1: # The LearningOnline Network with CAPA
2: # Handler for displaying the course catalog interface
3: #
4: # $Id: coursecatalog.pm,v 1.69 2011/11/21 15:42:59 raeburn Exp $
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::coursecatalog;
30:
31: use strict;
32: use lib qw(/home/httpd/lib/perl);
33: use Apache::Constants qw(:common);
34: use Apache::loncommon;
35: use Apache::lonhtmlcommon;
36: use Apache::lonnet;
37: use Apache::lonlocal;
38: use Apache::courseclassifier;
39: use Apache::lonacc;
40: use LONCAPA;
41:
42: sub handler {
43: my ($r) = @_;
44: &Apache::loncommon::content_type($r,'text/html');
45: $r->send_http_header;
46: if ($r->header_only) {
47: return OK;
48: }
49: my $handle = &Apache::lonnet::check_for_valid_session($r);
50: my $lonidsdir=$r->dir_config('lonIDsDir');
51: if ($handle ne '') {
52: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
53: }
54: &Apache::lonacc::get_posted_cgi($r);
55: &Apache::lonlocal::get_language_handle($r);
56: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
57: ['sortby','showdom']);
58:
59: my $codedom = &Apache::lonnet::default_login_domain();
60:
61: if (($env{'user.domain'} ne '') && ($env{'user.domain'} ne 'public')) {
62: $codedom = $env{'user.domain'};
63: if ($env{'request.role.domain'} ne '') {
64: $codedom = $env{'request.role.domain'};
65: }
66: }
67: my $formname = 'coursecatalog';
68: if ($env{'form.showdom'} ne '') {
69: if (&Apache::lonnet::domain($env{'form.showdom'}) ne '') {
70: $codedom = $env{'form.showdom'};
71: }
72: }
73: my $domdesc = &Apache::lonnet::domain($codedom,'description');
74: &Apache::lonhtmlcommon::clear_breadcrumbs();
75:
76: my %domconfig =
77: &Apache::lonnet::get_dom('configuration',['coursecategories'],$codedom);
78: my (@cats,@trails,%allitems,%idx,@jsarray,%subcathash,$cathash);
79: if (ref($domconfig{'coursecategories'}) eq 'HASH') {
80: $cathash = $domconfig{'coursecategories'}{'cats'};
81: } else {
82: $cathash = {};
83: }
84: my $subcats;
85: if ($env{'form.withsubcats'}) {
86: $subcats = \%subcathash;
87: }
88: &Apache::loncommon::extract_categories($cathash,\@cats,\@trails,\%allitems,
89: \%idx,\@jsarray,$subcats);
90: my ($numtitles,@codetitles);
91: if ($env{'form.coursenum'} ne '' && &user_is_known()) {
92: &course_details($r,$codedom,$formname,$domdesc,\@trails,\%allitems,\@codetitles);
93: } else {
94: my ($catlinks,$has_subcats,$selitem) = &category_breadcrumbs($codedom,@cats);
95: my $catjs = <<"ENDSCRIPT";
96:
97: function setCatDepth(depth) {
98: document.coursecats.catalog_maxdepth.value = depth;
99: if (depth == '') {
100: document.coursecats.currcat_0.value = '';
101: }
102: document.coursecats.submit();
103: return;
104: }
105:
106: function changeSort(caller) {
107: document.$formname.sortby.value = caller;
108: document.$formname.submit();
109: }
110:
111: function setCourseId(caller) {
112: document.$formname.coursenum.value = caller;
113: document.$formname.submit();
114: }
115:
116: ENDSCRIPT
117: $catjs .= &courselink_javascript();
118: if ($env{'form.currcat_0'} eq 'instcode::0') {
119: $numtitles = &instcode_course_selector($r,$codedom,$formname,$domdesc,
120: $catlinks,$catjs,\@codetitles);
121: if ($env{'form.state'} eq 'listing') {
122: $r->print(&print_course_listing($codedom,$numtitles,undef,undef,undef,
123: \@codetitles));
124: }
125: } else {
126: my (%add_entries);
127: my ($currdepth,$deeper) = &get_depth_values();
128: if ($selitem) {
129: my $alert = &mt('Choose a subcategory to display');
130: if (!$deeper) {
131: $alert = &mt('Choose a category to display');
132: }
133: $catjs .= <<ENDJS;
134: function check_selected() {
135: if (document.coursecats.$selitem.options[document.coursecats.$selitem.selectedIndex].value == "") {
136: alert('$alert');
137: return false;
138: }
139: }
140: ENDJS
141: }
142: $catjs = '<script type="text/javascript">'."\n".$catjs."\n".'</script>';
143: &cat_header($r,$codedom,$catjs,\%add_entries,$catlinks);
144: if ($env{'form.currcat_0'} ne '') {
145: $r->print('<form name="'.$formname.
146: '" method="post" action="/adm/coursecatalog">'.
147: &additional_filters($codedom,$has_subcats)."\n");
148: $r->print('<input type="hidden" name="catalog_maxdepth" value="'.
149: $deeper.'" />'."\n");
150: for (my $i=0; $i<$deeper; $i++) {
151: $r->print('<input type="hidden" name="currcat_'.$i.'" value="'.$env{'form.currcat_'.$i}.'" />'."\n");
152: }
153: my $display_button;
154: if ($env{'form.currcat_0'} eq 'communities::0') {
155: $display_button = &mt('Display communities');
156: } else {
157: $display_button = &mt('Display courses');
158: }
159: $r->print('<input type="hidden" name="coursenum" value="" />'."\n".
160: '<input type="hidden" name="sortby" value="" />'."\n".
161: '<input type="hidden" name="state" value="listing" />'."\n".
162: '<input type="hidden" name="showdom" value="'.
163: $env{'form.showdom'}.'" />'.
164: '<input type="submit" name="catalogfilter" value="'.
165: $display_button.'" /></form><br /><br />');
166: }
167: if ($env{'form.state'} eq 'listing') {
168: $r->print(&print_course_listing($codedom,undef,\@trails,\%allitems,$subcats,\@codetitles));
169: }
170: }
171: }
172: $r->print('<br />'.&Apache::loncommon::end_page());
173: return OK;
174: }
175:
176: sub course_details {
177: my ($r,$codedom,$formname,$domdesc,$trails,$allitems,$codetitles) = @_;
178: my $output;
179: my %add_entries = (topmargin => "0",
180: marginheight => "0",);
181: my $js = '<script type="text/javascript">'."\n".
182: &courselink_javascript().'</script>'."\n";
183: my $start_page =
184: &Apache::loncommon::start_page('Course/Community Catalog',$js,
185: {'add_entries' => \%add_entries, });
186: $r->print($start_page);
187: if ($env{'form.numtitles'} > 0) {
188: &Apache::lonhtmlcommon::add_breadcrumb
189: ({href=>"/adm/coursecatalog",
190: text=>"Course/Community Catalog"});
191: }
192: my $brtextone = 'Course listing';
193: my $brtexttwo = 'Course details';
194: if ($env{'form.currcat_0'} eq 'communities::0') {
195: $brtextone = 'Community listing';
196: $brtexttwo = 'Community details';
197: }
198: &Apache::lonhtmlcommon::add_breadcrumb
199: ({href=>"javascript:document.$formname.submit()",
200: text=>$brtextone},
201: {text=>$brtexttwo});
202: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog'));
203: $r->print('<br />');
204: if ($env{'form.currcat_0'} eq 'communities::0') {
205: $r->print(&mt('Detailed community information:'));
206: } else {
207: $r->print(&mt('Detailed course information:'));
208: }
209: $r->print('<br /><br />'.
210: &print_course_listing($codedom,undef,$trails,$allitems,undef,$codetitles).
211: '<br /><br />');
212: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
213: '<a href = "javascript:document.coursecatalog.submit()">');
214: if ($env{'form.currcat_0'} eq 'communities::0') {
215: $r->print(&mt('Back to community listing'));
216: } else {
217: $r->print(&mt('Back to course listing'));
218: }
219: $r->print('</a>'.
220: &Apache::lonhtmlcommon::echo_form_input(['coursenum','catalogfilter',
221: 'showdetails','courseid']).'</form>');
222: return;
223: }
224:
225: sub courselink_javascript {
226: return <<"END";
227:
228: function ToSyllabus(cdom,cnum) {
229: if (cdom == '' || cdom == null) {
230: return;
231: }
232: if (cnum == '' || cnum == null) {
233: return;
234: }
235: document.linklaunch.action = "/public/"+cdom+"/"+cnum+"/syllabus";
236: document.linklaunch.submit();
237: }
238:
239: function ToSelfenroll(courseid) {
240: if (courseid == '') {
241: return;
242: }
243: document.linklaunch.action = "/adm/selfenroll";
244: document.linklaunch.courseid.value = courseid;
245: document.linklaunch.submit();
246: }
247:
248: END
249: }
250:
251: sub instcode_course_selector {
252: my ($r,$codedom,$formname,$domdesc,$catlinks,$catjs,$codetitles) = @_;
253: my %coursecodes = ();
254: my %codes = ();
255: my %cat_titles = ();
256: my %cat_order = ();
257: my %cat_items;
258: my $caller = 'global';
259: my $format_reply;
260: my %add_entries = (topmargin => "0",
261: marginheight => "0",);
262: my ($jscript,$totcodes,$numtitles,$lasttitle) =
263: &Apache::courseclassifier::instcode_selectors_data($codedom,$formname,
264: \%cat_items,$codetitles,\%cat_titles,\%cat_order);
265: my $js = '<script type"text/javascript">'."\n$jscript\n$catjs\n".
266: '</script>';
267: if ($totcodes) {
268: if (($env{'form.state'} eq 'listing') && ($numtitles > 0)) {
269: $add_entries{'onLoad'} = 'setElements()';
270: }
271: &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles);
272: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
273: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
274: '<input type="hidden" name="catalog_maxdepth" value="'.$cat_maxdepth.'" />'."\n".
275: '<input type="hidden" name="showdom" value="'.$env{'form.showdom'}.'" />'."\n".
276: '<input type="hidden" name="currcat_0" value="instcode::0" />'.
277: &additional_filters($codedom));
278: if ($numtitles > 0) {
279: $r->print('<b>'.&mt('Choose which course(s) to list.').'</b><br />'.
280: &Apache::courseclassifier::build_instcode_selectors($numtitles,
281: $lasttitle,\%cat_items,$codetitles,\%cat_titles,\%cat_order));
282: }
283: $r->print('<input type="hidden" name="coursenum" value="" />'."\n".
284: '<input type="hidden" name="sortby" value="" />'."\n".
285: '<input type="hidden" name="state" value="listing" />'."\n".
286: '<input type="submit" name="catalogfilter" value="'.
287: &mt('Display courses').'" />'.
288: '<input type="hidden" name="numtitles" value="'.$numtitles.
289: '" /></form><br /><br />');
290: } else {
291: $js = '<script type"text/javascript">'."\n$catjs\n".'</script>';
292: &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles);
293: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
294: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
295: '<input type="hidden" name="catalog_maxdepth" value="'.$cat_maxdepth.'" />'.
296: '<input type="hidden" name="showdom" value="'.$env{'form.showdom'}.'" />'.
297: '<input type="hidden" name="currcat_0" value="instcode::0" />');
298: $r->print('<br />'.&mt('No official courses to display for [_1].',$domdesc).'</form>');
299: }
300: return $numtitles;
301: }
302:
303: sub cat_header {
304: my ($r,$codedom,$js,$add_entries,$catlinks,$numtitles) = @_;
305: my $start_page =
306: &Apache::loncommon::start_page('Other',$js,
307: { 'add_entries' => $add_entries, });
308: $r->print($start_page);
309: my $brtext = 'Course listing';
310: if ($env{'form.currcat_0'} eq 'communities::0') {
311: $brtext = 'Community listing';
312: }
313: if ($env{'form.state'} eq 'listing') {
314: if ($numtitles > 0) {
315: &Apache::lonhtmlcommon::add_breadcrumb
316: ({href=>"/adm/coursecatalog",
317: text=>"Course/Community Catalog"},
318: {text=>$brtext});
319: } else {
320: &Apache::lonhtmlcommon::add_breadcrumb
321: ({text=>$brtext});
322: }
323: } else {
324: &Apache::lonhtmlcommon::add_breadcrumb
325: ({href=>"/adm/coursecatalog",
326: text=>"Course/Community Catalog"});
327: }
328: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog'));
329: my $onchange = 'this.form.submit()';
330: $r->print('<form name="coursecatdom" method="post" action="/adm/coursecatalog">'.
331: '<table border="0"><tr><td><b>'.&mt('Domain:').'</b></td><td>'.
332: &Apache::loncommon::select_dom_form($codedom,'showdom','',1,$onchange));
333: if (!$onchange) {
334: $r->print(' <input type="submit" name="godom" value="'.&mt('Change').'" />');
335: }
336: $r->print('</td></tr></table></form>'.
337: '<form name="coursecats" method="post" action="/adm/coursecatalog"'.
338: ' onsubmit="return check_selected();">'.
339: '<table border="0"><tr>'.$catlinks.'</tr></table></form>');
340: return;
341: }
342:
343: sub category_breadcrumbs {
344: my ($dom,@cats) = @_;
345: my $crumbsymbol = ' ▶ ';
346: my ($currdepth,$deeper) = &get_depth_values();
347: my $currcat_str =
348: '<input type="hidden" name="catalog_maxdepth" value="'.$deeper.'" />'.
349: '<input type="hidden" name="showdom" value="'.$dom.'" />';
350: my $catlinks = '<td valign="top"><b>'.&mt('Catalog:').'</b></td><td><table><tr><td>';
351: my $has_subcats;
352: my $selitem;
353: if (ref($cats[0]) eq 'ARRAY') {
354: if (@{$cats[0]} == 0) {
355: $catlinks .= &mt('No categories defined in this domain');
356: } elsif (@{$cats[0]} == 1) {
357: if ($cats[0][0] eq 'instcode') {
358: $catlinks .= &mt('Official courses (with institutional codes)');
359: $env{'form.currcat_0'} = 'instcode::0';
360: } elsif ($cats[0][0] eq 'communities') {
361: $catlinks .= &mt('Communities');
362: $env{'form.currcat_0'} = 'communities::0';
363: } else {
364: my $name = $cats[0][0];
365: my $item = &escape($name).'::0';
366: $catlinks .= $name;
367: $env{'form.currcat_0'} = $item;
368: }
369: $currcat_str .= '<input type="hidden" name="currcat_0" value="'.$env{'form.currcat_0'}.'" />';
370: } else {
371: $catlinks .= &main_category_selector(@cats);
372: if (($env{'form.currcat_0'} ne '') &&
373: ($env{'form.currcat_0'} ne 'instcode::0')) {
374: $catlinks .= $crumbsymbol;
375: } else {
376: $catlinks .= '</td>';
377: }
378: }
379: } else {
380: $catlinks .= &mt('Official courses (with institutional codes)');
381: $env{'form.currcat_0'} = 'instcode::0';
382: $currcat_str .= '<input type="hidden" name="currcat_0" value="'.$env{'form.currcat_0'}.'" />';
383: }
384: if ($deeper) {
385: for (my $i=1; $i<=$deeper; $i++) {
386: my $shallower = $i-1;
387: next if ($shallower == 0);
388: my ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$shallower});
389: if ($cat ne '') {
390: $catlinks .= '<td valign="top">'.
391: '<select name="currcat_'.$shallower.'" onchange="'.
392: 'setCatDepth('."'$shallower'".');this.form.submit();">';
393: if (ref($cats[$shallower]{$container}) eq 'ARRAY') {
394: $catlinks .= '<option value="">'.&mt('De-select').'</option>';
395: for (my $j=0; $j<@{$cats[$shallower]{$container}}; $j++) {
396: my $name = $cats[$shallower]{$container}[$j];
397: my $item = &escape($name).':'.&escape($container).':'.$shallower;
398: my $selected = '';
399: if ($item eq $env{'form.currcat_'.$shallower}) {
400: $selected = ' selected="selected"';
401: }
402: $catlinks .=
403: '<option value="'.$item.'"'.$selected.'>'.$name.'</option>';
404: }
405: }
406: $catlinks .= '</select>';
407: }
408: unless ($i == $deeper) {
409: $catlinks .= $crumbsymbol;
410: }
411: }
412: my ($cat,$container,$depth);
413: if ($env{'form.currcat_'.$currdepth} eq '') {
414: my $shallower = $currdepth - 1;
415: ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$shallower});
416: } else {
417: ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$currdepth});
418: }
419: my $deeperlevel = $depth +1;
420: if (ref($cats[$deeperlevel]{$cat}) eq 'ARRAY') {
421: $has_subcats = 1;
422: my $buttontext = &mt('Show subcategories');
423: my $selitem = 'currcat_'.$deeperlevel;
424: $catlinks .= ' <select name="'.$selitem.'" onchange="this.form.submit()">';
425: if (@{$cats[$deeperlevel]{$cat}}) {
426: $catlinks .= '<option value="" selected="selected">'.
427: &mt('Subcategory ...').'</option>';
428: }
429: for (my $k=0; $k<@{$cats[$deeperlevel]{$cat}}; $k++) {
430: my $name = $cats[$deeperlevel]{$cat}[$k];
431: my $item = &escape($name).':'.&escape($cat).':'.$deeperlevel;
432: $catlinks .= '<option value="'.$item.'">'.$name.'</option>'."\n";
433: }
434: $catlinks .= '</select>'."\n";
435: } elsif ($cat ne 'instcode') {
436: $catlinks .= ' '.&mt('(No subcategories)');
437: }
438: } else {
439: $selitem = 'currcat_0';
440: }
441: $catlinks .= $currcat_str.'</td></tr></table></td>';
442: return ($catlinks,$has_subcats,$selitem);
443: }
444:
445: sub main_category_selector {
446: my (@cats) = @_;
447: my $maincatlinks = '<select name="currcat_0" onchange="setCatDepth('."'0'".');this.form.submit();">'."\n";
448: if (ref($cats[0]) eq 'ARRAY') {
449: if (@{$cats[0]} > 1) {
450: my $selected = '';
451: if ($env{'form.currcat_0'} eq '') {
452: $selected = ' selected="selected"';
453: }
454: $maincatlinks .=
455: '<option value=""'.$selected.'>'.&mt('Select').'</option>'."\n";
456: }
457: for (my $i=0; $i<@{$cats[0]}; $i++) {
458: my $name = $cats[0][$i];
459: my $item = &escape($name).'::0';
460: my $selected;
461: if ($env{'form.currcat_0'} eq $item) {
462: $selected = ' selected="selected"';
463: }
464: $maincatlinks .= '<option value="'.$item.'"'.$selected.'>';
465: if ($name eq 'instcode') {
466: $maincatlinks .= &mt('Official courses (with institutional codes)');
467: } elsif ($name eq 'communities') {
468: $maincatlinks .= &mt('Communities');
469: } else {
470: $maincatlinks .= $name;
471: }
472: $maincatlinks .= '</option>'."\n";
473: }
474: $maincatlinks .= '</select>'."\n";
475: }
476: return $maincatlinks;
477: }
478:
479: sub get_depth_values {
480: my $currdepth = 0;
481: my $deeper = 0;
482: if ($env{'form.catalog_maxdepth'} ne '') {
483: $currdepth = $env{'form.catalog_maxdepth'};
484: if ($env{'form.currcat_'.$currdepth} eq '') {
485: $deeper = $currdepth;
486: } else {
487: $deeper = $currdepth + 1;
488: }
489: }
490: return ($currdepth,$deeper);
491: }
492:
493: sub additional_filters {
494: my ($codedom,$has_subcats) = @_;
495: my $output = '<table>';
496: if (($env{'form.currcat_0'} ne 'instcode::0') &&
497: ($env{'form.currcat_0'} ne '') && ($has_subcats)) {
498: my $include_subcat_status;
499: if ($env{'form.withsubcats'}) {
500: $include_subcat_status = 'checked="checked" ';
501: }
502: my $counter = $env{'form.catalog_maxdepth'};
503: if ($counter > 0) {
504: if ($env{'form.state'} eq 'listing') {
505: $counter --;
506: } elsif ($env{'form.currcat_'.$counter} eq '') {
507: $counter --;
508: }
509: }
510: my ($catname) = split(/:/,$env{'form.currcat_'.$counter});
511: if ($catname ne '') {
512: $output .= '<tr><td><label>'.
513: '<input type="checkbox" name="withsubcats" value="1" '.
514: $include_subcat_status.'/>'.
515: &mt('Include subcategories within "[_1]"',
516: &unescape($catname)).'</label></td></tr>';
517: }
518: }
519: my $show_selfenroll_status;
520: if ($env{'form.showselfenroll'}) {
521: $show_selfenroll_status = 'checked="checked" ';
522: }
523: my $selfenroll_text;
524: if ($env{'form.currcat_0'} eq 'communities::0') {
525: $selfenroll_text = &mt('Only show communities which currently allow self-enrollment (or will allow it in the future)');
526: } else {
527: $selfenroll_text = &mt('Only show courses which currently allow self-enrollment (or will allow it in the future)');
528: }
529: $output .= '<tr><td>'.
530: '<label><input type="checkbox" name="showselfenroll" value="1" '.
531: $show_selfenroll_status.'/>'.$selfenroll_text.
532: '</label></td></tr>';
533: if (&user_is_dc($codedom)) {
534: my $showdetails_status;
535: if ($env{'form.showdetails'}) {
536: $showdetails_status = 'checked="checked" ';
537: }
538: my $showhidden_status;
539: if ($env{'form.showhidden'}) {
540: $showhidden_status = 'checked="checked" ';
541: }
542: my $dc_title = &Apache::lonnet::plaintext('dc');
543: my ($details_text,$hidden_text);
544: if ($env{'form.currcat_0'} eq 'communities::0') {
545: $details_text = &mt('Show full details for each community ([_1] only)',$dc_title);
546: $hidden_text = &mt('Include communities set to be hidden from catalog ([_1] only)',$dc_title);
547: } else {
548: $details_text = &mt('Show full details for each course ([_1] only)',$dc_title);
549: $hidden_text = &mt('Include courses set to be hidden from catalog ([_1] only)',$dc_title);
550: }
551: $output .= '<tr><td>'."\n".
552: '<label><input type="checkbox" name="showdetails" value="1" '.
553: $showdetails_status.'/>'.$details_text.
554: '</label>'."\n".'</td></tr><tr><td>'.
555: '<label><input type="checkbox" name="showhidden" value="1" '.
556: $showhidden_status.'/>'.$hidden_text.
557: '</label>'."\n".'</td></tr>';
558: }
559: $output .= '</table><br />';
560: return $output;
561: }
562:
563: sub user_is_dc {
564: my ($codedom) = @_;
565: if (exists($env{'user.role.dc./'.$codedom.'/'})) {
566: my $livedc = 1;
567: my $now = time;
568: my ($start,$end)=split(/\./,$env{'user.role.dc./'.$codedom.'/'});
569: if ($start && $start>$now) { $livedc = 0; }
570: if ($end && $end <$now) { $livedc = 0; }
571: return $livedc;
572: }
573: return;
574: }
575:
576: sub search_official_courselist {
577: my ($domain,$numtitles,$codetitles) = @_;
578: my $instcode = &Apache::courseclassifier::instcode_search_str($domain,$numtitles,$codetitles);
579: my $showhidden;
580: if (&user_is_dc($domain)) {
581: $showhidden = $env{'form.showhidden'};
582: }
583: my %courses =
584: &Apache::lonnet::courseiddump($domain,'.',1,$instcode,'.','.',undef,undef,
585: 'Course',1,$env{'form.showselfenroll'},undef,
586: $showhidden,'coursecatalog');
587: return %courses;
588: }
589:
590: sub search_courselist {
591: my ($domain,$subcats) = @_;
592: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
593: my $filter = $env{'form.currcat_'.$cat_maxdepth};
594: if (($filter eq '') && ($cat_maxdepth > 0)) {
595: my $shallower = $cat_maxdepth - 1;
596: $filter = $env{'form.currcat_'.$shallower};
597: }
598: my %courses;
599: my $filterstr;
600: if ($filter ne '') {
601: if ($env{'form.withsubcats'}) {
602: if (ref($subcats) eq 'HASH') {
603: if (ref($subcats->{$filter}) eq 'ARRAY') {
604: $filterstr = join('&',@{$subcats->{$filter}});
605: if ($filterstr ne '') {
606: $filterstr = $filter.'&'.$filterstr;
607: }
608: } else {
609: $filterstr = $filter;
610: }
611: } else {
612: $filterstr = $filter;
613: }
614: } else {
615: $filterstr = $filter;
616: }
617: my ($showhidden,$typefilter);
618: if (&user_is_dc($domain)) {
619: $showhidden = $env{'form.showhidden'};
620: }
621: if ($env{'form.currcat_0'} eq 'communities::0') {
622: $typefilter = 'Community';
623: } else {
624: $typefilter = '.';
625: }
626: %courses =
627: &Apache::lonnet::courseiddump($domain,'.',1,'.','.','.',undef,undef,
628: $typefilter,1,$env{'form.showselfenroll'},
629: $filterstr,$showhidden,'coursecatalog');
630: }
631: return %courses;
632: }
633:
634: sub print_course_listing {
635: my ($domain,$numtitles,$trails,$allitems,$subcats,$codetitles) = @_;
636: my $output;
637: my %courses;
638: my $knownuser = &user_is_known();
639: my $details = $env{'form.coursenum'};
640: if (&user_is_dc($domain)) {
641: if ($env{'form.showdetails'}) {
642: $details = 1;
643: }
644: }
645: if ($env{'form.coursenum'} ne '') {
646: %courses = &Apache::lonnet::courseiddump($domain,'.',1,'.','.',
647: $env{'form.coursenum'},
648: undef,undef,'.',1);
649: if (keys(%courses) == 0) {
650: if ($env{'form.currcat_0'} eq 'communities::0') {
651: $output .= &mt('The courseID provided does not match a community in this domain.');
652: } else {
653: $output .= &mt('The courseID provided does not match a course in this domain.');
654: }
655: return $output;
656: }
657: } else {
658: if ($env{'form.currcat_0'} eq 'instcode::0') {
659: %courses = &search_official_courselist($domain,$numtitles,$codetitles);
660: } else {
661: %courses = &search_courselist($domain,$subcats);
662: }
663: if (keys(%courses) == 0) {
664: if ($env{'form.currcat_0'} eq 'communities::0') {
665: $output = &mt('No communities match the criteria you selected.');
666: } else {
667: $output = &mt('No courses match the criteria you selected.');
668: }
669: return $output;
670: }
671: if (($knownuser) && (!$env{'form.showdetails'}) && (!&user_is_dc($domain))) {
672: $output = '<b>'.&mt('Note for students:').'</b> '
673: .&mt('If you are officially enrolled in a course but the course is not listed in your LON-CAPA courses, click the "Show more details" link for the specific course and check the default access dates and/or automated enrollment settings.')
674: .'<br /><br />';
675: }
676: }
677: my $now = time;
678: my %domconfig =
679: &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
680: $output .= &construct_data_table($knownuser,\%courses,$details,undef,$now,\%domconfig,$trails,$allitems);
681: $output .= "\n".'<form name="linklaunch" method="post" action="">'.
682: '<input type="hidden" name="backto" value="coursecatalog" />'.
683: '<input type="hidden" name="courseid" value="" />'.
684: &Apache::lonhtmlcommon::echo_form_input(['catalogfilter','courseid']).'</form>';
685: return $output;
686: }
687:
688: sub construct_data_table {
689: my ($knownuser,$courses,$details,$usersections,$now,$domconfig,$trails,
690: $allitems) = @_;
691: my %sortname;
692: if (($details eq '') || ($env{'form.showdetails'})) {
693: $sortname{'Code'} = 'code';
694: $sortname{'Categories'} = 'cats';
695: $sortname{'Title'} = 'title';
696: $sortname{'Owner(s)'} = 'owner';
697: }
698: my $output = &Apache::loncommon::start_data_table().
699: &Apache::loncommon::start_data_table_header_row();
700: my @coltitles = ('Count');
701: if ($env{'form.currcat_0'} eq 'instcode::0') {
702: push(@coltitles,'Code');
703: } else {
704: push(@coltitles,'Categories');
705: }
706: push(@coltitles,('Sections','Crosslisted','Title','Owner(s)'));
707: if (ref($usersections) eq 'HASH') {
708: $coltitles[1] = 'Your Section';
709: }
710: foreach my $item (@coltitles) {
711: $output .= '<th>';
712: if (defined($sortname{$item})) {
713: $output .= '<a href="javascript:changeSort('."'$sortname{$item}'".')">'.&mt($item).'</a>';
714: } elsif ($item eq 'Count') {
715: $output .= ' ';
716: } else {
717: $output .= &mt($item);
718: }
719: $output .= '</th>';
720: }
721: if ($knownuser) {
722: if ($details) {
723: if ($env{'form.currcat_0'} eq 'communities::0') {
724: $output .= '<th>'.&mt('Default Access Dates for Members').'</th>';
725: } else {
726: $output .=
727: '<th>'.&mt('Default Access Dates for Students').'</th>'.
728: '<th>'.&mt('Student Counts').'</th>'.
729: '<th>'.&mt('Auto-enrollment of[_1]registered students','<br />').'</th>';
730: }
731: } else {
732: $output .= '<th>'.&mt('Details').'</th>';
733: }
734: }
735: $output .= '<th>'.&mt('Self-enroll (if permitted)').'</th>';
736: &Apache::loncommon::end_data_table_header_row();
737: my %courseinfo = &build_courseinfo_hash($courses,$knownuser,$details,
738: $usersections);
739: my %Sortby;
740: foreach my $course (sort(keys(%{$courses}))) {
741: if ($env{'form.sortby'} eq 'code') {
742: push(@{$Sortby{$courseinfo{$course}{'code'}}},$course);
743: } elsif ($env{'form.sortby'} eq 'cats') {
744: push(@{$Sortby{$courseinfo{$course}{'categories'}}},$course);
745: } elsif ($env{'form.sortby'} eq 'owner') {
746: push(@{$Sortby{$courseinfo{$course}{'ownerlastnames'}}},$course);
747: } else {
748: my $clean_title = $courseinfo{$course}{'title'};
749: $clean_title =~ s/\W+//g;
750: if ($clean_title eq '') {
751: $clean_title = $courseinfo{$course}{'title'};
752: }
753: push(@{$Sortby{$clean_title}},$course);
754: }
755: }
756: my @sorted_courses;
757: if (($env{'form.sortby'} eq 'code') || ($env{'form.sortby'} eq 'owner') ||
758: ($env{'form.sortby'} eq 'cats')) {
759: @sorted_courses = sort(keys(%Sortby));
760: } else {
761: @sorted_courses = sort { lc($a) cmp lc($b) } (keys(%Sortby));
762: }
763: my $count = 1;
764: foreach my $item (@sorted_courses) {
765: foreach my $course (@{$Sortby{$item}}) {
766: $output.=&Apache::loncommon::start_data_table_row();
767: $output.=&courseinfo_row($courseinfo{$course},$knownuser,$details,
768: \$count,$now,$course,$trails,$allitems);
769: $output.=&Apache::loncommon::end_data_table_row();
770: }
771: }
772: $output .= &Apache::loncommon::end_data_table();
773: return $output;
774: }
775:
776: sub build_courseinfo_hash {
777: my ($courses,$knownuser,$details,$usersections) = @_;
778: my %courseinfo;
779: my $now = time;
780: foreach my $course (keys(%{$courses})) {
781: my $descr;
782: if (ref($courses->{$course}) eq 'HASH') {
783: $descr = $courses->{$course}{'description'};
784: }
785: my $cleandesc=&HTML::Entities::encode($descr,'<>&"');
786: $cleandesc=~s/'/\\'/g;
787: $cleandesc =~ s/^\s+//;
788: my ($cdom,$cnum)=split(/\_/,$course);
789: my ($instcode,$singleowner,$ttype,$selfenroll_types,
790: $selfenroll_start,$selfenroll_end,@owners,%ownernames,$categories);
791: if (ref($courses->{$course}) eq 'HASH') {
792: $descr = $courses->{$course}{'description'};
793: $instcode = $courses->{$course}{'inst_code'};
794: $singleowner = $courses->{$course}{'owner'};
795: $ttype = $courses->{$course}{'type'};
796: $selfenroll_types = $courses->{$course}{'selfenroll_types'};
797: $selfenroll_start = $courses->{$course}{'selfenroll_start_date'};
798: $selfenroll_end = $courses->{$course}{'selfenroll_end_date'};
799: $categories = $courses->{$course}{'categories'};
800: push(@owners,$singleowner);
801: if ($courses->{$course}{'co-owners'} ne '') {
802: foreach my $item (split(/,/,$courses->{$course}{'co-owners'})) {
803: push(@owners,$item);
804: }
805: }
806: }
807: foreach my $owner (@owners) {
808: my ($ownername,$ownerdom);
809: if ($owner =~ /:/) {
810: ($ownername,$ownerdom) = split(/:/,$owner);
811: } else {
812: $ownername = $owner;
813: if ($owner ne '') {
814: $ownerdom = $cdom;
815: }
816: }
817: if ($ownername ne '' && $ownerdom ne '') {
818: my %namehash=&Apache::loncommon::getnames($ownername,$ownerdom);
819: $ownernames{$ownername.':'.$ownerdom} = \%namehash;
820: }
821: }
822: $courseinfo{$course}{'cdom'} = $cdom;
823: $courseinfo{$course}{'cnum'} = $cnum;
824: $courseinfo{$course}{'code'} = $instcode;
825: my @lastnames;
826: foreach my $owner (keys(%ownernames)) {
827: if (ref($ownernames{$owner}) eq 'HASH') {
828: push(@lastnames,$ownernames{$owner}{'lastname'});
829: }
830: }
831: $courseinfo{$course}{'ownerlastnames'} = join(', ',sort(@lastnames));
832: $courseinfo{$course}{'title'} = $cleandesc;
833: $courseinfo{$course}{'owner'} = $singleowner;
834: $courseinfo{$course}{'selfenroll_types'} = $selfenroll_types;
835: $courseinfo{$course}{'selfenroll_start'} = $selfenroll_start;
836: $courseinfo{$course}{'selfenroll_end'} = $selfenroll_end;
837: $courseinfo{$course}{'categories'} = $categories;
838:
839: my %coursehash = &Apache::lonnet::dump('environment',$cdom,$cnum);
840: my @classids;
841: my @crosslistings;
842: my ($seclist,$numsec) =
843: &identify_sections($coursehash{'internal.sectionnums'});
844: if (ref($usersections) eq 'HASH') {
845: if (ref($usersections->{$course}) eq 'ARRAY') {
846: $seclist = join(', ',@{$usersections->{$course}});
847: }
848: }
849: $courseinfo{$course}{'seclist'} = $seclist;
850: my ($xlist_items,$numxlist) =
851: &identify_sections($coursehash{'internal.crosslistings'});
852: my $showsyllabus = 1; # default is to include a syllabus link
853: if (defined($coursehash{'showsyllabus'})) {
854: $showsyllabus = $coursehash{'showsyllabus'};
855: }
856: $courseinfo{$course}{'showsyllabus'} = $showsyllabus;
857: if (((defined($env{'form.coursenum'}) && ($cnum eq $env{'form.coursenum'}))) ||
858: ($knownuser && ($details == 1))) {
859: $courseinfo{$course}{'counts'} = &count_students($cdom,$cnum,$numsec);
860: $courseinfo{$course}{'autoenrollment'} =
861: &autoenroll_info(\%coursehash,$now,$seclist,$xlist_items,
862: $instcode,\@owners,$cdom,$cnum);
863:
864: my $startaccess = '';
865: my $endaccess = '';
866: my $accessdates;
867: if ( defined($coursehash{'default_enrollment_start_date'}) ) {
868: $startaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_start_date'});
869: }
870: if ( defined($coursehash{'default_enrollment_end_date'}) ) {
871: $endaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_end_date'});
872: if ($coursehash{'default_enrollment_end_date'} == 0) {
873: $endaccess = &mt('No ending date');
874: }
875: }
876: if ($startaccess) {
877: $accessdates .= '<i>'.&mt('From:[_1]','</i> '.$startaccess).'<br />';
878: }
879: if ($endaccess) {
880: $accessdates .= '<i>'.&mt('To:[_1]','</i> '.$endaccess).'<br />';
881: }
882: if (($selfenroll_types ne '') &&
883: ($selfenroll_end > 0 && $selfenroll_end > $now)) {
884: my ($selfenroll_start_access,$selfenroll_end_access);
885: if (($coursehash{'default_enrollment_start_date'} ne
886: $coursehash{'internal.selfenroll_start_access'}) ||
887: ($coursehash{'default_enrollment_end_date'} ne
888: $coursehash{'internal.selfenroll_end_access'})) {
889: if ( defined($coursehash{'internal.selfenroll_start_access'}) ) {
890: $selfenroll_start_access = &Apache::lonlocal::locallocaltime($coursehash{'internal.selfenroll_start_access'});
891: }
892: if ( defined($coursehash{'default_enrollment_end_date'}) ) {
893: $selfenroll_end_access = &Apache::lonlocal::locallocaltime($coursehash{'internal.selfenroll_end_access'});
894: if ($coursehash{'internal.selfenroll_end_access'} == 0) {
895: $selfenroll_end_access = &mt('No ending date');
896: }
897: }
898: if ($selfenroll_start_access || $selfenroll_end_access) {
899: $accessdates .= '<br/><br /><i>'.&mt('Self-enrollers:').'</i><br />';
900: if ($selfenroll_start_access) {
901: $accessdates .= '<i>'.&mt('From:[_1]','</i> '.$selfenroll_start_access).'<br />';
902: }
903: if ($selfenroll_end_access) {
904: $accessdates .= '<i>'.&mt('To:[_1]','</i> '.$selfenroll_end_access).'<br />';
905: }
906: }
907: }
908: }
909: $courseinfo{$course}{'access'} = $accessdates;
910: }
911: if ($xlist_items eq '') {
912: $xlist_items = &mt('No');
913: }
914: $courseinfo{$course}{'xlist'} = $xlist_items;
915: }
916: return %courseinfo;
917: }
918:
919: sub count_students {
920: my ($cdom,$cnum,$numsec) = @_;
921: my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cnum);
922: my %student_count = (
923: Active => 0,
924: Future => 0,
925: Expired => 0,
926: );
927: my %idx;
928: $idx{'status'} = &Apache::loncoursedata::CL_STATUS();
929: my %status_title = &Apache::lonlocal::texthash(
930: Expired => 'Previous access',
931: Active => 'Current access',
932: Future => 'Future access',
933: );
934:
935: while (my ($student,$data) = each(%$classlist)) {
936: $student_count{$data->[$idx{'status'}]} ++;
937: }
938:
939: my $countslist = &mt('[quant,_1,section:,sections:,No sections]',$numsec).'<br />';
940: foreach my $status ('Active','Future') {
941: $countslist .= '<span class="LC_nobreak">'.$status_title{$status}.': '.
942: $student_count{$status}.'</span><br />';
943: }
944: return $countslist;
945: }
946:
947: sub courseinfo_row {
948: my ($info,$knownuser,$details,$countref,$now,$course,$trails,$allitems) = @_;
949: my ($cdom,$cnum,$title,$ownerlast,$code,$owner,$seclist,$xlist_items,
950: $accessdates,$showsyllabus,$counts,$autoenrollment,$output,$categories);
951: if (ref($info) eq 'HASH') {
952: $cdom = $info->{'cdom'};
953: $cnum = $info->{'cnum'};
954: $title = $info->{'title'};
955: $ownerlast = $info->{'ownerlastnames'};
956: $code = $info->{'code'};
957: $owner = $info->{'owner'};
958: $seclist = $info->{'seclist'};
959: $xlist_items = $info->{'xlist'};
960: $accessdates = $info->{'access'};
961: $counts = $info->{'counts'};
962: $autoenrollment = $info->{'autoenrollment'};
963: $showsyllabus = $info->{'showsyllabus'};
964: $categories = $info->{'categories'};
965: } else {
966: $output = '<td colspan="8">'.&mt('No information available for [_1].',
967: $code).'</td>';
968: return $output;
969: }
970: $output .= '<td>'.$$countref.'</td>';
971: if ($env{'form.currcat_0'} eq 'instcode::0') {
972: $output .= '<td>'.$code.'</td>';
973: } else {
974: my ($categorylist,@cats);
975: if ($categories ne '') {
976: @cats = split('&',$categories);
977: }
978: if ((ref($trails) eq 'ARRAY') && (ref($allitems) eq 'HASH')) {
979: my @categories = map { $trails->[$allitems->{$_}]; } @cats;
980: $categorylist = join('<br />',@categories);
981: }
982: if ($categorylist eq '') {
983: $categorylist = ' ';
984: }
985: $output .= '<td>'.$categorylist.'</td>';
986: }
987: $output .= '<td>'.$seclist.'</td>'.
988: '<td>'.$xlist_items.'</td>'.
989: '<td>'.$title.' <font size="-2">';
990: if ($showsyllabus) {
991: $output .= '<a href="javascript:ToSyllabus('."'$cdom','$cnum'".')">'.&mt('Syllabus').'</a>';
992: } else {
993: $output .= ' ';
994: }
995: $output .= '</font></td>'.
996: '<td>'.$ownerlast.'</td>';
997: if ($knownuser) {
998: if ($details) {
999: if ($env{'form.currcat_0'} eq 'communities::0') {
1000: $output .= '<td>'.$accessdates.'</td>';
1001: } else {
1002: $output .=
1003: '<td>'.$accessdates.'</td>'.
1004: '<td>'.$counts.'</td>'.
1005: '<td>'.$autoenrollment.'</td>';
1006: }
1007: } else {
1008: $output .= "<td><a href=\"javascript:setCourseId('$cnum')\">".&mt('Show more details').'</a></td>';
1009: }
1010: }
1011: my $selfenroll;
1012: if ($info->{'selfenroll_types'}) {
1013: my $showstart = &Apache::lonlocal::locallocaltime($info->{'selfenroll_start'});
1014: my $showend = &Apache::lonlocal::locallocaltime($info->{'selfenroll_end'});
1015: if (($info->{'selfenroll_end'} > 0) && ($info->{'selfenroll_end'} > $now)) {
1016: if (($info->{'selfenroll_start'} > 0) && ($info->{'selfenroll_start'} > $now)) {
1017: $output .= '<td>'.&mt('Starts: [_1]','<span class="LC_cusr_emph">'.$showstart.'</span>').'<br />'.&mt('Ends: [_1]','<span class="LC_cusr_emph">'.$showend.'</span>').'</td>';
1018: } else {
1019: $output .= '<td><a href="javascript:ToSelfenroll('."'$course'".')">'.&mt('Enroll in course').'</a><br />';
1020: if ($info->{'selfenroll_end'} == 0) {
1021: $output .= &mt('Available permanently');
1022: } elsif ($info->{'selfenroll_end'} > $now) {
1023: $output .= &mt('Self-enrollment ends: [_1]','<span class="LC_cusr_emph">'.$showend.'</span>');
1024: }
1025: $output .= '</td>';
1026: }
1027: $selfenroll = 1;
1028: }
1029: }
1030: if (!$selfenroll) {
1031: $output .= '<td> </td>';
1032: }
1033: $$countref ++;
1034: return $output;
1035: }
1036:
1037: sub identify_sections {
1038: my ($seclist) = @_;
1039: my @secnums;
1040: if ($seclist =~ /,/) {
1041: my @sections = split(/,/,$seclist);
1042: foreach my $sec (@sections) {
1043: $sec =~ s/:[^:]*$//;
1044: push(@secnums,$sec);
1045: }
1046: } else {
1047: if ($seclist =~ m/^([^:]+):/) {
1048: my $sec = $1;
1049: if (!grep(/^\Q$sec\E$/,@secnums)) {
1050: push(@secnums,$sec);
1051: }
1052: }
1053: }
1054: @secnums = sort {$a <=> $b} @secnums;
1055: $seclist = join(', ',@secnums);
1056: my $numsec = @secnums;
1057: return ($seclist,$numsec);
1058: }
1059:
1060: sub get_valid_classes {
1061: my ($seclist,$xlist_items,$crscode,$owners,$cdom,$cnum) = @_;
1062: my $response;
1063: my %validations;
1064: @{$validations{'sections'}} = ();
1065: @{$validations{'xlists'}} = ();
1066: my $totalitems = 0;
1067: if ($seclist) {
1068: foreach my $sec (split(/, /,$seclist)) {
1069: my $class = $crscode.$sec;
1070: if (&Apache::lonnet::auto_validate_class_sec($cdom,$cnum,$owners,
1071: $class) eq 'ok') {
1072: if (!grep(/^\Q$sec$\E/,@{$validations{'sections'}})) {
1073: push(@{$validations{'sections'}},$sec);
1074: $totalitems ++;
1075: }
1076: }
1077: }
1078: }
1079: if ($xlist_items) {
1080: foreach my $item (split(/, /,$xlist_items)) {
1081: if (&Apache::lonnet::auto_validate_class_sec($cdom,$cnum,$owners,
1082: $item) eq 'ok') {
1083: if (!grep(/^\Q$item$\E/,@{$validations{'xlists'}})) {
1084: push(@{$validations{'xlists'}},$item);
1085: $totalitems ++;
1086: }
1087: }
1088: }
1089: }
1090: if ($totalitems > 0) {
1091: if (@{$validations{'sections'}}) {
1092: $response = &mt('Sections:').' '.
1093: join(', ',@{$validations{'sections'}}).'<br />';
1094: }
1095: if (@{$validations{'xlists'}}) {
1096: $response .= &mt('Courses:').' '.
1097: join(', ',@{$validations{'xlists'}});
1098: }
1099: }
1100: return $response;
1101: }
1102:
1103: sub autoenroll_info {
1104: my ($coursehash,$now,$seclist,$xlist_items,$code,$owners,$cdom,$cnum) = @_;
1105: my $autoenrolldates = &mt('Not enabled');
1106: if (defined($coursehash->{'internal.autoadds'}) && $coursehash->{'internal.autoadds'} == 1) {
1107: my ($autostart,$autoend);
1108: if ( defined($coursehash->{'internal.autostart'}) ) {
1109: $autostart = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autostart'});
1110: }
1111: if ( defined($coursehash->{'internal.autoend'}) ) {
1112: $autoend = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autoend'});
1113: }
1114: if ($coursehash->{'internal.autostart'} > $now) {
1115: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
1116: $autoenrolldates = &mt('Not enabled');
1117: } else {
1118: my $valid_classes =
1119: &get_valid_classes($seclist,$xlist_items,$code,
1120: $owners,$cdom,$cnum);
1121: if ($valid_classes ne '') {
1122: $autoenrolldates = &mt('Not enabled').'<br />'
1123: .&mt('Starts: [_1]',$autostart)
1124: .'<br />'.$valid_classes;
1125: }
1126: }
1127: } else {
1128: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
1129: $autoenrolldates = &mt('Not enabled').'<br />'
1130: .&mt('Ended: [_1]',$autoend);
1131: } else {
1132: my $valid_classes = &get_valid_classes($seclist,$xlist_items,
1133: $code,$owners,$cdom,$cnum);
1134: if ($valid_classes ne '') {
1135: $autoenrolldates = &mt('Currently enabled').'<br />'.
1136: $valid_classes;
1137: }
1138: }
1139: }
1140: }
1141: return $autoenrolldates;
1142: }
1143:
1144: sub user_is_known {
1145: my $known = 0;
1146: if ($env{'user.name'} ne '' && $env{'user.name'} ne 'public'
1147: && $env{'user.domain'} ne '' && $env{'user.domain'} ne 'public') {
1148: $known = 1;
1149: }
1150: return $known;
1151: }
1152:
1153: 1;
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