advcountref};
 1291:     }
 1292:     my $withsec = 1;
 1293:     my $hidepriv = 1;
 1294:     my $context = 'course';
 1295:     my @statuses = ($status);
 1296:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 1297:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 1298:     my $now = time();
 1299:     my ($permission,$allowed) =
 1300:         &Apache::lonuserutils::get_permission($context);
 1301:     my $viewablesec = &Apache::lonuserutils::viewable_section($permission);
 1302:     my $classlist = &Apache::loncoursedata::get_classlist();
 1303:     my $secidx = &Apache::loncoursedata::CL_SECTION();
 1304:     my $startidx = &Apache::loncoursedata::CL_START();
 1305:     my $endidx = &Apache::loncoursedata::CL_END();
 1306:     my $rolechgcount = 0;
 1307:     foreach my $key (keys(%{$classlist})) {
 1308:         my ($userstatus,$eventtime);   
 1309:         my $student = $classlist->{$key};
 1310:         if (ref($student) eq 'ARRAY') {
 1311:             my $start = $student->[$startidx];
 1312:             my $end = $student->[$endidx];
 1313:             my $sec = $student->[$secidx]; 
 1314:             my ($stuname,$studom) = split(/:/,$key);
 1315:             if ($status eq 'active') {
 1316:                 if (exists($stucounted{$key.':'.$sec})) {
 1317:                     next;
 1318:                 }
 1319:             }
 1320:             if (($end == 0) || ($end > $start)) {
 1321:                 if ($start <= $now) {
 1322:                     if ($end && $end < $now) {
 1323:                         if ($rolechgtime > 0) {
 1324:                             if ($end > $rolechgtime) {
 1325:                                 $userstatus = 'previous';
 1326:                             }
 1327:                         } else {
 1328:                             $userstatus = 'previous';
 1329:                         }
 1330:                     } else {
 1331:                         if ($rolechgtime > 0) {
 1332:                             if ($start >= $rolechgtime) {
 1333:                                 $userstatus = 'active';
 1334:                             }
 1335:                         } else {
 1336:                             $userstatus = 'active';
 1337:                         }
 1338:                     }
 1339:                 }
 1340:             }
 1341:             next if ($userstatus ne $status);
 1342:             if ($status eq 'active') {
 1343:                 $eventtime = $start;
 1344:             } else {
 1345:                 $eventtime = $end;
 1346:             }
 1347:             if (($viewablesec ne '') && ($sec ne '')) {
 1348:                 next if ($viewablesec ne $sec);
 1349:             }
 1350:             my %chginfo = (
 1351:                             'section' => $sec,
 1352:                             'uname'   => $stuname,
 1353:                             'udom'    => $studom,
 1354:                             'role'    => 'st', 
 1355:                             'status'  => $userstatus,
 1356:                           );
 1357:             $rolechgcount ++;
 1358:             push (@{$rolechgs->{$eventtime}},\%chginfo);
 1359:         }
 1360:     }
 1361:     my %advrolehash = &Apache::lonnet::get_my_roles($cnum,$cdom,undef,
 1362:                               \@statuses,undef,undef,$withsec,$hidepriv);
 1363:     foreach my $item (keys(%advrolehash)) {
 1364:         my ($userstatus,$eventtime);
 1365:         my ($uname,$udom,$role,$section) = split(/:/,$item,-1);
 1366:         my ($start,$end) = split(/:/,$advrolehash{$item});
 1367:         if ($start eq '-1' && $end eq '-1') {
 1368:             next;
 1369:         } else {
 1370:             if ($status eq 'active') {
 1371:                 if (exists($advcounted{$item})) {
 1372:                     next;
 1373:                 }
 1374:             }
 1375:             if (($end == 0) || ($end > $start)) {
 1376:                 if ($start <= $now) {
 1377:                     if ($end && $end < $now) {
 1378:                         if ($rolechgtime > 0) {
 1379:                             if ($end > $rolechgtime) {
 1380:                                 $userstatus = 'previous';
 1381:                             }
 1382:                         } else {
 1383:                             $userstatus = 'previous';
 1384:                         }
 1385:                     } else {
 1386:                         if ($rolechgtime > 0) {
 1387:                             if ($start >= $rolechgtime) {
 1388:                                 $userstatus = 'active';
 1389:                             }
 1390:                         } else {
 1391:                             $userstatus = 'active';
 1392:                         }
 1393:                     }
 1394:                 }
 1395:             }
 1396:             next if ($userstatus ne $status);
 1397:             if ($status eq 'active') {
 1398:                 $eventtime = $start;
 1399:             } else {
 1400:                 $eventtime = $end;
 1401:             }
 1402:         }
 1403:         if (($viewablesec ne '') && ($section ne '')) {
 1404:             next if ($viewablesec ne $section);
 1405:         }
 1406:         my %chginfo = ( 
 1407:                         'section' => $section,
 1408:                         'uname'   => $uname,
 1409:                         'udom'    => $udom,
 1410:                         'role'    => $role,
 1411:                         'status'  => $userstatus,    
 1412:                       );
 1413:         $rolechgcount ++; 
 1414:         push (@{$rolechgs->{$eventtime}},\%chginfo); 
 1415:     }
 1416:     return $rolechgcount;
 1417: }
 1418: 
 1419: sub checkversions {
 1420:     my ($cdom,$crs,$navmap,$changed,$starttime) = @_;
 1421:     my %changes=&Apache::lonnet::dump('versionupdate',$cdom,$crs);
 1422:     my ($tmp) = keys(%changes);
 1423:     unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
 1424:         if (keys(%changes) > 0) {
 1425:             foreach my $key (sort(keys(%changes))) {
 1426:                 if ($changes{$key} > $starttime) {
 1427:                     my $version;
 1428:                     my ($root,$extension)=($key=~/^(.*)\.(\w+)$/);
 1429:                     my $currentversion=&Apache::lonnet::getversion($key);
 1430:                     my $revdate = 
 1431:                           &Apache::lonnet::metadata($root.'.'.$extension,
 1432:                                                      'lastrevisiondate');
 1433:                     $revdate =  &Apache::lonlocal::locallocaltime($revdate);
 1434:                     my $linkurl=&Apache::lonnet::clutter($key);
 1435:                     my $usedversion=$navmap->usedVersion('version_'.$linkurl);
 1436:                     my @resources = $navmap->getResourceByUrl($linkurl,1);
 1437:                     if (($usedversion) && ($usedversion ne 'mostrecent')) {
 1438:                         $version = $usedversion;     
 1439:                     } else {
 1440:                         $version = $currentversion;
 1441:                     }
 1442:                     foreach my $res (@resources) {
 1443:                          if (ref($res) eq 'Apache::lonnavmaps::resource') { 
 1444:                             my $symb = $res->symb();
 1445:                             %{$$changed{$symb}} = (
 1446:                                                 current => $currentversion,
 1447:                                                 version => $version,
 1448:                                                 revdate => $revdate,
 1449:                             );
 1450:                         }
 1451:                     }
 1452:                 }
 1453:             }
 1454:         }
 1455:     }
 1456:     return;
 1457: }
 1458: 
 1459: sub display_handgrade {
 1460:     my ($r,$tograde,$ungraded,$itemserror) = @_;
 1461:     my %lt = &Apache::lonlocal::texthash(
 1462:                         'prna' => 'Problem Name',
 1463:                         'nmun' => 'Number ungraded',
 1464:                         'nopr' => 'No problems require handgrading',
 1465:     );
 1466:     if (@{$tograde} > 0) {
 1467:         $r->print('<tr class="LC_info_row"><td class="LC_left_item">'.
 1468:                   $lt{'prna'}.'</td><td class="LC_right_item">'.
 1469:                   $lt{'nmun'}.'</td></tr>');
 1470:         my $rowNum = 0;
 1471:         foreach my $res (@{$tograde}) {
 1472:             $rowNum ++;
 1473:             my $css_class = $rowNum%2?' class="LC_odd_row"':'';
 1474:             my ($map,$id,$url)=&Apache::lonnet::decode_symb($res);
 1475:             my $linkurl=&Apache::lonnet::clutter($url);
 1476:             $linkurl .= '?symb='.&escape($res);
 1477:             if ($$ungraded{$res}{'enclink'}) {
 1478:                 $linkurl = 
 1479:                     $$ungraded{$res}{'enclink'}.'?symb='.$$ungraded{$res}{'encsymb'};
 1480:             } 
 1481:             $r->print('<tr'.$css_class.'><td><a href="'.$linkurl.'">'.$$ungraded{$res}{title}.'</a></td><td class="LC_right_item">'.$$ungraded{$res}{count}.'</td></tr>');
 1482:         }
 1483:     } elsif ($itemserror) {
 1484:         $r->print('<tr class="LC_empty_row"><td>'.$itemserror.'</td></tr>');
 1485:     } else {
 1486:         $r->print('<tr class="LC_empty_row"><td>'.$lt{'nopr'}.'</td></tr>');
 1487:     }
 1488: }
 1489: 
 1490: sub display_haserrors {
 1491:     my ($r,$bombs,$bombed,$res_title,$itemserror) = @_;
 1492:     my $bombnum = 0;
 1493:     my %lt = &Apache::lonlocal::texthash(
 1494:                                    reso => 'Resource',
 1495:                                    nmer => 'Number of errors',
 1496:                                    noer => 'No problems with errors',
 1497:     );
 1498:     if (@{$bombs} > 0) {
 1499:         $r->print('<tr class="LC_info_row"><td class="LC_left_item">'.
 1500:                   $lt{'reso'}.'</td><td class="LC_right_item">'.
 1501:                   $lt{'nmer'}.'</td></tr>');
 1502:         @{$bombs} = sort { &cmp_title($a,$b,$res_title) } @{$bombs};
 1503:         foreach my $bomb (@{$bombs}) {
 1504:             $bombnum ++;
 1505:             my $css_class = $bombnum%2?' class="LC_odd_row"':'';
 1506:             $r->print('<tr'.$css_class.'><td>'.$$bombed{$bomb}{errorlink}.
 1507:                       '</td><td class="LC_right_item">'.
 1508:                       $$bombed{$bomb}{errorcount}.'</td></tr>');
 1509:         }
 1510:     } elsif ($itemserror) {
 1511:         $r->print('<tr class="LC_empty_row"><td>'.$itemserror.'</td></tr>');
 1512:     } else {
 1513:         $r->print('<tr class="LC_empty_row"><td>'.$lt{'noer'}.'</td></tr>');
 1514:     }
 1515:     return;
 1516: }
 1517: 
 1518: sub display_abovethreshold {
 1519:     my ($r,$refpage,$warnings,$triggered,$res_title,$itemserror) = @_;
 1520:     my %lt = &Apache::lonlocal::texthash(
 1521:                  reso => 'Resource',
 1522:                  part => 'Part',
 1523:                  nust => 'Num. students',
 1524:                  avat => 'Av. Attempts',
 1525:                  dedi => 'Deg. Diff',
 1526:                  lare => 'Last Reset',
 1527:                  reco => 'Reset Count?',
 1528:                  rese => 'Reset counters to 0',
 1529:                  nopr => 'No problems satisfy threshold criteria',
 1530:     );
 1531:     if (@{$warnings} > 0) {
 1532:         @{$warnings} = sort { &cmp_title($a,$b,$res_title) } @{$warnings};
 1533:         $r->print('<form name="reset_tracking" method="post" action="/adm/whatsnew">'.
 1534:                 ' <input type="hidden" name="command" value="reset" />'."\n".
 1535:                 ' <input type="hidden" name="refpage" value="'.$refpage.'" />'.
 1536:                 "\n");
 1537:         $r->print('<tr class="LC_info_row">'.
 1538: 		  '<td class="LC_left_item">'.$lt{'reso'}.'</td>'.
 1539: 		  '<td>'.$lt{'part'}.'</td><td>'.$lt{'nust'}.'</td>'.
 1540: 		  '<td>'.$lt{'avat'}.'</td><td>'.$lt{'dedi'}.'</td>'.
 1541: 		  '<td>'.$lt{'lare'}.'</td><td  class="LC_right_item">'.
 1542:                   $lt{'reco'}.'</td></tr>');
 1543: 	my $row;
 1544:         foreach my $res (@{$warnings}) {
 1545: 	    $row++;
 1546:             my ($map,$id,$url)=&Apache::lonnet::decode_symb($res);
 1547:             my $linkurl=&Apache::lonnet::clutter($url);
 1548:             my $rowspan;
 1549:             if ($$triggered{$res}{numparts} > 1) {
 1550:                 $rowspan = 'rowspan="'.$$triggered{$res}{numparts}.'"';
 1551:             }
 1552:             $linkurl .= '?symb='.&escape($res);
 1553:             if ($$triggered{$res}{'enclink'}) {
 1554:                 $linkurl = 
 1555:                   $$triggered{$res}{'enclink'}.'?symb='.$$triggered{$res}{'encsymb'};
 1556:             }
 1557:             my $css_class = $row%2?' class="LC_odd_row"':'';
 1558:             $r->print('<tr'.$css_class.'>'.
 1559: 		      '<td class="LC_first_item" '.$rowspan.'><a href="'.$linkurl.'">'.
 1560: 		      $$triggered{$res}{title}.'</a></td>');
 1561:                       if (ref($$triggered{$res}{text}) eq 'ARRAY') {
 1562: 		          $r->print($$triggered{$res}{text}[0]);
 1563:                       }
 1564:                       $r->print('</tr>');
 1565:             if (ref($$triggered{$res}{text}) eq 'ARRAY') {
 1566:                 if (@{$$triggered{$res}{text}} > 1) {
 1567:                     for (my $i=1; $i<@{$$triggered{$res}{text}}; $i++) {
 1568:                         $r->print('<tr class="'.$css_class.'">'.
 1569:                                   $$triggered{$res}{text}[$i].'</tr>');
 1570:                     }
 1571:                 }
 1572:             }
 1573:         }
 1574:         $r->print('<tr class="LC_info_row"><td colspan="7" class="LC_right_item"><br /><input type="submit" name="counters" value="'.$lt{'rese'}.'" /></td></tr></form>');
 1575:     } elsif ($itemserror) {
 1576:         $r->print('<tr class="LC_empty_row"><td>'.$itemserror.'</td></tr>');
 1577:     } else {
 1578:         $r->print('<tr class="LC_empty_row"><td>'.$lt{'nopr'}.'</td></tr>');
 1579:     }
 1580: }
 1581: 
 1582: sub display_versionchanges {
 1583:     my ($r,$changed,$res_title,$interval,$itemserror) = @_;
 1584:     my %lt = &Apache::lonlocal::texthash(
 1585:         'reso' => 'Resource',
 1586:         'revd' => 'Last revised',
 1587:         'newv' => 'New version',
 1588:         'veru' => 'Version used',
 1589:     );
 1590:     if (keys(%{$changed}) > 0) {
 1591:         $r->print('<tr class="LC_info_row"><td class="LC_left_item">'.
 1592:                   $lt{'reso'}.'</td><td>'.$lt{'revd'}.'</td><td>'.
 1593:                   $lt{'newv'}.'</td><td class="LC_right_item">'.
 1594:                   $lt{'veru'}.'</td></tr>');
 1595:         my @changes = sort { &cmp_title($a,$b,$res_title) } keys(%{$changed});
 1596:         my $changenum = 0;
 1597:         foreach my $item (@changes) {
 1598:             $changenum ++;
 1599:             my $css_class = $changenum%2?' class="LC_odd_row"':'';
 1600:             my ($map,$id,$url)=&Apache::lonnet::decode_symb($item);
 1601:             my $linkurl=&Apache::lonnet::clutter($url);
 1602:             $linkurl .= '?symb='.&escape($item);
 1603: 
 1604:             $r->print('<tr'.$css_class.'><td><a href="'.$linkurl.'">'.
 1605:                       $$res_title{$item}.'</a></td><td>'.
 1606:                       $$changed{$item}{'revdate'}.'</td><td>'.
 1607:                       $$changed{$item}{'current'}.'</td><td>'.
 1608:                       $$changed{$item}{'version'}.'</td></tr>');
 1609:         }
 1610:     } elsif ($itemserror) {
 1611:         $r->print('<tr class="LC_empty_row"><td>'.$itemserror.'</td></tr>');
 1612:     } else {
 1613:         $r->print('<tr class="LC_empty_row"><td>'
 1614:                  .&mt('No '.$interval).'</td></tr>');
 1615:     }
 1616:     return;
 1617: }
 1618: 
 1619: sub display_rolechanges {
 1620:     my ($r,$chgcount,$changed,$interval,$crstype) = @_;
 1621:     my $now = time();
 1622:     my %lt = &Apache::lonlocal::texthash(
 1623:         'user'  => 'User',
 1624:         'tich'  => 'Time of change',
 1625:         'role'  => 'Role',
 1626:         'sec'   => 'Section',
 1627:         'status'  => 'Status',
 1628:     );
 1629:     if ($chgcount) {
 1630:         $r->print('<tr class="LC_info_row">'.
 1631:                   '<td class="LC_left_item">'.$lt{'tich'}.'</td>'.
 1632:                   '<td class="LC_left_item">'.$lt{'user'}.'</td>'.
 1633:                   '<td class="LC_left_item">'.$lt{'role'}.'</td>'.
 1634:                   '<td class="LC_left_item">'.$lt{'sec'}.'</td>'.
 1635:                   '<td class="LC_left_item">'.$lt{'status'}.'</td></tr>');
 1636:         if (ref($changed) eq 'HASH') {
 1637:             my @changes = sort { $b <=> $a } (keys(%{$changed}));
 1638:             my $changenum = 0;
 1639:             foreach my $item (@changes) {
 1640:                 if (ref($changed->{$item}) eq 'ARRAY') {
 1641:                     foreach my $chg (@{$changed->{$item}}) {
 1642:                         if (ref($chg) eq 'HASH') {
 1643:                             my $section;
 1644:                             my $role = 
 1645:                                 &Apache::lonnet::plaintext($chg->{'role'},$crstype);
 1646:                             my $status = &mt($chg->{'status'});
 1647:                             if ($chg->{'section'} eq '') {
 1648:                                 $section = &mt('none');
 1649:                             } else {
 1650:                                 $section = $chg->{'section'};
 1651:                             }
 1652:                             my $uname = $chg->{'uname'};
 1653:                             my $udom = $chg->{'udom'};
 1654:                             $changenum ++;
 1655:                             my $css_class = $changenum%2?' class="LC_odd_row"':'';
 1656:                             my $link = 
 1657:                                 &Apache::loncommon::aboutmewrapper(&Apache::loncommon::plainname($uname,$udom),$uname,$udom);
 1658:                             $r->print('<tr'.$css_class.'>'.
 1659:                                       '<td>'.&Apache::lonlocal::locallocaltime($item).'</td>'.
 1660:                                       '<td>'.$link.'</td>'.
 1661:                                       '<td>'.$role.'</td>'.
 1662:                                       '<td>'.$section.'</td>'.
 1663:                                       '<td>'.$status.'</td></tr>');
 1664:                         }
 1665:                     }
 1666:                 }
 1667:             }
 1668:         }
 1669:     } else {
 1670:         $r->print('<tr class="LC_empty_row"><td>'
 1671:                  .&mt('There are no '.$interval).'</td></tr>');
 1672:     }
 1673:     return;
 1674: }
 1675:  
 1676: sub display_coursediscussion {
 1677:     my ($r,$newdiscussions,$unread,$countunread,$res_title,$itemserror) = @_;
 1678:     my $lctype = lc(&Apache::loncommon::course_type());
 1679:     my %lt = &Apache::lonlocal::texthash(
 1680:                 'loca' => 'Location',
 1681:                 'type' => 'Type',
 1682:                 'numn' => 'Number of new posts',
 1683:                 'noun' => 'No unread posts in '.$lctype.' discussions',
 1684:                 'tmlp' => 'Time of last post', 
 1685:     );
 1686:     if (@{$newdiscussions} > 0) {
 1687:         $r->print('<tr class="LC_info_row"><td class="LC_left_item">'.
 1688:                   $lt{'loca'}.'</td><td>'.
 1689:                   $lt{'type'}.'</td>');
 1690:         if ($countunread eq 'on') {
 1691:             $r->print('<td>'.$lt{'tmlp'}.'</td>'.
 1692:                       '<td class="LC_right_item">'.$lt{'numn'}.'</td>');
 1693:         } else {
 1694:             $r->print('<td class="LC_right_item">'.$lt{'tmlp'}.'</td>');
 1695:         }
 1696:         $r->print("</tr>\n");
 1697:         @{$newdiscussions} = sort { &cmp_title($a,$b,$res_title) }
 1698:                                                             @{$newdiscussions};
 1699:         my $rowNum = 0;
 1700:         foreach my $ressymb (@{$newdiscussions}) {
 1701:             $rowNum ++;
 1702:             my $forum_title = $$unread{$ressymb}{'title'};
 1703:             my $type = 'Resource';
 1704:             my $feedurl=&Apache::lonfeedback::get_feedurl($ressymb);
 1705:             my $disclink = $feedurl.'?symb='.$$unread{$ressymb}{symb};
 1706:             if ($feedurl =~ /bulletinboard/) {
 1707:                 $type = 'Discussion Board';
 1708:             }
 1709:             if ($$unread{$ressymb}{'enclink'}) {
 1710:                 $disclink = $$unread{$ressymb}{'enclink'}.'?symb='.$$unread{$ressymb}{'encsymb'};
 1711:             }
 1712:             my $css_class = $rowNum%2?' class="LC_odd_row"':'';
 1713:             my $lastpost = &Apache::lonnavmaps::timeToHumanString(
 1714:                                                $$unread{$ressymb}{'lastpost'});
 1715:             $r->print('<tr'.$css_class.'><td><a href="'.$disclink.'">'.$forum_title.'</a>&nbsp;</td><td>'.&mt($type).'&nbsp;</td>');
 1716:             if ($countunread eq 'on') {
 1717:                 my $unreadnum = $$unread{$ressymb}{'unreadcount'};
 1718:                 $r->print('<td>'.$lastpost.'</td><td class="LC_right_item">'.
 1719:                           $unreadnum.'&nbsp;</td>');
 1720:             } else {
 1721:                 $r->print('<td class="LC_right_item">'.$lastpost.'</td>');
 1722:             }
 1723:             $r->print("</tr>\n");
 1724:         }
 1725:     } elsif ($itemserror) {
 1726:         $r->print('<tr class="LC_empty_row"><td>'.$itemserror.'</td></tr>');
 1727:     } else {
 1728:         $r->print('<tr class="LC_empty_row"><td>'.$lt{'noun'}.'</td></tr>');
 1729:     }
 1730: }
 1731: 
 1732: sub display_coursenormalmail {
 1733:     my ($r,$msgcount,$newmsgs) = @_;
 1734:     my $lctype = lc(&Apache::loncommon::course_type());
 1735:     if ($msgcount > 0) {
 1736:         $r->print('<tr class="LC_info_row"><td class="LC_left_item">'.
 1737:                   &mt('Number').'</td><td>'.&mt('Subject').'</td><td>'.
 1738:                   &mt('Sender').'</td><td class="LC_right_item">'.
 1739:                   &mt('Date/Time').'</td></tr>');
 1740:         my $mailcount = 0;
 1741:         foreach my $msg (@{$newmsgs}) {
 1742:             $mailcount ++;
 1743:             my $css_class = $mailcount%2?' class="LC_odd_row"':'';
 1744:             $r->print('<tr'.$css_class.'><td>'.$mailcount
 1745:                       .'.&nbsp;</td><td><a href="/adm/email?display='
 1746:                       .$msg->{'msgid'}.'">'
 1747:                       .$msg->{'shortsub'}.'</a>&nbsp;&nbsp;</td><td>&nbsp;'
 1748:                       .$msg->{'from'}.':'.$msg->{'fromdom'}.'&nbsp;</td><td>'
 1749:                       .$msg->{'sendtime'}.'</td></tr>');
 1750:         }
 1751:     } else {
 1752:         $r->print('<tr class="LC_empty_row"><td>'.
 1753:                   &mt('No new '.$lctype.' messages').'</td></tr>');
 1754:     }
 1755: }
 1756: 
 1757: sub display_coursecritmail {
 1758:     my ($r,$critmsgcount,$critmsgs) = @_;
 1759:     my $lctype = lc(&Apache::loncommon::course_type());
 1760:     if ($critmsgcount > 0) {
 1761:         $r->print('<tr class="LC_info_row"><td class="LC_left_item">'.
 1762:                   &mt('Number').'</td><td>'.&mt('Subject').'</td><td>'.
 1763:                   &mt('Sender').'</td><td class="LC_right_item">'.
 1764:                   &mt('Date/Time').'</td></tr>');
 1765:         my $mailcount = 0;
 1766:         foreach my $msg (@{$critmsgs}) {
 1767:             $mailcount ++;
 1768:             my $css_class = $mailcount%2?' class="LC_odd_row"':'';
 1769:             $r->print('<tr'.$css_class.'><td>'.$mailcount.
 1770:                       '. &nbsp;</td><td><a href="/adm/email?folder=critical">'.
 1771:                       $msg->{'shortsub'}.'</a>&nbsp; &nbsp;</td><td>&nbsp;'.
 1772:                       $msg->{'from'}.':'.$msg->{'fromdom'}.'&nbsp;</td><td>'.
 1773:                       $msg->{'sendtime'}.'</td></tr>');
 1774:         }
 1775:     } else {
 1776:         $r->print('<tr class="LC_empty_row"><td>'.
 1777:                   &mt('No unread critical messages in '.$lctype).
 1778:                   '</td></tr>');
 1779:     }
 1780: }
 1781: 
 1782: sub cmp_title {
 1783:     my ($a,$b,$res_title) = @_;
 1784:     my ($atitle,$btitle) = (lc($$res_title{$a}),lc($$res_title{$b}));
 1785:     $atitle=~s/^\s*//;
 1786:     $btitle=~s/^\s*//;
 1787:     return $atitle cmp $btitle;
 1788: }
 1789: 
 1790: sub get_display_settings {
 1791:     my ($uname,$udom,$cid) = @_;
 1792:     my %settings = &Apache::lonnet::dump('nohist_whatsnew',$udom,$uname,$cid); 
 1793:     my ($tmp) = keys(%settings);
 1794:     if ($tmp=~ /^(con_lost|error|no_such_host)/i) {
 1795:         %settings = ();
 1796:         unless ($tmp =~ /^error: 2 /) {
 1797: 	    my $lctype = lc(&Apache::loncommon::course_type());
 1798:             &Apache::lonnet::logthis('Error retrieving whatsnew settings: '.
 1799:             $tmp.' for '.$uname.':'.$udom.' for '.$lctype.': '.$cid);
 1800:         }
 1801:     }
 1802:     return %settings;
 1803: }
 1804: 
 1805: sub store_display_settings {
 1806:     my ($uname,$udom,$cid,$checkallowed) = @_;
 1807:     my %whatsnew_settings;
 1808:     my $result;
 1809:     foreach my $key (keys(%{$checkallowed})) {
 1810: 	if ($key =~ /_section$/) { next; }
 1811:         if (exists($env{'form.display_'.$key})) {
 1812:             unless ($env{'form.display_'.$key} eq '') {
 1813:                 $whatsnew_settings{$cid.':'.$key} = $env{'form.display_'.$key};
 1814:             }
 1815:         }
 1816:     }
 1817:     if (keys(%whatsnew_settings)) {
 1818:         $result = &Apache::lonnet::put('nohist_whatsnew',\%whatsnew_settings,
 1819:                                                                  $udom,$uname);
 1820:     } else {
 1821:         $result = 'ok';
 1822:     }
 1823:     return $result;
 1824: }
 1825: 
 1826: sub store_interval_setting {
 1827:     my ($uname,$udom,$cid,$interval_titles) = @_;
 1828:     my %interval_settings = ();
 1829:     my $result;
 1830:     my $context = $env{'form.intervaltype'};
 1831:     if ($env{'form.interval'} ne '') {
 1832:         if ($context eq 'oldroles') {
 1833:             $interval_settings{$cid.':oldroleinterval'} = $env{'form.interval'};
 1834:         } elsif ($context eq 'newroles') {
 1835:             $interval_settings{$cid.':newroleinterval'} = $env{'form.interval'};
 1836:         } else {
 1837:             $interval_settings{$cid.':interval'} = $env{'form.interval'};
 1838:         }
 1839:         my $outcome = &Apache::lonnet::put('nohist_whatsnew',
 1840:                                              \%interval_settings,$udom,$uname);
 1841:         if ($outcome eq 'ok') {
 1842:             if (ref($interval_titles->{$context}) eq 'HASH') {
 1843:                 $result = &mt('New filter setting: [_1].','<b>'. 
 1844:                               $interval_titles->{$context}->{$env{'form.interval'}}.'</b>').'<br />';
 1845:             }
 1846:         } else {
 1847: 	    my $lctype = lc(&Apache::loncommon::course_type());
 1848:             &Apache::lonnet::logthis('Error saving whatsnew '.$context.' interval setting'.
 1849:                 ' '.$outcome.' for '.$uname.':'.$udom.' in '.$lctype.' '.$cid);
 1850:             $result = &mt('Unable to set interval to [_1] due to [_2].',
 1851:                          '<b>'.$interval_titles->{$context}->{$env{'form.interval'}}.'</b>',
 1852:                          '<tt>'.$outcome.'</tt>.<br />');
 1853:         }
 1854:     }
 1855:     return $result;
 1856: }
 1857: 
 1858: sub store_discussion_setting {
 1859:     my ($uname,$udom,$cid) = @_;
 1860:     my %discussion_settings;
 1861:     my $result;
 1862:     if (defined($env{'form.countunread'})) {
 1863:         $discussion_settings{$cid.':countunread'} = $env{'form.countunread'};
 1864:         my $outcome = &Apache::lonnet::put('nohist_whatsnew',
 1865:                                              \%discussion_settings,$udom,$uname);
 1866:         if ($outcome eq 'ok') {
 1867:             $result = &mt('Count unread posts in discussions display set to [_1]',
 1868:                   '<b>'.&mt($env{'form.countunread'}).'</b>').'<br />';
 1869:                                                                                   
 1870:         } else {
 1871: 	    my $lctype = lc(&Apache::loncommon::course_type());
 1872:             &Apache::lonnet::logthis('Error saving whatsnew countunread setting'.
 1873:                 ' '.$outcome.' for '.$uname.':'.$udom.' in '.$lctype.' '.$cid);
 1874:             $result = &mt('Unable to set "number unread posts display" to [_1]'.
 1875:                           ' due to [_2].',
 1876:                          '<b>'.&mt($env{'form.countunread'}).'</b>',
 1877:                          '<tt>'.$outcome.'</tt>.<br />');
 1878:         }
 1879:     }
 1880:     return $result;
 1881: }
 1882: 
 1883: sub store_courseinit_setting {
 1884:     my ($uname,$udom,$cid,$initpage) = @_;
 1885:     my %courseinit_settings;
 1886:     my $page_control;
 1887:     my $result;
 1888:     if (defined($env{'form.courseinit_control'})) {
 1889:         if ($env{'form.courseinit_control'} eq 'userpref') {
 1890:             $courseinit_settings{$cid.':courseinit'} = '';
 1891:             $page_control = 'global preferences';
 1892:         } else {
 1893:             if (defined($env{'form.courseinit_page'})) {
 1894:                 $courseinit_settings{$cid.':courseinit'} = 
 1895:                                                   $env{'form.courseinit_page'};
 1896:                 $page_control = 'course specific setting';
 1897:             }
 1898:         }
 1899:         if ($page_control) {
 1900: 	    my $lctype = lc(&Apache::loncommon::course_type());
 1901:             my $outcome = &Apache::lonnet::put('nohist_whatsnew',
 1902:                                            \%courseinit_settings,$udom,$uname);
 1903:             if ($outcome eq 'ok') {
 1904:                 if ($page_control eq 'global preferences') {
 1905:                     $result = &mt("Page displayed after role selection in $lctype now set by [_1]user's global preferences[_2].",'<b>','</b>');
 1906:                 } else {
 1907:                     $result = &mt('Page displayed after role selection in this '.$lctype.' set to [_1].'
 1908:                                  ,'<b>'.$$initpage{$env{'form.courseinit_page'}}.'</b>');
 1909:                 }
 1910:             } else {
 1911:                 &Apache::lonnet::logthis('Error saving whatsnew courseinit '.
 1912:                                          'setting: '.$outcome.' for '.$uname.
 1913:                                          ':'.$udom.' in '.$lctype.' '.$cid);
 1914:                 if ($page_control eq 'global preferences') {
 1915:                     $result = &mt('Unable to set control of page display to [_1]'.
 1916:                           ' due to [_2].',
 1917:                          '<b>'.$page_control.'</b>',
 1918:                          '<tt>'.$outcome.'</tt>.<br />');
 1919:                 } else {
 1920:                     $result = &mt('Unable to set page display, after role selection, for this '.$lctype.' to [_1] due to [_2].'
 1921:                                  ,'<b>'.$$initpage{$env{'form.courseinit_page'}}.'</b>'
 1922:                                  ,'<tt>'.$outcome.'</tt>')
 1923:                              .'<br />';
 1924:                 }
 1925:             }
 1926:         }
 1927:     }
 1928:     return $result;
 1929: }
 1930: 
 1931: sub start_box {
 1932:     my ($r,$show,$heading,$caller,$refpage) = @_;
 1933:     my %lt = &Apache::lonlocal::texthash( 
 1934:                        chth => 'Change thresholds?',
 1935:                        chin => 'Change interval?',
 1936:                        chop => 'Change options?',
 1937:     );
 1938:     my $showhide;
 1939:     if ($$show{$caller}) {
 1940:         $showhide = '<b><a href="javascript:change_display(document.visible.'.
 1941:                                'display_'.$caller.",'hide'".');">'.
 1942:                                &mt('Hide').'</a></b>';
 1943:    
 1944:     } else {
 1945:         $showhide = '<b><a href="javascript:change_display(document.visible.'.
 1946:                                'display_'.$caller.",'show'".');">'.
 1947:                                &mt('Show').'</a></b>';
 1948:     }
 1949:     
 1950:     $r->print('
 1951:          <table class="LC_nested_outer">
 1952:           <tr>
 1953:            <th class="LC_left_item">'.$$heading{$caller}.'</th>
 1954:            <th class="LC_right_item">'.$showhide.'</th>
 1955:           </tr>');
 1956:      if (($caller eq 'abovethreshold') && ($$show{$caller})) {
 1957:          if ($$show{$caller}) {
 1958:              $r->print('
 1959:               <tr>
 1960:                 <td class="LC_subheader" colspan="2"><a href="/adm/whatsnew?command=chgthreshold&refpage='.$refpage.'">'.$lt{'chth'}.'</a></td>
 1961:               </tr>');
 1962:          }
 1963:      } elsif (($caller eq 'versionchanges') && ($$show{$caller})) {
 1964:          if ($$show{$caller}) {
 1965:              $r->print('
 1966:               <tr>
 1967:                 <td class="LC_subheader" colspan="2"><a href="/adm/whatsnew?command=chginterval&refpage='.$refpage.'">'.$lt{'chin'}.'</a></td>
 1968:               </tr>');
 1969:          }
 1970:      } elsif ($caller eq 'coursediscussion') {
 1971:          if ($$show{$caller}) {
 1972:              $r->print('
 1973:               <tr>
 1974:                 <td class="LC_subheader" colspan="2"><a href="/adm/whatsnew?command=chgdisc&refpage='.$refpage.'">'.$lt{'chop'}.'</a></td>
 1975:               </tr>');
 1976:          }
 1977:      } elsif (($caller eq 'newroles') && ($$show{$caller})) {
 1978:          if ($$show{$caller}) {
 1979:              $r->print('
 1980:               <tr>
 1981:                 <td class="LC_subheader" colspan="2"><a href="/adm/whatsnew?command=chgnewroleinterval&refpage='.$refpage.'">'.$lt{'chin'}.'</a></td>
 1982:               </tr>');
 1983:          }
 1984:      } elsif (($caller eq 'oldroles') && ($$show{$caller})) {
 1985:          if ($$show{$caller}) {
 1986:              $r->print('
 1987:               <tr>
 1988:                 <td class="LC_subheader" colspan="2"><a href="/adm/whatsnew?command=chgoldroleinterval&refpage='.$refpage.'">'.$lt{'chin'}.'</a></td>
 1989:               </tr>');
 1990:          }
 1991:      }
 1992:     $r->print('
 1993:               <tr>
 1994:                <td colspan="2">
 1995:                 <table class="LC_nested">
 1996: ');
 1997:     return;
 1998: }
 1999: 
 2000: sub end_box {
 2001:     my ($r) = shift;
 2002:     $r->print('
 2003:    </table>
 2004:   </td>
 2005:  </tr>
 2006: </table><br />');
 2007:     return;
 2008: }
 2009: 
 2010: 1;

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