File:  [LON-CAPA] / loncom / interface / lonwhatsnew.pm
Revision 1.64: download - view: text, annotated - select for diffs
Thu Nov 23 00:02:38 2006 UTC (17 years, 6 months ago) by banghart
Branches: MAIN
CVS tags: HEAD
	Bug 5085. Show default values when updating original threshold
		  settings.

    1: #
    2: # $Id: lonwhatsnew.pm,v 1.64 2006/11/23 00:02:38 banghart 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::Constants qw(:common :http);
   40: use Time::Local;
   41: use GDBM_File;
   42: use lib '/home/httpd/lib/perl/';
   43: use LONCAPA;
   44: 
   45: #----------------------------
   46: # handler
   47: #
   48: #----------------------------
   49: 
   50: sub handler {
   51:     my $r = shift;
   52:     if ($r->header_only) {
   53:         &Apache::loncommon::content_type($r,'text/html');
   54:         $r->send_http_header;
   55:         return OK;
   56:     }
   57:     &Apache::loncommon::get_unprocessed_cgi(
   58:                                    $ENV{'QUERY_STRING'},['command','refpage']);
   59: 
   60:     my $command = $env{'form.command'};
   61:     my $refpage = $env{'form.refpage'};
   62: 
   63:     my %checkallowed = ( coursenormalmail => 1,
   64: 			 coursecritmail => 1, );
   65:     foreach my $perm_check (['whn','whatsnew',1],
   66: 			    ['pch','coursediscussion',1],
   67: 			    ['mgr','handgrading',1],
   68: 			    ['vgr','abovethreshold',1],
   69: 			    ['opa','haserrors',1],
   70: 			    ['mdc','versionchanges',0],
   71: 			    ) {
   72: 	my ($perm,$key,$check_section) = @{ $perm_check };
   73: 	my $scope = $env{'request.course.id'};
   74: 	if (!($checkallowed{$key} = &Apache::lonnet::allowed($perm,$scope))) {
   75: 	    $scope .= '/'.$env{'request.course.sec'};
   76: 	    if ( $check_section ) {
   77: 		$checkallowed{$key} = &Apache::lonnet::allowed($perm,$scope);
   78: 	    }
   79: 	    if ($checkallowed{$key}) {
   80: 		$checkallowed{$key.'_section'} = $env{'request.course.sec'};
   81: 	    }
   82: 	}
   83:     }
   84: 
   85:     if ( ! $env{'request.course.fn'} || ! $checkallowed{'whatsnew'}) {
   86:         # Not in a course, or no whn priv in course
   87:         $env{'user.error.msg'}="/adm/whatsnew::whn:0:0:Cannot display what's new page";
   88:         return HTTP_NOT_ACCEPTABLE;
   89:     }
   90: 
   91:     &Apache::loncommon::content_type($r,'text/html');
   92:     $r->send_http_header;
   93: 
   94:     $r->print(&display_header($command,\%checkallowed));
   95: 
   96:     &Apache::lonhtmlcommon::clear_breadcrumbs();
   97:     &Apache::lonhtmlcommon::add_breadcrumb
   98:             ({href=>'/adm/whatsnew',
   99:               text=>"Display Action Items"});
  100:     if (($command eq 'chgthreshold') && $checkallowed{'abovethreshold'}) {
  101:         &Apache::lonhtmlcommon::add_breadcrumb
  102:             ({href=>'/adm/whatsnew?command=chgthreshold&refpage='.$refpage,
  103:               text=>"Change thresholds"});
  104:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
  105:             ("What's New?",#'Course_Action_Items_Thresholds'
  106: 	     ));
  107:     } elsif (($command eq 'chginterval') && $checkallowed{'versionchanges'} ) {
  108:         &Apache::lonhtmlcommon::add_breadcrumb
  109:             ({href=>'/adm/whatsnew?command=chginterval&refpage='.$refpage,
  110:               text=>"Change interval"});
  111:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
  112:             ("What's New?",#'Course_Action_Items_Intervals'
  113: 	     ));
  114:     } elsif (($command eq 'chgdisc') && $checkallowed{'coursediscussion'}) {
  115:         &Apache::lonhtmlcommon::add_breadcrumb
  116:             ({href=>'/adm/whatsnew?command=chgdisc&refpage='.$refpage,
  117:               text=>"Change discussion display"});
  118:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
  119:             ("What's New?",#'Course_Action_Items_Intervals'
  120: 	     ));
  121:     } elsif ($command eq 'courseinit') {
  122:         &Apache::lonhtmlcommon::add_breadcrumb
  123:             ({href=>'/adm/whatsnew?command=courseinit&refpage='.$refpage,
  124:               text=>"Course initialization preference"});
  125:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
  126:             ("What's New?",#'Course_Action_Items_Initialization'
  127: 	     ));
  128:     } else {
  129:         $r->print(&Apache::lonhtmlcommon::breadcrumbs
  130:             ("What's New?",#'Course_Action_Items_Display'
  131: 	     ));
  132:     }
  133:     &display_main_box($r,$command,$refpage,\%checkallowed);
  134:     return OK;
  135: }
  136: 
  137: #------------------------------
  138: # display_main_box
  139: #
  140: # Display all the elements within the main box
  141: #------------------------------
  142:                                                                                 
  143: sub display_main_box {
  144:     my ($r,$command,$refpage,$checkallowed) = @_;
  145:     my $domain=&Apache::loncommon::determinedomain();
  146:     my $function = &Apache::loncommon::get_users_function();
  147:     my $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
  148:     my $lctype = lc(&Apache::loncommon::course_type());
  149:     $r->print('<table width="100%" border="0" cellpadding="5" cellspacing="0"><tr><td width="100%">');
  150: 
  151:     my %threshold_titles = &Apache::lonlocal::texthash (
  152:                          av_attempts => 'Average number of attempts',
  153:                          degdiff => 'Degree of difficulty',
  154:                          numstudents => 'Total number of students with submissions',
  155:     );
  156: 
  157:     my %interval_titles = &Apache::lonlocal::texthash (
  158:                             -1 => "since start of $lctype",
  159:                        2592000 => 'since last month',
  160:                         604800 => 'since last week',
  161:                          86400 => 'since yesterday',
  162:     );
  163: 
  164:     my %initpage = &Apache::lonlocal::texthash (
  165:                      firstres => "first resource in the $lctype",
  166:                      whatsnew => "what's new? page",
  167:                      userpref => 'your general user preferences',
  168:                      coursespecific => "specific setting for this $lctype",
  169:                    );
  170:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
  171:     my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
  172: 
  173:     if (($command eq 'chgthreshold') 
  174: 	&& $checkallowed->{'abovethreshold'}) {
  175:         &display_threshold_config($r,$refpage,$tabbg,\%threshold_titles,
  176:                                                                    $cdom,$crs);
  177:     } elsif (($command eq 'chginterval') 
  178: 	     && $checkallowed->{'versionchanges'}) {
  179:         &display_interval_config($r,$refpage,\%interval_titles);
  180:     } elsif (($command eq 'chgdisc') 
  181: 	     && $checkallowed->{'coursediscussion'}) {
  182:         &display_discussion_config($r,$refpage);
  183:     } elsif ($command eq 'courseinit') {
  184:         &courseinit_config($r,$refpage,\%initpage);
  185:     } else {
  186:         &display_actions_box($r,$tabbg,$command,$refpage,\%threshold_titles,
  187:                         \%interval_titles,\%initpage,$cdom,$crs,$checkallowed);
  188:     }
  189:     my $end_page = &Apache::loncommon::end_page();
  190:     $r->print(<<END_OF_BLOCK);
  191:   </td>
  192:  </tr>
  193: </table><br />
  194: $end_page
  195: END_OF_BLOCK
  196: }
  197: 
  198: #-------------------------------
  199: # display_header
  200: #
  201: # Display the header information and set
  202: # up the HTML
  203: #-------------------------------
  204: 
  205: sub display_header {
  206:     my ($command,$checkallowed) = @_;
  207:     
  208:     my $scripttag;
  209:     unless ($command eq 'chgthreshold' || $command eq 'chginterval') {
  210:        $scripttag = <<"END";
  211: <script type="text/javascript">
  212: function change_display(caller,change) {
  213:     caller.value = change;
  214:     document.visible.submit(); 
  215: }
  216: 
  217: function changeAll(change) {
  218: END
  219:         foreach my $item (keys(%{$checkallowed})) {
  220: 	    if ($item =~ /_section$/) { next; }
  221:             if ($$checkallowed{$item}) {
  222:                 $scripttag.='document.visible.display_'.$item.'.value=change'.
  223:                             "\n";
  224:             }
  225:         }
  226:         $scripttag.='document.visible.submit();
  227: }
  228: </script>
  229: ';
  230:     }
  231:     my $course_type=&Apache::loncommon::course_type();
  232:     return &Apache::loncommon::start_page($course_type.' Action Items',
  233: 					  $scripttag);
  234: }
  235: 
  236: #-------------------------------
  237: # display_actions_box
  238: #
  239: # Display the action items
  240: #
  241: #-------------------------------
  242:                                                                                 
  243: sub display_actions_box {
  244:     my ($r,$tabbg,$command,$refpage,$threshold_titles,$interval_titles,
  245:                                       $initpage,$cdom,$crs,$checkallowed) = @_;
  246:     my $rowColor1 = "#ffffff";
  247:     my $rowColor2 = "#eeeeee";
  248: 
  249:     my $udom = $env{'user.domain'};
  250:     my $uname = $env{'user.name'};
  251:     my $cid = $env{'request.course.id'};
  252:     my $crstype = &Apache::loncommon::course_type();
  253:     my $lctype = lc($crstype);
  254:     my %stulabel = (
  255:                     'Course' => 'students',
  256:                     'Group' => 'members',
  257:                    );
  258:     my %lt = &Apache::lonlocal::texthash(
  259:                  'yacc' => 'You are accessing an invalid course',
  260:                  'gtfr' => 'Go to first resource',
  261:                  'hial' => 'Hide all',
  262:                  'shal' => 'Show all',
  263:     );
  264: 
  265:     my %unread = ();
  266:     my %ungraded = ();
  267:     my %bombed = ();
  268:     my %triggered = ();
  269:     my %changed = ();
  270:     my @newmsgs = ();
  271:     my @critmsgs = ();
  272:     my @newdiscussions = ();
  273:     my @tograde = ();
  274:     my @bombs = ();
  275:     my @warnings = ();
  276:     my $msgcount = 0;
  277:     my $critmsgcount = 0;
  278: 
  279:     my %res_title = ();
  280:     my %show = ();
  281:     my $needitems = 0;
  282:     my $boxcount = 0;
  283: 
  284:     my $result;
  285:     if ($command eq 'newcourseinit') {
  286:         $result = &store_courseinit_setting($uname,$udom,$cid,$initpage);
  287:     }
  288: 
  289:     my %threshold = ();
  290:     my %pagedesc = &Apache::lonlocal::texthash (
  291:                      firstres => 'First resource',
  292:                      whatsnew => "What's New? page",
  293:                      userpref => 'user preference',
  294:                      coursespecific => $lctype.' only',
  295:                      default => 'default',
  296:                    );
  297: 
  298:     my ($initcontrol,$initdisp) = &curr_courseinit();
  299:     my $currinit = $pagedesc{$initdisp}.' ('.$pagedesc{$initcontrol}.')';
  300: 
  301:     unless ($cid) {
  302:         $r->print('<br /><b><center>'.$lt{'yacc'}.'</center></b><br /><br />');
  303:         return;
  304:     }
  305: 
  306:     if ($refpage eq 'start') {
  307:         if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
  308:             &GDBM_READER(),0640)) {
  309:             my $furl=$bighash{'first_url'};
  310:             untie(%bighash);
  311:             $r->print('<font size="+1"><a href="'.$furl.'">'.$lt{'gtfr'}.
  312:                   '</a></font><br />');
  313:         }
  314:     }
  315:     $r->print(&mt('Page set to be displayed after you have selected a role in this '.$lctype).
  316:               '. <nobr>'.&mt('Currently: <i>[_1]</i>',$currinit).'.&nbsp;&nbsp;'.
  317:               &mt('<b>Change</b> for just <a href="/adm/whatsnew?command=courseinit&refpage=[_1]">this '.$lctype.'</a>',$refpage).' '.
  318:               &mt('or for all <a href="/adm/preferences?action=changecourseinit&refpage=[_1]">your courses</a>',$refpage).'</nobr><br /><hr />');
  319: 
  320:     if ($command eq 'reset') {
  321:         $result = &process_reset($cdom,$crs);
  322:     } elsif ($command eq 'update') {
  323:         $result = &process_update($uname,$udom,$threshold_titles);
  324:     } elsif ($command eq 'newinterval') {
  325:         $result = &store_interval_setting($uname,$udom,$cid,$interval_titles);
  326:     } elsif ($command eq 'newdiscconf') {
  327:         $result = &store_discussion_setting($uname,$udom,$cid);
  328:     }
  329: 
  330:     my $store_result=&store_display_settings($uname,$udom,$cid,$checkallowed);
  331: 
  332:     unless ($store_result eq 'ok') { 
  333:         &Apache::lonnet::logthis('Error storing whatsnew settings: '.
  334:             $store_result.' for '.'user '.$uname.':'.$udom.' in '.$lctype.' '.$cid);
  335:         $result .= &mt('Unable to store visibility settings due to [_1]',
  336:                        $store_result); 
  337:     }
  338: 
  339:     if ($result) {
  340:         $r->print($result.'<hr width="100%" />');
  341:     }
  342:     $r->rflush();
  343: 
  344: 
  345:     my %display_settings = &get_display_settings($uname,$udom,$cid);
  346:     my $timediff = $display_settings{$cid.':interval'};
  347:     unless (defined($timediff)) { $timediff = 604800; } 
  348:     my $now = time;
  349:     my $interval = $$interval_titles{$timediff};
  350:     if ($timediff == -1) {
  351:         $timediff = time;
  352:     } 
  353:     my $starttime = $now - $timediff;
  354:     my $countunread = $display_settings{$cid.':countunread'};
  355:     unless (defined($countunread)) {
  356:         $countunread = 'on';
  357:     }
  358: 
  359:     my %headings = &Apache::lonlocal::texthash(
  360:                 coursediscussion =>  'Unread '.$lctype.' discussion posts',
  361:                 handgrading =>  'Problems requiring handgrading',
  362:                 haserrors => 'Problems with errors',
  363:                 versionchanges => 'Resources in '.$lctype.' with version changes '.$interval,
  364:                 coursenormalmail => 'New '.$lctype.' messages',
  365:                 coursecritmail => 'New critical messages in '.$lctype,
  366:     );
  367: 
  368:     if ($$checkallowed{'abovethreshold'}) {
  369:         &get_curr_thresholds(\%threshold,$uname,$udom,$cid,$cdom,$crs);
  370:     }
  371: 
  372:     $headings{'abovethreshold'} = 
  373: 	&mt('Problems with av. attempts &ge; [_1] or deg. difficulty &ge; [_2] <br /> and total number of '.$stulabel{$crstype}.' with submissions &ge; [_3]',
  374: 	    $threshold{'av_attempts'},$threshold{'degdiff'},
  375: 	    $threshold{'numstudents'});
  376: 
  377:     my @actionorder = ('handgrading','haserrors','abovethreshold','versionchanges','coursediscussion','coursenormalmail','coursecritmail');
  378: 
  379:     foreach my $key (keys(%{$checkallowed})) {
  380: 	if ($key =~ /_section$/) { next; }
  381:         $show{$key} = 0;
  382:         if ($$checkallowed{$key}) {
  383:             unless ($display_settings{$cid.':'.$key} eq 'hide') {
  384:                 $show{$key} = 1;
  385:             }
  386:         }
  387:     }
  388: 
  389:     foreach my $item (@actionorder) {
  390:         unless ($item eq 'coursenormalmail' || $item eq 'coursecritmail') {
  391:             if ($show{$item}) {
  392:                 $needitems = 1;
  393:                 last;
  394:             }
  395:         }
  396:     }
  397: 
  398:     if ($needitems) {
  399:         &getitems(\%unread,\%ungraded,\%bombed,\%triggered,\%changed,\@newdiscussions,\@tograde,\@bombs,\@warnings,$rowColor1,$rowColor2,\%threshold,$cdom,$crs,\%res_title,\%show,$starttime,$countunread);
  400:     }
  401:     if ($show{'coursenormalmail'}) {
  402:         $msgcount = &getnormalmail(\@newmsgs);
  403:     }
  404:     if ($show{'coursecritmail'}) {
  405:         $critmsgcount = &getcritmail(\@critmsgs);
  406:     }
  407: 
  408:     $r->print(qq|<a href="javascript:changeAll('hide');">$lt{'hial'}</a>
  409:      &nbsp;&nbsp;<a href="javascript:changeAll('show');">$lt{'shal'}</a>
  410:      <form method="post" name="visible" action="/adm/whatsnew">\n|);
  411:     foreach my $item (keys(%{$checkallowed})) {
  412: 	if ($item =~ /_section$/) { next; }
  413:         if ($$checkallowed{$item}) {
  414:             $r->print('<input type="hidden" name="display_'.$item.'" />'."\n");
  415:         }
  416:     }
  417: 
  418:     $r->print('<input type="hidden" name="refpage" value="'.$refpage.'"></form><br /><table border="0" width="100%" cellpadding="2" cellspacing="4"><tr><td align="left" valign="top" width="45%">');
  419: 
  420:     my $displayed = 0;
  421:     my $totalboxes = 0;
  422:     foreach my $key (keys(%{$checkallowed})) {
  423: 	if ($key =~ /_section$/) { next; }
  424: 	if ($key eq 'whatsnew' ) { next; } # whatsnew check creates no box
  425:         if ($$checkallowed{$key}) {
  426:             $totalboxes ++;
  427:         }
  428:     }
  429:     my $halfway = int($totalboxes/2) + $totalboxes%2;
  430:     foreach my $actionitem (@actionorder) {
  431:         if ($$checkallowed{$actionitem}) {
  432:             if ($displayed == $halfway) {
  433:                 $r->print('</td><td width="6%">&nbsp;</td><td align="left" valign="top" width="47%">');
  434:             }
  435:             &display_launcher($r,$actionitem,$refpage,$checkallowed,$tabbg,$rowColor1,$rowColor2,\%show,\%headings,\%res_title,\@tograde,\%ungraded,\@bombs,\%bombed,\%changed,\@warnings,\%triggered,\@newdiscussions,\%unread,$msgcount,\@newmsgs,$critmsgcount,\@critmsgs,$interval,$countunread);
  436:             $displayed ++; 
  437:         }
  438:     }
  439:     $r->print('
  440:            </table>
  441:           </td>
  442:          </tr>
  443:         </table>
  444:       </td>
  445:     </tr>
  446:    </table>');
  447: }
  448: 
  449: #-------------------------------
  450: # display_threshold_config
  451: #
  452: # Display the threshold setting screen 
  453: #
  454: #-------------------------------
  455:                                                                                 
  456: sub display_threshold_config {
  457:     my ($r,$refpage,$tabbg,$threshold_titles,$cdom,$crs) = @_;
  458:     my $uname = $env{'user.name'};
  459:     my $udom = $env{'user.dom'};
  460:     my $cid = $env{'request.course.id'};
  461:     my %threshold = ();
  462:     my $rowColor1 = "#ffffff";
  463:     my $rowColor2 = "#eeeeee";
  464:     my $rowColor;
  465: 
  466:     my @thresholditems = ("av_attempts","degdiff","numstudents");
  467:     my %threshold_titles = &Apache::lonlocal::texthash(
  468:                          av_attempts => 'Average number of attempts',
  469:                          degdiff => 'Degree of difficulty',
  470:                          numstudents => 'Total number of students with submissions',
  471:                          );
  472:     &get_curr_thresholds(\%threshold,$uname,$udom,$cid,$cdom,$crs);
  473: 
  474:     $r->print('<br /><form name="thresholdform" method="post" action="/adm/whatsnew">
  475:         <table border="0" cellpadding="2" cellspacing="4">
  476:          <tr>
  477:           <td align="left" valign="top" width="45%">
  478:            <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000">
  479:             <tr>
  480:              <td>
  481:                <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000">
  482:                 <tr>
  483:                 <td bgcolor="#ffffff">
  484:                  <table cellspacing="0" cellpadding="4" border="0">
  485:      <tr bgcolor="'.$tabbg.'">
  486:       <th>Threshold Name</th>
  487:       <th>Current value</th>
  488:       <th>Change?</th>
  489:      </tr>');
  490:     my $rowNum =0;
  491:     foreach my $type (@thresholditems) {
  492:         my $parameter = $env{'request.course.id'}.':threshold_'.$type;
  493: # onchange is javascript to automatically check the 'Set' button.
  494:         my $onchange = 'onFocus="javascript:window.document.forms'.
  495:               "['thresholdform'].elements['".$parameter."_setparmval']".
  496:               '.checked=true;"';
  497:         if ($rowNum %2 == 1) {
  498:             $rowColor = $rowColor1;
  499:         } else {
  500:             $rowColor = $rowColor2;
  501:         }
  502:         $r->print('
  503:      <tr bgcolor="'.$rowColor.'">
  504:       <td>'.$threshold_titles{$type}.'</td>
  505:       <td>'.&Apache::lonhtmlcommon::textbox($parameter.'_value',
  506:                                             $threshold{$type},
  507:                                             10,$onchange).'</td>
  508:       <td>'
  509:            .&Apache::lonhtmlcommon::checkbox($parameter.'_setparmval').
  510:       '</td>
  511:      </tr>');
  512:         $rowNum ++;
  513:     }
  514:     $r->print('</table></td></tr></table></td></tr></table>
  515:            <br /><input type="submit" name="threshold" value="Make changes" />
  516:                  <input type="hidden" name="command" value="update" />
  517:                  <input type="hidden" name="refpage" value="'.$refpage.'" />
  518:                </form>');
  519: }
  520: 
  521: #-------------------------------
  522: # display_interval_config
  523: #
  524: # Display the interval setting screen
  525: #
  526: #-------------------------------
  527:                                                                                    
  528: sub display_interval_config {
  529:     my ($r,$refpage,$interval_titles) = @_;
  530:     my $lctype = lc(&Apache::loncommon::course_type());
  531:     my $current = &get_current($env{'user.name'},$env{'user.domain'},
  532:                                 $env{'request.course.id'},'interval');
  533:     $r->print('<br />'.&mt('Choose the time window to use for display of version changes for resources in the '.$lctype.'.'));
  534:     unless ($current eq '') {
  535:         $r->print(' '.&mt('Current value is [_1]','<b>'.
  536:                   $$interval_titles{$current}.'</b>.'));
  537:     }
  538:     $r->print('<br /><br />
  539: <form method="post" name="intervalswitch" action="/adm/whatsnew">
  540: <input type="hidden" name="command" value="newinterval" />
  541: <input type="hidden" name="refpage" value="'.$refpage.'" />
  542: <select name="interval">
  543: ');
  544:     foreach my $key (reverse sort ({$a cmp $b} (keys(%{$interval_titles})))) {
  545:         $r->print('<option value="'.$key.'">Version changes '.$$interval_titles{$key}.
  546:                   '</option>'."\n");
  547:     }
  548:     $r->print('</select>&nbsp;&nbsp;
  549:                <input type="submit" name="display" value="'.
  550:                &mt('Change interval').'" /></form>');
  551:     return;
  552: }
  553: 
  554: #----------------------------------------------
  555: # display_discussion_config
  556: #
  557: # Display the discussion display setting screen
  558: #
  559: #----------------------------------------------
  560:                                                                                   
  561: sub display_discussion_config {
  562:     my ($r,$refpage) = @_;
  563:     my $current = &get_current($env{'user.name'},$env{'user.domain'},
  564:                                 $env{'request.course.id'},'countunread');
  565:     if ($current eq '') {
  566:         $current = 'on';
  567:     }
  568:     my %opposite = ( 
  569:                       'on' => 'off',
  570:                       'off' => 'on',
  571:                     );
  572:     $r->print('<script type="text/javascript">
  573: function toggle_countunread(choice) {
  574:     if (choice == "unchanged") {
  575:         document.discussionswitch.command.value = "";
  576:     }
  577:     document.discussionswitch.submit();
  578: }
  579: </script>');
  580:     $r->print('<br />'.&mt('Choose whether or not to display a count of the number of new posts for each resource or bulletin board which has unread posts.').'<br />'.&mt('This can increase the time taken to gather data for the [_1] page by a few seconds.',"<i>What's New?</i>").'&nbsp;&nbsp;'.&mt('Currently set to [_1].','<b>'.$current.'</b>'));
  581:     $r->print('<br /><br />
  582: <form method="post" name="discussionswitch" action="/adm/whatsnew">
  583: <input type="hidden" name="command" value="newdiscconf" />
  584: <input type="hidden" name="refpage" value="'.$refpage.'" />
  585: <input type="hidden" name="countunread" value="'.$opposite{$current}.'" />
  586: ');
  587:     $r->print('<br/>
  588:                <input type="button" name="display" value="'.
  589:                &mt('Change to [_1]',$opposite{$current}).'" 
  590:                onclick="javascript:toggle_countunread('."'change'".')" />
  591:                &nbsp;&nbsp;&nbsp;&nbsp;&nbsp&nbsp;&nbsp;
  592:                <input type="button" name="nochange" value="'.
  593:                &mt("No change").'" 
  594:                onclick="javascript:toggle_countunread('."'unchanged'".')" />
  595:                </form>');
  596:     return;
  597: }
  598: 
  599: #---------------------------------------------------
  600: # courseinit_config
  601: #
  602: # Set page displayed when course loads after 
  603: # selecting a role in the course from the roles page. 
  604: #
  605: #---------------------------------------------------
  606: 
  607: sub courseinit_config {
  608:     my ($r,$refpage,$initpage) = @_;
  609:     my ($control,$current) = &curr_courseinit();
  610:     my @chgstate = ('userpref','coursespecific');
  611:     my @chgentry = ('firstres','whatsnew');
  612:     my $lctype = lc(&Apache::loncommon::course_type());
  613:     my %lt = &Apache::lonlocal::texthash(
  614:                              'chwp' => "Choose which page will be displayed when you enter this $lctype after selecting a role.",
  615:                              'cuva' => 'Current value is determined by',
  616:                              'anis' => 'and is set to display',
  617:                              'padc' => 'Page display controlled by',
  618:                              'chce' => 'Choose '.$lctype.' entry',
  619:                              'moce' => 'Modify '.$lctype.' entry',
  620:     );
  621:     $r->print(<<"END"); 
  622: <br />$lt{'chwp'}
  623: <br />$lt{'cuva'}: <b>
  624: $$initpage{$control}</b> $lt{'anis'} <b>
  625: $$initpage{$current}</b>.<br /><br />
  626: <form method="post" name="courseinitswitch" action="/adm/whatsnew">
  627: <input type="hidden" name="command" value="newcourseinit" />
  628: <input type="hidden" name="refpage" value="$refpage" />
  629: $lt{'padc'}:&nbsp;&nbsp;
  630: END
  631:     foreach my $choice (@chgstate) {
  632:         my $chkstring;
  633:         if ($choice eq $control) {
  634:             $chkstring = ' checked="checked" ';
  635:         }  
  636:         $r->print('<nobr><label><input type="radio" name="courseinit_control" value="'.
  637:                    $choice.'"'.$chkstring.'/>'.$$initpage{$choice}.
  638:                    '&nbsp;&nbsp;</label></nobr>');
  639:     }
  640:     $r->print('<br /><br />'.&mt('If').' '.$$initpage{'coursespecific'}.
  641:               ' - <br />'.$lt{'chce'}.": \n");
  642:     foreach my $choice (@chgentry) {
  643:         my $chkstring;
  644:         if (($choice eq $current) && ($control eq 'coursespecific')) {
  645:             $chkstring = ' checked="checked" ';
  646:         }
  647:         $r->print('<nobr><label><input type="radio" name="courseinit_page" value="'.
  648:                   $choice.'"'.$chkstring.'/>'.$$initpage{$choice}.
  649:                   '&nbsp;&nbsp;</label></nobr>');
  650:     }
  651:     $r->print('<br /><br /><input type="submit" name="display" value="'.
  652:                $lt{'moce'}.'" /></form>');
  653:     return;
  654: }
  655: 
  656: sub curr_courseinit {
  657:     my $current = &get_current($env{'user.name'},$env{'user.domain'},
  658:                                 $env{'request.course.id'},'courseinit');
  659:     my $control;
  660:     if ($current) {
  661:         $control = 'coursespecific';
  662:     } else {
  663:         $control = 'userpref';
  664:         my %userenv = &Apache::lonnet::get('environment',
  665:                                                       ['course_init_display']);
  666:         if (exists($userenv{'course_init_display'})) {
  667:             $current = $userenv{'course_init_display'};
  668:         }
  669:         unless ($current) {
  670:             $current = 'whatsnew';
  671:         }
  672:     }
  673:     return ($control,$current);
  674: }
  675: 
  676: sub display_launcher {
  677:     my ($r,$action,$refpage,$checkallowed,$tabbg,$rowColor1,$rowColor2,$show,
  678:         $headings,$res_title,$tograde,$ungraded,$bombs,$bombed,$changed,
  679:         $warnings,$triggered,$newdiscussions,$unread,$msgcount,$newmsgs,
  680:                           $critmsgcount,$critmsgs,$interval,$countunread) = @_;
  681: 
  682:     if ($$checkallowed{$action}) {
  683:         &start_box($r,$tabbg,$show,$headings,$action,$refpage,$action);
  684:         if ($$show{$action}) {
  685:             if ($action eq 'handgrading') {    # UNGRADED ITEMS
  686:                 &display_handgrade($r,$tograde,$rowColor1,$rowColor2,
  687:                                                                     $ungraded);
  688:             } elsif ($action eq 'haserrors') { # BOMBS
  689:                 &display_haserrors($r,$bombs,$rowColor1,$rowColor2,$bombed,
  690:                                                                    $res_title);
  691:             } elsif ($action eq 'versionchanges') { # VERSION CHANGES
  692:                 &display_versionchanges($r,$changed,$res_title,$rowColor1,
  693:                                                          $rowColor2,$interval);
  694: 
  695:             } elsif ($action eq 'abovethreshold') { # DEGDIFF/AV. TRIES TRIGGERS
  696:                 &display_abovethreshold($r,$refpage,$warnings,$triggered,
  697: 					$res_title);
  698:             } elsif ($action eq 'coursediscussion') { # UNREAD COURSE DISCUSSION
  699:                 &display_coursediscussion($r,$newdiscussions,$unread,
  700:                                 $countunread,$res_title,$rowColor1,$rowColor2);
  701:             } elsif ($action eq 'coursenormalmail') { # NORMAL MESSAGES
  702:                 &display_coursenormalmail($r,$msgcount,$newmsgs,$rowColor1,
  703:                                                                    $rowColor2);
  704:             } elsif ($action eq 'coursecritmail') { # CRITICAL MESSAGES
  705:                 &display_coursecritmail($r,$critmsgcount,$critmsgs,$rowColor1,
  706:                                                                    $rowColor2);
  707:             }
  708:         }
  709:         &end_box($r);
  710:     }
  711:     return;
  712: }
  713: 
  714: sub getitems {
  715:     my ($unread,$ungraded,$bombed,$triggered,$changed,$newdiscussions,
  716:         $tograde,$bombs,$warnings,$rowColor1,$rowColor2,$threshold,$cdom,$crs,
  717:                                  $res_title,$show,$starttime,$countunread) = @_;
  718:     my $navmap = Apache::lonnavmaps::navmap->new();
  719:     # force retrieve Resource to seed the part id cache we'll need it later
  720:     my @allres=$navmap->retrieveResources(undef,
  721:                      sub {if ($_[0]->is_problem) { $_[0]->parts();} return 1;});
  722:     my %resourcetracker;
  723:     my $discussiontime;
  724: 
  725: # Resource version changes
  726:     if ($$show{'versionchanges'}) {
  727:         &checkversions($cdom,$crs,$navmap,$changed,$starttime);
  728:     }
  729: 
  730:     if ($$show{'abovethreshold'}) {
  731:         %resourcetracker =  &Apache::lonnet::dump('nohist_resourcetracker',
  732:                                                                    $cdom,$crs);
  733:     }
  734: 
  735:     foreach my $resource (@allres) {
  736:         my $result = '';
  737:         my $applies = 0;
  738:         my $symb = $resource->symb();
  739:         %{$$bombed{$symb}} = ();
  740:         %{$$ungraded{$symb}} = ();
  741:         %{$$triggered{$symb}} = ();
  742:         $$triggered{$symb}{numparts} = 0;
  743:         my $title = $resource->compTitle();
  744:         $$res_title{$symb} = $title;
  745:         my $ressymb = $resource->wrap_symb();
  746: 
  747: # Check if there are unread discussion postings
  748:         if ($$show{'coursediscussion'}) {
  749:             &check_discussions($resource,$symb,$ressymb,$title,
  750: 			       $newdiscussions,$unread,$countunread);
  751:         }
  752: 
  753: # Check for ungraded problems
  754:         if ($resource->is_problem()) {
  755:             if ($$show{'handgrading'}) {
  756:                 &check_handgraded($resource,$symb,$title,$cdom,$crs,$ungraded,
  757:                                                                      $tograde);
  758:             }
  759:         }
  760: 
  761: # Check for bombs
  762:         if ($$show{'haserrors'}) {
  763:             &check_bombed($resource,$symb,$title,$bombs,$bombed);
  764:         }
  765: 
  766: # Maxtries and degree of difficulty for problem parts, unless handgradeable
  767:         if ($$show{'abovethreshold'}) {  
  768:             &check_thresholds($resource,$symb,\%resourcetracker,
  769: 			      $triggered,$threshold,$warnings);
  770:         }
  771: 
  772:     }
  773: }
  774: 
  775: sub check_discussions {
  776:     my ($resource,$symb,$ressymb,$title,$newdiscussions,$unread,
  777: 	$countunread) = @_;
  778: 
  779:     if (!$resource->hasDiscussion()) { return; }
  780: 
  781:     %{$$unread{$ressymb}} = ();
  782:     $$unread{$ressymb}{'title'} = $title;
  783:     $$unread{$ressymb}{'symb'} = $symb;
  784:     push(@{$newdiscussions}, $ressymb);
  785:     
  786:     $$unread{$ressymb}{'lastpost'} = $resource->last_post_time();
  787:     
  788:     if ($countunread eq 'on') {
  789: 	$$unread{$ressymb}{'unreadcount'} = $resource->unread_discussion();
  790:     }
  791: }
  792: 
  793: sub check_handgraded {
  794:     my ($resource,$symb,$title,$cdom,$cnum,$ungraded,$tograde) = @_;
  795:     if ($resource->is_problem()) {
  796:         my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
  797:         my $partlist=$resource->parts();
  798:         my $handgradeable;
  799:         foreach my $part (@$partlist) {
  800:             if ($resource->handgrade($part) eq 'yes') {
  801:                 $handgradeable=1; last;
  802:             }
  803:         }
  804:         if ($handgradeable) {
  805:             my @ungraded = &Apache::bridgetask::get_queue_symb_status(
  806:                                              'gradingqueue',$symb,$cdom,$cnum);
  807:             if (@ungraded > 0) {
  808:                 $$ungraded{$symb}{count} = scalar(@ungraded);
  809:                 $$ungraded{$symb}{title} = $title;
  810:                 push(@{$tograde}, $symb);
  811:             }
  812:         }
  813:     }
  814: }
  815: 
  816: sub check_bombed {
  817:     my ($resource,$symb,$title,$bombs,$bombed) = @_;
  818:     if ($resource->getErrors()) {
  819:         my $errors = $resource->getErrors();
  820:         $errors =~ s/^,//;
  821:         my @bombs = split(/,/, $errors);
  822:         my $errorcount = scalar(@bombs);
  823:         my $errorlink = '<a href="/adm/email?display='.
  824:                         &escape($bombs[0]).'">'.
  825:                         $title.'</a>';
  826:         $$bombed{$symb}{errorcount} = $errorcount;
  827:         $$bombed{$symb}{errorlink} = $errorlink;
  828:         push(@{$bombs}, $symb);
  829:     }
  830: }
  831: 
  832: sub check_thresholds {
  833:     my ($resource,$symb,$resourcetracker,$triggered,$threshold,$warnings) = @_;
  834: # Compile maxtries and degree of difficulty for problem parts, unless handgradeable
  835:     my @parts = @{$resource->parts()};
  836:     my %stats;
  837:     my %lastreset = ();
  838:     my $warning = 0;
  839:     my $rowColor;
  840:     foreach my $part (@parts) {
  841:         if ($resource->handgrade($part) eq 'yes') {
  842:             next;
  843:         }
  844:         if ($resource->is_survey($part)) {
  845:             next;
  846:         }
  847:         %{$stats{$part}} = ();
  848:         my ($attempts,$users,$corrects,$degdiff,$av_attempts);
  849:         if (exists($$resourcetracker{$symb."\0".$part."\0attempts"})) {
  850:             $attempts = $$resourcetracker{$symb."\0".$part."\0attempts"};
  851:         }
  852:         if (exists($$resourcetracker{$symb."\0".$part."\0users"})) {
  853:             $users = $$resourcetracker{$symb."\0".$part."\0users"};
  854:         }
  855:         if (exists($$resourcetracker{$symb."\0".$part."\0correct"})) {
  856:             $corrects = $$resourcetracker{$symb."\0".$part."\0correct"};
  857:         }
  858:         if ($attempts > 0) {
  859:             $degdiff =  1 - ($corrects/$attempts);
  860:             $degdiff = sprintf("%.2f",$degdiff);
  861:         }
  862:         if ($users > 0) {
  863:             $av_attempts = $attempts/$users;
  864:             $av_attempts = sprintf("%.2f",$av_attempts);
  865:         }
  866:         if ((($degdiff ne '' && $degdiff >= $$threshold{'degdiff'}) || ($av_attempts ne '' && $av_attempts >= $$threshold{'av_attempts'})) && ($users >= $$threshold{'numstudents'})) {
  867:             $stats{$part}{degdiff} = $degdiff;
  868:             $stats{$part}{attempts} = $av_attempts;
  869:             $stats{$part}{users} = $users;
  870:             $lastreset{$part} = $$resourcetracker{$symb."\0".$part."\0resettime"};
  871:             if ($lastreset{$part}) {
  872:                 $lastreset{$part} = &Apache::lonnavmaps::timeToHumanString($lastreset{$part});
  873:             }
  874:             $warning = 1;
  875:         }
  876:     }
  877:     if ($warning) {
  878:         $$triggered{$symb}{title} = $resource->title;
  879:         my $partcount = 0;
  880:         @{$$triggered{$symb}{text}} = ();
  881:         foreach my $part (@parts) {
  882:             if (exists($stats{$part}{users})) {
  883:                 my $resetname = 'reset_'.&escape($symb."\0".$part);
  884:                 my $resettitle = 'title_'.&escape($symb."\0".$part);
  885:                 if (@parts > 1) {
  886:                     $$triggered{$symb}{text}[$partcount] = '
  887:                      <td>part - '.$part.'</td>';
  888:                 } else {
  889:                     $$triggered{$symb}{text}[$partcount] = '
  890:                      <td>single part</td>';
  891:                 }
  892:                 $$triggered{$symb}{text}[$partcount] .= '
  893:                      <td>'.$stats{$part}{users}.'</td>
  894:                      <td>'.$stats{$part}{attempts}.'</td>
  895:                      <td>'.$stats{$part}{degdiff}.'</td>
  896:                      <td>'.$lastreset{$part}.'</td>
  897:                      <td><input type="checkbox" name="'.$resetname.'" /><input type="hidden" name="'.$resettitle.'" value="'.&escape($$triggered{$symb}{title}).'" /></td>';
  898:                 $partcount ++;
  899:             }
  900:             $$triggered{$symb}{numparts} = $partcount;
  901:         }
  902:         push(@{$warnings},$symb);
  903:     }
  904: }
  905: 
  906: 
  907: sub get_curr_thresholds {
  908:     my ($threshold,$uname,$udom,$cid,$cdom,$crs) = @_;
  909:     # set default values
  910:     %$threshold = (av_attempts => 2,
  911:                   degdiff => 0.5,
  912:                   numstudents => 2
  913:                   );
  914:     my %thresholdsettings = &Apache::lonnet::dump('nohist_whatsnew',$udom,
  915:                                                      $uname,$cid.':threshold');
  916:     my $thresholdcount = 0;
  917:     my ($tmp) = %thresholdsettings;
  918:     unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
  919:         foreach my $item (keys %{$threshold}) { 
  920:             if (exists($thresholdsettings{$cid.':threshold_'.$item})) {
  921:                 $$threshold{$item} = 
  922:                              $thresholdsettings{$cid.':threshold_'.$item};
  923:                 $thresholdcount ++;
  924:             }
  925:         }
  926:     }
  927:     if ($thresholdcount == 3) {
  928:         return;
  929:     }
  930:     my %coursesettings = &Apache::lonnet::dump('environment',
  931:                                               $cdom,$crs,'internal.threshold');
  932:     my ($temp) = %coursesettings;
  933:     unless ($temp =~ /^(con_lost|error|no_such_host)/i) {  
  934:         foreach my $item (keys %{$threshold}) {
  935:             unless (exists($thresholdsettings{$cid.':threshold_'.$item})) {
  936:                 if (exists($coursesettings{'internal.threshold_'.$item})) {
  937:                     $$threshold{$item} = 
  938:                              $coursesettings{'internal.threshold_'.$item};
  939:                 }
  940:             }
  941:         }
  942:     }
  943:     return;
  944: }
  945: 
  946: sub get_current {
  947:     my ($uname,$udom,$cid,$caller) = @_;
  948:     my $currvalue;
  949:     my %settings = &Apache::lonnet::dump('nohist_whatsnew',$udom,$uname,$cid.
  950:                                                                 ':'.$caller);
  951:     my ($tmp) = %settings;
  952:     unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
  953:         $currvalue = $settings{$cid.':'.$caller};
  954:     }
  955:     return $currvalue;
  956: }
  957: 
  958: sub process_reset {
  959:     my ($dom,$crs) = @_;
  960:     my $result = '<b>'.&mt('Counters reset for following problems (and parts):').
  961:                            '</b><br />';
  962:     my @agg_types = ('attempts','users','correct');
  963:     my %agg_titles = &Apache::lonlocal::texthash (
  964:                      attempts => 'Number of submissions',
  965:                      users => 'Students with submissions',
  966:                      correct => 'Number of correct submissions',
  967:                      );
  968:     my @resets = ();
  969:     my %titles = ();
  970:     foreach my $key (keys(%env)) {
  971:         next if ($key !~ /^form\.reset_(.+)$/);
  972:         my $title = &unescape($env{'form.title_'.$1});
  973:         my $reset_item = &unescape($1);
  974:         my %curr_aggregates = &Apache::lonnet::dump('nohist_resourcetracker',$dom,$crs,$reset_item);
  975:         my %aggregates = ();
  976:         my ($symb,$part) = split(/\0/,$reset_item);
  977:         foreach my $type (@agg_types) {
  978:             $aggregates{$reset_item."\0".$type} = 0;
  979:         }  
  980: 	$aggregates{$reset_item."\0".'resettime'} = time;
  981:         my $putresult = &Apache::lonnet::put('nohist_resourcetracker',\%aggregates,
  982:                           $dom,$crs);
  983:         if ($putresult eq 'ok') {
  984:             $result .= $title.' -part '.$part.': ';
  985:             my %new_aggregates = &Apache::lonnet::dump('nohist_resourcetracker',$dom,$crs,$reset_item);
  986:             foreach my $type (@agg_types) {
  987:                 $result .= $agg_titles{$type}.' = '.$new_aggregates{$reset_item."\0".$type}.'; ';
  988:             }
  989:             $result =~ s/; $//;
  990:             $result .= '<br />';
  991:         } else {
  992:             $result = $title.' -part '.$part.': '.&mt('Unable to reset counters to zero due to [_1]',$putresult).'.<br />'."\n";
  993:         }
  994:     }
  995:     return $result;
  996: }
  997: 
  998: sub process_update {
  999:     my ($uname,$udom,$threshold_titles) = @_;
 1000:     my $setoutput = '<b>Changes to threshold(s) for problem tracking:</b><br />';
 1001:     foreach (keys %env) {
 1002:         next if ($_!~/^form\.(.+)\_setparmval$/);
 1003:         my $name  = $1;
 1004:         my $value = $env{'form.'.$name.'_value'};
 1005:         if ($name && defined($value)) {
 1006:             my $put_result = &Apache::lonnet::put('nohist_whatsnew',
 1007:                                                   {$name=>$value},$udom,$uname);
 1008:            
 1009:             my ($shortname) = ($name =~ /^\Q$env{'request.course.id'}\E:threshold_(.+)$/);
 1010:             if ($put_result eq 'ok') {
 1011:                 $setoutput.=&mt('Set threshold for [_1] to [_2]',
 1012: 				'<b>'.$$threshold_titles{$shortname}.'</b>',
 1013: 				'<b>'.$value.'</b>').'<br />';
 1014: 	    } else {
 1015:                 $setoutput.=&mt('Unable to set threshold for [_1] to [_2] due to [_3].',
 1016: 				'<b>'.$name.'</b>','<b>'.$value.'</b>',
 1017: 				'<tt>'.$put_result.'</tt>').'<br />';
 1018:             }
 1019:         }
 1020:     }
 1021:     return $setoutput;
 1022: }
 1023: 
 1024: sub getnormalmail {
 1025:     my ($newmsgs) = @_;
 1026: # Check for unread mail in course
 1027:     my $msgcount = 0;
 1028: 
 1029:     my @messages = sort(&Apache::lonnet::getkeys('nohist_email'));
 1030:     foreach my $message (@messages) {
 1031: 	my $msgid=&escape($message);
 1032:         my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
 1033:             &Apache::lonmsg::unpackmsgid($msgid);
 1034:         if (($fromcid) && ($fromcid eq $env{'request.course.id'})) {
 1035:             if (defined($sendtime) && $sendtime!~/error/) {
 1036:                 my $numsendtime = $sendtime;
 1037:                 $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
 1038:                 if ($status eq 'new') {
 1039:                     $msgcount ++;
 1040:                     if ($shortsubj eq '') {
 1041:                         $shortsubj = &mt('No subject');
 1042:                     }
 1043:                     push(@{$newmsgs}, {
 1044:                         msgid    => $msgid,
 1045:                         sendtime => $sendtime,
 1046:                         shortsub => $shortsubj,
 1047:                         from     => $fromname,
 1048:                         fromdom  => $fromdom
 1049:                         });
 1050:                 }
 1051:             }
 1052:         }
 1053:     }
 1054:     return $msgcount;
 1055: }
 1056: 
 1057: sub getcritmail {
 1058:     my ($critmsgs) = @_; 
 1059: # Check for critical messages in course
 1060:     my %what=&Apache::lonnet::dump('critical');
 1061:     my $result = '';
 1062:     my $critmsgcount = 0;
 1063:     foreach my $msgid (sort(keys(%what))) {
 1064:         my ($sendtime,$shortsubj,$fromname,$fromdom,$status,$fromcid)=
 1065:             &Apache::lonmsg::unpackmsgid($msgid);
 1066:         if (($fromcid) && ($fromcid eq  $env{'request.course.id'})) {
 1067:             if (defined($sendtime) && $sendtime!~/error/) {
 1068:                 my $numsendtime = $sendtime;
 1069:                 $sendtime = &Apache::lonlocal::locallocaltime($sendtime);
 1070:                 $critmsgcount ++;
 1071:                 if ($shortsubj eq '') {
 1072:                     $shortsubj = &mt('No subject');
 1073:                 }
 1074:                 push(@{$critmsgs}, {
 1075:                         msgid    => $msgid,
 1076:                         sendtime => $sendtime,
 1077:                         shortsub => $shortsubj,
 1078:                         from     => $fromname,
 1079:                         fromdom  => $fromdom
 1080:                         });
 1081:             }
 1082:         }
 1083:     }
 1084:     return $critmsgcount;
 1085: }
 1086: 
 1087: 
 1088: sub checkversions {
 1089:     my ($cdom,$crs,$navmap,$changed,$starttime) = @_;
 1090:     my %changes=&Apache::lonnet::dump('versionupdate',$cdom,$crs);
 1091:     my ($tmp) = keys(%changes);
 1092:     unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
 1093:         if (keys(%changes) > 0) {
 1094:             foreach my $key (sort(keys(%changes))) {
 1095:                 if ($changes{$key} > $starttime) {
 1096:                     my $version;
 1097:                     my ($root,$extension)=($key=~/^(.*)\.(\w+)$/);
 1098:                     my $currentversion=&Apache::lonnet::getversion($key);
 1099:                     my $revdate = 
 1100:                           &Apache::lonnet::metadata($root.'.'.$extension,
 1101:                                                      'lastrevisiondate');
 1102:                     $revdate =  &Apache::lonlocal::locallocaltime($revdate);
 1103:                     my $linkurl=&Apache::lonnet::clutter($key);
 1104:                     my $usedversion=$navmap->usedVersion('version_'.$linkurl);
 1105:                     my @resources = $navmap->getResourceByUrl($linkurl,1);
 1106:                     if (($usedversion) && ($usedversion ne 'mostrecent')) {
 1107:                         $version = $usedversion;     
 1108:                     } else {
 1109:                         $version = $currentversion;
 1110:                     }
 1111:                     foreach my $res (@resources) {
 1112:                          if (ref($res) eq 'Apache::lonnavmaps::resource') { 
 1113:                             my $symb = $res->symb();
 1114:                             %{$$changed{$symb}} = (
 1115:                                                 current => $currentversion,
 1116:                                                 version => $version,
 1117:                                                 revdate => $revdate,
 1118:                             );
 1119:                         }
 1120:                     }
 1121:                 }
 1122:             }
 1123:         }
 1124:     }
 1125:     return;
 1126: }
 1127: 
 1128: sub display_handgrade {
 1129:     my ($r,$tograde,$rowColor1,$rowColor2,$ungraded) = @_;
 1130:     my $rowColor;
 1131:     my %lt = &Apache::lonlocal::texthash(
 1132:                         'prna' => 'Problem Name',
 1133:                         'nmun' => 'Number ungraded',
 1134:                         'nopr' => 'No problems require handgrading',
 1135:     );
 1136:     if (@{$tograde} > 0) {
 1137:         $r->print('<tr bgcolor="#cccccc"><td><b><small>'.$lt{'prna'}.'</small></b></td><td align="right"><b><small>'.$lt{'nmun'}.'</small></b></td></tr>');
 1138:         my $rowNum = 0;
 1139:         foreach my $res (@{$tograde}) {
 1140:             if ($rowNum %2 == 1) {
 1141:                 $rowColor = $rowColor1;
 1142:             } else {
 1143:                 $rowColor = $rowColor2;
 1144:             }
 1145:             my ($map,$id,$url)=&Apache::lonnet::decode_symb($res);
 1146:             my $linkurl=&Apache::lonnet::clutter($url);
 1147:             $linkurl .= '?symb='.&escape($res);
 1148:                                                                                
 1149:             $r->print('<tr bgcolor="'.$rowColor.'"><td><a href="'.$linkurl.'"><small>'.$$ungraded{$res}{title}.'</small></a></td><td align="right"><small>'.$$ungraded{$res}{count}.'</small></td></tr>');
 1150:             $rowNum ++;
 1151:         }
 1152:     } else {
 1153:         $r->print('<tr><td bgcolor="#ffffff"><br><center><i><b><small>&nbsp;&nbsp;'.$lt{'nopr'}.'&nbsp;&nbsp;</small><br><br></b></i></td></tr>');
 1154:     }
 1155: }
 1156: 
 1157: sub display_haserrors {
 1158:     my ($r,$bombs,$rowColor1,$rowColor2,$bombed,$res_title) = @_;
 1159:     my $bombnum = 0;
 1160:     my $rowColor;
 1161:     my %lt = &Apache::lonlocal::texthash(
 1162:                                    reso => 'Resource',
 1163:                                    nmer => 'Number of errors',
 1164:                                    noer => 'No problems with errors',
 1165:     );
 1166:     if (@{$bombs} > 0) {
 1167:         $r->print('<tr bgcolor="#cccccc"><td><b><small>'.$lt{'reso'}.'</small></b></td><td align="right"><b><small>'.$lt{'nmer'}.'</small></b></td></tr>');
 1168:         @{$bombs} = sort { &cmp_title($a,$b,$res_title) } @{$bombs};
 1169:         foreach my $bomb (@{$bombs}) {
 1170:             if ($bombnum %2 == 1) {
 1171:                 $rowColor = $rowColor1;
 1172:             } else {
 1173:                 $rowColor = $rowColor2;
 1174:             }
 1175:             $r->print('<tr bgcolor="'.$rowColor.'"><td><small>'.$$bombed{$bomb}{errorlink}.'</small></td><td align="right"><small>'.$$bombed{$bomb}{errorcount}.'</small></td></tr>');
 1176:             $bombnum ++;
 1177:         }
 1178:     } else {
 1179:         $r->print('<tr><td bgcolor="#ffffff"><br /><center><b><i><small>'.$lt{'noer'}.'</small></i></b></center><br /></td></tr>');
 1180:     }
 1181:     return;
 1182: }
 1183: 
 1184: sub display_abovethreshold {
 1185:     my ($r,$refpage,$warnings,$triggered,$res_title) = @_;
 1186:     my %lt = &Apache::lonlocal::texthash(
 1187:                  reso => 'Resource',
 1188:                  part => 'Part',
 1189:                  nust => 'Num. students',
 1190:                  avat => 'Av. Attempts',
 1191:                  dedi => 'Deg. Diff',
 1192:                  lare => 'Last Reset',
 1193:                  reco => 'Reset Count?',
 1194:                  rese => 'Reset counters to 0',
 1195:                  nopr => 'No problems satisfy threshold criteria',
 1196:     );
 1197:     if (@{$warnings} > 0) {
 1198:         @{$warnings} = sort { &cmp_title($a,$b,$res_title) } @{$warnings};
 1199:         $r->print('<form name="reset_tracking" method="post" action="/adm/whatsnew">'.
 1200:                 ' <input type="hidden" name="command" value="reset" />'."\n".
 1201:                 ' <input type="hidden" name="refpage" value="'.$refpage.'" />'.
 1202:                 "\n");
 1203:         $r->print('<tr class="LC_info_row">'.
 1204: 		  '<td class="LC_first_item">'.$lt{'reso'}.'</td>'.
 1205: 		  '<td>'.$lt{'part'}.'</td><td>'.$lt{'nust'}.'</td>'.
 1206: 		  '<td>'.$lt{'avat'}.'</td><td>'.$lt{'dedi'}.'</td>'.
 1207: 		  '<td>'.$lt{'lare'}.'</td><td>'.$lt{'reco'}.'</td></tr>');
 1208: 	my $row;
 1209:         foreach my $res (@{$warnings}) {
 1210: 	    $row++;
 1211:             my ($map,$id,$url)=&Apache::lonnet::decode_symb($res);
 1212:             my $linkurl=&Apache::lonnet::clutter($url);
 1213:             my $rowspan;
 1214:             if ($$triggered{$res}{numparts} > 1) {
 1215:                 $rowspan = 'rowspan="'.$$triggered{$res}{numparts}.'"';
 1216:             }
 1217:             $linkurl .= '?symb='.&escape($res);
 1218:             my $css_class = $row%2?'LC_odd_row':'';
 1219:             $r->print('<tr class="'.$css_class.'">'.
 1220: 		      '<td class="LC_first_item" '.$rowspan.'><a href="'.$linkurl.'">'.
 1221: 		      $$triggered{$res}{title}.'</a></td>');
 1222:                       if (ref($$triggered{$res}{text}) eq 'ARRAY') {
 1223: 		          $r->print($$triggered{$res}{text}[0]);
 1224:                       }
 1225:                       $r->print('</tr>');
 1226:             if (ref($$triggered{$res}{text}) eq 'ARRAY') {
 1227:                 if (@{$$triggered{$res}{text}} > 1) {
 1228:                     for (my $i=1; $i<@{$$triggered{$res}{text}}; $i++) {
 1229:                         $r->print('<tr class="'.$css_class.'">'.
 1230:                                   $$triggered{$res}{text}[$i].'</tr>');
 1231:                     }
 1232:                 }
 1233:             }
 1234:         }
 1235:         $r->print('<tr class="LC_info_row"><td colspan="7"><br /><input type="submit" name="counters" value="'.$lt{'rese'}.'" /></td></tr></form>');
 1236:     } else {
 1237:         $r->print('<tr class="LC_empty_row"><td>'.$lt{'nopr'}.'</td></tr>');
 1238:     }
 1239: }
 1240: 
 1241: sub display_versionchanges {
 1242:     my ($r,$changed,$res_title,$rowColor1,$rowColor2,$interval) = @_;
 1243:     my %lt = &Apache::lonlocal::texthash(
 1244:         'reso' => 'Resource',
 1245:         'revd' => 'Last revised',
 1246:         'newv' => 'New version',
 1247:         'veru' => 'Version used',
 1248:         'noup' => 'No updated versions', 
 1249:     );
 1250:     my $rowColor;
 1251:     if (keys(%{$changed}) > 0) {
 1252:         $r->print('<tr bgcolor="#cccccc"><td><b><small>'.$lt{'reso'}.'</small></b></td><td><b><small>'.$lt{'revd'}.'</small></b></td><td><b><small>'.$lt{'newv'}.'</small></b></td><td><b><small>'.$lt{'veru'}.'</small></b></td></tr>');
 1253:         
 1254:         
 1255:         my @changes = sort { &cmp_title($a,$b,$res_title) } keys(%{$changed});
 1256:         my $changenum = 0;
 1257:         foreach my $item (@changes) {
 1258:             if ($changenum %2 == 1) {
 1259:                 $rowColor = $rowColor1;
 1260:             } else {
 1261:                 $rowColor = $rowColor2;
 1262:             }
 1263:             my ($map,$id,$url)=&Apache::lonnet::decode_symb($item);
 1264:             my $linkurl=&Apache::lonnet::clutter($url);
 1265:             $linkurl .= '?symb='.&escape($item);
 1266: 
 1267:             $r->print('<tr bgcolor="'.$rowColor.'"><td><small><a href="'.$linkurl.'">'.$$res_title{$item}.'</a></small></td><td><small>'.$$changed{$item}{'revdate'}.'</small></td><td><small>'.$$changed{$item}{'current'}.'</small></td><td><small>'.$$changed{$item}{'version'}.'</small></td></tr>');
 1268:             $changenum ++;
 1269:         }
 1270:     } else {
 1271:         $r->print('<tr><td bgcolor="#ffffff"><br /><center><b><i><small>'.$lt{'noup'}.' '.$interval.'</small></i></b></center><br /></td></tr>');
 1272:     }
 1273:     return;
 1274: }
 1275:  
 1276: sub display_coursediscussion {
 1277:     my ($r,$newdiscussions,$unread,$countunread,$res_title,$rowColor1,
 1278:                                                               $rowColor2) = @_;
 1279:     my $lctype = lc(&Apache::loncommon::course_type());
 1280:     my %lt = &Apache::lonlocal::texthash(
 1281:                 'loca' => 'Location',
 1282:                 'type' => 'Type',
 1283:                 'numn' => 'Number of new posts',
 1284:                 'noun' => 'No unread posts in '.$lctype.' discussions',
 1285:                 'tmlp' => 'Time of last post', 
 1286:     );
 1287:     my $rowColor;
 1288:     if (@{$newdiscussions} > 0) {
 1289:         $r->print('<tr bgcolor="#cccccc"><td><b><small>'.$lt{'loca'}.
 1290:                   '</small></b></td><td><b><small>'.$lt{'type'}.
 1291:                   '</small></b>');
 1292:         if ($countunread eq 'on') {
 1293:             $r->print('<td><b><small>'.$lt{'tmlp'}.'</small></b></td>'.
 1294:                       '<td align="right"><b><small>'.$lt{'numn'}.
 1295:                       '</small></b></td>');
 1296:         } else {
 1297:             $r->print('<td align="right"><b><small>'.$lt{'tmlp'}.
 1298:                          '</small></b></td>');
 1299:         }
 1300:         $r->print("</tr>\n");
 1301:         @{$newdiscussions} = sort { &cmp_title($a,$b,$res_title) }
 1302:                                                             @{$newdiscussions};
 1303:         my $rowNum = 0;
 1304:         foreach my $ressymb (@{$newdiscussions}) {
 1305:             my $forum_title = $$unread{$ressymb}{'title'};
 1306:             my $type = 'Resource';
 1307:             my $feedurl=&Apache::lonfeedback::get_feedurl($ressymb);
 1308:             if ($feedurl =~ /bulletinboard/) {
 1309:                 $type = 'Bulletin Board';
 1310:             }
 1311:             if ($rowNum %2 == 1) {
 1312:                 $rowColor = $rowColor1;
 1313:             } else {
 1314:                 $rowColor = $rowColor2;
 1315:             }
 1316:             my $lastpost = &Apache::lonnavmaps::timeToHumanString(
 1317:                                                $$unread{$ressymb}{'lastpost'});
 1318:             $r->print('<tr bgcolor="'.$rowColor.'"><td><small><a href="'.$feedurl.'?symb='.$$unread{$ressymb}{symb}.'">'.$forum_title.'</a>&nbsp;</td><td><small>'.$type.'&nbsp;</small></td>');
 1319:             if ($countunread eq 'on') {
 1320:                 my $unreadnum = $$unread{$ressymb}{'unreadcount'};
 1321:                 $r->print('<td><small>'.$lastpost.'<small></td><td align="right">'.
 1322:                           '<small>',$unreadnum.'&nbsp;</small></td>');
 1323:             } else {
 1324:                 $r->print('<td align="right"><small>'.$lastpost.'</small></td>');
 1325:             }
 1326:             $r->print("</tr>\n");
 1327:             $rowNum ++;
 1328:         }
 1329:     } else {
 1330:         $r->print('<tr><td bgcolor="#ffffff"><br><center>&nbsp;<i><b><small>'.
 1331:                   $lt{'noun'}.'</small></b></i><br><br></td></tr>');
 1332:     }
 1333: }
 1334: 
 1335: sub display_coursenormalmail {
 1336:     my ($r,$msgcount,$newmsgs,$rowColor1,$rowColor2) = @_;
 1337:     my $rowColor;
 1338:     my $lctype = lc(&Apache::loncommon::course_type());
 1339:     if ($msgcount > 0) {
 1340:         $r->print('<tr bgcolor="#cccccc"><td><b><small>'.&mt('Number').'</small></b></td><td><b><small>'.&mt('Subject').'</small></b></td><td><b><small>'.&mt('Sender').'</small></b></td><td><b><small>'.&mt('Date/Time').'</small></b></td></tr>');
 1341:         my $rowNum = 0;
 1342:         my $mailcount = 1;
 1343:         foreach my $msg (@{$newmsgs}) {
 1344:             if ($rowNum %2 == 1) {
 1345:                 $rowColor = $rowColor1;
 1346:             } else {
 1347:                 $rowColor = $rowColor2;
 1348:             }
 1349:             $r->print('<tr bgcolor="'.$rowColor.'"><td valign="top"><small>'.$mailcount.'. &nbsp;</small></td><td valign="top"><small><a href="/adm/communicate">'.$msg->{'shortsub'}.'</a>&nbsp; &nbsp;</small></td><td valign="top"><small>&nbsp;'.$msg->{'from'}.'@'.$msg->{'fromdom'}.'&nbsp;</small></td><td valign="top"><small>'.$msg->{'sendtime'}.'</small></td></tr>');
 1350:             $rowNum ++;
 1351:             $mailcount ++;
 1352:         }
 1353:     } else {
 1354:         $r->print('<tr><td bgcolor="#ffffff" width="100%"><center><br /><b><i><small>'.&mt('No new '.$lctype.' messages').'</small></i></b><br /><br /></center></td></tr>');
 1355:     }
 1356: }
 1357: 
 1358: sub display_coursecritmail {
 1359:     my ($r,$critmsgcount,$critmsgs,$rowColor1,$rowColor2) = @_;
 1360:     my $rowColor;
 1361:     my $lctype = lc(&Apache::loncommon::course_type());
 1362:     if ($critmsgcount > 0) {
 1363:         $r->print('<tr bgcolor="#cccccc"><td><b><small>'.&mt('Number').'</small></b></td><td><b><small>'.&mt('Subject').'</small></b></td><td><b><small>'.&mt('Sender').'</small></b></td><td><b><small>'.&mt('Date/Time').'</small></b></td></tr>');
 1364:         my $rowNum = 0;
 1365:         my $mailcount = 1;
 1366:         foreach my $msg (@{$critmsgs}) {
 1367:             if ($rowNum %2 == 1) {
 1368:                 $rowColor = $rowColor1;
 1369:             } else {
 1370:                 $rowColor = $rowColor2;
 1371:             }
 1372:             $r->print('<tr bgcolor="'.$rowColor.'"><td valign="top"><small>'.$mailcount.'. &nbsp;<small></td><td valign="top"><small><a href="/adm/email?folder=critical">'.$msg->{'shortsub'}.'</a>&nbsp; &nbsp;</small></td><td valign="top"><small>&nbsp;'.$msg->{'from'}.'@'.$msg->{'fromdom'}.'&nbsp;</small></td><td valign="top"><small>'.$msg->{'sendtime'}.'</small></td></tr>');
 1373:             $rowNum ++;
 1374:             $mailcount ++;
 1375:         }
 1376:     } else {
 1377:         $r->print('<tr><td bgcolor="#ffffff" width="100%"><center><br /><b><i><small>'.&mt('No unread critical messages in '.$lctype).'</small></i></b><br /><br /></center></td></tr>');
 1378:     }
 1379: }
 1380: 
 1381: sub cmp_title {
 1382:     my ($a,$b,$res_title) = @_;
 1383:     my ($atitle,$btitle) = (lc($$res_title{$a}),lc($$res_title{$b}));
 1384:     $atitle=~s/^\s*//;
 1385:     $btitle=~s/^\s*//;
 1386:     return $atitle cmp $btitle;
 1387: }
 1388: 
 1389: sub get_display_settings {
 1390:     my ($uname,$udom,$cid) = @_;
 1391:     my %settings = &Apache::lonnet::dump('nohist_whatsnew',$udom,$uname,$cid); 
 1392:     my ($tmp) = keys(%settings);
 1393:     if ($tmp=~ /^(con_lost|error|no_such_host)/i) {
 1394:         %settings = ();
 1395:         unless ($tmp =~ /^error: 2 /) {
 1396: 	    my $lctype = lc(&Apache::loncommon::course_type());
 1397:             &Apache::lonnet::logthis('Error retrieving whatsnew settings: '.
 1398:             $tmp.' for '.$uname.':'.$udom.' for '.$lctype.': '.$cid);
 1399:         }
 1400:     }
 1401:     return %settings;
 1402: }
 1403: 
 1404: sub store_display_settings {
 1405:     my ($uname,$udom,$cid,$checkallowed) = @_;
 1406:     my %whatsnew_settings;
 1407:     my $result;
 1408:     foreach my $key (keys(%{$checkallowed})) {
 1409: 	if ($key =~ /_section$/) { next; }
 1410:         if (exists($env{'form.display_'.$key})) {
 1411:             unless ($env{'form.display_'.$key} eq '') {
 1412:                 $whatsnew_settings{$cid.':'.$key} = $env{'form.display_'.$key};
 1413:             }
 1414:         }
 1415:     }
 1416:     if (keys(%whatsnew_settings)) {
 1417:         $result = &Apache::lonnet::put('nohist_whatsnew',\%whatsnew_settings,
 1418:                                                                  $udom,$uname);
 1419:     } else {
 1420:         $result = 'ok';
 1421:     }
 1422:     return $result;
 1423: }
 1424: 
 1425: sub store_interval_setting {
 1426:     my ($uname,$udom,$cid,$interval_titles) = @_;
 1427:     my %interval_settings = ();
 1428:     my $result;
 1429:     if (defined($env{'form.interval'})) {
 1430:         $interval_settings{$cid.':interval'} = $env{'form.interval'};
 1431:         my $outcome = &Apache::lonnet::put('nohist_whatsnew',
 1432:                                              \%interval_settings,$udom,$uname);
 1433:         if ($outcome eq 'ok') {
 1434:             $result = &mt('Interval set to version changes [_1]',
 1435:                   '<b>'.$$interval_titles{$env{'form.interval'}}.'</b><br />');
 1436: 
 1437:         } else {
 1438: 	    my $lctype = lc(&Apache::loncommon::course_type());
 1439:             &Apache::lonnet::logthis('Error storing whatsnew interval setting'.
 1440:                 ' '.$outcome.' for '.$uname.':'.$udom.' in '.$lctype.' '.$cid);
 1441:             $result = &mt('Unable to set interval to [_1] due to [_2].',
 1442:                          '<b>'.$$interval_titles{$env{'form.interval'}}.'</b>',
 1443:                          '<tt>'.$outcome.'</tt>.<br />');
 1444:         }
 1445:     }
 1446:     return $result;
 1447: }
 1448: 
 1449: sub store_discussion_setting {
 1450:     my ($uname,$udom,$cid) = @_;
 1451:     my %discussion_settings;
 1452:     my $result;
 1453:     if (defined($env{'form.countunread'})) {
 1454:         $discussion_settings{$cid.':countunread'} = $env{'form.countunread'};
 1455:         my $outcome = &Apache::lonnet::put('nohist_whatsnew',
 1456:                                              \%discussion_settings,$udom,$uname);
 1457:         if ($outcome eq 'ok') {
 1458:             $result = &mt('Count unread posts in discussions display set to [_1]',
 1459:                   '<b>'.$env{'form.countunread'}.'</b><br />');
 1460:                                                                                   
 1461:         } else {
 1462: 	    my $lctype = lc(&Apache::loncommon::course_type());
 1463:             &Apache::lonnet::logthis('Error storing whatsnew countunread setting'.
 1464:                 ' '.$outcome.' for '.$uname.':'.$udom.' in '.$lctype.' '.$cid);
 1465:             $result = &mt('Unable to set "number unread posts display" to [_1]'.
 1466:                           ' due to [_2].',
 1467:                          '<b>'.$env{'form.countunread'}.'</b>',
 1468:                          '<tt>'.$outcome.'</tt>.<br />');
 1469:         }
 1470:     }
 1471:     return $result;
 1472: }
 1473: 
 1474: sub store_courseinit_setting {
 1475:     my ($uname,$udom,$cid,$initpage) = @_;
 1476:     my %courseinit_settings;
 1477:     my $page_control;
 1478:     my $result;
 1479:     if (defined($env{'form.courseinit_control'})) {
 1480:         if ($env{'form.courseinit_control'} eq 'userpref') {
 1481:             $courseinit_settings{$cid.':courseinit'} = '';
 1482:             $page_control = 'global preferences';
 1483:         } else {
 1484:             if (defined($env{'form.courseinit_page'})) {
 1485:                 $courseinit_settings{$cid.':courseinit'} = 
 1486:                                                   $env{'form.courseinit_page'};
 1487:                 $page_control = 'course specific setting';
 1488:             }
 1489:         }
 1490:         if ($page_control) {
 1491: 	    my $lctype = lc(&Apache::loncommon::course_type());
 1492:             my $outcome = &Apache::lonnet::put('nohist_whatsnew',
 1493:                                            \%courseinit_settings,$udom,$uname);
 1494:             if ($outcome eq 'ok') {
 1495:                 if ($page_control eq 'global preferences') {
 1496:                     $result = &mt("Page displayed after role selection in $lctype now set by <b>user's global preferences</b>.");
 1497:                 } else {
 1498:                     $result = &mt('Page displayed after role selection in this '.$lctype.' set to <b>[_2]</b>',$lctype,$$initpage{$env{'form.courseinit_page'}});
 1499:                 }
 1500:             } else {
 1501:                 &Apache::lonnet::logthis('Error storing whatsnew courseinit '.
 1502:                                          'setting: '.$outcome.' for '.$uname.
 1503:                                          ':'.$udom.' in '.$lctype.' '.$cid);
 1504:                 if ($page_control eq 'global preferences') {
 1505:                     $result = &mt('Unable to set control of page display to [_1]'.
 1506:                           ' due to [_2].',
 1507:                          '<b>'.$page_control.'</b>',
 1508:                          '<tt>'.$outcome.'</tt>.<br />');
 1509:                 } else {
 1510:                     $result = &mt('Unable to set page display, after role selection, for this '.$lctype.' to <b>[_2]</b> due to <tt>[_3]</tt>.<br />',
 1511:                          $$initpage{$env{'form.courseinit_page'}},$outcome);
 1512:                 }
 1513:             }
 1514:         }
 1515:     }
 1516:     return $result;
 1517: }
 1518: 
 1519: sub start_box {
 1520:     my ($r,$tabbg,$show,$heading,$caller,$refpage) = @_;
 1521:     my %lt = &Apache::lonlocal::texthash( 
 1522:                        chth => 'Change thresholds?',
 1523:                        chin => 'Change interval?',
 1524:                        chop => 'Change options?',
 1525:     );
 1526:     my ($showhide,$class);
 1527:     if ($$show{$caller}) {
 1528:         $showhide = '<b><a href="javascript:change_display(document.visible.'.
 1529:                                'display_'.$caller.",'hide'".');">Hide</a></b>';
 1530:    
 1531:     } else {
 1532:         $showhide = '<b><a href="javascript:change_display(document.visible.'.
 1533:                                'display_'.$caller.",'show'".');">Show</a></b>';
 1534:     }
 1535:     
 1536:     $r->print('
 1537:          <table border="0" cellpadding="0" cellspacing="0" bgcolor="#000000" width="100%">
 1538:           <tr>
 1539:            <td>
 1540:             <table border="0" cellpadding="1" cellspacing="1" bgcolor="#000000" width="100%">
 1541:               <tr>
 1542:                <td bgcolor="'.$tabbg.'">
 1543:                 <table width="100%" border="0" cellspacing="0" cellpadding="0">
 1544:                  <tr>
 1545:                   <td><b>'.$$heading{$caller}.'</b></td>
 1546:                   <td valign="top" align="right">'.$showhide.'</td>
 1547:                  </tr>
 1548:                 </table>
 1549:                </td>
 1550:               </tr>');
 1551:      if (($caller eq 'abovethreshold') && ($$show{$caller})) {
 1552:          if ($$show{$caller}) {
 1553:              $r->print('
 1554:               <tr>
 1555:                 <td bgcolor="'.$tabbg.'" align="right"><a href="/adm/whatsnew?command=chgthreshold&refpage='.$refpage.'"><b><small>'.$lt{'chth'}.'</small></b></a></td>
 1556:               </tr>');
 1557:          }
 1558: 	 $class='class="LC_whatsnew"';
 1559:      } elsif (($caller eq 'versionchanges') && ($$show{$caller})) {
 1560:          if ($$show{$caller}) {
 1561:              $r->print('
 1562:               <tr>
 1563:                 <td bgcolor="'.$tabbg.'" align="right"><a href="/adm/whatsnew?command=chginterval&refpage='.$refpage.'"><b><small>'.$lt{'chin'}.'</small></b></a></td>
 1564:               </tr>');
 1565:          }
 1566:      } elsif ($caller eq 'coursediscussion') {
 1567:          if ($$show{$caller}) {
 1568:              $r->print('
 1569:               <tr>
 1570:                 <td bgcolor="'.$tabbg.'" align="right"><a href="/adm/whatsnew?command=chgdisc&refpage='.$refpage.'"><b><small>'.$lt{'chop'}.'</small></b></a></td>
 1571:               </tr>');
 1572:          }
 1573:      }
 1574:     $r->print('
 1575:               <tr>
 1576:                <td bgcolor="#ffffff">
 1577:                 <table cellpadding="2" cellspacing="0" border="0" width="100%" '.$class.'>
 1578: ');
 1579:     return;
 1580: }
 1581: 
 1582: sub end_box {
 1583:     my ($r) = shift;
 1584:     $r->print('
 1585:       </table>
 1586:      </td>
 1587:     </tr>
 1588:    </table>
 1589:   </td>
 1590:  </tr>
 1591: </table><br />');
 1592:     return;
 1593: }
 1594: 
 1595: 1;

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