Annotation of loncom/interface/lonpickcourse.pm, revision 1.85

1.1       www         1: # The LearningOnline Network
                      2: # Pick a course
                      3: #
1.85    ! raeburn     4: # $Id: lonpickcourse.pm,v 1.84 2009/07/29 22:32:44 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']);
1.55      raeburn    54:     my ($type,$title,$jscript,$multelement,$multiple,$roleelement,
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:     }
                     78: 
1.85    ! raeburn    79:     # if called when a DC is creating a course
        !            80:     if ($env{'form.form'} eq 'ccrs') {
        !            81:         ($cloneruname,$clonerudom) = ($env{'form.cloner'} =~ /^($match_username):($match_domain)$/);
        !            82:     }
        !            83: 
        !            84:     # if called when requesting a course
        !            85:     if ($env{'form.form'} eq 'requestcrs') {
        !            86:         $cloneruname = $env{'user.name'};
        !            87:         $clonerudom =  $env{'user.domain'};
        !            88:     }
        !            89: 
1.54      raeburn    90:     my $onlyown = 0;
1.55      raeburn    91:     # if called to assign course-based portfolio access control
1.59      raeburn    92:     if ((($env{'form.form'} eq 'portform') && (!$env{'user.adv'}))) {
1.54      raeburn    93:         $onlyown = 1;
1.49      raeburn    94:     }
1.55      raeburn    95: 
                     96:     my %loaditem;
1.84      raeburn    97:     if (($env{'form.type'} eq 'Course') && ($env{'form.numtitles'})) {
                     98:         if (($env{'form.official'} eq 'on') && ($env{'form.state'} eq 'listing')) {
                     99:             $loaditem{'onload'} = 'setElements(document.filterpicker); ';
                    100:         }
1.78      raeburn   101:     }
                    102: 
1.66      raeburn   103:     if ((($env{'form.form'} eq 'cu') || ($env{'form.form'} eq 'studentform')) && 
                    104:         ($env{'form.pickedcourse'})) {
1.78      raeburn   105:             $loaditem{'onload'} .= 'setSections()';
1.30      raeburn   106:     }
1.85    ! raeburn   107:     my $js = &js_changer();
        !           108:     $r->print(&Apache::loncommon::start_page($title,$js,
1.42      albertel  109: 					     {'add_entries' => \%loaditem,
1.41      albertel  110: 					      'no_nav_bar'  => 1, }));
1.55      raeburn   111: 
                    112:     if ($env{'form.form'} eq 'portform') {
                    113:         $lastaction = 'document.courselist.submit()';
1.67      raeburn   114:     } elsif ($env{'form.form'} eq 'cu' || ($env{'form.form'} eq 'studentform' &&
                    115:         !$multiple)) {
1.55      raeburn   116:         $lastaction = 
                    117:              'document.courselist.pickedcourse.value = cdom+"_"+cname;'."\n".
                    118:              'document.courselist.submit();';
1.34      albertel  119:     } else {
1.55      raeburn   120:         $lastaction = 'self.close()';
1.1       www       121:     }
1.19      raeburn   122: 
1.55      raeburn   123:     # if called to assign a role in a course to a user via CUSR
1.66      raeburn   124:     if ($env{'form.form'} eq 'cu' || $env{'form.form'} eq 'studentform') {
1.68      raeburn   125:         $r->print(&create_user_javascript($type));
1.55      raeburn   126:     }
1.54      raeburn   127: 
1.55      raeburn   128:     # print javascript functions for choosing a course 
1.85    ! raeburn   129:     if ((($env{'form.gosearch'}) && ($env{'form.updater'} eq '')) || 
        !           130:         $onlyown) {
1.58      raeburn   131:         $r->print(&gochoose_javascript($type,$multiple,$autosubmit,$lastaction));
1.55      raeburn   132:     }
1.79      raeburn   133:     $r->print('<script type="text/javascript" language="Javascript">'.$jscript.
                    134:               '</script>');
1.55      raeburn   135:     $r->print($submitopener);
1.54      raeburn   136: 
1.55      raeburn   137: # ------------------------------------------ Display of filters to limit search
1.57      raeburn   138:     my $filter = {};
                    139:     my $action = '/adm/pickcourse';
1.79      raeburn   140:     my ($numtitles,$showroles,$nohost);
1.55      raeburn   141:     if (!$onlyown) {
                    142:         my $filterlist = ['domainfilter','descriptfilter',
1.79      raeburn   143:                           'instcodefilter'];
                    144:         if ($env{'form.form'} eq 'rules') {
                    145:             push(@{$filterlist},'personfilter');
                    146:             if (($env{'form.personfilter'} ne '') && ($env{'form.persondomfilter'} ne '')) {
                    147:                 if (&Apache::lonnet::homeserver($env{'form.personfilter'},
                    148:                                                  $env{'form.persondomfilter'}) eq 'no_host') {
                    149:                     $nohost = 1;
                    150:                 } else {
                    151:                     $showroles = 1;
                    152:                 } 
                    153:             }
                    154:         } else {
                    155:             push(@{$filterlist},'ownerfilter');
                    156:         }
1.55      raeburn   157:         # course ID filter for DCs only
                    158:         if ($env{'user.adv'} && $env{'form.domainfilter'} &&
                    159:             exists($env{'user.role.dc./'.$env{'form.domainfilter'}.'/'})) {
                    160:             push(@{$filterlist},'coursefilter');
                    161:         }
1.85    ! raeburn   162:         if ($cloneruname ne '' && $clonerudom ne '') {
        !           163:             push(@{$filterlist},'cloneableonly');
        !           164:         }
        !           165: 
1.55      raeburn   166:         $r->print(&build_filters($filterlist,$type,$roleelement,$multelement,
1.85    ! raeburn   167:                                  $filter,$action,\$numtitles,undef,$cloneruname,
        !           168:                                  $clonerudom));
1.55      raeburn   169:     }
1.54      raeburn   170: 
                    171: # ---------------------------------------------------------------- Get the data
1.85    ! raeburn   172:     if ((($env{'form.gosearch'}) && ($env{'form.updater'} eq '')) || 
        !           173:          $onlyown) {
        !           174:         my %courses = &search_courses($r,$type,$onlyown,$filter,$numtitles,
        !           175:                                       $cloneruname,$clonerudom);
1.79      raeburn   176:         if ($nohost) {
                    177:             $r->print ('<span class="LC_warning">'.
                    178:                        &mt('User does not exist - username: [_1], domain: [_2].',
                    179:                            '<b>'.$filter->{'personfilter'}.'</b>',
                    180:                            '<b>'.$filter->{'persondomfilter'}.'</b>').'</span>');
                    181:         } else {
1.85    ! raeburn   182:             &display_matched_courses($r,$type,$multiple,$action,$showroles,$cloneruname,
        !           183:                                      $clonerudom,%courses);
1.79      raeburn   184:         }
1.54      raeburn   185:     }
                    186:     $r->print(&Apache::loncommon::end_page());
                    187:     return OK;
                    188: }
                    189: 
1.85    ! raeburn   190: sub js_changer {
        !           191:     return <<"ENDJS";
        !           192: <script type="text/javascript">
        !           193: 
        !           194: function updateFilters(caller) {
        !           195:     if (typeof(caller) != "undefined") {
        !           196:         document.filterpicker.updater.value = caller.name;
        !           197:     }
        !           198:     document.filterpicker.submit();
        !           199: }
        !           200: 
        !           201: </script>
        !           202: 
        !           203: ENDJS
        !           204: 
        !           205: }
        !           206: 
1.66      raeburn   207: sub processpick {
                    208:     my $openerform = 'rolechoice';
                    209:     if ($env{'form.form'} eq 'studentform') {
                    210:         $openerform = $env{'form.form'};
                    211:     }
                    212:     my $process_pick = <<"ENDONE";
                    213: <script type="text/javascript">
                    214: function process_pick(dom) {
                    215:     var pickedCourse=opener.document.$openerform.$env{'form.cnumelement'}.value;
                    216:     var pickedDomain=opener.document.$openerform.$env{'form.cdomelement'}.value;
                    217:     var okDomain = 0;
                    218: ENDONE
                    219:     if ($openerform eq 'rolechoice') {
                    220:         $process_pick .= <<"ENDTWO";
                    221:     if (pickedDomain == dom) {
                    222:         if (pickedCourse != '') {
                    223:             var courseTarget = "cc./"+pickedDomain+"/"+pickedCourse
                    224:             opener.document.title='Role selected. Please stand by.';
                    225:             opener.status='Role selected. Please stand by.';
                    226:             opener.document.rolechoice.newrole.value=courseTarget
                    227:             opener.document.rolechoice.submit();
                    228:         }
                    229:     } 
                    230:     else {
                    231:         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");
                    232:     }
                    233: ENDTWO
                    234:     } else {
                    235:         $process_pick .= <<"ENDTHREE";
                    236:     if (pickedDomain != dom) {
                    237:         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");
                    238:         return;
                    239:     }
                    240: ENDTHREE
                    241:     }
                    242:     $process_pick .= "
                    243: }
                    244: 
                    245: </script>
                    246: ";
                    247:     return $process_pick;
                    248: }
                    249: 
1.55      raeburn   250: sub create_user_javascript {
                    251:     my ($type) = @_;
                    252:     my $output;
                    253:     #javascript for reporting sections and groups then closing
                    254:     if ($env{'form.pickedcourse'}) {
                    255:         my ($cdom,$cnum) = split/_/,$env{'form.pickedcourse'};
                    256:         my $sec_element = 'currsec';
                    257:         my $grplist_element = 'groups';
                    258:         my ($sections,$groups) =
                    259:           &Apache::loncommon::get_secgrprole_info($cdom,$cnum,'',$type);
                    260:         my $num_sections = scalar(@{$sections});
                    261:         my $seclist = join(',',@{$sections});
                    262:         my $num_groups = scalar(@{$groups});
                    263:         my $groupslist = join(',',@{$groups});
                    264:         $output = qq|
                    265: <script type="text/javascript">
                    266: function setSections() {
                    267:     opener.document.$env{"form.form"}.$grplist_element.value='$groupslist';
                    268:     window.opener.setSect('$seclist');
                    269:     self.close()
                    270: }
                    271: </script>
                    272: |;
                    273: ;
                    274:     }
                    275:     return $output;
                    276: }
                    277: 
1.54      raeburn   278: sub display_matched_courses {
1.85    ! raeburn   279:     my ($r,$type,$multiple,$action,$showroles,$cloneruname,$clonerudom,%courses) = @_;
1.55      raeburn   280:     if ($env{'form.form'} eq 'portform') {
                    281:         $action = '/adm/portfolio';
                    282:     }
1.68      raeburn   283:     my $numcourses = keys(%courses);
1.55      raeburn   284:     $r->print('<form name="courselist" method="post" action="'.$action.'">');
1.68      raeburn   285:     if ($env{'form.form'} eq 'modifycourse') {
                    286:         if ($numcourses > 0) {
                    287:             my $cctitle = &Apache::lonnet::plaintext('cc',$type);
                    288:             my $dctitle = &Apache::lonnet::plaintext('dc');
                    289:             my $ccrolechk = ' checked="checked" ';
                    290:             my $menuchk = ' ';
                    291:             if ($env{'form.prevphase'} ne '') {
                    292:                  $ccrolechk = ' ';
                    293:                  $menuchk = ' checked="checked" ';
                    294:             }
                    295:             $r->print(
1.75      bisitz    296:                 '<fieldset>'
                    297:                .'<legend>'.&mt('Action').'</legend>'
                    298:                .'<div class="LC_nobreak"><label>'
                    299:                .'<input type="radio" name="phase" value="ccrole"'.$ccrolechk.'/>'
                    300:                .'&nbsp;'.&mt('Enter the course with the role of [_1].',$cctitle)
                    301:                .'</label></div>'
                    302:                .'<div class="LC_nobreak"><label>'
                    303:                .'<input type="radio" name="phase" value="menu"'.$menuchk.'/>&nbsp;'
                    304:                .&mt('View or modify course settings which only a [_1] may modify.',$dctitle)
                    305:                .'</label></div>'
                    306:                .'</fieldset>'
                    307:                .'<br />'
                    308:             );
1.68      raeburn   309:         }
                    310:     }
1.54      raeburn   311:     my %by_descrip;
                    312:     foreach my $course (keys(%courses)) {
                    313:         my $descr;
1.64      raeburn   314:         if (ref($courses{$course}) eq 'HASH') {
1.65      raeburn   315:             $descr = $courses{$course}{'description'};
1.64      raeburn   316:         } elsif ($courses{$course} =~ m/^([^:]*):/i) {
1.54      raeburn   317:             $descr = &unescape($1);
1.34      albertel  318:         } else {
1.54      raeburn   319:             $descr = &unescape($courses{$course});
                    320:         }
                    321:         my $description = $descr;
                    322:         push (@{$by_descrip{$description}}, $course);
                    323:     }
1.71      bisitz    324:  
1.54      raeburn   325:     if ($numcourses > 1 && $multiple) {
                    326:         $r->print('<input type="button" value="check all"
                    327:                   onclick="javascript:checkAll(document.courselist.course_id)" />
                    328:                   &nbsp;&nbsp;<input type="button" value="uncheck all"
                    329:                   onclick="javascript:uncheckAll(document.courselist.course_id)" />
                    330:                   <br /><br />');
                    331:     }
1.71      bisitz    332: 
                    333:     if (%courses) {
                    334:         $r->print(&Apache::loncommon::start_data_table());
                    335:         $r->print(&Apache::loncommon::start_data_table_header_row());
                    336:         $r->print('<th>'.&mt('Select').'</th>'
1.76      bisitz    337:                  .'<th>'.&mt('Course Title').'</th>'
1.71      bisitz    338:                  .'<th>'.&mt('Domain').'</th>'
                    339:                  .'<th>'.&mt('Course Code').'</th>'
1.72      raeburn   340:                  .'<th>'.&mt('Owner/Co-owner(s)').'</th>'
1.71      bisitz    341:                  .'<th>'.&mt('Type').'</th>'
                    342:                  );
1.79      raeburn   343:         if ($showroles) {
                    344:             $r->print('<th>'.&mt("Role(s) for [_1]",
                    345:                 &Apache::loncommon::plainname($env{'form.personfilter'},
                    346:                                               $env{'form.persondomfilter'},'firstname')).'</th>');
                    347:         }
1.71      bisitz    348:         $r->print(&Apache::loncommon::end_data_table_header_row());
                    349:     }
1.54      raeburn   350:     foreach my $description (sort { lc($a) cmp lc($b) } (keys(%by_descrip))) {
                    351:         foreach my $course (@{$by_descrip{$description}}) {
1.72      raeburn   352:             $r->print(&Apache::loncommon::start_data_table_row());
1.54      raeburn   353:             my $cleandesc=&HTML::Entities::encode($description,'<>&"');
                    354:             $cleandesc=~s/'/\\'/g;
                    355:             my ($cdom,$cnum)=split(/\_/,$course);
1.85    ! raeburn   356:             my ($descr,$instcode,$ttype,$canclone,@owners);
1.64      raeburn   357:             if (ref($courses{$course}) eq 'HASH') {
                    358:                 $descr = $courses{$course}{'description'};
1.85    ! raeburn   359:                 $instcode = $courses{$course}{'inst_code'};
        !           360:                 $ttype = $courses{$course}{'type'};
        !           361:                 if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
        !           362:                     my $cloners = $courses{$course}{'cloners'};
        !           363:                     if ($cloners ne '') { 
        !           364:                         my @cloneable = split(',',$cloners);
        !           365:                         if (grep(/^\*$/,@cloneable)) {
        !           366:                             $canclone = 1;
        !           367:                         }
        !           368:                         if (grep(/^\*:\Q$env{'form.clonerudom'}\E$/,@cloneable)) {
        !           369:                             $canclone = 1;
        !           370:                         }
        !           371:                         if (grep(/^\Q$cloneruname\E:\Q$clonerudom\E$/,@cloneable)) {
        !           372:                             $canclone = 1;
        !           373:                         }
        !           374:                     }
        !           375:                 }
1.64      raeburn   376:                 push(@owners,&unescape($courses{$course}{'owner'}));
                    377:                 if (ref($courses{$course}{'co-owners'}) eq 'ARRAY') {
                    378:                     foreach my $item (@{$courses{$course}{'co-owners'}}) {
                    379:                         push(@owners,&unescape($item));
                    380:                     }
                    381:                 }
                    382:             } else {
                    383:                 my $singleowner; 
                    384:                 ($descr,$instcode,$singleowner,$ttype)=split(/:/,$courses{$course});
                    385:                 push(@owners,&unescape($singleowner));
                    386:             }
1.72      raeburn   387:             my $ownerstr = join(', ',@owners);
1.85    ! raeburn   388:             $r->print('<td>'.&course_chooser($multiple,$cdom,$cnum,$cleandesc,$canclone).'</td>');
1.71      bisitz    389:             $r->print('<td>'.$description.'</td>');
                    390:             $r->print('<td>');
                    391:             $r->print(&Apache::lonnet::domain($cdom,'description')?
                    392:                       $cdom.' ('.&Apache::lonnet::domain($cdom,'description').')':$cdom);
                    393:             $r->print('</td>');
                    394:             $r->print('<td>');
1.64      raeburn   395:             if ($instcode ne '') {
1.71      bisitz    396:                 $r->print(&unescape($instcode));
                    397:             } else {
                    398:                 $r->print('&nbsp;');
1.54      raeburn   399:             }
1.71      bisitz    400:             $r->print('</td>');
1.72      raeburn   401:             $r->print('<td>'.$ownerstr.'</td>');
1.71      bisitz    402:             $r->print('<td>');
1.64      raeburn   403:             if ($ttype ne '') {
1.71      bisitz    404:                 $r->print(&mt(&unescape($ttype)));
                    405:             } else {
                    406:                 $r->print('&nbsp;');
1.23      raeburn   407:             }
1.71      bisitz    408:             $r->print('</td>');
1.79      raeburn   409:             if ($showroles) {
                    410:                 $r->print('<td>');
                    411:                 my $rolestr;
                    412:                 if (ref($courses{$course}{'roles'}) eq 'ARRAY') {
                    413:                     my @roles = sort(@{$courses{$course}{'roles'}});
                    414:                     foreach my $role (@roles) {
                    415:                         if ($role =~ /^cr/) {
                    416:                             my (undef,$crdom,$crname,$crtitle) = split('/',$role);
                    417:                             $rolestr .= $crtitle.', ';
                    418:                         } else {
                    419:                             $rolestr .= &Apache::lonnet::plaintext($role,$ttype).', ';
                    420:                         }
                    421:                     }
                    422:                     $rolestr =~ s/\, $//;
                    423:                 }
                    424:                 $r->print($rolestr.'</td>');
                    425:             }
1.54      raeburn   426:             if ($multiple) { $r->print("</label>\n"); }
1.72      raeburn   427:             $r->print(&Apache::loncommon::end_data_table_row());
1.71      bisitz    428:             # $r->print("<br />\n");
1.19      raeburn   429:         }
                    430:     }
1.72      raeburn   431:     if (%courses) {
                    432:         $r->print(&Apache::loncommon::end_data_table());
                    433:     }
1.71      bisitz    434: 
1.54      raeburn   435:     if (!%courses) {
                    436:         $r->print(&mt('None found'));
                    437:     } elsif ($multiple) {
1.57      raeburn   438:         $r->print('<input type="button" value="Submit" onClick="gochoose('."'','','')".'" />');
1.54      raeburn   439:     }
                    440:     $r->print('<input type="hidden" name="form" value="'.$env{'form.form'}.'" />'.
                    441:               "\n".'<input type="hidden" name="pickedcourse" value="" />'."\n".
                    442:               '<input type="hidden" name="type" value="'.$type.'" />'."\n");
                    443:     if ((exists($env{'form.roleelement'})) && ($env{'form.form'} eq 'rolechoice')) {
                    444:         $r->print('<input type="hidden" name="roleelement" value="'.
                    445:                   $env{'form.roleelement'}.'" />'."\n");
                    446:     }
1.55      raeburn   447:     if ($env{'form.form'} eq 'portform') {
                    448:         $r->print('<input type="hidden" name="cnum" value="" />');
                    449:         $r->print('<input type="hidden" name="cdom" value="" />');
                    450:         $r->print('<input type="hidden" name="setroles" value="'.$env{'form.setroles'}.'" />');
                    451:         $r->print('<input type="hidden" name="action" value="rolepicker" />');
1.57      raeburn   452:     } elsif ($env{'form.form'} eq 'modifycourse') {
1.85    ! raeburn   453:         $r->print(&Apache::lonhtmlcommon::echo_form_input(['phase','pickedcourse','type','form','numtitles','state']));
1.57      raeburn   454:     } else {
                    455:         $r->print('<input type="hidden" name="cnumelement" value="'.
                    456:                   $env{'form.cnumelement'}.'" />'."\n".  
                    457:                   '<input type="hidden" name="cdomelement" value="'.
                    458:                   $env{'form.cdomelement'}.'" />'."\n");
1.55      raeburn   459:     }
1.78      raeburn   460:     if ((exists($env{'form.fixeddom'})) && ($env{'form.form'} eq 'rules')) {
                    461:         $r->print('<input type="hidden" name="fixeddom" value="'.
                    462:                   $env{'form.fixeddom'}.'" />');
                    463:     }
                    464:     if ($env{'form.numtitles'}) {
                    465:         $r->print('<input type="hidden" name="numtitles" value="'.
                    466:                   $env{'form.numtitles'}.'" />');
                    467:     }
1.54      raeburn   468:     $r->print("</form>\n");
                    469:     return;
                    470: }
                    471: 
                    472: sub multiples_tag {
1.55      raeburn   473:     my $jscript = &Apache::loncommon::check_uncheck_jscript();
                    474:     my $multelement = '<input type="hidden" name="multiple" value="1" />';
                    475:     return ($jscript,$multelement);
1.1       www       476: }
1.30      raeburn   477: 
1.54      raeburn   478: sub build_filters {
1.57      raeburn   479:     my ($filterlist,$type,$roleelement,$multelement,$filter,$action,
1.85    ! raeburn   480:         $numtitlesref,$caller,$cloneruname,$clonerudom) = @_;
        !           481:     my ($list,$formname,$fixeddom,$codedom,$jscript);
        !           482:     $codedom = $env{'request.role.domain'};
1.57      raeburn   483:     if (defined($env{'form.form'})) {
1.81      raeburn   484:         $formname = $env{'form.form'};
                    485:     } else {
                    486:         $formname = $caller;
1.57      raeburn   487:     }
1.84      raeburn   488:     my $onchange;
                    489:     unless ($env{'form.interface'} eq 'textual') {
1.85    ! raeburn   490:         $onchange = 'javascript:updateFilters(this)';
1.84      raeburn   491:     }
1.79      raeburn   492:     my ($domainselectform,$sincefilterform,$ownerdomselectform,$persondomselectform,
1.78      raeburn   493:         $instcodeform,$typeselectform,$instcodetitle);
1.55      raeburn   494:     foreach my $item (@{$filterlist}) {
1.54      raeburn   495:         $filter->{$item} = $env{'form.'.$item};
                    496:         if ($item ne 'descriptfilter' && $item ne 'instcodefilter') {
1.79      raeburn   497: 	    if ($item eq 'domainfilter') {
1.61      albertel  498: 		$filter->{$item} = &LONCAPA::clean_domain($filter->{$item});
                    499: 	    } elsif ($item eq 'coursefilter') {
                    500: 		$filter->{$item} = &LONCAPA::clean_courseid($filter->{$item});
                    501: 	    } elsif ($item eq 'ownerfilter') {
                    502: 		$filter->{$item} = &LONCAPA::clean_username($filter->{$item});
1.79      raeburn   503:                 $filter->{'ownerdomfilter'} = 
                    504:                     &LONCAPA::clean_domain($env{'form.ownerdomfilter'});
                    505:                 $ownerdomselectform =
                    506:                     &Apache::loncommon::select_dom_form($filter->{'ownerdomfilter'},
                    507:                                                         'ownerdomfilter',1);
                    508:             } elsif ($item eq 'personfilter') {
                    509:                 $filter->{$item} = &LONCAPA::clean_username($filter->{$item});
                    510:                 if ($env{'form.persondomfilter'} eq '') {
1.85    ! raeburn   511:                     unless ($env{'form.gosearch'}) {
1.79      raeburn   512:                         $filter->{'persondomfilter'} = $env{'request.role.domain'};
                    513:                     }
                    514:                 } else {
                    515:                     $filter->{'persondomfilter'} =
                    516:                         &LONCAPA::clean_domain($env{'form.persondomfilter'});
                    517:                 }
                    518:                 $persondomselectform =
                    519:                     &Apache::loncommon::select_dom_form($filter->{'persondomfilter'},
                    520:                                                         'persondomfilter',1);
1.61      albertel  521: 	    } else {
                    522: 		$filter->{$item} =~ s/\W//g;
                    523: 	    }
1.54      raeburn   524:             if (!$filter->{$item}) {
                    525:                 $filter->{$item} = '';
                    526:             }
                    527:         }
                    528:         if ($item eq 'domainfilter') {
1.63      albertel  529: 	    my $allow_blank = 1;
                    530: 	    if ($formname eq 'portform') {
                    531: 		$filter->{$item} ||= $env{'user.domain'};
                    532: 		$allow_blank=0;
1.67      raeburn   533: 	    } elsif ($formname eq 'studentform') {
                    534:                 $filter->{$item} ||= $env{'request.role.domain'};
                    535:                 $allow_blank=0;
                    536:             }
1.78      raeburn   537:             if ($env{'form.fixeddom'}) {
                    538:                 $domainselectform = '<input type="hidden" name="domainfilter"'.
                    539:                                     'value="'.$env{'request.role.domain'}.'" />'.
                    540:                                     &Apache::lonnet::domain($env{'request.role.domain'},
                    541:                                                             'description');
                    542:                 $codedom = $env{'request.role.domain'};
1.79      raeburn   543:             } else {
1.78      raeburn   544:                 $domainselectform =
                    545: 		    &Apache::loncommon::select_dom_form($filter->{$item},
                    546: 		    				        'domainfilter',
1.84      raeburn   547: 						        $allow_blank,'',$onchange);
1.78      raeburn   548:                 $codedom = $filter->{'domainfilter'};
                    549:             }
1.54      raeburn   550:         } else {
                    551:             $list->{$item} = &HTML::Entities::encode($filter->{$item},'<>&"');
                    552:         }
                    553:     }
                    554: 
                    555:     # last course activity filter and selection
                    556:     $filter->{'sincefilter'} = $env{'form.sincefilter'};
                    557:     $filter->{'sincefilter'} =~ s/[^\d-]//g;
                    558:     if (!$filter->{'sincefilter'}) { $filter->{'sincefilter'}=-1; }
                    559:     $sincefilterform=&Apache::loncommon::select_form($filter->{'sincefilter'},
                    560:        'sincefilter',('-1'=>'',
                    561:                       '86400' => 'today',
                    562:                       '604800' => 'last week',
                    563:                       '2592000' => 'last month',
                    564:                       '7776000' => 'last three months',
                    565:                       '15552000' => 'last six months',
                    566:                       '31104000' => 'last year',
                    567:                       'select_form_order' =>
                    568:                       ['-1','86400','604800','2592000','7776000',
                    569:                       '15552000','31104000']));
                    570: 
                    571:     my %lt = (
1.74      bisitz    572:               'cac' => &mt("$type Activity"),
1.76      bisitz    573:               'cde' => &mt("$type Title"),
1.74      bisitz    574:               'cdo' => &mt("$type Domain"),
1.78      raeburn   575:               'ins' => &mt('Institutional Code'),
                    576:               'inc' => &mt('Institutional Categorization'),
1.79      raeburn   577:               'cow' => &mt("$type Owner/Co-owner"),
                    578:               'cop' => &mt("$type Personnel Includes"),
1.84      raeburn   579:               'cog' => &mt('Type')
1.54      raeburn   580:              );
1.49      raeburn   581: 
1.84      raeburn   582:     $typeselectform =  '<select name="type" size="1"';
                    583:     if ($onchange) {
1.85    ! raeburn   584:         $typeselectform .= 'onchange="'.$onchange.'"';
1.84      raeburn   585:     }
                    586:     $typeselectform .= '>'."\n";
1.85    ! raeburn   587:     
        !           588:     my ($cloneableonlyform,$cloneabletitle);
        !           589:     if (exists($filter->{'cloneableonly'})) {
        !           590:         my $cloneableon = '';
        !           591:         my $cloneableoff = ' checked="checked"';
        !           592:         if ($filter->{'cloneableonly'}) {
        !           593:             $cloneableon = $cloneableoff;
        !           594:             $cloneableoff = '';
        !           595:         }
        !           596:         $cloneableonlyform = '<span class="LC_nobreak"><label><input type="radio" name="cloneableonly" value="1" '.$cloneableon.'/>&nbsp;'.&mt('Yes').'</label>'.('&nbsp;'x3).'<label><input type="radio" name="cloneableonly" value="" '.$cloneableoff.' />&nbsp;'.&mt('No').'</label></span>';
        !           597:         if ($env{'form.form'} eq 'ccrs') {
        !           598:             $cloneabletitle = &mt('Cloneable for').' '.$cloneruname.':'.$clonerudom;
        !           599:         } else {
        !           600:             $cloneabletitle = &mt('Cloneable by you');
        !           601:         }
        !           602:     }
1.80      raeburn   603:     my $officialjs;
1.54      raeburn   604:     if ($type eq 'Course') {
1.85    ! raeburn   605:         if (exists($filter->{'instcodefilter'})) {
        !           606:             if (($env{'form.fixeddom'}) || ($formname eq 'requestcrs')
        !           607:                 || ($formname eq 'modifycourse')) {
        !           608:                 $officialjs = 1;
        !           609:                 ($instcodeform,$jscript,$$numtitlesref) = 
        !           610:                     &instcode_selectors($codedom,'filterpicker',$officialjs);
        !           611:                 if ($jscript) {
        !           612:                     $jscript = '<script type="text/javascript" language="Javascript">'.
        !           613:                                $jscript.'</script>'."\n";
        !           614:                 }
        !           615:             }
        !           616:             if ($instcodeform eq '') {
        !           617:                 $instcodeform = 
        !           618:                     '<input type="text" name="instcodefilter" size="10" value="'.
        !           619:                     $list->{'instcodefilter'}.'" />';
        !           620:                 $instcodetitle = $lt{'ins'};
        !           621:             } else {
        !           622:                 $instcodetitle = $lt{'inc'};
        !           623:             }
        !           624:             if ($env{'form.fixeddom'}) {
        !           625:                 $instcodetitle .= '<br />('.$codedom.')';
        !           626:             }
1.78      raeburn   627:         }
1.54      raeburn   628:     }
1.84      raeburn   629: 
1.83      raeburn   630:     foreach my $posstype ('Course','Community') {
1.72      raeburn   631:         $typeselectform.='<option value="'.$posstype.'"'.
1.73      bisitz    632:             ($posstype eq $type ? ' selected="selected" ' : ''). ">".&mt($posstype)."</option>\n";
1.54      raeburn   633:     }
                    634:     $typeselectform.="</select>";
1.57      raeburn   635:     my $output = qq|
1.85    ! raeburn   636: <form method="post" name="filterpicker" action="$action">
1.57      raeburn   637: <input type="hidden" name="form" value="$formname" />
                    638: |;
                    639:     if ($formname eq 'modifycourse') {
1.68      raeburn   640:         $output .= '<input type="hidden" name="phase" value="courselist" />'."\n".
                    641:                    '<input type="hidden" name="prevphase" value="'.
                    642:                    $env{'form.prevphase'}.'" />'."\n";
                    643:     } else {
1.57      raeburn   644:         my $name_input;
                    645:         if ($env{'form.cnameelement'} ne '') {
                    646:             $name_input = '<input type="hidden" name="cnameelement" value="'.
                    647:                           $env{'form.cnameelement'}.'" />';
                    648:         }
                    649:         $output .= qq|
1.27      albertel  650: <input type="hidden" name="cnumelement" value="$env{'form.cnumelement'}" />
                    651: <input type="hidden" name="cdomelement" value="$env{'form.cdomelement'}" />
1.13      albertel  652: $name_input
1.18      raeburn   653: $roleelement
1.35      raeburn   654: $multelement
1.57      raeburn   655: |;
1.59      raeburn   656:         if ($formname eq 'portform') {
1.78      raeburn   657:             $output .= '<input type="hidden" name="setroles" value="'.$env{'form.setroles'}.'" />'."\n";
1.59      raeburn   658:         }
1.57      raeburn   659:     }
1.78      raeburn   660:     if ($env{'form.fixeddom'}) { 
                    661:         $output .= '<input type="hidden" name="fixeddom" value="'.$env{'form.fixeddom'}.'" />'."\n";
                    662:     }
1.74      bisitz    663:     $output .= "<br />\n".&Apache::lonhtmlcommon::start_pick_box();
1.57      raeburn   664:     if ($sincefilterform) { 
1.74      bisitz    665:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cac'})
                    666:                   .$sincefilterform
                    667:                   .&Apache::lonhtmlcommon::row_closure();
1.57      raeburn   668:     }
                    669:     if ($domainselectform) {
1.74      bisitz    670:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cdo'})
                    671:                   .$domainselectform
                    672:                   .&Apache::lonhtmlcommon::row_closure();
1.78      raeburn   673:     } 
1.57      raeburn   674:     if ($typeselectform) {
1.74      bisitz    675:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cog'})
                    676:                   .$typeselectform
                    677:                   .&Apache::lonhtmlcommon::row_closure();
1.57      raeburn   678:     }
                    679:     if ($instcodeform) {
1.78      raeburn   680:         $output .= &Apache::lonhtmlcommon::row_title($instcodetitle)
1.74      bisitz    681:                   .$instcodeform
                    682:                   .&Apache::lonhtmlcommon::row_closure();
1.57      raeburn   683:     }
                    684:     if (exists($filter->{'ownerfilter'})) {
1.79      raeburn   685:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cow'}).
                    686:                    '<table><tr><td>'.&mt('Username').'<br />'.
                    687:                    '<input type="text" name="ownerfilter" size="20" value="'.
                    688:                    $list->{'ownerfilter'}.'" /></td><td>'.&mt('Domain').'<br />'.
                    689:                    $ownerdomselectform.'</td></tr></table>'.
                    690:                    &Apache::lonhtmlcommon::row_closure();
                    691:     }
                    692:     if (exists($filter->{'personfilter'})) {
                    693:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cop'}).
                    694:                    '<table><tr><td>'.&mt('Username').'<br />'.
                    695:                    '<input type="text" name="personfilter" size="20" value="'.
                    696:                    $list->{'personfilter'}.'" /></td><td>'.&mt('Domain').'<br />'.
                    697:                    $persondomselectform.'</td></tr></table>'.
                    698:                    &Apache::lonhtmlcommon::row_closure();
1.57      raeburn   699:     }
                    700:     if (exists($filter->{'coursefilter'})) {
1.74      bisitz    701:         $output .= &Apache::lonhtmlcommon::row_title(&mt('LON-CAPA course ID'))
                    702:                   .'<input type="text" name="coursefilter" size="25" value="'
                    703:                   .$list->{'coursefilter'}.'" />'
                    704:                   .&Apache::lonhtmlcommon::row_closure();
1.57      raeburn   705:     }
1.85    ! raeburn   706:     if ($cloneableonlyform) {
        !           707:         $output .= &Apache::lonhtmlcommon::row_title($cloneabletitle).
        !           708:                    $cloneableonlyform.&Apache::lonhtmlcommon::row_closure();
        !           709:     }
1.57      raeburn   710:     if (exists($filter->{'descriptfilter'})) {
1.74      bisitz    711:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cde'})
                    712:                   .'<input type="text" name="descriptfilter" size="40" value="'
                    713:                   .$list->{'descriptfilter'}.'" />'
                    714:                   .&Apache::lonhtmlcommon::row_closure(1);
1.57      raeburn   715:     }
1.85    ! raeburn   716:     $output .= &Apache::lonhtmlcommon::end_pick_box().'<p>';
        !           717:     my $warning;
        !           718:     if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
        !           719:         my $cloneruhome=&Apache::lonnet::homeserver($cloneruname,$clonerudom);
        !           720:         my $cc_clone;
        !           721:         if ($cloneruhome eq 'no_host') {
        !           722:             $warning = '<div class="LC_error">'.&mt('Intended course owner does not exist').
        !           723:                        '</div>';
        !           724:         } else {
        !           725:             if ($env{'form.form'} eq 'ccrs') {
        !           726:                 $output .= '<input type="hidden" name="cloner" value="'.$env{'form.cloner'}.'" />'."\n";
        !           727:             }
        !           728:             my %ccroles = &Apache::lonnet::get_my_roles($cloneruname,$clonerudom,
        !           729:                                                         'userroles',['active'], ['cc']);
        !           730:             foreach my $key (sort(keys(%ccroles))) {
        !           731:                 my ($cnum,$cdom,$role) = split(':',$key);
        !           732:                 $cc_clone .= $cdom.':'.$cnum.'&';
        !           733:             }
        !           734:             $cc_clone =~ s/\&$//;
        !           735:         }
        !           736:         if ($cc_clone ne '') {
        !           737:             $output .= '<input type="hidden" name="cc_clone" value="'.$cc_clone.'" />';
        !           738:         }
        !           739:     }
        !           740:     $output .= '<input type="hidden" name="updater" value="">'."\n".
1.84      raeburn   741:                '<input type="submit" name="gosearch" value="'. 
1.70      raeburn   742:                &mt('Search').'" /></p>'."\n".'</form>'."\n".'<hr />'."\n";
1.85    ! raeburn   743:     return $jscript.$warning.$output;
1.78      raeburn   744: }
                    745: 
                    746: sub instcode_selectors {
1.80      raeburn   747:     my ($codedom,$formname,$officialjs) = @_;
1.78      raeburn   748:     my ($output,@codetitles,%cat_titles,%cat_order,%cat_items);
                    749:     my ($jscript,$totcodes,$numtitles,$lasttitle) =
                    750:         &Apache::courseclassifier::instcode_selectors_data($codedom,$formname,
1.80      raeburn   751:                            \%cat_items,\@codetitles,\%cat_titles,\%cat_order,$officialjs);
1.78      raeburn   752:     if ($numtitles > 0) {
1.84      raeburn   753:         my $official = ' checked="checked" ';
                    754:         my $unofficial = '';
                    755:         if ($env{'form.official'} eq 'off') {
                    756:             $unofficial = $official;
                    757:             $official = '';
1.80      raeburn   758:         }
                    759:         $output .= '<span class="LC_nobreak">'.&mt('Official course:').'&nbsp;<label>'.
1.84      raeburn   760:                    '<input type="radio" name="official" value="on"'.$official.' />'.
1.80      raeburn   761:                    &mt('Yes').'</label>'.('&nbsp;'x3).'<label>'.
1.84      raeburn   762:                    '<input type="radio" name="official" value="off"'.$unofficial.
1.80      raeburn   763:                    ' onclick="toggleOfficial();" />'.&mt('No').'</label></span><br />'.
                    764:                    &Apache::courseclassifier::build_instcode_selectors($numtitles,
                    765:                    $lasttitle,\%cat_items,\@codetitles,\%cat_titles,\%cat_order)."\n".
                    766:                    '<input type="hidden" name="numtitles" value="'.$numtitles.'" />'."\n".
                    767:                    '<input type="hidden" name="state" value="listing" />'."\n";
1.78      raeburn   768:  
                    769:     }
                    770:     return ($output,$jscript,$numtitles);
1.54      raeburn   771: }
                    772: 
                    773: sub search_courses {
1.85    ! raeburn   774:     my ($r,$type,$onlyown,$filter,$numtitles,$cloneruname,$clonerudom) = @_;
        !           775:     my (%courses,%showcourses,$cloner);
1.54      raeburn   776:     if (!$onlyown) {
1.71      bisitz    777:         $r->print(&mt('Searching ...').'<br />&nbsp;<br />');
1.6       www       778:         $r->rflush();
1.54      raeburn   779:         if (($filter->{'ownerfilter'} ne '') ||
                    780:             ($filter->{'ownerdomfilter'} ne '')) {
                    781:             $filter->{'combownerfilter'} = $filter->{'ownerfilter'}.':'.
                    782:                                            $filter->{'ownerdomfilter'};
                    783:         }
1.80      raeburn   784:         foreach my $item ('descriptfilter','coursefilter','combownerfilter') {
1.54      raeburn   785:             if (!$filter->{$item}) {
                    786:                 $filter->{$item}='.';
                    787:             }
1.52      raeburn   788:         }
1.54      raeburn   789:         my $timefilter = 
                    790:            ($filter->{'sincefilter'}==-1?1:time-$filter->{'sincefilter'});
1.78      raeburn   791:         my ($instcodefilter,$regexpok);
                    792:         if ($numtitles) {
1.84      raeburn   793:             if ($env{'form.official'} eq 'on') {
1.80      raeburn   794:                 $instcodefilter = 
1.84      raeburn   795:                     &Apache::courseclassifier::instcode_search_str($filter->{'domainfilter'},$numtitles);
1.80      raeburn   796:                 $regexpok = 1;
1.84      raeburn   797:             } elsif ($env{'form.official'} eq 'off') {
                    798:                 $instcodefilter = &Apache::courseclassifier::instcode_search_str($filter->{'domainfilter'},$numtitles);
                    799:                 unless ($instcodefilter eq '') {
                    800:                     $regexpok = -1;
                    801:                 }
1.80      raeburn   802:             }
1.78      raeburn   803:         } else {
                    804:             $instcodefilter = $filter->{'instcodefilter'};
                    805:         }
1.80      raeburn   806:         if ($instcodefilter eq '') { $instcodefilter = '.'; }
                    807:         if ($type eq '') { $type = '.'; }
1.85    ! raeburn   808:  
        !           809:         if (($clonerudom ne '') && ($cloneruname ne '')) {
        !           810:             $cloner = $cloneruname.':'.$clonerudom;  
        !           811:         }
1.54      raeburn   812:         %courses = 
                    813:             &Apache::lonnet::courseiddump($filter->{'domainfilter'},
                    814:                                           $filter->{'descriptfilter'},
                    815:                                           $timefilter,
1.78      raeburn   816:                                           $instcodefilter,
1.54      raeburn   817:                                           $filter->{'combownerfilter'},
                    818:                                           $filter->{'coursefilter'},
1.85    ! raeburn   819:                                           undef,undef,$type,$regexpok,undef,undef,
        !           820:                                           undef,undef,$cloner,$env{'form.cc_clone'},
        !           821:                                           $filter->{'cloneableonly'});
1.79      raeburn   822:         if (($filter->{'personfilter'} ne '') && ($filter->{'persondomfilter'} ne '')) {
                    823:             my %rolehash = &Apache::lonnet::get_my_roles($filter->{'personfilter'},
                    824:                                                          $filter->{'persondomfilter'},
                    825:                                                          'userroles',undef,
                    826:                                                          ['cc','in','ad','ep','ta','cr'],
                    827:                                                          $filter->{'domainfilter'});
                    828:             foreach my $role (keys(%rolehash)) {
                    829:                 my ($cnum,$cdom,$courserole) = split(':',$role);
                    830:                 my $cid = $cdom.'_'.$cnum;
                    831:                 if (exists($courses{$cid})) {
                    832:                     if (ref($courses{$cid}) eq 'HASH') {
                    833:                         if (ref($courses{$cid}{roles}) eq 'ARRAY') {
                    834:                             if (!grep(/^\Q$courserole\E$/,@{$courses{$cid}{roles}})) { 
                    835:                                 push (@{$courses{$cid}{roles}},$courserole);
                    836:                             }
                    837:                         } else {
                    838:                             $courses{$cid}{roles} = [$courserole];
                    839:                         }
                    840:                         $showcourses{$cid} = $courses{$cid};
                    841:                     }
                    842:                 }
                    843:             }
                    844:             %courses = %showcourses;
                    845:         }
1.54      raeburn   846:     } else {
                    847:         $r->print('<br />');
1.60      raeburn   848:         my %coursehash = &Apache::loncommon::findallcourses(); 
                    849:         foreach my $cid (sort(keys(%coursehash))) {
1.65      raeburn   850:             $courses{$cid}{'description'} = $env{'course.'.$cid.'.description'};
1.36      raeburn   851:         }
1.2       www       852:     }
1.54      raeburn   853:     return %courses;
1.18      raeburn   854: }
1.1       www       855: 
1.30      raeburn   856: sub course_chooser {
1.85    ! raeburn   857:     my ($multiple,$cdom,$cnum,$cleandesc,$canclone) = @_;
1.30      raeburn   858:     my $output; 
1.35      raeburn   859:     if ($multiple) {
1.32      albertel  860:         $output = '<label><input type="checkbox" name="course_id" value="'.$cdom.'_'.$cnum.'" />'."\n";
1.85    ! raeburn   861:     } elsif ((($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) && (!$canclone))  {
        !           862:         if ($env{'form.form'} eq 'ccrs') {
        !           863:             $output = &mt('No cloning for ').$env{'form.cloner'}."\n";
        !           864:         } else {
        !           865:             $output = &mt('No rights to clone')."\n";
        !           866:         }
1.30      raeburn   867:     } else {
1.71      bisitz    868:         $output = '<input type="button" value="'.&mt('Select').'" onClick="gochoose('.
1.30      raeburn   869:                   "'".$cnum."','".$cdom."','".$cleandesc."')".'" />'."\n";
                    870:     }
                    871:     return $output;
1.49      raeburn   872: }
                    873: 
1.55      raeburn   874: sub gochoose_javascript {
1.57      raeburn   875:     my ($type,$multiple,$autosubmit,$lastaction) = @_;
1.55      raeburn   876:     my %elements = (
                    877:                      'Course' => {
                    878:                                  name  => 'coursepick',
                    879:                                  total => 'coursetotal',
                    880:                                  list  => 'courselist',
                    881:                                  },
1.83      raeburn   882:                      'Community' => {
1.55      raeburn   883:                                  name  => 'grouppick',
                    884:                                  total => 'grouptotal',
                    885:                                  list  => 'grouplist',
                    886:                               },
                    887:                     );
1.57      raeburn   888:     my $output .= qq|
1.55      raeburn   889: <script type="text/javascript">
1.57      raeburn   890: function gochoose(cname,cdom,cdesc) {
1.55      raeburn   891:     var openerForm = "$env{'form.form'}";
                    892:     courseCount = 0;
                    893:     var courses = '';
1.57      raeburn   894: |;
                    895:     if ($multiple) {
                    896:         $output .= <<"ENDSCRIPT";
                    897:     courseCount = 0;
                    898:     var courses = '';
                    899:     if (typeof(document.courselist.course_id.length) == 'undefined') {
                    900:         // only 1 course checkbox was created
                    901:         if (document.courselist.course_id.checked) {
                    902:             courses = courses + document.courselist.course_id.value + "&&";
                    903:             courseCount ++;
                    904:         }
                    905:     } else {
                    906:         for (var j=0; j<document.courselist.course_id.length; j++) {
                    907:             if (document.courselist.course_id[j].checked) {
                    908:                 courses = courses + document.courselist.course_id[j].value + "&&";
1.55      raeburn   909:                 courseCount ++;
                    910:             }
1.57      raeburn   911:         }
                    912:     }
                    913:     opener.document.$env{'form.form'}.$elements{$type}{'total'}.value = courseCount;
                    914:     if (typeof(opener.document.$env{'form.form'}.$elements{$type}{'name'}.length) ==
                    915:         'undefined') {
                    916:         if (opener.document.$env{'form.form'}.$elements{$type}{'name'}.value == 'specific') {
                    917:             opener.document.$env{'form.form'}.$elements{$type}{'name'}.checked = true;
1.55      raeburn   918:         } else {
1.57      raeburn   919:             opener.document.$env{'form.form'}.$elements{$type}{'name'}.checked = false;
1.55      raeburn   920:         }
1.57      raeburn   921:     } else {
                    922:         for (var j=0; j<opener.document.$env{'form.form'}.$elements{$type}{'name'}.length; j++) {
                    923:             if (opener.document.$env{'form.form'}.$elements{$type}{'name'}\[j].value == 'specific') {
                    924:                 opener.document.$env{'form.form'}.$elements{$type}{'name'}\[j].checked = true;
1.55      raeburn   925:             } else {
1.57      raeburn   926:                 opener.document.$env{'form.form'}.$elements{$type}{'name'}\[j].checked = false;
1.54      raeburn   927:             }
1.55      raeburn   928:         }
1.57      raeburn   929:     }
                    930:     if (courseCount > 0) {
                    931:         courses = courses.substr(0,courses.length-2);
                    932:         opener.document.$env{'form.form'}.$elements{$type}{'list'}.value = courses;
                    933:     }
                    934: ENDSCRIPT
                    935:     } else {
                    936:         my $name_code;
                    937:         if ($env{'form.cnameelement'} ne '') {
                    938:             $name_code = 'opener.document.'.$env{'form.form'}.'.'.
                    939:                           $env{'form.cnameelement'}.'.value=cdesc;';
1.55      raeburn   940:         }
1.57      raeburn   941:         $output .= qq|
1.55      raeburn   942:         $name_code
                    943:         opener.document.$env{'form.form'}.$env{'form.cnumelement'}.value=cname;
                    944:         var slct=opener.document.$env{'form.form'}.$env{'form.cdomelement'};
                    945:         if (slct.options == undefined) {
                    946:             opener.document.$env{'form.form'}.$env{'form.cdomelement'}.value=cdom;
                    947:         }
                    948:         else {
                    949:             var i;
                    950:             for (i=0;i<slct.length;i++) {
                    951:                 if (slct.options[i].value==cdom) { slct.selectedIndex=i; }
1.54      raeburn   952:             }
                    953:         }
1.57      raeburn   954: |;
1.54      raeburn   955:     }
1.57      raeburn   956:     $output .= qq|
1.55      raeburn   957:     if (openerForm == 'portform') {
                    958:         document.courselist.cnum.value = cname;
                    959:         document.courselist.cdom.value = cdom;
                    960:     }
                    961:     $autosubmit
                    962:     $lastaction
1.54      raeburn   963: }
1.55      raeburn   964: </script>
1.57      raeburn   965: |;
1.55      raeburn   966:     return $output;
1.54      raeburn   967: }
                    968: 
1.55      raeburn   969: 1;
                    970: __END__
                    971: 
                    972: =pod
                    973: 
                    974: =head1 NAME
                    975: 
                    976: Apache::lonpickcourse - Search for course(s) based on user-specified criteria.   
                    977: 
                    978: =head1 SYNOPSIS
                    979: 
                    980: Invoked by other LON-CAPA modules, when course(s) need to be selected by the user. 
                    981: 
                    982: =head1 OVERVIEW
                    983: 
                    984: Two screens are typically displayed to the user.  The first is a set of criteria which are used to constrain the search for courses.
                    985: 
                    986: =head2 Search Criteria (Screen One)
                    987: 
                    988: =head3 Criteria:
                    989: 
                    990: =over 4
                    991: 
                    992: =item *
                    993: Course Activity - how recently was course last visited by anyone.
                    994: 
                    995: =item *
                    996: Course Domain - the domain of the course
                    997: 
                    998: =item *
1.84      raeburn   999: Type - Course or Community
1.55      raeburn  1000: 
                   1001: =item *
                   1002: Course Institutional Code - the institutional identifier assigned to the course
                   1003: 
                   1004: =item * 
                   1005: Course Owner's Username - the username of the owner of the course (assigned by the Domain Coordinator and/or when the course was created).
                   1006: 
                   1007: =item *
                   1008: Course Owner's Domain - the domain of the owner of the course
                   1009: 
                   1010: =item * 
1.76      bisitz   1011: Course Title - text which appears in the Course Title, as set in the Course Parameters.
1.55      raeburn  1012: 
                   1013: =item *
                   1014: 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).
                   1015: 
                   1016: =back
                   1017: 
                   1018: 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'}).
                   1019: 
                   1020: =head2 Course Display (Screen Two)
                   1021: 
                   1022: 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:
                   1023: 
                   1024: =over 4
                   1025: 
                   1026: =item *
                   1027: Course description
                   1028: 
                   1029: =item *
                   1030: Domain description of course domain
                   1031: 
                   1032: =item *
                   1033: Course institutional code
                   1034: 
                   1035: =item * 
                   1036: Course owner (username:domain)   
                   1037:  
                   1038: =back
                   1039: 
                   1040: 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.
                   1041: 
                   1042: 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.
                   1043: 
                   1044: =head1 SUBROUTINES
                   1045: 
                   1046: =over 4
                   1047: 
                   1048: =item *
                   1049: X<create_user_javascript()>
                   1050: B<create_user_javascript($type)>:
                   1051: 
1.83      raeburn  1052: Input: 1 - $type  - the course type - Course or Community
1.55      raeburn  1053: 
                   1054: Output: 1 - $output - javascript wrapped in E<lt>scriptE<gt>E<lt>/scriptE<gt> tags 
                   1055: 
                   1056: Side Effects: None 
                   1057: 
                   1058: javascript code for reporting selected sections (as a string of comma separated sections) and groups in the selected course (as a comma separated list) then calling setSect() javscript function in the opener window (to populate section select box) then closing current window.
                   1059: 
                   1060: 
                   1061: =item *
                   1062: X<display_matched_courses()>
1.85    ! raeburn  1063: B<display_matched_courses($r,$type,$multiple,$action,$showroles,$cloneruname,$clonerudom,%courses)>:
1.55      raeburn  1064: 
1.85    ! raeburn  1065: 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  1066: 
                   1067: Output: 0
                   1068: 
                   1069: 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.
                   1070: 
                   1071: =item *
                   1072: X<multiples_tag()>
                   1073: B<multiples_tag()>:
                   1074: 
                   1075: 
                   1076: Input: 0
                   1077: 
                   1078: Output: 2 - $jscript - javascript for check all/uncheck all checkboxes; $multelement - hidden form element with multiple set to 1.
                   1079: 
                   1080: Side Effects: None
                   1081: 
                   1082: =item *
                   1083: X<build_filters()>
1.85    ! raeburn  1084: B<build_filters($filterlist,$type,$roleelement,$multelement,$filter,$action,$numfiltersref,$caller,$cloneruname,$clonerudom)>:
1.55      raeburn  1085: 
                   1086: 
1.81      raeburn  1087: Input: 7 - 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).
1.55      raeburn  1088: 
                   1089: Output: 1 - $output - HTML for display of search criteria, and hidden form elements. 
                   1090: 
                   1091: Side Effects: None
                   1092: 
                   1093: =item *
                   1094: X<search_courses()>
1.85    ! raeburn  1095: B<search_courses($r,$type,$onlyown,$filter,$numtitles,$cloneruname,$clonerudom)>:
1.55      raeburn  1096: 
                   1097: 
1.85    ! raeburn  1098: 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  1099: 
                   1100: Output: 1 - %courses - hash of courses satisfying search criteria, keys = course IDs, values are corresponding colon-separated escaped description, institutional code, owner and type.
                   1101: 
                   1102: Side Effects: None
                   1103: 
                   1104: 
                   1105: =item *
                   1106: X<course_chooser()>
1.85    ! raeburn  1107: B<course_chooser($multiple,$cdom,$cnum,$cleandesc,$canclone)>:
1.55      raeburn  1108: 
1.85    ! raeburn  1109: Input: 5 - single (0) or multiple (1) courses; course domain, course number; course description; can clone course (1 if new course owner has cloning rights). 
1.55      raeburn  1110: 
1.85    ! raeburn  1111: Output: 1 - HTML for either checkbox (multiple=1) or select button (multiple=0) for user to indicate course selection.
1.55      raeburn  1112: 
                   1113: Side Effects: None
                   1114: 
                   1115: 
                   1116: =item *
                   1117: X<gochoose_javascript()>
1.57      raeburn  1118: B<gochoose_javascript($type,$multiple,$autosubmit,$lastaction)>:
1.55      raeburn  1119: 
1.66      raeburn  1120: 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  1121: 
                   1122: Output: 1  $output - javascript wrapped in E<lt>scriptE<gt>E<lt>/scriptE<gt> tags
                   1123: 
                   1124: Side Effects: None
                   1125: 
                   1126: javascript functions used when user selects a course(s). Different behavior depending on context:
                   1127: 
                   1128: =back
                   1129: 
                   1130: =over 8
                   1131: 
                   1132: =item
                   1133: 
                   1134: (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.
                   1135: 
                   1136: =item
                   1137: 
                   1138: (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.
                   1139: 
                   1140: =item
                   1141: 
                   1142: (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.
                   1143: 
                   1144: =item
1.54      raeburn  1145: 
1.55      raeburn  1146: (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  1147: 
1.55      raeburn  1148: =item
1.54      raeburn  1149: 
1.55      raeburn  1150: (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  1151: 
1.55      raeburn  1152: =item
1.54      raeburn  1153: 
1.55      raeburn  1154: (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  1155: 
1.55      raeburn  1156: =item
1.49      raeburn  1157: 
1.55      raeburn  1158: (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  1159: 
1.84      raeburn  1160: =item
                   1161: 
                   1162: (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.
                   1163: 
1.55      raeburn  1164: =back
                   1165:      
                   1166: =cut

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