Annotation of loncom/interface/lonpickcourse.pm, revision 1.96

1.1       www         1: # The LearningOnline Network
                      2: # Pick a course
                      3: #
1.96    ! bisitz      4: # $Id: lonpickcourse.pm,v 1.95 2010/06/06 02:40:30 raeburn Exp $
1.1       www         5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
                     28: 
                     29: package Apache::lonpickcourse;
                     30: 
                     31: use strict;
                     32: use Apache::Constants qw(:common);
                     33: use Apache::loncommon;
                     34: use Apache::loncoursedata;
                     35: use Apache::lonnet;
1.8       www        36: use Apache::lonlocal;
1.46      raeburn    37: use Apache::longroup;
1.78      raeburn    38: use Apache::courseclassifier;
1.85      raeburn    39: use LONCAPA qw(:DEFAULT :match);
1.1       www        40: 
                     41: sub handler {
                     42:     my $r = shift;
1.8       www        43:     &Apache::loncommon::content_type($r,'text/html');
1.1       www        44:     $r->send_http_header;
                     45:     return OK if $r->header_only;
                     46: 
                     47: # ------------------------------------------------------------ Print the screen
1.40      albertel   48: 
1.55      raeburn    49:     # Get parameters from query string
1.1       www        50:     &Apache::loncommon::get_unprocessed_cgi
1.55      raeburn    51:         ($ENV{'QUERY_STRING'},['domainfilter','form','cnumelement',
1.19      raeburn    52: 			       'cdomelement','cnameelement','roleelement',
1.85      raeburn    53:                                'multiple','type','setroles','fixeddom','cloner']);
1.90      raeburn    54:     my ($type,$title,$jscript,$multelement,$multiple,$roleelement,$typeelement,
1.85      raeburn    55:         $lastaction,$autosubmit,$submitopener,$cloneruname,$clonerudom);
1.55      raeburn    56: 
1.83      raeburn    57:     # Get course type - Course or Community.
1.54      raeburn    58:     $type = $env{'form.type'};
                     59:     if (!defined($env{'form.type'})) {
                     60:         $type = 'Course';
                     61:     }
1.82      bisitz     62:     $title = 'Selecting a '.$type;
1.54      raeburn    63: 
                     64:     # Setup for multiple course selections, if flag for multiples set.
1.55      raeburn    65:     $multiple = $env{'form.multiple'};
                     66:     if ($multiple) {
                     67:         ($jscript,$multelement) = &multiples_tag();
1.82      bisitz     68:         $title = 'Selecting '.$type.'(s)';
1.54      raeburn    69:     }
                     70: 
1.55      raeburn    71:     # if called when a DC is selecting a course 
1.54      raeburn    72:     my $roledom = $env{'form.roleelement'};
                     73:     if ($roledom) {
                     74:         $roleelement = '<input type="hidden" name="roleelement" value="'.$roledom.'" />';
1.66      raeburn    75:         $submitopener = &processpick();
1.54      raeburn    76:         $autosubmit = 'process_pick("'.$roledom.'")';
                     77:     }
1.90      raeburn    78:     if ($env{'form.typeelement'} ne '') {
                     79:         $typeelement = '<input type="hidden" name="typeelement" value="'.$env{'form.typeelement'}.'" />';
                     80:     }
1.54      raeburn    81: 
1.92      raeburn    82:     # if called when a DC is creating a course for another user.
1.85      raeburn    83:     if ($env{'form.form'} eq 'ccrs') {
                     84:         ($cloneruname,$clonerudom) = ($env{'form.cloner'} =~ /^($match_username):($match_domain)$/);
                     85:     }
                     86: 
                     87:     # if called when requesting a course
                     88:     if ($env{'form.form'} eq 'requestcrs') {
                     89:         $cloneruname = $env{'user.name'};
                     90:         $clonerudom =  $env{'user.domain'};
                     91:     }
                     92: 
1.54      raeburn    93:     my $onlyown = 0;
1.55      raeburn    94:     # if called to assign course-based portfolio access control
1.59      raeburn    95:     if ((($env{'form.form'} eq 'portform') && (!$env{'user.adv'}))) {
1.54      raeburn    96:         $onlyown = 1;
1.49      raeburn    97:     }
1.55      raeburn    98: 
                     99:     my %loaditem;
1.84      raeburn   100:     if (($env{'form.type'} eq 'Course') && ($env{'form.numtitles'})) {
                    101:         if (($env{'form.official'} eq 'on') && ($env{'form.state'} eq 'listing')) {
                    102:             $loaditem{'onload'} = 'setElements(document.filterpicker); ';
                    103:         }
1.78      raeburn   104:     }
                    105: 
1.66      raeburn   106:     if ((($env{'form.form'} eq 'cu') || ($env{'form.form'} eq 'studentform')) && 
                    107:         ($env{'form.pickedcourse'})) {
1.89      raeburn   108:         $loaditem{'onload'} .= 'setRoles();setSections();';
1.30      raeburn   109:     }
1.85      raeburn   110:     my $js = &js_changer();
                    111:     $r->print(&Apache::loncommon::start_page($title,$js,
1.42      albertel  112: 					     {'add_entries' => \%loaditem,
1.41      albertel  113: 					      'no_nav_bar'  => 1, }));
1.55      raeburn   114: 
                    115:     if ($env{'form.form'} eq 'portform') {
                    116:         $lastaction = 'document.courselist.submit()';
1.67      raeburn   117:     } elsif ($env{'form.form'} eq 'cu' || ($env{'form.form'} eq 'studentform' &&
                    118:         !$multiple)) {
1.55      raeburn   119:         $lastaction = 
                    120:              'document.courselist.pickedcourse.value = cdom+"_"+cname;'."\n".
                    121:              'document.courselist.submit();';
1.34      albertel  122:     } else {
1.55      raeburn   123:         $lastaction = 'self.close()';
1.1       www       124:     }
1.19      raeburn   125: 
1.55      raeburn   126:     # if called to assign a role in a course to a user via CUSR
1.66      raeburn   127:     if ($env{'form.form'} eq 'cu' || $env{'form.form'} eq 'studentform') {
1.68      raeburn   128:         $r->print(&create_user_javascript($type));
1.55      raeburn   129:     }
1.54      raeburn   130: 
1.55      raeburn   131:     # print javascript functions for choosing a course 
1.85      raeburn   132:     if ((($env{'form.gosearch'}) && ($env{'form.updater'} eq '')) || 
                    133:         $onlyown) {
1.58      raeburn   134:         $r->print(&gochoose_javascript($type,$multiple,$autosubmit,$lastaction));
1.55      raeburn   135:     }
1.79      raeburn   136:     $r->print('<script type="text/javascript" language="Javascript">'.$jscript.
                    137:               '</script>');
1.55      raeburn   138:     $r->print($submitopener);
1.54      raeburn   139: 
1.55      raeburn   140: # ------------------------------------------ Display of filters to limit search
1.57      raeburn   141:     my $filter = {};
                    142:     my $action = '/adm/pickcourse';
1.79      raeburn   143:     my ($numtitles,$showroles,$nohost);
1.55      raeburn   144:     if (!$onlyown) {
1.94      raeburn   145:         my $filterlist = ['domainfilter'];
                    146:         # created filter for DCs only
                    147:         if ($env{'user.adv'} && $env{'form.domainfilter'} &&
1.95      raeburn   148:             exists($env{'user.role.dc./'.$env{'form.domainfilter'}.'/'})
                    149:             && $env{'form.form'} ne 'portform') {
1.94      raeburn   150:             my $loncaparev = &Apache::lonnet::get_server_loncaparev($env{'form.domainfilter'});
                    151:             if ($loncaparev ne 'unknown_cmd') {
                    152:                 push(@{$filterlist},'createdfilter');
                    153:             }
                    154:         }
                    155:         push(@{$filterlist},('descriptfilter','instcodefilter'));
1.79      raeburn   156:         if ($env{'form.form'} eq 'rules') {
                    157:             push(@{$filterlist},'personfilter');
                    158:             if (($env{'form.personfilter'} ne '') && ($env{'form.persondomfilter'} ne '')) {
                    159:                 if (&Apache::lonnet::homeserver($env{'form.personfilter'},
                    160:                                                  $env{'form.persondomfilter'}) eq 'no_host') {
                    161:                     $nohost = 1;
                    162:                 } else {
                    163:                     $showroles = 1;
                    164:                 } 
                    165:             }
                    166:         } else {
                    167:             push(@{$filterlist},'ownerfilter');
                    168:         }
1.55      raeburn   169:         # course ID filter for DCs only
                    170:         if ($env{'user.adv'} && $env{'form.domainfilter'} &&
                    171:             exists($env{'user.role.dc./'.$env{'form.domainfilter'}.'/'})) {
                    172:             push(@{$filterlist},'coursefilter');
                    173:         }
1.85      raeburn   174:         if ($cloneruname ne '' && $clonerudom ne '') {
                    175:             push(@{$filterlist},'cloneableonly');
                    176:         }
                    177: 
1.55      raeburn   178:         $r->print(&build_filters($filterlist,$type,$roleelement,$multelement,
1.85      raeburn   179:                                  $filter,$action,\$numtitles,undef,$cloneruname,
1.90      raeburn   180:                                  $clonerudom,$typeelement));
1.55      raeburn   181:     }
1.54      raeburn   182: 
                    183: # ---------------------------------------------------------------- Get the data
1.85      raeburn   184:     if ((($env{'form.gosearch'}) && ($env{'form.updater'} eq '')) || 
                    185:          $onlyown) {
                    186:         my %courses = &search_courses($r,$type,$onlyown,$filter,$numtitles,
                    187:                                       $cloneruname,$clonerudom);
1.79      raeburn   188:         if ($nohost) {
                    189:             $r->print ('<span class="LC_warning">'.
                    190:                        &mt('User does not exist - username: [_1], domain: [_2].',
                    191:                            '<b>'.$filter->{'personfilter'}.'</b>',
                    192:                            '<b>'.$filter->{'persondomfilter'}.'</b>').'</span>');
                    193:         } else {
1.85      raeburn   194:             &display_matched_courses($r,$type,$multiple,$action,$showroles,$cloneruname,
                    195:                                      $clonerudom,%courses);
1.79      raeburn   196:         }
1.54      raeburn   197:     }
                    198:     $r->print(&Apache::loncommon::end_page());
                    199:     return OK;
                    200: }
                    201: 
1.85      raeburn   202: sub js_changer {
                    203:     return <<"ENDJS";
                    204: <script type="text/javascript">
                    205: 
                    206: function updateFilters(caller) {
                    207:     if (typeof(caller) != "undefined") {
                    208:         document.filterpicker.updater.value = caller.name;
                    209:     }
                    210:     document.filterpicker.submit();
                    211: }
                    212: 
                    213: </script>
                    214: 
                    215: ENDJS
                    216: 
                    217: }
                    218: 
1.66      raeburn   219: sub processpick {
                    220:     my $openerform = 'rolechoice';
                    221:     if ($env{'form.form'} eq 'studentform') {
                    222:         $openerform = $env{'form.form'};
                    223:     }
                    224:     my $process_pick = <<"ENDONE";
                    225: <script type="text/javascript">
                    226: function process_pick(dom) {
                    227:     var pickedCourse=opener.document.$openerform.$env{'form.cnumelement'}.value;
                    228:     var pickedDomain=opener.document.$openerform.$env{'form.cdomelement'}.value;
                    229:     var okDomain = 0;
                    230: ENDONE
                    231:     if ($openerform eq 'rolechoice') {
                    232:         $process_pick .= <<"ENDTWO";
                    233:     if (pickedDomain == dom) {
                    234:         if (pickedCourse != '') {
1.88      raeburn   235:             var ccrole = "cc";
                    236:             var pickedType = "$env{'form.type'}";
                    237:             if (pickedType == "Community") {
                    238:                 ccrole = "co";
                    239:             }
                    240:             var courseTarget = ccrole+"./"+pickedDomain+"/"+pickedCourse
1.66      raeburn   241:             opener.document.title='Role selected. Please stand by.';
                    242:             opener.status='Role selected. Please stand by.';
                    243:             opener.document.rolechoice.newrole.value=courseTarget
                    244:             opener.document.rolechoice.submit();
                    245:         }
                    246:     } 
                    247:     else {
                    248:         alert("You may only use this screen to select courses in the current domain: "+dom+"\\nPlease return to the roles page window and click the 'Select Course' link for domain: "+pickedDomain+",\\n if you are a Domain Coordinator in that domain, and wish to become a Course Coordinator in a course in the domain");
                    249:     }
                    250: ENDTWO
                    251:     } else {
                    252:         $process_pick .= <<"ENDTHREE";
                    253:     if (pickedDomain != dom) {
                    254:         alert("You may only use this screen to select courses in the current domain: "+dom+"\\nPlease return to the roles page window and click the 'Select Course' link for domain: "+pickedDomain+",\\n if you are a Domain Coordinator in that domain, and wish to become a Course Coordinator in a course in the domain");
                    255:         return;
                    256:     }
                    257: ENDTHREE
                    258:     }
                    259:     $process_pick .= "
                    260: }
                    261: 
                    262: </script>
                    263: ";
                    264:     return $process_pick;
                    265: }
                    266: 
1.55      raeburn   267: sub create_user_javascript {
                    268:     my ($type) = @_;
                    269:     my $output;
                    270:     #javascript for reporting sections and groups then closing
                    271:     if ($env{'form.pickedcourse'}) {
1.87      raeburn   272:         my %coursedescription = 
                    273:             &Apache::lonnet::coursedescription($env{'form.pickedcourse'},
                    274:                                                {'one_time' => '1'});
                    275:         my $cdom = $coursedescription{'domain'};
                    276:         my $cnum = $coursedescription{'num'};
                    277:         my $crstype = $coursedescription{'type'};
1.55      raeburn   278:         my $sec_element = 'currsec';
                    279:         my $grplist_element = 'groups';
                    280:         my ($sections,$groups) =
                    281:           &Apache::loncommon::get_secgrprole_info($cdom,$cnum,'',$type);
                    282:         my $num_sections = scalar(@{$sections});
                    283:         my $seclist = join(',',@{$sections});
                    284:         my $num_groups = scalar(@{$groups});
                    285:         my $groupslist = join(',',@{$groups});
                    286:         $output = qq|
                    287: <script type="text/javascript">
                    288: function setSections() {
                    289:     opener.document.$env{"form.form"}.$grplist_element.value='$groupslist';
                    290:     window.opener.setSect('$seclist');
1.87      raeburn   291:     self.close();
                    292: }
                    293: function setRoles() {
                    294:     window.opener.setRole('$crstype');
1.55      raeburn   295: }
                    296: </script>
                    297: |;
                    298: ;
                    299:     }
                    300:     return $output;
                    301: }
                    302: 
1.54      raeburn   303: sub display_matched_courses {
1.85      raeburn   304:     my ($r,$type,$multiple,$action,$showroles,$cloneruname,$clonerudom,%courses) = @_;
1.55      raeburn   305:     if ($env{'form.form'} eq 'portform') {
                    306:         $action = '/adm/portfolio';
                    307:     }
1.68      raeburn   308:     my $numcourses = keys(%courses);
1.55      raeburn   309:     $r->print('<form name="courselist" method="post" action="'.$action.'">');
1.68      raeburn   310:     if ($env{'form.form'} eq 'modifycourse') {
                    311:         if ($numcourses > 0) {
1.89      raeburn   312:             my $ccrole = 'cc';
                    313:             if ($type eq 'Community') {
                    314:                 $ccrole = 'co';
                    315:             }
                    316:             my $cctitle = &Apache::lonnet::plaintext($ccrole,$type);
1.68      raeburn   317:             my $dctitle = &Apache::lonnet::plaintext('dc');
1.93      raeburn   318:             my $ccrolechk = ' ';
                    319:             my $menuchk = ' checked="checked" ';
1.68      raeburn   320:             $r->print(
1.75      bisitz    321:                 '<fieldset>'
                    322:                .'<legend>'.&mt('Action').'</legend>'
                    323:                .'<div class="LC_nobreak"><label>'
                    324:                .'<input type="radio" name="phase" value="ccrole"'.$ccrolechk.'/>'
1.89      raeburn   325:                .'&nbsp;');
                    326:             if ($type eq 'Community') {
                    327:                 $r->print(&mt('Enter the community with the role of [_1].',$cctitle));
                    328:             } else {
                    329:                 $r->print(&mt('Enter the course with the role of [_1].',$cctitle));
                    330:             }
                    331:             $r->print('</label></div>'
1.75      bisitz    332:                .'<div class="LC_nobreak"><label>'
1.89      raeburn   333:                .'<input type="radio" name="phase" value="menu"'.$menuchk.'/>&nbsp;');
                    334:             if ($type eq 'Community') {
                    335:                 $r->print(&mt('View or modify community settings which only a [_1] may modify.',$dctitle));
                    336:             } else {
                    337:                 $r->print(&mt('View or modify course settings which only a [_1] may modify.',$dctitle));
                    338:             }
                    339:             $r->print('</label></div>'
1.75      bisitz    340:                .'</fieldset>'
                    341:                .'<br />'
                    342:             );
1.68      raeburn   343:         }
                    344:     }
1.54      raeburn   345:     my %by_descrip;
                    346:     foreach my $course (keys(%courses)) {
                    347:         my $descr;
1.64      raeburn   348:         if (ref($courses{$course}) eq 'HASH') {
1.65      raeburn   349:             $descr = $courses{$course}{'description'};
1.64      raeburn   350:         } elsif ($courses{$course} =~ m/^([^:]*):/i) {
1.54      raeburn   351:             $descr = &unescape($1);
1.34      albertel  352:         } else {
1.54      raeburn   353:             $descr = &unescape($courses{$course});
                    354:         }
                    355:         my $description = $descr;
                    356:         push (@{$by_descrip{$description}}, $course);
                    357:     }
1.71      bisitz    358:  
1.54      raeburn   359:     if ($numcourses > 1 && $multiple) {
                    360:         $r->print('<input type="button" value="check all"
                    361:                   onclick="javascript:checkAll(document.courselist.course_id)" />
                    362:                   &nbsp;&nbsp;<input type="button" value="uncheck all"
                    363:                   onclick="javascript:uncheckAll(document.courselist.course_id)" />
                    364:                   <br /><br />');
                    365:     }
1.71      bisitz    366: 
                    367:     if (%courses) {
                    368:         $r->print(&Apache::loncommon::start_data_table());
                    369:         $r->print(&Apache::loncommon::start_data_table_header_row());
1.89      raeburn   370:         my $titlehdr = &mt('Course Title');
                    371:         if ($type eq 'Community') {
                    372:             $titlehdr = &mt('Community Title');
                    373:         }
1.71      bisitz    374:         $r->print('<th>'.&mt('Select').'</th>'
1.89      raeburn   375:                  .'<th>'.$titlehdr.'</th>'
                    376:                  .'<th>'.&mt('Domain').'</th>');
                    377:         unless ($type eq 'Community') {
                    378:             $r->print('<th>'.&mt('Course Code').'</th>');
                    379:         }
                    380:         $r->print('<th>'.&mt('Owner/Co-owner(s)').'</th>');
1.79      raeburn   381:         if ($showroles) {
                    382:             $r->print('<th>'.&mt("Role(s) for [_1]",
                    383:                 &Apache::loncommon::plainname($env{'form.personfilter'},
                    384:                                               $env{'form.persondomfilter'},'firstname')).'</th>');
                    385:         }
1.71      bisitz    386:         $r->print(&Apache::loncommon::end_data_table_header_row());
                    387:     }
1.92      raeburn   388:     my %cc_cloneable;
                    389:     if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
                    390:         my ($coord_cloneable,$warning) =
                    391:             &get_coordinator_cloneable($cloneruname,$clonerudom,$type);
                    392:         if ($coord_cloneable) {
                    393:             map {$cc_cloneable{$_} = 1;} split('&',$coord_cloneable);
                    394:         }
                    395:     }
1.54      raeburn   396:     foreach my $description (sort { lc($a) cmp lc($b) } (keys(%by_descrip))) {
                    397:         foreach my $course (@{$by_descrip{$description}}) {
1.72      raeburn   398:             $r->print(&Apache::loncommon::start_data_table_row());
1.54      raeburn   399:             my $cleandesc=&HTML::Entities::encode($description,'<>&"');
                    400:             $cleandesc=~s/'/\\'/g;
                    401:             my ($cdom,$cnum)=split(/\_/,$course);
1.85      raeburn   402:             my ($descr,$instcode,$ttype,$canclone,@owners);
1.64      raeburn   403:             if (ref($courses{$course}) eq 'HASH') {
                    404:                 $descr = $courses{$course}{'description'};
1.85      raeburn   405:                 $instcode = $courses{$course}{'inst_code'};
                    406:                 $ttype = $courses{$course}{'type'};
                    407:                 if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
1.92      raeburn   408:                     if ($cc_cloneable{$courses{$course}{'cnum'}.':'.$courses{$course}{'domain'}}) {
                    409:                         $canclone = 1;
                    410:                     }
                    411:                     unless ($canclone) {
                    412:                         my $cloners = $courses{$course}{'cloners'};
                    413:                         if ($cloners ne '') { 
                    414:                             my @cloneable = split(',',$cloners);
                    415:                             if (grep(/^\*$/,@cloneable)) {
                    416:                                 $canclone = 1;
                    417:                             }
                    418:                             if (grep(/^\*:\Q$env{'form.clonerudom'}\E$/,@cloneable)) {
                    419:                                 $canclone = 1;
                    420:                             }
                    421:                             if (grep(/^\Q$cloneruname\E:\Q$clonerudom\E$/,@cloneable)) {
                    422:                                 $canclone = 1;
                    423:                             }
1.85      raeburn   424:                         }
                    425:                     }
                    426:                 }
1.64      raeburn   427:                 push(@owners,&unescape($courses{$course}{'owner'}));
                    428:                 if (ref($courses{$course}{'co-owners'}) eq 'ARRAY') {
                    429:                     foreach my $item (@{$courses{$course}{'co-owners'}}) {
                    430:                         push(@owners,&unescape($item));
                    431:                     }
                    432:                 }
                    433:             } else {
                    434:                 my $singleowner; 
                    435:                 ($descr,$instcode,$singleowner,$ttype)=split(/:/,$courses{$course});
                    436:                 push(@owners,&unescape($singleowner));
                    437:             }
1.93      raeburn   438:             my $ownerstr = join(', ',map { &Apache::loncommon::plainname(split(':',$_)); } @owners);
1.85      raeburn   439:             $r->print('<td>'.&course_chooser($multiple,$cdom,$cnum,$cleandesc,$canclone).'</td>');
1.71      bisitz    440:             $r->print('<td>'.$description.'</td>');
                    441:             $r->print('<td>');
                    442:             $r->print(&Apache::lonnet::domain($cdom,'description')?
                    443:                       $cdom.' ('.&Apache::lonnet::domain($cdom,'description').')':$cdom);
                    444:             $r->print('</td>');
1.89      raeburn   445:             unless ($type eq 'Community') { 
                    446:                 $r->print('<td>');
                    447:                 if ($instcode ne '') {
                    448:                     $r->print(&unescape($instcode));
                    449:                 } else {
                    450:                     $r->print('&nbsp;');
                    451:                 }
                    452:                 $r->print('</td>');
1.54      raeburn   453:             }
1.72      raeburn   454:             $r->print('<td>'.$ownerstr.'</td>');
1.79      raeburn   455:             if ($showroles) {
                    456:                 $r->print('<td>');
                    457:                 my $rolestr;
                    458:                 if (ref($courses{$course}{'roles'}) eq 'ARRAY') {
                    459:                     my @roles = sort(@{$courses{$course}{'roles'}});
                    460:                     foreach my $role (@roles) {
                    461:                         if ($role =~ /^cr/) {
                    462:                             my (undef,$crdom,$crname,$crtitle) = split('/',$role);
                    463:                             $rolestr .= $crtitle.', ';
                    464:                         } else {
1.89      raeburn   465:                             $rolestr .= &Apache::lonnet::plaintext($role,$type).', ';
1.79      raeburn   466:                         }
                    467:                     }
                    468:                     $rolestr =~ s/\, $//;
                    469:                 }
                    470:                 $r->print($rolestr.'</td>');
                    471:             }
1.54      raeburn   472:             if ($multiple) { $r->print("</label>\n"); }
1.72      raeburn   473:             $r->print(&Apache::loncommon::end_data_table_row());
1.71      bisitz    474:             # $r->print("<br />\n");
1.19      raeburn   475:         }
                    476:     }
1.72      raeburn   477:     if (%courses) {
                    478:         $r->print(&Apache::loncommon::end_data_table());
                    479:     }
1.71      bisitz    480: 
1.54      raeburn   481:     if (!%courses) {
                    482:         $r->print(&mt('None found'));
                    483:     } elsif ($multiple) {
1.57      raeburn   484:         $r->print('<input type="button" value="Submit" onClick="gochoose('."'','','')".'" />');
1.54      raeburn   485:     }
                    486:     $r->print('<input type="hidden" name="form" value="'.$env{'form.form'}.'" />'.
                    487:               "\n".'<input type="hidden" name="pickedcourse" value="" />'."\n".
                    488:               '<input type="hidden" name="type" value="'.$type.'" />'."\n");
                    489:     if ((exists($env{'form.roleelement'})) && ($env{'form.form'} eq 'rolechoice')) {
                    490:         $r->print('<input type="hidden" name="roleelement" value="'.
                    491:                   $env{'form.roleelement'}.'" />'."\n");
                    492:     }
1.55      raeburn   493:     if ($env{'form.form'} eq 'portform') {
                    494:         $r->print('<input type="hidden" name="cnum" value="" />');
                    495:         $r->print('<input type="hidden" name="cdom" value="" />');
                    496:         $r->print('<input type="hidden" name="setroles" value="'.$env{'form.setroles'}.'" />');
                    497:         $r->print('<input type="hidden" name="action" value="rolepicker" />');
1.57      raeburn   498:     } elsif ($env{'form.form'} eq 'modifycourse') {
1.85      raeburn   499:         $r->print(&Apache::lonhtmlcommon::echo_form_input(['phase','pickedcourse','type','form','numtitles','state']));
1.57      raeburn   500:     } else {
                    501:         $r->print('<input type="hidden" name="cnumelement" value="'.
                    502:                   $env{'form.cnumelement'}.'" />'."\n".  
                    503:                   '<input type="hidden" name="cdomelement" value="'.
                    504:                   $env{'form.cdomelement'}.'" />'."\n");
1.90      raeburn   505:         if ($env{'form.typeelement'} ne '') {
                    506:             $r->print('<input type="hidden" name="typeelement" value="'.
                    507:                       $env{'form.typeelement'}.'" />'."\n");
                    508: 
                    509:         }
1.55      raeburn   510:     }
1.78      raeburn   511:     if ((exists($env{'form.fixeddom'})) && ($env{'form.form'} eq 'rules')) {
                    512:         $r->print('<input type="hidden" name="fixeddom" value="'.
                    513:                   $env{'form.fixeddom'}.'" />');
                    514:     }
                    515:     if ($env{'form.numtitles'}) {
                    516:         $r->print('<input type="hidden" name="numtitles" value="'.
                    517:                   $env{'form.numtitles'}.'" />');
                    518:     }
1.54      raeburn   519:     $r->print("</form>\n");
                    520:     return;
                    521: }
                    522: 
                    523: sub multiples_tag {
1.55      raeburn   524:     my $jscript = &Apache::loncommon::check_uncheck_jscript();
                    525:     my $multelement = '<input type="hidden" name="multiple" value="1" />';
                    526:     return ($jscript,$multelement);
1.1       www       527: }
1.30      raeburn   528: 
1.54      raeburn   529: sub build_filters {
1.57      raeburn   530:     my ($filterlist,$type,$roleelement,$multelement,$filter,$action,
1.90      raeburn   531:         $numtitlesref,$caller,$cloneruname,$clonerudom,$typeelement) = @_;
1.85      raeburn   532:     my ($list,$formname,$fixeddom,$codedom,$jscript);
                    533:     $codedom = $env{'request.role.domain'};
1.57      raeburn   534:     if (defined($env{'form.form'})) {
1.81      raeburn   535:         $formname = $env{'form.form'};
                    536:     } else {
                    537:         $formname = $caller;
1.57      raeburn   538:     }
1.96    ! bisitz    539:     my $onchange = 'javascript:updateFilters(this)';
1.94      raeburn   540:     my ($domainselectform,$sincefilterform,$createdfilterform,
                    541:         $ownerdomselectform,$persondomselectform,$instcodeform,
                    542:         $typeselectform,$instcodetitle);
1.55      raeburn   543:     foreach my $item (@{$filterlist}) {
1.54      raeburn   544:         $filter->{$item} = $env{'form.'.$item};
                    545:         if ($item ne 'descriptfilter' && $item ne 'instcodefilter') {
1.79      raeburn   546: 	    if ($item eq 'domainfilter') {
1.61      albertel  547: 		$filter->{$item} = &LONCAPA::clean_domain($filter->{$item});
                    548: 	    } elsif ($item eq 'coursefilter') {
                    549: 		$filter->{$item} = &LONCAPA::clean_courseid($filter->{$item});
                    550: 	    } elsif ($item eq 'ownerfilter') {
                    551: 		$filter->{$item} = &LONCAPA::clean_username($filter->{$item});
1.79      raeburn   552:                 $filter->{'ownerdomfilter'} = 
                    553:                     &LONCAPA::clean_domain($env{'form.ownerdomfilter'});
                    554:                 $ownerdomselectform =
                    555:                     &Apache::loncommon::select_dom_form($filter->{'ownerdomfilter'},
                    556:                                                         'ownerdomfilter',1);
                    557:             } elsif ($item eq 'personfilter') {
                    558:                 $filter->{$item} = &LONCAPA::clean_username($filter->{$item});
                    559:                 if ($env{'form.persondomfilter'} eq '') {
1.85      raeburn   560:                     unless ($env{'form.gosearch'}) {
1.79      raeburn   561:                         $filter->{'persondomfilter'} = $env{'request.role.domain'};
                    562:                     }
                    563:                 } else {
                    564:                     $filter->{'persondomfilter'} =
                    565:                         &LONCAPA::clean_domain($env{'form.persondomfilter'});
                    566:                 }
                    567:                 $persondomselectform =
                    568:                     &Apache::loncommon::select_dom_form($filter->{'persondomfilter'},
                    569:                                                         'persondomfilter',1);
1.61      albertel  570: 	    } else {
                    571: 		$filter->{$item} =~ s/\W//g;
                    572: 	    }
1.54      raeburn   573:             if (!$filter->{$item}) {
                    574:                 $filter->{$item} = '';
                    575:             }
                    576:         }
                    577:         if ($item eq 'domainfilter') {
1.63      albertel  578: 	    my $allow_blank = 1;
                    579: 	    if ($formname eq 'portform') {
                    580: 		$filter->{$item} ||= $env{'user.domain'};
                    581: 		$allow_blank=0;
1.67      raeburn   582: 	    } elsif ($formname eq 'studentform') {
                    583:                 $filter->{$item} ||= $env{'request.role.domain'};
                    584:                 $allow_blank=0;
                    585:             }
1.78      raeburn   586:             if ($env{'form.fixeddom'}) {
                    587:                 $domainselectform = '<input type="hidden" name="domainfilter"'.
                    588:                                     'value="'.$env{'request.role.domain'}.'" />'.
                    589:                                     &Apache::lonnet::domain($env{'request.role.domain'},
                    590:                                                             'description');
                    591:                 $codedom = $env{'request.role.domain'};
1.79      raeburn   592:             } else {
1.78      raeburn   593:                 $domainselectform =
                    594: 		    &Apache::loncommon::select_dom_form($filter->{$item},
                    595: 		    				        'domainfilter',
1.84      raeburn   596: 						        $allow_blank,'',$onchange);
1.78      raeburn   597:                 $codedom = $filter->{'domainfilter'};
                    598:             }
1.54      raeburn   599:         } else {
                    600:             $list->{$item} = &HTML::Entities::encode($filter->{$item},'<>&"');
                    601:         }
                    602:     }
                    603: 
                    604:     # last course activity filter and selection
1.94      raeburn   605:     $sincefilterform = &timebased_select_form('sincefilter',$filter);
                    606: 
                    607:     # course created filter and selection
                    608:     if (exists($filter->{'createdfilter'})) {
                    609:         $createdfilterform = &timebased_select_form('createdfilter',$filter);
                    610:     }
1.91      bisitz    611: 
                    612:     my %lt = &Apache::lonlocal::texthash(
                    613:                 'cac' => "$type Activity",
1.94      raeburn   614:                 'ccr' => "$type Created", 
1.91      bisitz    615:                 'cde' => "$type Title",
                    616:                 'cdo' => "$type Domain",
                    617:                 'ins' => 'Institutional Code',
                    618:                 'inc' => 'Institutional Categorization',
                    619:                 'cow' => "$type Owner/Co-owner",
                    620:                 'cop' => "$type Personnel Includes",
                    621:                 'cog' => 'Type',
1.54      raeburn   622:              );
1.49      raeburn   623: 
1.89      raeburn   624:     if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
                    625:         my $typeval = 'Course';
                    626:         if ($type eq 'Community') {
                    627:             $typeval = 'Community';
                    628:         }
                    629:         $typeselectform = '<input type="hidden" name="type" value="'.$typeval.'" />';
                    630:     } else {
                    631:         $typeselectform =  '<select name="type" size="1"';
                    632:         if ($onchange) {
                    633:             $typeselectform .= 'onchange="'.$onchange.'"';
                    634:         }
                    635:         $typeselectform .= '>'."\n";
                    636:         foreach my $posstype ('Course','Community') {
                    637:             $typeselectform.='<option value="'.$posstype.'"'.
                    638:                 ($posstype eq $type ? ' selected="selected" ' : ''). ">".&mt($posstype)."</option>\n";
                    639:         }
                    640:         $typeselectform.="</select>";
1.84      raeburn   641:     }
1.85      raeburn   642:     
                    643:     my ($cloneableonlyform,$cloneabletitle);
                    644:     if (exists($filter->{'cloneableonly'})) {
                    645:         my $cloneableon = '';
                    646:         my $cloneableoff = ' checked="checked"';
                    647:         if ($filter->{'cloneableonly'}) {
                    648:             $cloneableon = $cloneableoff;
                    649:             $cloneableoff = '';
                    650:         }
1.86      raeburn   651:         $cloneableonlyform = '<span class="LC_nobreak"><label><input type="radio" name="cloneableonly" value="1" '.$cloneableon.'/>&nbsp;'.&mt('Required').'</label>'.('&nbsp;'x3).'<label><input type="radio" name="cloneableonly" value="" '.$cloneableoff.' />&nbsp;'.&mt('No restriction').'</label></span>';
1.85      raeburn   652:         if ($env{'form.form'} eq 'ccrs') {
                    653:             $cloneabletitle = &mt('Cloneable for').' '.$cloneruname.':'.$clonerudom;
                    654:         } else {
                    655:             $cloneabletitle = &mt('Cloneable by you');
                    656:         }
                    657:     }
1.80      raeburn   658:     my $officialjs;
1.54      raeburn   659:     if ($type eq 'Course') {
1.85      raeburn   660:         if (exists($filter->{'instcodefilter'})) {
                    661:             if (($env{'form.fixeddom'}) || ($formname eq 'requestcrs')
                    662:                 || ($formname eq 'modifycourse')) {
                    663:                 $officialjs = 1;
                    664:                 ($instcodeform,$jscript,$$numtitlesref) = 
                    665:                     &instcode_selectors($codedom,'filterpicker',$officialjs);
                    666:                 if ($jscript) {
                    667:                     $jscript = '<script type="text/javascript" language="Javascript">'.
                    668:                                $jscript.'</script>'."\n";
                    669:                 }
                    670:             }
                    671:             if ($instcodeform eq '') {
                    672:                 $instcodeform = 
                    673:                     '<input type="text" name="instcodefilter" size="10" value="'.
                    674:                     $list->{'instcodefilter'}.'" />';
                    675:                 $instcodetitle = $lt{'ins'};
                    676:             } else {
                    677:                 $instcodetitle = $lt{'inc'};
                    678:             }
                    679:             if ($env{'form.fixeddom'}) {
                    680:                 $instcodetitle .= '<br />('.$codedom.')';
                    681:             }
1.78      raeburn   682:         }
1.54      raeburn   683:     }
1.84      raeburn   684: 
1.57      raeburn   685:     my $output = qq|
1.85      raeburn   686: <form method="post" name="filterpicker" action="$action">
1.57      raeburn   687: <input type="hidden" name="form" value="$formname" />
                    688: |;
                    689:     if ($formname eq 'modifycourse') {
1.68      raeburn   690:         $output .= '<input type="hidden" name="phase" value="courselist" />'."\n".
                    691:                    '<input type="hidden" name="prevphase" value="'.
                    692:                    $env{'form.prevphase'}.'" />'."\n";
                    693:     } else {
1.57      raeburn   694:         my $name_input;
                    695:         if ($env{'form.cnameelement'} ne '') {
                    696:             $name_input = '<input type="hidden" name="cnameelement" value="'.
                    697:                           $env{'form.cnameelement'}.'" />';
                    698:         }
                    699:         $output .= qq|
1.27      albertel  700: <input type="hidden" name="cnumelement" value="$env{'form.cnumelement'}" />
                    701: <input type="hidden" name="cdomelement" value="$env{'form.cdomelement'}" />
1.13      albertel  702: $name_input
1.18      raeburn   703: $roleelement
1.35      raeburn   704: $multelement
1.90      raeburn   705: $typeelement
1.57      raeburn   706: |;
1.59      raeburn   707:         if ($formname eq 'portform') {
1.78      raeburn   708:             $output .= '<input type="hidden" name="setroles" value="'.$env{'form.setroles'}.'" />'."\n";
1.59      raeburn   709:         }
1.57      raeburn   710:     }
1.78      raeburn   711:     if ($env{'form.fixeddom'}) { 
                    712:         $output .= '<input type="hidden" name="fixeddom" value="'.$env{'form.fixeddom'}.'" />'."\n";
                    713:     }
1.74      bisitz    714:     $output .= "<br />\n".&Apache::lonhtmlcommon::start_pick_box();
1.57      raeburn   715:     if ($sincefilterform) { 
1.74      bisitz    716:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cac'})
                    717:                   .$sincefilterform
                    718:                   .&Apache::lonhtmlcommon::row_closure();
1.57      raeburn   719:     }
1.94      raeburn   720:     if ($createdfilterform) {
                    721:         $output .= &Apache::lonhtmlcommon::row_title($lt{'ccr'})
                    722:                   .$createdfilterform
                    723:                   .&Apache::lonhtmlcommon::row_closure();
                    724:     }
1.57      raeburn   725:     if ($domainselectform) {
1.74      bisitz    726:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cdo'})
                    727:                   .$domainselectform
                    728:                   .&Apache::lonhtmlcommon::row_closure();
1.78      raeburn   729:     } 
1.57      raeburn   730:     if ($typeselectform) {
1.89      raeburn   731:         if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
                    732:             $output .= $typeselectform;
                    733:         } else {
                    734:             $output .= &Apache::lonhtmlcommon::row_title($lt{'cog'})
                    735:                       .$typeselectform
                    736:                       .&Apache::lonhtmlcommon::row_closure();
                    737:         }
1.57      raeburn   738:     }
                    739:     if ($instcodeform) {
1.78      raeburn   740:         $output .= &Apache::lonhtmlcommon::row_title($instcodetitle)
1.74      bisitz    741:                   .$instcodeform
                    742:                   .&Apache::lonhtmlcommon::row_closure();
1.57      raeburn   743:     }
                    744:     if (exists($filter->{'ownerfilter'})) {
1.79      raeburn   745:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cow'}).
                    746:                    '<table><tr><td>'.&mt('Username').'<br />'.
                    747:                    '<input type="text" name="ownerfilter" size="20" value="'.
                    748:                    $list->{'ownerfilter'}.'" /></td><td>'.&mt('Domain').'<br />'.
                    749:                    $ownerdomselectform.'</td></tr></table>'.
                    750:                    &Apache::lonhtmlcommon::row_closure();
                    751:     }
                    752:     if (exists($filter->{'personfilter'})) {
                    753:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cop'}).
                    754:                    '<table><tr><td>'.&mt('Username').'<br />'.
                    755:                    '<input type="text" name="personfilter" size="20" value="'.
                    756:                    $list->{'personfilter'}.'" /></td><td>'.&mt('Domain').'<br />'.
                    757:                    $persondomselectform.'</td></tr></table>'.
                    758:                    &Apache::lonhtmlcommon::row_closure();
1.57      raeburn   759:     }
                    760:     if (exists($filter->{'coursefilter'})) {
1.74      bisitz    761:         $output .= &Apache::lonhtmlcommon::row_title(&mt('LON-CAPA course ID'))
                    762:                   .'<input type="text" name="coursefilter" size="25" value="'
                    763:                   .$list->{'coursefilter'}.'" />'
                    764:                   .&Apache::lonhtmlcommon::row_closure();
1.57      raeburn   765:     }
1.85      raeburn   766:     if ($cloneableonlyform) {
                    767:         $output .= &Apache::lonhtmlcommon::row_title($cloneabletitle).
                    768:                    $cloneableonlyform.&Apache::lonhtmlcommon::row_closure();
                    769:     }
1.57      raeburn   770:     if (exists($filter->{'descriptfilter'})) {
1.74      bisitz    771:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cde'})
                    772:                   .'<input type="text" name="descriptfilter" size="40" value="'
                    773:                   .$list->{'descriptfilter'}.'" />'
                    774:                   .&Apache::lonhtmlcommon::row_closure(1);
1.57      raeburn   775:     }
1.85      raeburn   776:     $output .= &Apache::lonhtmlcommon::end_pick_box().'<p>';
1.92      raeburn   777:     my ($coord_cloneable,$warning);
1.85      raeburn   778:     if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
1.92      raeburn   779:         ($coord_cloneable,$warning) = 
                    780:             &get_coordinator_cloneable($cloneruname,$clonerudom,$type);
                    781:         if ($env{'form.form'} eq 'ccrs') {
                    782:             $output .= '<input type="hidden" name="cloner" value="'.$env{'form.cloner'}.'" />'."\n";
1.85      raeburn   783:         }
1.92      raeburn   784:         if ($coord_cloneable) {
                    785:             $output .= '<input type="hidden" name="cc_clone" value="'.$coord_cloneable.'" />';
1.85      raeburn   786:         }
                    787:     }
                    788:     $output .= '<input type="hidden" name="updater" value="">'."\n".
1.84      raeburn   789:                '<input type="submit" name="gosearch" value="'. 
1.70      raeburn   790:                &mt('Search').'" /></p>'."\n".'</form>'."\n".'<hr />'."\n";
1.85      raeburn   791:     return $jscript.$warning.$output;
1.78      raeburn   792: }
                    793: 
1.94      raeburn   794: sub timebased_select_form {
                    795:     my ($item,$filter) = @_;
                    796:     if (ref($filter) eq 'HASH') {
                    797:         $filter->{$item} = $env{'form.'.$item};
                    798:         $filter->{$item} =~ s/[^\d-]//g;
                    799:         if (!$filter->{$item}) { $filter->{$item}=-1; }
                    800:         return &Apache::loncommon::select_form( 
                    801:                             $filter->{$item},
                    802:                             $item,
1.95      raeburn   803:                             {      '-1' => '',
1.94      raeburn   804:                                 '86400' => &mt('today'),
                    805:                                '604800' => &mt('last week'),
                    806:                               '2592000' => &mt('last month'),
                    807:                               '7776000' => &mt('last three months'),
                    808:                              '15552000' => &mt('last six months'),
                    809:                              '31104000' => &mt('last year'),
                    810:                     'select_form_order' =>
                    811:                            ['-1','86400','604800','2592000','7776000',
1.95      raeburn   812:                             '15552000','31104000']});
1.94      raeburn   813:     }
                    814: }
                    815: 
1.92      raeburn   816: sub get_coordinator_cloneable {
                    817:     my ($cloneruname,$clonerudom,$type) = @_;
                    818:     if (&Apache::lonnet::homeserver($cloneruname,$clonerudom) eq 'no_host') {
                    819:         my $warning = '<div class="LC_error">'.&mt('Intended course owner does not exist').
                    820:                    '</div>';
                    821:         return ('',$warning);
                    822:     } else {
                    823:         my ($cc_clone,$ccrole);
                    824:         if ($type eq 'Community') {
                    825:             $ccrole = 'co';
                    826:         } elsif ($type eq 'Course') {
                    827:             $ccrole = 'cc';
                    828:         }
                    829:         my %ccroles = &Apache::lonnet::get_my_roles($cloneruname,$clonerudom,
                    830:                                                     'userroles',['active'], [$ccrole]);
                    831:         foreach my $key (sort(keys(%ccroles))) {
                    832:             my ($cnum,$cdom,$role) = split(':',$key);
                    833:             $cc_clone .= $cdom.':'.$cnum.'&';
                    834:         }
                    835:         $cc_clone =~ s/\&$//;
                    836:         return ($cc_clone);
                    837:     }
                    838: }
                    839: 
1.78      raeburn   840: sub instcode_selectors {
1.80      raeburn   841:     my ($codedom,$formname,$officialjs) = @_;
1.78      raeburn   842:     my ($output,@codetitles,%cat_titles,%cat_order,%cat_items);
                    843:     my ($jscript,$totcodes,$numtitles,$lasttitle) =
                    844:         &Apache::courseclassifier::instcode_selectors_data($codedom,$formname,
1.80      raeburn   845:                            \%cat_items,\@codetitles,\%cat_titles,\%cat_order,$officialjs);
1.78      raeburn   846:     if ($numtitles > 0) {
1.84      raeburn   847:         my $official = ' checked="checked" ';
                    848:         my $unofficial = '';
                    849:         if ($env{'form.official'} eq 'off') {
                    850:             $unofficial = $official;
                    851:             $official = '';
1.80      raeburn   852:         }
                    853:         $output .= '<span class="LC_nobreak">'.&mt('Official course:').'&nbsp;<label>'.
1.84      raeburn   854:                    '<input type="radio" name="official" value="on"'.$official.' />'.
1.80      raeburn   855:                    &mt('Yes').'</label>'.('&nbsp;'x3).'<label>'.
1.84      raeburn   856:                    '<input type="radio" name="official" value="off"'.$unofficial.
1.80      raeburn   857:                    ' onclick="toggleOfficial();" />'.&mt('No').'</label></span><br />'.
                    858:                    &Apache::courseclassifier::build_instcode_selectors($numtitles,
                    859:                    $lasttitle,\%cat_items,\@codetitles,\%cat_titles,\%cat_order)."\n".
                    860:                    '<input type="hidden" name="numtitles" value="'.$numtitles.'" />'."\n".
                    861:                    '<input type="hidden" name="state" value="listing" />'."\n";
1.78      raeburn   862:  
                    863:     }
                    864:     return ($output,$jscript,$numtitles);
1.54      raeburn   865: }
                    866: 
                    867: sub search_courses {
1.85      raeburn   868:     my ($r,$type,$onlyown,$filter,$numtitles,$cloneruname,$clonerudom) = @_;
1.89      raeburn   869:     my (%courses,%showcourses,$cloner,$ccrole);
                    870:     if ($type eq 'Community') {
                    871:         $ccrole = 'co';
                    872:     } else {
                    873:         $ccrole = 'cc';
                    874:     }
1.54      raeburn   875:     if (!$onlyown) {
1.71      bisitz    876:         $r->print(&mt('Searching ...').'<br />&nbsp;<br />');
1.6       www       877:         $r->rflush();
1.54      raeburn   878:         if (($filter->{'ownerfilter'} ne '') ||
                    879:             ($filter->{'ownerdomfilter'} ne '')) {
                    880:             $filter->{'combownerfilter'} = $filter->{'ownerfilter'}.':'.
                    881:                                            $filter->{'ownerdomfilter'};
                    882:         }
1.80      raeburn   883:         foreach my $item ('descriptfilter','coursefilter','combownerfilter') {
1.54      raeburn   884:             if (!$filter->{$item}) {
                    885:                 $filter->{$item}='.';
                    886:             }
1.52      raeburn   887:         }
1.94      raeburn   888:         my $now = time;
1.54      raeburn   889:         my $timefilter = 
1.94      raeburn   890:            ($filter->{'sincefilter'}==-1?1:$now-$filter->{'sincefilter'});
                    891:         my ($createdbefore,$createdafter);
                    892:         if (($filter->{'createdfilter'} ne '') && ($filter->{'createdfilter'} !=-1)) {
                    893:             $createdbefore = $now;
                    894:             $createdafter = $now-$filter->{'createdfilter'};
                    895:         }
1.78      raeburn   896:         my ($instcodefilter,$regexpok);
                    897:         if ($numtitles) {
1.84      raeburn   898:             if ($env{'form.official'} eq 'on') {
1.80      raeburn   899:                 $instcodefilter = 
1.84      raeburn   900:                     &Apache::courseclassifier::instcode_search_str($filter->{'domainfilter'},$numtitles);
1.80      raeburn   901:                 $regexpok = 1;
1.84      raeburn   902:             } elsif ($env{'form.official'} eq 'off') {
                    903:                 $instcodefilter = &Apache::courseclassifier::instcode_search_str($filter->{'domainfilter'},$numtitles);
                    904:                 unless ($instcodefilter eq '') {
                    905:                     $regexpok = -1;
                    906:                 }
1.80      raeburn   907:             }
1.78      raeburn   908:         } else {
                    909:             $instcodefilter = $filter->{'instcodefilter'};
                    910:         }
1.80      raeburn   911:         if ($instcodefilter eq '') { $instcodefilter = '.'; }
                    912:         if ($type eq '') { $type = '.'; }
1.85      raeburn   913:  
                    914:         if (($clonerudom ne '') && ($cloneruname ne '')) {
                    915:             $cloner = $cloneruname.':'.$clonerudom;  
                    916:         }
1.54      raeburn   917:         %courses = 
                    918:             &Apache::lonnet::courseiddump($filter->{'domainfilter'},
                    919:                                           $filter->{'descriptfilter'},
                    920:                                           $timefilter,
1.78      raeburn   921:                                           $instcodefilter,
1.54      raeburn   922:                                           $filter->{'combownerfilter'},
                    923:                                           $filter->{'coursefilter'},
1.85      raeburn   924:                                           undef,undef,$type,$regexpok,undef,undef,
                    925:                                           undef,undef,$cloner,$env{'form.cc_clone'},
1.94      raeburn   926:                                           $filter->{'cloneableonly'},
                    927:                                           $createdbefore,$createdafter);
1.79      raeburn   928:         if (($filter->{'personfilter'} ne '') && ($filter->{'persondomfilter'} ne '')) {
                    929:             my %rolehash = &Apache::lonnet::get_my_roles($filter->{'personfilter'},
                    930:                                                          $filter->{'persondomfilter'},
                    931:                                                          'userroles',undef,
1.89      raeburn   932:                                                          [$ccrole,'in','ad','ep','ta','cr'],
1.79      raeburn   933:                                                          $filter->{'domainfilter'});
                    934:             foreach my $role (keys(%rolehash)) {
                    935:                 my ($cnum,$cdom,$courserole) = split(':',$role);
                    936:                 my $cid = $cdom.'_'.$cnum;
                    937:                 if (exists($courses{$cid})) {
                    938:                     if (ref($courses{$cid}) eq 'HASH') {
                    939:                         if (ref($courses{$cid}{roles}) eq 'ARRAY') {
                    940:                             if (!grep(/^\Q$courserole\E$/,@{$courses{$cid}{roles}})) { 
                    941:                                 push (@{$courses{$cid}{roles}},$courserole);
                    942:                             }
                    943:                         } else {
                    944:                             $courses{$cid}{roles} = [$courserole];
                    945:                         }
                    946:                         $showcourses{$cid} = $courses{$cid};
                    947:                     }
                    948:                 }
                    949:             }
                    950:             %courses = %showcourses;
                    951:         }
1.54      raeburn   952:     } else {
                    953:         $r->print('<br />');
1.60      raeburn   954:         my %coursehash = &Apache::loncommon::findallcourses(); 
                    955:         foreach my $cid (sort(keys(%coursehash))) {
1.65      raeburn   956:             $courses{$cid}{'description'} = $env{'course.'.$cid.'.description'};
1.36      raeburn   957:         }
1.2       www       958:     }
1.54      raeburn   959:     return %courses;
1.18      raeburn   960: }
1.1       www       961: 
1.30      raeburn   962: sub course_chooser {
1.85      raeburn   963:     my ($multiple,$cdom,$cnum,$cleandesc,$canclone) = @_;
1.30      raeburn   964:     my $output; 
1.35      raeburn   965:     if ($multiple) {
1.32      albertel  966:         $output = '<label><input type="checkbox" name="course_id" value="'.$cdom.'_'.$cnum.'" />'."\n";
1.85      raeburn   967:     } elsif ((($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) && (!$canclone))  {
                    968:         if ($env{'form.form'} eq 'ccrs') {
                    969:             $output = &mt('No cloning for ').$env{'form.cloner'}."\n";
                    970:         } else {
                    971:             $output = &mt('No rights to clone')."\n";
                    972:         }
1.30      raeburn   973:     } else {
1.71      bisitz    974:         $output = '<input type="button" value="'.&mt('Select').'" onClick="gochoose('.
1.30      raeburn   975:                   "'".$cnum."','".$cdom."','".$cleandesc."')".'" />'."\n";
                    976:     }
                    977:     return $output;
1.49      raeburn   978: }
                    979: 
1.55      raeburn   980: sub gochoose_javascript {
1.57      raeburn   981:     my ($type,$multiple,$autosubmit,$lastaction) = @_;
1.55      raeburn   982:     my %elements = (
                    983:                      'Course' => {
                    984:                                  name  => 'coursepick',
                    985:                                  total => 'coursetotal',
                    986:                                  list  => 'courselist',
                    987:                                  },
1.83      raeburn   988:                      'Community' => {
1.88      raeburn   989:                                  name  => 'coursepick',
                    990:                                  total => 'coursetotal',
                    991:                                  list  => 'courselist',
1.55      raeburn   992:                               },
                    993:                     );
1.57      raeburn   994:     my $output .= qq|
1.55      raeburn   995: <script type="text/javascript">
1.57      raeburn   996: function gochoose(cname,cdom,cdesc) {
1.55      raeburn   997:     var openerForm = "$env{'form.form'}";
                    998:     courseCount = 0;
                    999:     var courses = '';
1.57      raeburn  1000: |;
                   1001:     if ($multiple) {
                   1002:         $output .= <<"ENDSCRIPT";
                   1003:     courseCount = 0;
                   1004:     var courses = '';
                   1005:     if (typeof(document.courselist.course_id.length) == 'undefined') {
                   1006:         // only 1 course checkbox was created
                   1007:         if (document.courselist.course_id.checked) {
                   1008:             courses = courses + document.courselist.course_id.value + "&&";
                   1009:             courseCount ++;
                   1010:         }
                   1011:     } else {
                   1012:         for (var j=0; j<document.courselist.course_id.length; j++) {
                   1013:             if (document.courselist.course_id[j].checked) {
                   1014:                 courses = courses + document.courselist.course_id[j].value + "&&";
1.55      raeburn  1015:                 courseCount ++;
                   1016:             }
1.57      raeburn  1017:         }
                   1018:     }
                   1019:     opener.document.$env{'form.form'}.$elements{$type}{'total'}.value = courseCount;
                   1020:     if (typeof(opener.document.$env{'form.form'}.$elements{$type}{'name'}.length) ==
                   1021:         'undefined') {
                   1022:         if (opener.document.$env{'form.form'}.$elements{$type}{'name'}.value == 'specific') {
                   1023:             opener.document.$env{'form.form'}.$elements{$type}{'name'}.checked = true;
1.55      raeburn  1024:         } else {
1.57      raeburn  1025:             opener.document.$env{'form.form'}.$elements{$type}{'name'}.checked = false;
1.55      raeburn  1026:         }
1.57      raeburn  1027:     } else {
                   1028:         for (var j=0; j<opener.document.$env{'form.form'}.$elements{$type}{'name'}.length; j++) {
                   1029:             if (opener.document.$env{'form.form'}.$elements{$type}{'name'}\[j].value == 'specific') {
                   1030:                 opener.document.$env{'form.form'}.$elements{$type}{'name'}\[j].checked = true;
1.55      raeburn  1031:             } else {
1.57      raeburn  1032:                 opener.document.$env{'form.form'}.$elements{$type}{'name'}\[j].checked = false;
1.54      raeburn  1033:             }
1.55      raeburn  1034:         }
1.57      raeburn  1035:     }
                   1036:     if (courseCount > 0) {
                   1037:         courses = courses.substr(0,courses.length-2);
                   1038:         opener.document.$env{'form.form'}.$elements{$type}{'list'}.value = courses;
                   1039:     }
                   1040: ENDSCRIPT
                   1041:     } else {
1.90      raeburn  1042:         my ($name_code,$type_code);
1.57      raeburn  1043:         if ($env{'form.cnameelement'} ne '') {
                   1044:             $name_code = 'opener.document.'.$env{'form.form'}.'.'.
                   1045:                           $env{'form.cnameelement'}.'.value=cdesc;';
1.55      raeburn  1046:         }
1.90      raeburn  1047:         if ($env{'form.typeelement'} ne '') {
                   1048:             $type_code = 'opener.document.'.$env{'form.form'}.'.'.
                   1049:                           $env{'form.typeelement'}.'.value=document.courselist.type;';
                   1050:         }
                   1051: 
1.57      raeburn  1052:         $output .= qq|
1.55      raeburn  1053:         $name_code
1.90      raeburn  1054:         $type_code
1.55      raeburn  1055:         opener.document.$env{'form.form'}.$env{'form.cnumelement'}.value=cname;
                   1056:         var slct=opener.document.$env{'form.form'}.$env{'form.cdomelement'};
                   1057:         if (slct.options == undefined) {
                   1058:             opener.document.$env{'form.form'}.$env{'form.cdomelement'}.value=cdom;
                   1059:         }
                   1060:         else {
                   1061:             var i;
                   1062:             for (i=0;i<slct.length;i++) {
                   1063:                 if (slct.options[i].value==cdom) { slct.selectedIndex=i; }
1.54      raeburn  1064:             }
                   1065:         }
1.57      raeburn  1066: |;
1.54      raeburn  1067:     }
1.57      raeburn  1068:     $output .= qq|
1.55      raeburn  1069:     if (openerForm == 'portform') {
                   1070:         document.courselist.cnum.value = cname;
                   1071:         document.courselist.cdom.value = cdom;
                   1072:     }
                   1073:     $autosubmit
                   1074:     $lastaction
1.54      raeburn  1075: }
1.55      raeburn  1076: </script>
1.57      raeburn  1077: |;
1.55      raeburn  1078:     return $output;
1.54      raeburn  1079: }
                   1080: 
1.55      raeburn  1081: 1;
                   1082: __END__
                   1083: 
                   1084: =pod
                   1085: 
                   1086: =head1 NAME
                   1087: 
                   1088: Apache::lonpickcourse - Search for course(s) based on user-specified criteria.   
                   1089: 
                   1090: =head1 SYNOPSIS
                   1091: 
                   1092: Invoked by other LON-CAPA modules, when course(s) need to be selected by the user. 
                   1093: 
                   1094: =head1 OVERVIEW
                   1095: 
                   1096: Two screens are typically displayed to the user.  The first is a set of criteria which are used to constrain the search for courses.
                   1097: 
                   1098: =head2 Search Criteria (Screen One)
                   1099: 
                   1100: =head3 Criteria:
                   1101: 
                   1102: =over 4
                   1103: 
                   1104: =item *
                   1105: Course Activity - how recently was course last visited by anyone.
                   1106: 
                   1107: =item *
                   1108: Course Domain - the domain of the course
                   1109: 
                   1110: =item *
1.84      raeburn  1111: Type - Course or Community
1.55      raeburn  1112: 
                   1113: =item *
                   1114: Course Institutional Code - the institutional identifier assigned to the course
                   1115: 
                   1116: =item * 
                   1117: Course Owner's Username - the username of the owner of the course (assigned by the Domain Coordinator and/or when the course was created).
                   1118: 
                   1119: =item *
                   1120: Course Owner's Domain - the domain of the owner of the course
                   1121: 
                   1122: =item * 
1.76      bisitz   1123: Course Title - text which appears in the Course Title, as set in the Course Parameters.
1.55      raeburn  1124: 
                   1125: =item *
                   1126: Course ID - the internal course number (course ID part after initial 'domain_') used by LON-CAPA (this criterion is only displayed to Domain Coordinators selecting a course in the same domain as their DC role).
                   1127: 
                   1128: =back
                   1129: 
                   1130: The criteria setting screen is not displayed if course picking is done by a user who does not have advanced privileges (as defined by $env{'user.adv'}).
                   1131: 
                   1132: =head2 Course Display (Screen Two)
                   1133: 
                   1134: A list of courses matching the search criteria is displayed.  If the user is not an advanced user, screen one will have been skipped and the courses displayed will be all courses in which the user has currently active roles. The information displayed for each course is:
                   1135: 
                   1136: =over 4
                   1137: 
                   1138: =item *
                   1139: Course description
                   1140: 
                   1141: =item *
                   1142: Domain description of course domain
                   1143: 
                   1144: =item *
                   1145: Course institutional code
                   1146: 
                   1147: =item * 
                   1148: Course owner (username:domain)   
                   1149:  
                   1150: =back
                   1151: 
                   1152: Depending on context, the display may include a single select box for each course, allowing selection of only a single course, or may include checkboxes allowing selection of more than one course.
                   1153: 
                   1154: Following selection, and/or submission, the course description, number and domain are transferred to the browser window from which the course picker window was opened.  In most cases, the child window containing the course picker screens will be closed.  However, in some cases closure will be delayed until a third screen has been displayed (e.g., setting of course-based conditional access controls for portfolio files).  In this case the page is generated via /adm/portfolio and the page features select boxes to allow the user to select roles, access types, sections and groups.
                   1155: 
                   1156: =head1 SUBROUTINES
                   1157: 
                   1158: =over 4
                   1159: 
                   1160: =item *
                   1161: X<create_user_javascript()>
                   1162: B<create_user_javascript($type)>:
                   1163: 
1.83      raeburn  1164: Input: 1 - $type  - the course type - Course or Community
1.55      raeburn  1165: 
                   1166: Output: 1 - $output - javascript wrapped in E<lt>scriptE<gt>E<lt>/scriptE<gt> tags 
                   1167: 
                   1168: Side Effects: None 
                   1169: 
                   1170: javascript code for reporting selected sections (as a string of comma separated sections) and groups in the selected course (as a comma separated list) then calling setSect() javscript function in the opener window (to populate section select box) then closing current window.
                   1171: 
                   1172: 
                   1173: =item *
                   1174: X<display_matched_courses()>
1.85      raeburn  1175: B<display_matched_courses($r,$type,$multiple,$action,$showroles,$cloneruname,$clonerudom,%courses)>:
1.55      raeburn  1176: 
1.85      raeburn  1177: Input: 7 - request object, course type, multiple (0 or 1), form action, whether to show roles (for course personnel filter), username of new course owner, domain of new course owner, hash of courses.
1.55      raeburn  1178: 
                   1179: Output: 0
                   1180: 
                   1181: Side Effects: prints select buttons (multiple = 0) or checkboxes (multiple = 1) and hidden form elements for selection of one or more courses which met search criteria.
                   1182: 
                   1183: =item *
                   1184: X<multiples_tag()>
                   1185: B<multiples_tag()>:
                   1186: 
                   1187: 
                   1188: Input: 0
                   1189: 
                   1190: Output: 2 - $jscript - javascript for check all/uncheck all checkboxes; $multelement - hidden form element with multiple set to 1.
                   1191: 
                   1192: Side Effects: None
                   1193: 
                   1194: =item *
                   1195: X<build_filters()>
1.90      raeburn  1196: B<build_filters($filterlist,$type,$roleelement,$multelement,$filter,$action,$numfiltersref,$caller,$cloneruname,$clonerudom,$typeelem)>:
1.55      raeburn  1197: 
                   1198: 
1.90      raeburn  1199: Input: 11 - anonymous array of search criteria; course type; $roleelement ; $multelement ; anonymous hash of criteria and their values; form action; ref to scalar (count of number of elements in institutional codes -- e.g., 4 for year, semester, department, and number); caller context (e.g., set to 'modifycourse' when routine is called from lonmodifycourse.pm), username and domain of new course owner who wants to clone, $tyepelem 
1.55      raeburn  1200: 
                   1201: Output: 1 - $output - HTML for display of search criteria, and hidden form elements. 
                   1202: 
                   1203: Side Effects: None
                   1204: 
                   1205: =item *
                   1206: X<search_courses()>
1.85      raeburn  1207: B<search_courses($r,$type,$onlyown,$filter,$numtitles,$cloneruname,$clonerudom)>:
1.55      raeburn  1208: 
                   1209: 
1.85      raeburn  1210: Input: 7 -  request object, course type, search scope: only courses in which user has active role (1), or any course (0); anonymous hash of criteria and their values; for institutional codes - number of categories; optional username of new course owner, optional domain of new course owner). Last two needed when search is for courses to clone from course request form, or course creation form (DC).   
1.55      raeburn  1211: 
                   1212: Output: 1 - %courses - hash of courses satisfying search criteria, keys = course IDs, values are corresponding colon-separated escaped description, institutional code, owner and type.
                   1213: 
                   1214: Side Effects: None
                   1215: 
                   1216: 
                   1217: =item *
                   1218: X<course_chooser()>
1.85      raeburn  1219: B<course_chooser($multiple,$cdom,$cnum,$cleandesc,$canclone)>:
1.55      raeburn  1220: 
1.85      raeburn  1221: Input: 5 - single (0) or multiple (1) courses; course domain, course number; course description; can clone course (1 if new course owner has cloning rights). 
1.55      raeburn  1222: 
1.85      raeburn  1223: Output: 1 - HTML for either checkbox (multiple=1) or select button (multiple=0) for user to indicate course selection.
1.55      raeburn  1224: 
                   1225: Side Effects: None
                   1226: 
                   1227: 
                   1228: =item *
                   1229: X<gochoose_javascript()>
1.57      raeburn  1230: B<gochoose_javascript($type,$multiple,$autosubmit,$lastaction)>:
1.55      raeburn  1231: 
1.66      raeburn  1232: Input: 4 - course type; single (0) or multiple courses (1); in context of DC selecting a CC role in a course: javascript code from &processpick(); final action to take after user chooses course(s):  either close window, or submit form for display of next page etc.
1.55      raeburn  1233: 
                   1234: Output: 1  $output - javascript wrapped in E<lt>scriptE<gt>E<lt>/scriptE<gt> tags
                   1235: 
                   1236: Side Effects: None
                   1237: 
                   1238: javascript functions used when user selects a course(s). Different behavior depending on context:
                   1239: 
                   1240: =back
                   1241: 
                   1242: =over 8
                   1243: 
                   1244: =item
                   1245: 
                   1246: (a) Domain Coordinator using MAIL to select recipients of broadcast e-mail - && separated list of selected courses written to hidden form element in opener window. Child window closes.
                   1247: 
                   1248: =item
                   1249: 
                   1250: (b) Domain Coordinator choosing a course for adoption of a CC role from roles screen - write course identifying information to hidden form elements in opener window and automatically submit role selection form in opener window. Child window closes.
                   1251: 
                   1252: =item
                   1253: 
                   1254: (c) Domain Coordinator creating a course, and selecting a course to clone - course number and domain written to visible form elements in opener window. Child window closes.
                   1255: 
                   1256: =item
1.54      raeburn  1257: 
1.55      raeburn  1258: (d) User selecting a course for course-based conditional access control for a portfolio file - form is submitted, and new page is displayed for selection of roles, access types, sections and groups to be used in conditional ACL. New page is generated by /adm/portfolio. 
1.54      raeburn  1259: 
1.55      raeburn  1260: =item
1.54      raeburn  1261: 
1.55      raeburn  1262: (e) Domain Coordinator assigning a role to a user - form is submitted, and new page does an onload call to a javascript function to (a) write lists of sections and groups to hidden elements in opener window, (b) call function in opener window to dynamically populate select box showing current sections.
1.54      raeburn  1263: 
1.55      raeburn  1264: =item
1.54      raeburn  1265: 
1.55      raeburn  1266: (f) Author modifying a rights entry in a .rights file - selected course number and domain are witten to visible form elements in opener window.  Child window closes. 
1.54      raeburn  1267: 
1.55      raeburn  1268: =item
1.49      raeburn  1269: 
1.55      raeburn  1270: (g) Scantron Operator uploading a scantron file to a course - course number is written to visible form element in opener window. Child window closes.
1.30      raeburn  1271: 
1.84      raeburn  1272: =item
                   1273: 
                   1274: (h) User requesting creation of a course, and selecting a course to clone - course number and domain written to visible form elements in opener window. Child window closes.
                   1275: 
1.55      raeburn  1276: =back
                   1277:      
                   1278: =cut

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