Annotation of loncom/interface/lonpickcourse.pm, revision 1.89

1.1       www         1: # The LearningOnline Network
                      2: # Pick a course
                      3: #
1.89    ! raeburn     4: # $Id: lonpickcourse.pm,v 1.88 2009/10/31 14:27:48 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'})) {
1.89    ! raeburn   105:         $loaditem{'onload'} .= 'setRoles();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:         $process_pick .= <<"ENDTWO";
                    221:     if (pickedDomain == dom) {
                    222:         if (pickedCourse != '') {
1.88      raeburn   223:             var ccrole = "cc";
                    224:             var pickedType = "$env{'form.type'}";
                    225:             if (pickedType == "Community") {
                    226:                 ccrole = "co";
                    227:             }
                    228:             var courseTarget = ccrole+"./"+pickedDomain+"/"+pickedCourse
1.66      raeburn   229:             opener.document.title='Role selected. Please stand by.';
                    230:             opener.status='Role selected. Please stand by.';
                    231:             opener.document.rolechoice.newrole.value=courseTarget
                    232:             opener.document.rolechoice.submit();
                    233:         }
                    234:     } 
                    235:     else {
                    236:         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");
                    237:     }
                    238: ENDTWO
                    239:     } else {
                    240:         $process_pick .= <<"ENDTHREE";
                    241:     if (pickedDomain != dom) {
                    242:         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");
                    243:         return;
                    244:     }
                    245: ENDTHREE
                    246:     }
                    247:     $process_pick .= "
                    248: }
                    249: 
                    250: </script>
                    251: ";
                    252:     return $process_pick;
                    253: }
                    254: 
1.55      raeburn   255: sub create_user_javascript {
                    256:     my ($type) = @_;
                    257:     my $output;
                    258:     #javascript for reporting sections and groups then closing
                    259:     if ($env{'form.pickedcourse'}) {
1.87      raeburn   260:         my %coursedescription = 
                    261:             &Apache::lonnet::coursedescription($env{'form.pickedcourse'},
                    262:                                                {'one_time' => '1'});
                    263:         my $cdom = $coursedescription{'domain'};
                    264:         my $cnum = $coursedescription{'num'};
                    265:         my $crstype = $coursedescription{'type'};
1.55      raeburn   266:         my $sec_element = 'currsec';
                    267:         my $grplist_element = 'groups';
                    268:         my ($sections,$groups) =
                    269:           &Apache::loncommon::get_secgrprole_info($cdom,$cnum,'',$type);
                    270:         my $num_sections = scalar(@{$sections});
                    271:         my $seclist = join(',',@{$sections});
                    272:         my $num_groups = scalar(@{$groups});
                    273:         my $groupslist = join(',',@{$groups});
                    274:         $output = qq|
                    275: <script type="text/javascript">
                    276: function setSections() {
                    277:     opener.document.$env{"form.form"}.$grplist_element.value='$groupslist';
                    278:     window.opener.setSect('$seclist');
1.87      raeburn   279:     self.close();
                    280: }
                    281: function setRoles() {
                    282:     window.opener.setRole('$crstype');
1.55      raeburn   283: }
                    284: </script>
                    285: |;
                    286: ;
                    287:     }
                    288:     return $output;
                    289: }
                    290: 
1.54      raeburn   291: sub display_matched_courses {
1.85      raeburn   292:     my ($r,$type,$multiple,$action,$showroles,$cloneruname,$clonerudom,%courses) = @_;
1.55      raeburn   293:     if ($env{'form.form'} eq 'portform') {
                    294:         $action = '/adm/portfolio';
                    295:     }
1.68      raeburn   296:     my $numcourses = keys(%courses);
1.55      raeburn   297:     $r->print('<form name="courselist" method="post" action="'.$action.'">');
1.68      raeburn   298:     if ($env{'form.form'} eq 'modifycourse') {
                    299:         if ($numcourses > 0) {
1.89    ! raeburn   300:             my $ccrole = 'cc';
        !           301:             if ($type eq 'Community') {
        !           302:                 $ccrole = 'co';
        !           303:             }
        !           304:             my $cctitle = &Apache::lonnet::plaintext($ccrole,$type);
1.68      raeburn   305:             my $dctitle = &Apache::lonnet::plaintext('dc');
                    306:             my $ccrolechk = ' checked="checked" ';
                    307:             my $menuchk = ' ';
                    308:             if ($env{'form.prevphase'} ne '') {
                    309:                  $ccrolechk = ' ';
                    310:                  $menuchk = ' checked="checked" ';
                    311:             }
                    312:             $r->print(
1.75      bisitz    313:                 '<fieldset>'
                    314:                .'<legend>'.&mt('Action').'</legend>'
                    315:                .'<div class="LC_nobreak"><label>'
                    316:                .'<input type="radio" name="phase" value="ccrole"'.$ccrolechk.'/>'
1.89    ! raeburn   317:                .'&nbsp;');
        !           318:             if ($type eq 'Community') {
        !           319:                 $r->print(&mt('Enter the community with the role of [_1].',$cctitle));
        !           320:             } else {
        !           321:                 $r->print(&mt('Enter the course with the role of [_1].',$cctitle));
        !           322:             }
        !           323:             $r->print('</label></div>'
1.75      bisitz    324:                .'<div class="LC_nobreak"><label>'
1.89    ! raeburn   325:                .'<input type="radio" name="phase" value="menu"'.$menuchk.'/>&nbsp;');
        !           326:             if ($type eq 'Community') {
        !           327:                 $r->print(&mt('View or modify community settings which only a [_1] may modify.',$dctitle));
        !           328:             } else {
        !           329:                 $r->print(&mt('View or modify course settings which only a [_1] may modify.',$dctitle));
        !           330:             }
        !           331:             $r->print('</label></div>'
1.75      bisitz    332:                .'</fieldset>'
                    333:                .'<br />'
                    334:             );
1.68      raeburn   335:         }
                    336:     }
1.54      raeburn   337:     my %by_descrip;
                    338:     foreach my $course (keys(%courses)) {
                    339:         my $descr;
1.64      raeburn   340:         if (ref($courses{$course}) eq 'HASH') {
1.65      raeburn   341:             $descr = $courses{$course}{'description'};
1.64      raeburn   342:         } elsif ($courses{$course} =~ m/^([^:]*):/i) {
1.54      raeburn   343:             $descr = &unescape($1);
1.34      albertel  344:         } else {
1.54      raeburn   345:             $descr = &unescape($courses{$course});
                    346:         }
                    347:         my $description = $descr;
                    348:         push (@{$by_descrip{$description}}, $course);
                    349:     }
1.71      bisitz    350:  
1.54      raeburn   351:     if ($numcourses > 1 && $multiple) {
                    352:         $r->print('<input type="button" value="check all"
                    353:                   onclick="javascript:checkAll(document.courselist.course_id)" />
                    354:                   &nbsp;&nbsp;<input type="button" value="uncheck all"
                    355:                   onclick="javascript:uncheckAll(document.courselist.course_id)" />
                    356:                   <br /><br />');
                    357:     }
1.71      bisitz    358: 
                    359:     if (%courses) {
                    360:         $r->print(&Apache::loncommon::start_data_table());
                    361:         $r->print(&Apache::loncommon::start_data_table_header_row());
1.89    ! raeburn   362:         my $titlehdr = &mt('Course Title');
        !           363:         if ($type eq 'Community') {
        !           364:             $titlehdr = &mt('Community Title');
        !           365:         }
1.71      bisitz    366:         $r->print('<th>'.&mt('Select').'</th>'
1.89    ! raeburn   367:                  .'<th>'.$titlehdr.'</th>'
        !           368:                  .'<th>'.&mt('Domain').'</th>');
        !           369:         unless ($type eq 'Community') {
        !           370:             $r->print('<th>'.&mt('Course Code').'</th>');
        !           371:         }
        !           372:         $r->print('<th>'.&mt('Owner/Co-owner(s)').'</th>');
1.79      raeburn   373:         if ($showroles) {
                    374:             $r->print('<th>'.&mt("Role(s) for [_1]",
                    375:                 &Apache::loncommon::plainname($env{'form.personfilter'},
                    376:                                               $env{'form.persondomfilter'},'firstname')).'</th>');
                    377:         }
1.71      bisitz    378:         $r->print(&Apache::loncommon::end_data_table_header_row());
                    379:     }
1.54      raeburn   380:     foreach my $description (sort { lc($a) cmp lc($b) } (keys(%by_descrip))) {
                    381:         foreach my $course (@{$by_descrip{$description}}) {
1.72      raeburn   382:             $r->print(&Apache::loncommon::start_data_table_row());
1.54      raeburn   383:             my $cleandesc=&HTML::Entities::encode($description,'<>&"');
                    384:             $cleandesc=~s/'/\\'/g;
                    385:             my ($cdom,$cnum)=split(/\_/,$course);
1.85      raeburn   386:             my ($descr,$instcode,$ttype,$canclone,@owners);
1.64      raeburn   387:             if (ref($courses{$course}) eq 'HASH') {
                    388:                 $descr = $courses{$course}{'description'};
1.85      raeburn   389:                 $instcode = $courses{$course}{'inst_code'};
                    390:                 $ttype = $courses{$course}{'type'};
                    391:                 if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
                    392:                     my $cloners = $courses{$course}{'cloners'};
                    393:                     if ($cloners ne '') { 
                    394:                         my @cloneable = split(',',$cloners);
                    395:                         if (grep(/^\*$/,@cloneable)) {
                    396:                             $canclone = 1;
                    397:                         }
                    398:                         if (grep(/^\*:\Q$env{'form.clonerudom'}\E$/,@cloneable)) {
                    399:                             $canclone = 1;
                    400:                         }
                    401:                         if (grep(/^\Q$cloneruname\E:\Q$clonerudom\E$/,@cloneable)) {
                    402:                             $canclone = 1;
                    403:                         }
                    404:                     }
                    405:                 }
1.64      raeburn   406:                 push(@owners,&unescape($courses{$course}{'owner'}));
                    407:                 if (ref($courses{$course}{'co-owners'}) eq 'ARRAY') {
                    408:                     foreach my $item (@{$courses{$course}{'co-owners'}}) {
                    409:                         push(@owners,&unescape($item));
                    410:                     }
                    411:                 }
                    412:             } else {
                    413:                 my $singleowner; 
                    414:                 ($descr,$instcode,$singleowner,$ttype)=split(/:/,$courses{$course});
                    415:                 push(@owners,&unescape($singleowner));
                    416:             }
1.72      raeburn   417:             my $ownerstr = join(', ',@owners);
1.85      raeburn   418:             $r->print('<td>'.&course_chooser($multiple,$cdom,$cnum,$cleandesc,$canclone).'</td>');
1.71      bisitz    419:             $r->print('<td>'.$description.'</td>');
                    420:             $r->print('<td>');
                    421:             $r->print(&Apache::lonnet::domain($cdom,'description')?
                    422:                       $cdom.' ('.&Apache::lonnet::domain($cdom,'description').')':$cdom);
                    423:             $r->print('</td>');
1.89    ! raeburn   424:             unless ($type eq 'Community') { 
        !           425:                 $r->print('<td>');
        !           426:                 if ($instcode ne '') {
        !           427:                     $r->print(&unescape($instcode));
        !           428:                 } else {
        !           429:                     $r->print('&nbsp;');
        !           430:                 }
        !           431:                 $r->print('</td>');
1.54      raeburn   432:             }
1.72      raeburn   433:             $r->print('<td>'.$ownerstr.'</td>');
1.79      raeburn   434:             if ($showroles) {
                    435:                 $r->print('<td>');
                    436:                 my $rolestr;
                    437:                 if (ref($courses{$course}{'roles'}) eq 'ARRAY') {
                    438:                     my @roles = sort(@{$courses{$course}{'roles'}});
                    439:                     foreach my $role (@roles) {
                    440:                         if ($role =~ /^cr/) {
                    441:                             my (undef,$crdom,$crname,$crtitle) = split('/',$role);
                    442:                             $rolestr .= $crtitle.', ';
                    443:                         } else {
1.89    ! raeburn   444:                             $rolestr .= &Apache::lonnet::plaintext($role,$type).', ';
1.79      raeburn   445:                         }
                    446:                     }
                    447:                     $rolestr =~ s/\, $//;
                    448:                 }
                    449:                 $r->print($rolestr.'</td>');
                    450:             }
1.54      raeburn   451:             if ($multiple) { $r->print("</label>\n"); }
1.72      raeburn   452:             $r->print(&Apache::loncommon::end_data_table_row());
1.71      bisitz    453:             # $r->print("<br />\n");
1.19      raeburn   454:         }
                    455:     }
1.72      raeburn   456:     if (%courses) {
                    457:         $r->print(&Apache::loncommon::end_data_table());
                    458:     }
1.71      bisitz    459: 
1.54      raeburn   460:     if (!%courses) {
                    461:         $r->print(&mt('None found'));
                    462:     } elsif ($multiple) {
1.57      raeburn   463:         $r->print('<input type="button" value="Submit" onClick="gochoose('."'','','')".'" />');
1.54      raeburn   464:     }
                    465:     $r->print('<input type="hidden" name="form" value="'.$env{'form.form'}.'" />'.
                    466:               "\n".'<input type="hidden" name="pickedcourse" value="" />'."\n".
                    467:               '<input type="hidden" name="type" value="'.$type.'" />'."\n");
                    468:     if ((exists($env{'form.roleelement'})) && ($env{'form.form'} eq 'rolechoice')) {
                    469:         $r->print('<input type="hidden" name="roleelement" value="'.
                    470:                   $env{'form.roleelement'}.'" />'."\n");
                    471:     }
1.55      raeburn   472:     if ($env{'form.form'} eq 'portform') {
                    473:         $r->print('<input type="hidden" name="cnum" value="" />');
                    474:         $r->print('<input type="hidden" name="cdom" value="" />');
                    475:         $r->print('<input type="hidden" name="setroles" value="'.$env{'form.setroles'}.'" />');
                    476:         $r->print('<input type="hidden" name="action" value="rolepicker" />');
1.57      raeburn   477:     } elsif ($env{'form.form'} eq 'modifycourse') {
1.85      raeburn   478:         $r->print(&Apache::lonhtmlcommon::echo_form_input(['phase','pickedcourse','type','form','numtitles','state']));
1.57      raeburn   479:     } else {
                    480:         $r->print('<input type="hidden" name="cnumelement" value="'.
                    481:                   $env{'form.cnumelement'}.'" />'."\n".  
                    482:                   '<input type="hidden" name="cdomelement" value="'.
                    483:                   $env{'form.cdomelement'}.'" />'."\n");
1.55      raeburn   484:     }
1.78      raeburn   485:     if ((exists($env{'form.fixeddom'})) && ($env{'form.form'} eq 'rules')) {
                    486:         $r->print('<input type="hidden" name="fixeddom" value="'.
                    487:                   $env{'form.fixeddom'}.'" />');
                    488:     }
                    489:     if ($env{'form.numtitles'}) {
                    490:         $r->print('<input type="hidden" name="numtitles" value="'.
                    491:                   $env{'form.numtitles'}.'" />');
                    492:     }
1.54      raeburn   493:     $r->print("</form>\n");
                    494:     return;
                    495: }
                    496: 
                    497: sub multiples_tag {
1.55      raeburn   498:     my $jscript = &Apache::loncommon::check_uncheck_jscript();
                    499:     my $multelement = '<input type="hidden" name="multiple" value="1" />';
                    500:     return ($jscript,$multelement);
1.1       www       501: }
1.30      raeburn   502: 
1.54      raeburn   503: sub build_filters {
1.57      raeburn   504:     my ($filterlist,$type,$roleelement,$multelement,$filter,$action,
1.85      raeburn   505:         $numtitlesref,$caller,$cloneruname,$clonerudom) = @_;
                    506:     my ($list,$formname,$fixeddom,$codedom,$jscript);
                    507:     $codedom = $env{'request.role.domain'};
1.57      raeburn   508:     if (defined($env{'form.form'})) {
1.81      raeburn   509:         $formname = $env{'form.form'};
                    510:     } else {
                    511:         $formname = $caller;
1.57      raeburn   512:     }
1.84      raeburn   513:     my $onchange;
                    514:     unless ($env{'form.interface'} eq 'textual') {
1.85      raeburn   515:         $onchange = 'javascript:updateFilters(this)';
1.84      raeburn   516:     }
1.79      raeburn   517:     my ($domainselectform,$sincefilterform,$ownerdomselectform,$persondomselectform,
1.78      raeburn   518:         $instcodeform,$typeselectform,$instcodetitle);
1.55      raeburn   519:     foreach my $item (@{$filterlist}) {
1.54      raeburn   520:         $filter->{$item} = $env{'form.'.$item};
                    521:         if ($item ne 'descriptfilter' && $item ne 'instcodefilter') {
1.79      raeburn   522: 	    if ($item eq 'domainfilter') {
1.61      albertel  523: 		$filter->{$item} = &LONCAPA::clean_domain($filter->{$item});
                    524: 	    } elsif ($item eq 'coursefilter') {
                    525: 		$filter->{$item} = &LONCAPA::clean_courseid($filter->{$item});
                    526: 	    } elsif ($item eq 'ownerfilter') {
                    527: 		$filter->{$item} = &LONCAPA::clean_username($filter->{$item});
1.79      raeburn   528:                 $filter->{'ownerdomfilter'} = 
                    529:                     &LONCAPA::clean_domain($env{'form.ownerdomfilter'});
                    530:                 $ownerdomselectform =
                    531:                     &Apache::loncommon::select_dom_form($filter->{'ownerdomfilter'},
                    532:                                                         'ownerdomfilter',1);
                    533:             } elsif ($item eq 'personfilter') {
                    534:                 $filter->{$item} = &LONCAPA::clean_username($filter->{$item});
                    535:                 if ($env{'form.persondomfilter'} eq '') {
1.85      raeburn   536:                     unless ($env{'form.gosearch'}) {
1.79      raeburn   537:                         $filter->{'persondomfilter'} = $env{'request.role.domain'};
                    538:                     }
                    539:                 } else {
                    540:                     $filter->{'persondomfilter'} =
                    541:                         &LONCAPA::clean_domain($env{'form.persondomfilter'});
                    542:                 }
                    543:                 $persondomselectform =
                    544:                     &Apache::loncommon::select_dom_form($filter->{'persondomfilter'},
                    545:                                                         'persondomfilter',1);
1.61      albertel  546: 	    } else {
                    547: 		$filter->{$item} =~ s/\W//g;
                    548: 	    }
1.54      raeburn   549:             if (!$filter->{$item}) {
                    550:                 $filter->{$item} = '';
                    551:             }
                    552:         }
                    553:         if ($item eq 'domainfilter') {
1.63      albertel  554: 	    my $allow_blank = 1;
                    555: 	    if ($formname eq 'portform') {
                    556: 		$filter->{$item} ||= $env{'user.domain'};
                    557: 		$allow_blank=0;
1.67      raeburn   558: 	    } elsif ($formname eq 'studentform') {
                    559:                 $filter->{$item} ||= $env{'request.role.domain'};
                    560:                 $allow_blank=0;
                    561:             }
1.78      raeburn   562:             if ($env{'form.fixeddom'}) {
                    563:                 $domainselectform = '<input type="hidden" name="domainfilter"'.
                    564:                                     'value="'.$env{'request.role.domain'}.'" />'.
                    565:                                     &Apache::lonnet::domain($env{'request.role.domain'},
                    566:                                                             'description');
                    567:                 $codedom = $env{'request.role.domain'};
1.79      raeburn   568:             } else {
1.78      raeburn   569:                 $domainselectform =
                    570: 		    &Apache::loncommon::select_dom_form($filter->{$item},
                    571: 		    				        'domainfilter',
1.84      raeburn   572: 						        $allow_blank,'',$onchange);
1.78      raeburn   573:                 $codedom = $filter->{'domainfilter'};
                    574:             }
1.54      raeburn   575:         } else {
                    576:             $list->{$item} = &HTML::Entities::encode($filter->{$item},'<>&"');
                    577:         }
                    578:     }
                    579: 
                    580:     # last course activity filter and selection
                    581:     $filter->{'sincefilter'} = $env{'form.sincefilter'};
                    582:     $filter->{'sincefilter'} =~ s/[^\d-]//g;
                    583:     if (!$filter->{'sincefilter'}) { $filter->{'sincefilter'}=-1; }
                    584:     $sincefilterform=&Apache::loncommon::select_form($filter->{'sincefilter'},
                    585:        'sincefilter',('-1'=>'',
                    586:                       '86400' => 'today',
                    587:                       '604800' => 'last week',
                    588:                       '2592000' => 'last month',
                    589:                       '7776000' => 'last three months',
                    590:                       '15552000' => 'last six months',
                    591:                       '31104000' => 'last year',
                    592:                       'select_form_order' =>
                    593:                       ['-1','86400','604800','2592000','7776000',
                    594:                       '15552000','31104000']));
                    595: 
                    596:     my %lt = (
1.74      bisitz    597:               'cac' => &mt("$type Activity"),
1.76      bisitz    598:               'cde' => &mt("$type Title"),
1.74      bisitz    599:               'cdo' => &mt("$type Domain"),
1.78      raeburn   600:               'ins' => &mt('Institutional Code'),
                    601:               'inc' => &mt('Institutional Categorization'),
1.79      raeburn   602:               'cow' => &mt("$type Owner/Co-owner"),
                    603:               'cop' => &mt("$type Personnel Includes"),
1.84      raeburn   604:               'cog' => &mt('Type')
1.54      raeburn   605:              );
1.49      raeburn   606: 
1.89    ! raeburn   607:     if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
        !           608:         my $typeval = 'Course';
        !           609:         if ($type eq 'Community') {
        !           610:             $typeval = 'Community';
        !           611:         }
        !           612:         $typeselectform = '<input type="hidden" name="type" value="'.$typeval.'" />';
        !           613:     } else {
        !           614:         $typeselectform =  '<select name="type" size="1"';
        !           615:         if ($onchange) {
        !           616:             $typeselectform .= 'onchange="'.$onchange.'"';
        !           617:         }
        !           618:         $typeselectform .= '>'."\n";
        !           619:         foreach my $posstype ('Course','Community') {
        !           620:             $typeselectform.='<option value="'.$posstype.'"'.
        !           621:                 ($posstype eq $type ? ' selected="selected" ' : ''). ">".&mt($posstype)."</option>\n";
        !           622:         }
        !           623:         $typeselectform.="</select>";
1.84      raeburn   624:     }
1.85      raeburn   625:     
                    626:     my ($cloneableonlyform,$cloneabletitle);
                    627:     if (exists($filter->{'cloneableonly'})) {
                    628:         my $cloneableon = '';
                    629:         my $cloneableoff = ' checked="checked"';
                    630:         if ($filter->{'cloneableonly'}) {
                    631:             $cloneableon = $cloneableoff;
                    632:             $cloneableoff = '';
                    633:         }
1.86      raeburn   634:         $cloneableonlyform = '<span class="LC_nobreak"><label><input type="radio" name="cloneableonly" value="1" '.$cloneableon.'/>&nbsp;'.&mt('Required').'</label>'.('&nbsp;'x3).'<label><input type="radio" name="cloneableonly" value="" '.$cloneableoff.' />&nbsp;'.&mt('No restriction').'</label></span>';
1.85      raeburn   635:         if ($env{'form.form'} eq 'ccrs') {
                    636:             $cloneabletitle = &mt('Cloneable for').' '.$cloneruname.':'.$clonerudom;
                    637:         } else {
                    638:             $cloneabletitle = &mt('Cloneable by you');
                    639:         }
                    640:     }
1.80      raeburn   641:     my $officialjs;
1.54      raeburn   642:     if ($type eq 'Course') {
1.85      raeburn   643:         if (exists($filter->{'instcodefilter'})) {
                    644:             if (($env{'form.fixeddom'}) || ($formname eq 'requestcrs')
                    645:                 || ($formname eq 'modifycourse')) {
                    646:                 $officialjs = 1;
                    647:                 ($instcodeform,$jscript,$$numtitlesref) = 
                    648:                     &instcode_selectors($codedom,'filterpicker',$officialjs);
                    649:                 if ($jscript) {
                    650:                     $jscript = '<script type="text/javascript" language="Javascript">'.
                    651:                                $jscript.'</script>'."\n";
                    652:                 }
                    653:             }
                    654:             if ($instcodeform eq '') {
                    655:                 $instcodeform = 
                    656:                     '<input type="text" name="instcodefilter" size="10" value="'.
                    657:                     $list->{'instcodefilter'}.'" />';
                    658:                 $instcodetitle = $lt{'ins'};
                    659:             } else {
                    660:                 $instcodetitle = $lt{'inc'};
                    661:             }
                    662:             if ($env{'form.fixeddom'}) {
                    663:                 $instcodetitle .= '<br />('.$codedom.')';
                    664:             }
1.78      raeburn   665:         }
1.54      raeburn   666:     }
1.84      raeburn   667: 
1.57      raeburn   668:     my $output = qq|
1.85      raeburn   669: <form method="post" name="filterpicker" action="$action">
1.57      raeburn   670: <input type="hidden" name="form" value="$formname" />
                    671: |;
                    672:     if ($formname eq 'modifycourse') {
1.68      raeburn   673:         $output .= '<input type="hidden" name="phase" value="courselist" />'."\n".
                    674:                    '<input type="hidden" name="prevphase" value="'.
                    675:                    $env{'form.prevphase'}.'" />'."\n";
                    676:     } else {
1.57      raeburn   677:         my $name_input;
                    678:         if ($env{'form.cnameelement'} ne '') {
                    679:             $name_input = '<input type="hidden" name="cnameelement" value="'.
                    680:                           $env{'form.cnameelement'}.'" />';
                    681:         }
                    682:         $output .= qq|
1.27      albertel  683: <input type="hidden" name="cnumelement" value="$env{'form.cnumelement'}" />
                    684: <input type="hidden" name="cdomelement" value="$env{'form.cdomelement'}" />
1.13      albertel  685: $name_input
1.18      raeburn   686: $roleelement
1.35      raeburn   687: $multelement
1.57      raeburn   688: |;
1.59      raeburn   689:         if ($formname eq 'portform') {
1.78      raeburn   690:             $output .= '<input type="hidden" name="setroles" value="'.$env{'form.setroles'}.'" />'."\n";
1.59      raeburn   691:         }
1.57      raeburn   692:     }
1.78      raeburn   693:     if ($env{'form.fixeddom'}) { 
                    694:         $output .= '<input type="hidden" name="fixeddom" value="'.$env{'form.fixeddom'}.'" />'."\n";
                    695:     }
1.74      bisitz    696:     $output .= "<br />\n".&Apache::lonhtmlcommon::start_pick_box();
1.57      raeburn   697:     if ($sincefilterform) { 
1.74      bisitz    698:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cac'})
                    699:                   .$sincefilterform
                    700:                   .&Apache::lonhtmlcommon::row_closure();
1.57      raeburn   701:     }
                    702:     if ($domainselectform) {
1.74      bisitz    703:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cdo'})
                    704:                   .$domainselectform
                    705:                   .&Apache::lonhtmlcommon::row_closure();
1.78      raeburn   706:     } 
1.57      raeburn   707:     if ($typeselectform) {
1.89    ! raeburn   708:         if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
        !           709:             $output .= $typeselectform;
        !           710:         } else {
        !           711:             $output .= &Apache::lonhtmlcommon::row_title($lt{'cog'})
        !           712:                       .$typeselectform
        !           713:                       .&Apache::lonhtmlcommon::row_closure();
        !           714:         }
1.57      raeburn   715:     }
                    716:     if ($instcodeform) {
1.78      raeburn   717:         $output .= &Apache::lonhtmlcommon::row_title($instcodetitle)
1.74      bisitz    718:                   .$instcodeform
                    719:                   .&Apache::lonhtmlcommon::row_closure();
1.57      raeburn   720:     }
                    721:     if (exists($filter->{'ownerfilter'})) {
1.79      raeburn   722:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cow'}).
                    723:                    '<table><tr><td>'.&mt('Username').'<br />'.
                    724:                    '<input type="text" name="ownerfilter" size="20" value="'.
                    725:                    $list->{'ownerfilter'}.'" /></td><td>'.&mt('Domain').'<br />'.
                    726:                    $ownerdomselectform.'</td></tr></table>'.
                    727:                    &Apache::lonhtmlcommon::row_closure();
                    728:     }
                    729:     if (exists($filter->{'personfilter'})) {
                    730:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cop'}).
                    731:                    '<table><tr><td>'.&mt('Username').'<br />'.
                    732:                    '<input type="text" name="personfilter" size="20" value="'.
                    733:                    $list->{'personfilter'}.'" /></td><td>'.&mt('Domain').'<br />'.
                    734:                    $persondomselectform.'</td></tr></table>'.
                    735:                    &Apache::lonhtmlcommon::row_closure();
1.57      raeburn   736:     }
                    737:     if (exists($filter->{'coursefilter'})) {
1.74      bisitz    738:         $output .= &Apache::lonhtmlcommon::row_title(&mt('LON-CAPA course ID'))
                    739:                   .'<input type="text" name="coursefilter" size="25" value="'
                    740:                   .$list->{'coursefilter'}.'" />'
                    741:                   .&Apache::lonhtmlcommon::row_closure();
1.57      raeburn   742:     }
1.85      raeburn   743:     if ($cloneableonlyform) {
                    744:         $output .= &Apache::lonhtmlcommon::row_title($cloneabletitle).
                    745:                    $cloneableonlyform.&Apache::lonhtmlcommon::row_closure();
                    746:     }
1.57      raeburn   747:     if (exists($filter->{'descriptfilter'})) {
1.74      bisitz    748:         $output .= &Apache::lonhtmlcommon::row_title($lt{'cde'})
                    749:                   .'<input type="text" name="descriptfilter" size="40" value="'
                    750:                   .$list->{'descriptfilter'}.'" />'
                    751:                   .&Apache::lonhtmlcommon::row_closure(1);
1.57      raeburn   752:     }
1.85      raeburn   753:     $output .= &Apache::lonhtmlcommon::end_pick_box().'<p>';
                    754:     my $warning;
                    755:     if (($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) {
                    756:         my $cloneruhome=&Apache::lonnet::homeserver($cloneruname,$clonerudom);
                    757:         my $cc_clone;
                    758:         if ($cloneruhome eq 'no_host') {
                    759:             $warning = '<div class="LC_error">'.&mt('Intended course owner does not exist').
                    760:                        '</div>';
                    761:         } else {
1.89    ! raeburn   762:             my $ccrole;
        !           763:             if ($type eq 'Community') {
        !           764:                 $ccrole = 'co';
        !           765:             } elsif ($type eq 'Course') {
        !           766:                 $ccrole = 'cc';
        !           767:             }
1.85      raeburn   768:             if ($env{'form.form'} eq 'ccrs') {
                    769:                 $output .= '<input type="hidden" name="cloner" value="'.$env{'form.cloner'}.'" />'."\n";
                    770:             }
                    771:             my %ccroles = &Apache::lonnet::get_my_roles($cloneruname,$clonerudom,
1.89    ! raeburn   772:                                                         'userroles',['active'], [$ccrole]);
1.85      raeburn   773:             foreach my $key (sort(keys(%ccroles))) {
                    774:                 my ($cnum,$cdom,$role) = split(':',$key);
                    775:                 $cc_clone .= $cdom.':'.$cnum.'&';
                    776:             }
                    777:             $cc_clone =~ s/\&$//;
                    778:         }
                    779:         if ($cc_clone ne '') {
                    780:             $output .= '<input type="hidden" name="cc_clone" value="'.$cc_clone.'" />';
                    781:         }
                    782:     }
                    783:     $output .= '<input type="hidden" name="updater" value="">'."\n".
1.84      raeburn   784:                '<input type="submit" name="gosearch" value="'. 
1.70      raeburn   785:                &mt('Search').'" /></p>'."\n".'</form>'."\n".'<hr />'."\n";
1.85      raeburn   786:     return $jscript.$warning.$output;
1.78      raeburn   787: }
                    788: 
                    789: sub instcode_selectors {
1.80      raeburn   790:     my ($codedom,$formname,$officialjs) = @_;
1.78      raeburn   791:     my ($output,@codetitles,%cat_titles,%cat_order,%cat_items);
                    792:     my ($jscript,$totcodes,$numtitles,$lasttitle) =
                    793:         &Apache::courseclassifier::instcode_selectors_data($codedom,$formname,
1.80      raeburn   794:                            \%cat_items,\@codetitles,\%cat_titles,\%cat_order,$officialjs);
1.78      raeburn   795:     if ($numtitles > 0) {
1.84      raeburn   796:         my $official = ' checked="checked" ';
                    797:         my $unofficial = '';
                    798:         if ($env{'form.official'} eq 'off') {
                    799:             $unofficial = $official;
                    800:             $official = '';
1.80      raeburn   801:         }
                    802:         $output .= '<span class="LC_nobreak">'.&mt('Official course:').'&nbsp;<label>'.
1.84      raeburn   803:                    '<input type="radio" name="official" value="on"'.$official.' />'.
1.80      raeburn   804:                    &mt('Yes').'</label>'.('&nbsp;'x3).'<label>'.
1.84      raeburn   805:                    '<input type="radio" name="official" value="off"'.$unofficial.
1.80      raeburn   806:                    ' onclick="toggleOfficial();" />'.&mt('No').'</label></span><br />'.
                    807:                    &Apache::courseclassifier::build_instcode_selectors($numtitles,
                    808:                    $lasttitle,\%cat_items,\@codetitles,\%cat_titles,\%cat_order)."\n".
                    809:                    '<input type="hidden" name="numtitles" value="'.$numtitles.'" />'."\n".
                    810:                    '<input type="hidden" name="state" value="listing" />'."\n";
1.78      raeburn   811:  
                    812:     }
                    813:     return ($output,$jscript,$numtitles);
1.54      raeburn   814: }
                    815: 
                    816: sub search_courses {
1.85      raeburn   817:     my ($r,$type,$onlyown,$filter,$numtitles,$cloneruname,$clonerudom) = @_;
1.89    ! raeburn   818:     my (%courses,%showcourses,$cloner,$ccrole);
        !           819:     if ($type eq 'Community') {
        !           820:         $ccrole = 'co';
        !           821:     } else {
        !           822:         $ccrole = 'cc';
        !           823:     }
1.54      raeburn   824:     if (!$onlyown) {
1.71      bisitz    825:         $r->print(&mt('Searching ...').'<br />&nbsp;<br />');
1.6       www       826:         $r->rflush();
1.54      raeburn   827:         if (($filter->{'ownerfilter'} ne '') ||
                    828:             ($filter->{'ownerdomfilter'} ne '')) {
                    829:             $filter->{'combownerfilter'} = $filter->{'ownerfilter'}.':'.
                    830:                                            $filter->{'ownerdomfilter'};
                    831:         }
1.80      raeburn   832:         foreach my $item ('descriptfilter','coursefilter','combownerfilter') {
1.54      raeburn   833:             if (!$filter->{$item}) {
                    834:                 $filter->{$item}='.';
                    835:             }
1.52      raeburn   836:         }
1.54      raeburn   837:         my $timefilter = 
                    838:            ($filter->{'sincefilter'}==-1?1:time-$filter->{'sincefilter'});
1.78      raeburn   839:         my ($instcodefilter,$regexpok);
                    840:         if ($numtitles) {
1.84      raeburn   841:             if ($env{'form.official'} eq 'on') {
1.80      raeburn   842:                 $instcodefilter = 
1.84      raeburn   843:                     &Apache::courseclassifier::instcode_search_str($filter->{'domainfilter'},$numtitles);
1.80      raeburn   844:                 $regexpok = 1;
1.84      raeburn   845:             } elsif ($env{'form.official'} eq 'off') {
                    846:                 $instcodefilter = &Apache::courseclassifier::instcode_search_str($filter->{'domainfilter'},$numtitles);
                    847:                 unless ($instcodefilter eq '') {
                    848:                     $regexpok = -1;
                    849:                 }
1.80      raeburn   850:             }
1.78      raeburn   851:         } else {
                    852:             $instcodefilter = $filter->{'instcodefilter'};
                    853:         }
1.80      raeburn   854:         if ($instcodefilter eq '') { $instcodefilter = '.'; }
                    855:         if ($type eq '') { $type = '.'; }
1.85      raeburn   856:  
                    857:         if (($clonerudom ne '') && ($cloneruname ne '')) {
                    858:             $cloner = $cloneruname.':'.$clonerudom;  
                    859:         }
1.54      raeburn   860:         %courses = 
                    861:             &Apache::lonnet::courseiddump($filter->{'domainfilter'},
                    862:                                           $filter->{'descriptfilter'},
                    863:                                           $timefilter,
1.78      raeburn   864:                                           $instcodefilter,
1.54      raeburn   865:                                           $filter->{'combownerfilter'},
                    866:                                           $filter->{'coursefilter'},
1.85      raeburn   867:                                           undef,undef,$type,$regexpok,undef,undef,
                    868:                                           undef,undef,$cloner,$env{'form.cc_clone'},
                    869:                                           $filter->{'cloneableonly'});
1.79      raeburn   870:         if (($filter->{'personfilter'} ne '') && ($filter->{'persondomfilter'} ne '')) {
                    871:             my %rolehash = &Apache::lonnet::get_my_roles($filter->{'personfilter'},
                    872:                                                          $filter->{'persondomfilter'},
                    873:                                                          'userroles',undef,
1.89    ! raeburn   874:                                                          [$ccrole,'in','ad','ep','ta','cr'],
1.79      raeburn   875:                                                          $filter->{'domainfilter'});
                    876:             foreach my $role (keys(%rolehash)) {
                    877:                 my ($cnum,$cdom,$courserole) = split(':',$role);
                    878:                 my $cid = $cdom.'_'.$cnum;
                    879:                 if (exists($courses{$cid})) {
                    880:                     if (ref($courses{$cid}) eq 'HASH') {
                    881:                         if (ref($courses{$cid}{roles}) eq 'ARRAY') {
                    882:                             if (!grep(/^\Q$courserole\E$/,@{$courses{$cid}{roles}})) { 
                    883:                                 push (@{$courses{$cid}{roles}},$courserole);
                    884:                             }
                    885:                         } else {
                    886:                             $courses{$cid}{roles} = [$courserole];
                    887:                         }
                    888:                         $showcourses{$cid} = $courses{$cid};
                    889:                     }
                    890:                 }
                    891:             }
                    892:             %courses = %showcourses;
                    893:         }
1.54      raeburn   894:     } else {
                    895:         $r->print('<br />');
1.60      raeburn   896:         my %coursehash = &Apache::loncommon::findallcourses(); 
                    897:         foreach my $cid (sort(keys(%coursehash))) {
1.65      raeburn   898:             $courses{$cid}{'description'} = $env{'course.'.$cid.'.description'};
1.36      raeburn   899:         }
1.2       www       900:     }
1.54      raeburn   901:     return %courses;
1.18      raeburn   902: }
1.1       www       903: 
1.30      raeburn   904: sub course_chooser {
1.85      raeburn   905:     my ($multiple,$cdom,$cnum,$cleandesc,$canclone) = @_;
1.30      raeburn   906:     my $output; 
1.35      raeburn   907:     if ($multiple) {
1.32      albertel  908:         $output = '<label><input type="checkbox" name="course_id" value="'.$cdom.'_'.$cnum.'" />'."\n";
1.85      raeburn   909:     } elsif ((($env{'form.form'} eq 'ccrs') || ($env{'form.form'} eq 'requestcrs')) && (!$canclone))  {
                    910:         if ($env{'form.form'} eq 'ccrs') {
                    911:             $output = &mt('No cloning for ').$env{'form.cloner'}."\n";
                    912:         } else {
                    913:             $output = &mt('No rights to clone')."\n";
                    914:         }
1.30      raeburn   915:     } else {
1.71      bisitz    916:         $output = '<input type="button" value="'.&mt('Select').'" onClick="gochoose('.
1.30      raeburn   917:                   "'".$cnum."','".$cdom."','".$cleandesc."')".'" />'."\n";
                    918:     }
                    919:     return $output;
1.49      raeburn   920: }
                    921: 
1.55      raeburn   922: sub gochoose_javascript {
1.57      raeburn   923:     my ($type,$multiple,$autosubmit,$lastaction) = @_;
1.55      raeburn   924:     my %elements = (
                    925:                      'Course' => {
                    926:                                  name  => 'coursepick',
                    927:                                  total => 'coursetotal',
                    928:                                  list  => 'courselist',
                    929:                                  },
1.83      raeburn   930:                      'Community' => {
1.88      raeburn   931:                                  name  => 'coursepick',
                    932:                                  total => 'coursetotal',
                    933:                                  list  => 'courselist',
1.55      raeburn   934:                               },
                    935:                     );
1.57      raeburn   936:     my $output .= qq|
1.55      raeburn   937: <script type="text/javascript">
1.57      raeburn   938: function gochoose(cname,cdom,cdesc) {
1.55      raeburn   939:     var openerForm = "$env{'form.form'}";
                    940:     courseCount = 0;
                    941:     var courses = '';
1.57      raeburn   942: |;
                    943:     if ($multiple) {
                    944:         $output .= <<"ENDSCRIPT";
                    945:     courseCount = 0;
                    946:     var courses = '';
                    947:     if (typeof(document.courselist.course_id.length) == 'undefined') {
                    948:         // only 1 course checkbox was created
                    949:         if (document.courselist.course_id.checked) {
                    950:             courses = courses + document.courselist.course_id.value + "&&";
                    951:             courseCount ++;
                    952:         }
                    953:     } else {
                    954:         for (var j=0; j<document.courselist.course_id.length; j++) {
                    955:             if (document.courselist.course_id[j].checked) {
                    956:                 courses = courses + document.courselist.course_id[j].value + "&&";
1.55      raeburn   957:                 courseCount ++;
                    958:             }
1.57      raeburn   959:         }
                    960:     }
                    961:     opener.document.$env{'form.form'}.$elements{$type}{'total'}.value = courseCount;
                    962:     if (typeof(opener.document.$env{'form.form'}.$elements{$type}{'name'}.length) ==
                    963:         'undefined') {
                    964:         if (opener.document.$env{'form.form'}.$elements{$type}{'name'}.value == 'specific') {
                    965:             opener.document.$env{'form.form'}.$elements{$type}{'name'}.checked = true;
1.55      raeburn   966:         } else {
1.57      raeburn   967:             opener.document.$env{'form.form'}.$elements{$type}{'name'}.checked = false;
1.55      raeburn   968:         }
1.57      raeburn   969:     } else {
                    970:         for (var j=0; j<opener.document.$env{'form.form'}.$elements{$type}{'name'}.length; j++) {
                    971:             if (opener.document.$env{'form.form'}.$elements{$type}{'name'}\[j].value == 'specific') {
                    972:                 opener.document.$env{'form.form'}.$elements{$type}{'name'}\[j].checked = true;
1.55      raeburn   973:             } else {
1.57      raeburn   974:                 opener.document.$env{'form.form'}.$elements{$type}{'name'}\[j].checked = false;
1.54      raeburn   975:             }
1.55      raeburn   976:         }
1.57      raeburn   977:     }
                    978:     if (courseCount > 0) {
                    979:         courses = courses.substr(0,courses.length-2);
                    980:         opener.document.$env{'form.form'}.$elements{$type}{'list'}.value = courses;
                    981:     }
                    982: ENDSCRIPT
                    983:     } else {
                    984:         my $name_code;
                    985:         if ($env{'form.cnameelement'} ne '') {
                    986:             $name_code = 'opener.document.'.$env{'form.form'}.'.'.
                    987:                           $env{'form.cnameelement'}.'.value=cdesc;';
1.55      raeburn   988:         }
1.57      raeburn   989:         $output .= qq|
1.55      raeburn   990:         $name_code
                    991:         opener.document.$env{'form.form'}.$env{'form.cnumelement'}.value=cname;
                    992:         var slct=opener.document.$env{'form.form'}.$env{'form.cdomelement'};
                    993:         if (slct.options == undefined) {
                    994:             opener.document.$env{'form.form'}.$env{'form.cdomelement'}.value=cdom;
                    995:         }
                    996:         else {
                    997:             var i;
                    998:             for (i=0;i<slct.length;i++) {
                    999:                 if (slct.options[i].value==cdom) { slct.selectedIndex=i; }
1.54      raeburn  1000:             }
                   1001:         }
1.57      raeburn  1002: |;
1.54      raeburn  1003:     }
1.57      raeburn  1004:     $output .= qq|
1.55      raeburn  1005:     if (openerForm == 'portform') {
                   1006:         document.courselist.cnum.value = cname;
                   1007:         document.courselist.cdom.value = cdom;
                   1008:     }
                   1009:     $autosubmit
                   1010:     $lastaction
1.54      raeburn  1011: }
1.55      raeburn  1012: </script>
1.57      raeburn  1013: |;
1.55      raeburn  1014:     return $output;
1.54      raeburn  1015: }
                   1016: 
1.55      raeburn  1017: 1;
                   1018: __END__
                   1019: 
                   1020: =pod
                   1021: 
                   1022: =head1 NAME
                   1023: 
                   1024: Apache::lonpickcourse - Search for course(s) based on user-specified criteria.   
                   1025: 
                   1026: =head1 SYNOPSIS
                   1027: 
                   1028: Invoked by other LON-CAPA modules, when course(s) need to be selected by the user. 
                   1029: 
                   1030: =head1 OVERVIEW
                   1031: 
                   1032: Two screens are typically displayed to the user.  The first is a set of criteria which are used to constrain the search for courses.
                   1033: 
                   1034: =head2 Search Criteria (Screen One)
                   1035: 
                   1036: =head3 Criteria:
                   1037: 
                   1038: =over 4
                   1039: 
                   1040: =item *
                   1041: Course Activity - how recently was course last visited by anyone.
                   1042: 
                   1043: =item *
                   1044: Course Domain - the domain of the course
                   1045: 
                   1046: =item *
1.84      raeburn  1047: Type - Course or Community
1.55      raeburn  1048: 
                   1049: =item *
                   1050: Course Institutional Code - the institutional identifier assigned to the course
                   1051: 
                   1052: =item * 
                   1053: Course Owner's Username - the username of the owner of the course (assigned by the Domain Coordinator and/or when the course was created).
                   1054: 
                   1055: =item *
                   1056: Course Owner's Domain - the domain of the owner of the course
                   1057: 
                   1058: =item * 
1.76      bisitz   1059: Course Title - text which appears in the Course Title, as set in the Course Parameters.
1.55      raeburn  1060: 
                   1061: =item *
                   1062: 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).
                   1063: 
                   1064: =back
                   1065: 
                   1066: 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'}).
                   1067: 
                   1068: =head2 Course Display (Screen Two)
                   1069: 
                   1070: 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:
                   1071: 
                   1072: =over 4
                   1073: 
                   1074: =item *
                   1075: Course description
                   1076: 
                   1077: =item *
                   1078: Domain description of course domain
                   1079: 
                   1080: =item *
                   1081: Course institutional code
                   1082: 
                   1083: =item * 
                   1084: Course owner (username:domain)   
                   1085:  
                   1086: =back
                   1087: 
                   1088: 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.
                   1089: 
                   1090: 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.
                   1091: 
                   1092: =head1 SUBROUTINES
                   1093: 
                   1094: =over 4
                   1095: 
                   1096: =item *
                   1097: X<create_user_javascript()>
                   1098: B<create_user_javascript($type)>:
                   1099: 
1.83      raeburn  1100: Input: 1 - $type  - the course type - Course or Community
1.55      raeburn  1101: 
                   1102: Output: 1 - $output - javascript wrapped in E<lt>scriptE<gt>E<lt>/scriptE<gt> tags 
                   1103: 
                   1104: Side Effects: None 
                   1105: 
                   1106: javascript code for reporting selected sections (as a string of comma separated sections) and groups in the selected course (as a comma separated list) then calling setSect() javscript function in the opener window (to populate section select box) then closing current window.
                   1107: 
                   1108: 
                   1109: =item *
                   1110: X<display_matched_courses()>
1.85      raeburn  1111: B<display_matched_courses($r,$type,$multiple,$action,$showroles,$cloneruname,$clonerudom,%courses)>:
1.55      raeburn  1112: 
1.85      raeburn  1113: 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  1114: 
                   1115: Output: 0
                   1116: 
                   1117: 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.
                   1118: 
                   1119: =item *
                   1120: X<multiples_tag()>
                   1121: B<multiples_tag()>:
                   1122: 
                   1123: 
                   1124: Input: 0
                   1125: 
                   1126: Output: 2 - $jscript - javascript for check all/uncheck all checkboxes; $multelement - hidden form element with multiple set to 1.
                   1127: 
                   1128: Side Effects: None
                   1129: 
                   1130: =item *
                   1131: X<build_filters()>
1.85      raeburn  1132: B<build_filters($filterlist,$type,$roleelement,$multelement,$filter,$action,$numfiltersref,$caller,$cloneruname,$clonerudom)>:
1.55      raeburn  1133: 
                   1134: 
1.81      raeburn  1135: 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  1136: 
                   1137: Output: 1 - $output - HTML for display of search criteria, and hidden form elements. 
                   1138: 
                   1139: Side Effects: None
                   1140: 
                   1141: =item *
                   1142: X<search_courses()>
1.85      raeburn  1143: B<search_courses($r,$type,$onlyown,$filter,$numtitles,$cloneruname,$clonerudom)>:
1.55      raeburn  1144: 
                   1145: 
1.85      raeburn  1146: 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  1147: 
                   1148: Output: 1 - %courses - hash of courses satisfying search criteria, keys = course IDs, values are corresponding colon-separated escaped description, institutional code, owner and type.
                   1149: 
                   1150: Side Effects: None
                   1151: 
                   1152: 
                   1153: =item *
                   1154: X<course_chooser()>
1.85      raeburn  1155: B<course_chooser($multiple,$cdom,$cnum,$cleandesc,$canclone)>:
1.55      raeburn  1156: 
1.85      raeburn  1157: Input: 5 - single (0) or multiple (1) courses; course domain, course number; course description; can clone course (1 if new course owner has cloning rights). 
1.55      raeburn  1158: 
1.85      raeburn  1159: Output: 1 - HTML for either checkbox (multiple=1) or select button (multiple=0) for user to indicate course selection.
1.55      raeburn  1160: 
                   1161: Side Effects: None
                   1162: 
                   1163: 
                   1164: =item *
                   1165: X<gochoose_javascript()>
1.57      raeburn  1166: B<gochoose_javascript($type,$multiple,$autosubmit,$lastaction)>:
1.55      raeburn  1167: 
1.66      raeburn  1168: 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  1169: 
                   1170: Output: 1  $output - javascript wrapped in E<lt>scriptE<gt>E<lt>/scriptE<gt> tags
                   1171: 
                   1172: Side Effects: None
                   1173: 
                   1174: javascript functions used when user selects a course(s). Different behavior depending on context:
                   1175: 
                   1176: =back
                   1177: 
                   1178: =over 8
                   1179: 
                   1180: =item
                   1181: 
                   1182: (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.
                   1183: 
                   1184: =item
                   1185: 
                   1186: (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.
                   1187: 
                   1188: =item
                   1189: 
                   1190: (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.
                   1191: 
                   1192: =item
1.54      raeburn  1193: 
1.55      raeburn  1194: (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  1195: 
1.55      raeburn  1196: =item
1.54      raeburn  1197: 
1.55      raeburn  1198: (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  1199: 
1.55      raeburn  1200: =item
1.54      raeburn  1201: 
1.55      raeburn  1202: (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  1203: 
1.55      raeburn  1204: =item
1.49      raeburn  1205: 
1.55      raeburn  1206: (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  1207: 
1.84      raeburn  1208: =item
                   1209: 
                   1210: (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.
                   1211: 
1.55      raeburn  1212: =back
                   1213:      
                   1214: =cut

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