1: # The LearningOnline Network with CAPA
2: # Handler for displaying the course catalog interface
3: #
4: # $Id: coursecatalog.pm,v 1.74 2013/03/04 02:33:21 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 $wasacctext = &get_wasactive_text();
96: my $catjs = <<"ENDSCRIPT";
97:
98: function setCatDepth(depth) {
99: document.coursecats.catalog_maxdepth.value = depth;
100: if (depth == '') {
101: document.coursecats.currcat_0.value = '';
102: }
103: document.coursecats.submit();
104: return;
105: }
106:
107: function changeSort(caller) {
108: document.$formname.sortby.value = caller;
109: document.$formname.submit();
110: }
111:
112: function setCourseId(caller) {
113: document.$formname.coursenum.value = caller;
114: document.$formname.submit();
115: }
116:
117: ENDSCRIPT
118: $catjs .= &courselink_javascript();
119: if (&user_is_dc($codedom)) {
120: $catjs .= <<ENDTOGGJS
121:
122: function toggleStatuses() {
123: if (document.$formname.showdetails.checked) {
124: document.getElementById('statuschoice').style.display='block';
125: document.getElementById('statuscell').style.borderLeft='1px solid';
126: } else {
127: document.getElementById('statuschoice').style.display='none';
128: document.getElementById('statuscell').style.borderLeft='0px';
129: }
130: return;
131: }
132:
133: function toggleWasActive() {
134: if (document.getElementById('counts_Previous')) {
135: if (document.getElementById('counts_Previous').checked) {
136: document.getElementById('choosewasactive').style.display='block';
137: document.getElementById('choosewasacctext').innerHTML = '$wasacctext';
138: } else {
139: document.getElementById('choosewasactive').style.display='none';
140: document.getElementById('choosewasacctext').innerHTML = '';
141: }
142: }
143: return;
144: }
145:
146: ENDTOGGJS
147: }
148: if ($env{'form.currcat_0'} eq 'instcode::0') {
149: $numtitles = &instcode_course_selector($r,$codedom,$formname,$domdesc,
150: $catlinks,$catjs,\@codetitles);
151: if ($env{'form.state'} eq 'listing') {
152: $r->print(&print_course_listing($codedom,$numtitles,undef,undef,undef,
153: \@codetitles));
154: }
155: } else {
156: my (%add_entries);
157: my ($currdepth,$deeper) = &get_depth_values();
158: if ($selitem) {
159: my $alert = &mt('Choose a subcategory to display');
160: if (!$deeper) {
161: $alert = &mt('Choose a category to display');
162: }
163: $catjs .= <<ENDJS;
164: function check_selected() {
165: if (document.coursecats.$selitem.options[document.coursecats.$selitem.selectedIndex].value == "") {
166: alert('$alert');
167: return false;
168: }
169: }
170: ENDJS
171: }
172: $catjs = '<script type="text/javascript">'."\n".$catjs."\n".'</script>';
173: &cat_header($r,$codedom,$catjs,\%add_entries,$catlinks);
174: if ($env{'form.currcat_0'} ne '') {
175: $r->print('<form name="'.$formname.
176: '" method="post" action="/adm/coursecatalog">'.
177: &additional_filters($codedom,$has_subcats)."\n");
178: $r->print('<input type="hidden" name="catalog_maxdepth" value="'.
179: $deeper.'" />'."\n");
180: for (my $i=0; $i<$deeper; $i++) {
181: $r->print('<input type="hidden" name="currcat_'.$i.'" value="'.$env{'form.currcat_'.$i}.'" />'."\n");
182: }
183: my $display_button;
184: if ($env{'form.currcat_0'} eq 'communities::0') {
185: $display_button = &mt('Display communities');
186: } else {
187: $display_button = &mt('Display courses');
188: }
189: $r->print('<input type="hidden" name="coursenum" value="" />'."\n".
190: '<input type="hidden" name="sortby" value="" />'."\n".
191: '<input type="hidden" name="state" value="listing" />'."\n".
192: '<input type="hidden" name="showdom" value="'.
193: $env{'form.showdom'}.'" />'.
194: '<input type="submit" name="catalogfilter" value="'.
195: $display_button.'" /></form><br /><br />');
196: }
197: if ($env{'form.state'} eq 'listing') {
198: $r->print(&print_course_listing($codedom,undef,\@trails,\%allitems,$subcats,\@codetitles));
199: }
200: }
201: }
202: $r->print('<br />'.&Apache::loncommon::end_page());
203: return OK;
204: }
205:
206: sub course_details {
207: my ($r,$codedom,$formname,$domdesc,$trails,$allitems,$codetitles) = @_;
208: my $output;
209: my %add_entries = (topmargin => "0",
210: marginheight => "0",);
211: my $js = '<script type="text/javascript">'."\n".
212: &courselink_javascript().'</script>'."\n";
213: my $start_page =
214: &Apache::loncommon::start_page('Course/Community Catalog',$js,
215: {'add_entries' => \%add_entries, });
216: $r->print($start_page);
217: if ($env{'form.numtitles'} > 0) {
218: &Apache::lonhtmlcommon::add_breadcrumb
219: ({href=>"/adm/coursecatalog",
220: text=>"Course/Community Catalog"});
221: }
222: my $brtextone = 'Course listing';
223: my $brtexttwo = 'Course details';
224: if ($env{'form.currcat_0'} eq 'communities::0') {
225: $brtextone = 'Community listing';
226: $brtexttwo = 'Community details';
227: }
228: &Apache::lonhtmlcommon::add_breadcrumb
229: ({href=>"javascript:document.$formname.submit()",
230: text=>$brtextone},
231: {text=>$brtexttwo});
232: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog'));
233: $r->print('<br />');
234: if ($env{'form.currcat_0'} eq 'communities::0') {
235: $r->print(&mt('Detailed community information:'));
236: } else {
237: $r->print(&mt('Detailed course information:'));
238: }
239: $r->print('<br /><br />'.
240: &print_course_listing($codedom,undef,$trails,$allitems,undef,$codetitles).
241: '<br /><br />');
242: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
243: '<a href = "javascript:document.coursecatalog.submit()">');
244: if ($env{'form.currcat_0'} eq 'communities::0') {
245: $r->print(&mt('Back to community listing'));
246: } else {
247: $r->print(&mt('Back to course listing'));
248: }
249: $r->print('</a>'.
250: &Apache::lonhtmlcommon::echo_form_input(['coursenum','catalogfilter',
251: 'showdetails','courseid']).'</form>');
252: return;
253: }
254:
255: sub courselink_javascript {
256: return <<"END";
257:
258: function ToSyllabus(cdom,cnum) {
259: if (cdom == '' || cdom == null) {
260: return;
261: }
262: if (cnum == '' || cnum == null) {
263: return;
264: }
265: document.linklaunch.action = "/public/"+cdom+"/"+cnum+"/syllabus";
266: document.linklaunch.submit();
267: }
268:
269: function ToSelfenroll(courseid) {
270: if (courseid == '') {
271: return;
272: }
273: document.linklaunch.action = "/adm/selfenroll";
274: document.linklaunch.courseid.value = courseid;
275: document.linklaunch.submit();
276: }
277:
278: END
279: }
280:
281: sub instcode_course_selector {
282: my ($r,$codedom,$formname,$domdesc,$catlinks,$catjs,$codetitles) = @_;
283: my %coursecodes = ();
284: my %codes = ();
285: my %cat_titles = ();
286: my %cat_order = ();
287: my %cat_items;
288: my $caller = 'global';
289: my $format_reply;
290: my %add_entries = (topmargin => "0",
291: marginheight => "0",);
292: my ($jscript,$totcodes,$numtitles,$lasttitle) =
293: &Apache::courseclassifier::instcode_selectors_data($codedom,$formname,
294: \%cat_items,$codetitles,\%cat_titles,\%cat_order);
295: my $js = '<script type"text/javascript">'."\n$jscript\n$catjs\n".
296: '</script>';
297: if ($totcodes) {
298: if (($env{'form.state'} eq 'listing') && ($numtitles > 0)) {
299: $add_entries{'onLoad'} = 'setElements();';
300: }
301: if (&user_is_dc($codedom)) {
302: $add_entries{'onLoad'} .= ' toggleStatuses();toggleWasActive();'
303: }
304: &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles);
305: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
306: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
307: '<input type="hidden" name="catalog_maxdepth" value="'.$cat_maxdepth.'" />'."\n".
308: '<input type="hidden" name="showdom" value="'.$env{'form.showdom'}.'" />'."\n".
309: '<input type="hidden" name="currcat_0" value="instcode::0" />'.
310: &additional_filters($codedom));
311: if ($numtitles > 0) {
312: $r->print('<b>'.&mt('Choose which course(s) to list.').'</b><br />'.
313: &Apache::courseclassifier::build_instcode_selectors($numtitles,
314: $lasttitle,\%cat_items,$codetitles,\%cat_titles,\%cat_order));
315: }
316: $r->print('<input type="hidden" name="coursenum" value="" />'."\n".
317: '<input type="hidden" name="sortby" value="" />'."\n".
318: '<input type="hidden" name="state" value="listing" />'."\n".
319: '<input type="submit" name="catalogfilter" value="'.
320: &mt('Display courses').'" />'.
321: '<input type="hidden" name="numtitles" value="'.$numtitles.
322: '" /></form><br /><br />');
323: } else {
324: $js = '<script type"text/javascript">'."\n$catjs\n".'</script>';
325: &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles);
326: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
327: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
328: '<input type="hidden" name="catalog_maxdepth" value="'.$cat_maxdepth.'" />'.
329: '<input type="hidden" name="showdom" value="'.$env{'form.showdom'}.'" />'.
330: '<input type="hidden" name="currcat_0" value="instcode::0" />');
331: $r->print('<br />'.&mt('No official courses to display for [_1].',$domdesc).'</form>');
332: }
333: return $numtitles;
334: }
335:
336: sub cat_header {
337: my ($r,$codedom,$js,$add_entries,$catlinks,$numtitles) = @_;
338: my $start_page =
339: &Apache::loncommon::start_page('Course/Community Catalog',$js,
340: { 'add_entries' => $add_entries, });
341: $r->print($start_page);
342: my $brtext = 'Course listing';
343: if ($env{'form.currcat_0'} eq 'communities::0') {
344: $brtext = 'Community listing';
345: }
346: if ($env{'form.state'} eq 'listing') {
347: if ($numtitles > 0) {
348: &Apache::lonhtmlcommon::add_breadcrumb
349: ({href=>"/adm/coursecatalog",
350: text=>"Course/Community Catalog"},
351: {text=>$brtext});
352: } else {
353: &Apache::lonhtmlcommon::add_breadcrumb
354: ({text=>$brtext});
355: }
356: } else {
357: &Apache::lonhtmlcommon::add_breadcrumb
358: ({href=>"/adm/coursecatalog",
359: text=>"Course/Community Catalog"});
360: }
361: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog'));
362: my $onchange = 'this.form.submit()';
363: $r->print('<form name="coursecatdom" method="post" action="/adm/coursecatalog">'.
364: '<table border="0"><tr><td><b>'.&mt('Domain:').'</b></td><td>'.
365: &Apache::loncommon::select_dom_form($codedom,'showdom','',1,$onchange));
366: if (!$onchange) {
367: $r->print(' <input type="submit" name="godom" value="'.&mt('Change').'" />');
368: }
369: $r->print('</td></tr></table></form>'.
370: '<form name="coursecats" method="post" action="/adm/coursecatalog"'.
371: ' onsubmit="return check_selected();">'.
372: '<table border="0"><tr>'.$catlinks.'</tr></table></form>');
373: return;
374: }
375:
376: sub category_breadcrumbs {
377: my ($dom,@cats) = @_;
378: my $crumbsymbol = ' ▶ ';
379: my ($currdepth,$deeper) = &get_depth_values();
380: my $currcat_str =
381: '<input type="hidden" name="catalog_maxdepth" value="'.$deeper.'" />'.
382: '<input type="hidden" name="showdom" value="'.$dom.'" />';
383: my $catlinks = '<td valign="top"><b>'.&mt('Catalog:').'</b></td><td><table><tr><td>';
384: my $has_subcats;
385: my $selitem;
386: if (ref($cats[0]) eq 'ARRAY') {
387: if (@{$cats[0]} == 0) {
388: $catlinks .= &mt('No categories defined in this domain');
389: } elsif (@{$cats[0]} == 1) {
390: if ($cats[0][0] eq 'instcode') {
391: $catlinks .= &mt('Official courses (with institutional codes)');
392: $env{'form.currcat_0'} = 'instcode::0';
393: } elsif ($cats[0][0] eq 'communities') {
394: $catlinks .= &mt('Communities');
395: $env{'form.currcat_0'} = 'communities::0';
396: } else {
397: my $name = $cats[0][0];
398: my $item = &escape($name).'::0';
399: $catlinks .= $name;
400: $env{'form.currcat_0'} = $item;
401: }
402: $currcat_str .= '<input type="hidden" name="currcat_0" value="'.$env{'form.currcat_0'}.'" />';
403: } else {
404: $catlinks .= &main_category_selector(@cats);
405: if (($env{'form.currcat_0'} ne '') &&
406: ($env{'form.currcat_0'} ne 'instcode::0')) {
407: $catlinks .= $crumbsymbol;
408: }
409: }
410: } else {
411: $catlinks .= &mt('Official courses (with institutional codes)');
412: $env{'form.currcat_0'} = 'instcode::0';
413: $currcat_str .= '<input type="hidden" name="currcat_0" value="'.$env{'form.currcat_0'}.'" />';
414: }
415: if ($deeper) {
416: for (my $i=1; $i<=$deeper; $i++) {
417: my $shallower = $i-1;
418: next if ($shallower == 0);
419: my ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$shallower});
420: if ($cat ne '') {
421: $catlinks .= '<td valign="top">'.
422: '<select name="currcat_'.$shallower.'" onchange="'.
423: 'setCatDepth('."'$shallower'".');this.form.submit();">';
424: if (ref($cats[$shallower]{$container}) eq 'ARRAY') {
425: $catlinks .= '<option value="">'.&mt('De-select').'</option>';
426: for (my $j=0; $j<@{$cats[$shallower]{$container}}; $j++) {
427: my $name = $cats[$shallower]{$container}[$j];
428: my $item = &escape($name).':'.&escape($container).':'.$shallower;
429: my $selected = '';
430: if ($item eq $env{'form.currcat_'.$shallower}) {
431: $selected = ' selected="selected"';
432: }
433: $catlinks .=
434: '<option value="'.$item.'"'.$selected.'>'.$name.'</option>';
435: }
436: }
437: $catlinks .= '</select>';
438: }
439: unless ($i == $deeper) {
440: $catlinks .= $crumbsymbol;
441: }
442: }
443: my ($cat,$container,$depth);
444: if ($env{'form.currcat_'.$currdepth} eq '') {
445: my $shallower = $currdepth - 1;
446: ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$shallower});
447: } else {
448: ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$currdepth});
449: }
450: my $deeperlevel = $depth +1;
451: if (ref($cats[$deeperlevel]{$cat}) eq 'ARRAY') {
452: $has_subcats = 1;
453: my $buttontext = &mt('Show subcategories');
454: my $selitem = 'currcat_'.$deeperlevel;
455: $catlinks .= ' <select name="'.$selitem.'" onchange="this.form.submit()">';
456: if (@{$cats[$deeperlevel]{$cat}}) {
457: $catlinks .= '<option value="" selected="selected">'.
458: &mt('Subcategory ...').'</option>';
459: }
460: for (my $k=0; $k<@{$cats[$deeperlevel]{$cat}}; $k++) {
461: my $name = $cats[$deeperlevel]{$cat}[$k];
462: my $item = &escape($name).':'.&escape($cat).':'.$deeperlevel;
463: $catlinks .= '<option value="'.$item.'">'.$name.'</option>'."\n";
464: }
465: $catlinks .= '</select>'."\n";
466: } elsif ($cat ne 'instcode') {
467: $catlinks .= ' '.&mt('(No subcategories)');
468: }
469: } else {
470: $selitem = 'currcat_0';
471: }
472: $catlinks .= $currcat_str.'</td></tr></table></td>';
473: return ($catlinks,$has_subcats,$selitem);
474: }
475:
476: sub main_category_selector {
477: my (@cats) = @_;
478: my $maincatlinks = '<select name="currcat_0" onchange="setCatDepth('."'0'".');this.form.submit();">'."\n";
479: if (ref($cats[0]) eq 'ARRAY') {
480: if (@{$cats[0]} > 1) {
481: my $selected = '';
482: if ($env{'form.currcat_0'} eq '') {
483: $selected = ' selected="selected"';
484: }
485: $maincatlinks .=
486: '<option value=""'.$selected.'>'.&mt('Select').'</option>'."\n";
487: }
488: for (my $i=0; $i<@{$cats[0]}; $i++) {
489: my $name = $cats[0][$i];
490: my $item = &escape($name).'::0';
491: my $selected;
492: if ($env{'form.currcat_0'} eq $item) {
493: $selected = ' selected="selected"';
494: }
495: $maincatlinks .= '<option value="'.$item.'"'.$selected.'>';
496: if ($name eq 'instcode') {
497: $maincatlinks .= &mt('Official courses (with institutional codes)');
498: } elsif ($name eq 'communities') {
499: $maincatlinks .= &mt('Communities');
500: } else {
501: $maincatlinks .= $name;
502: }
503: $maincatlinks .= '</option>'."\n";
504: }
505: $maincatlinks .= '</select>'."\n";
506: }
507: return $maincatlinks;
508: }
509:
510: sub get_depth_values {
511: my $currdepth = 0;
512: my $deeper = 0;
513: if ($env{'form.catalog_maxdepth'} ne '') {
514: $currdepth = $env{'form.catalog_maxdepth'};
515: if ($env{'form.currcat_'.$currdepth} eq '') {
516: $deeper = $currdepth;
517: } else {
518: $deeper = $currdepth + 1;
519: }
520: }
521: return ($currdepth,$deeper);
522: }
523:
524: sub additional_filters {
525: my ($codedom,$has_subcats) = @_;
526: my $is_dc = &user_is_dc($codedom);
527: my $output = '<div class="LC_left_float">';
528: if ($is_dc) {
529: $output .= '<fieldset><legend>'.&mt('Options').'</legend>';
530: }
531: $output .= '<table><tr><td valign="top">';
532: if (($env{'form.currcat_0'} ne 'instcode::0') &&
533: ($env{'form.currcat_0'} ne '') && ($has_subcats)) {
534: my $include_subcat_status;
535: if ($env{'form.withsubcats'}) {
536: $include_subcat_status = 'checked="checked" ';
537: }
538: my $counter = $env{'form.catalog_maxdepth'};
539: if ($counter > 0) {
540: if ($env{'form.state'} eq 'listing') {
541: $counter --;
542: } elsif ($env{'form.currcat_'.$counter} eq '') {
543: $counter --;
544: }
545: }
546: my ($catname) = split(/:/,$env{'form.currcat_'.$counter});
547: if ($catname ne '') {
548: $output .= '<span class="LC_nobreak"><label>'.
549: '<input type="checkbox" name="withsubcats" value="1" '.
550: $include_subcat_status.'/>'.
551: &mt('Include subcategories within "[_1]"',
552: &unescape($catname)).'</label></span><br />';
553: }
554: }
555: my $show_selfenroll_status;
556: if ($env{'form.showselfenroll'}) {
557: $show_selfenroll_status = 'checked="checked" ';
558: }
559: my $selfenroll_text;
560: if ($env{'form.currcat_0'} eq 'communities::0') {
561: $selfenroll_text = &mt('Only show communities which currently allow self-enrollment (or will allow it in the future)');
562: } else {
563: $selfenroll_text = &mt('Only show courses which currently allow self-enrollment (or will allow it in the future)');
564: }
565: $output .= '<span class="LC_nobreak">'.
566: '<label><input type="checkbox" name="showselfenroll" value="1" '.
567: $show_selfenroll_status.'/>'.$selfenroll_text.
568: '</label></span><br />';
569: if ($is_dc) {
570: my ($titlesref,$orderref) = &get_statustitles('filters');
571: my $showdetails_status;
572: if ($env{'form.showdetails'}) {
573: $showdetails_status = 'checked="checked" ';
574: }
575: my $showhidden_status;
576: if ($env{'form.showhidden'}) {
577: $showhidden_status = 'checked="checked" ';
578: }
579: my @currstatuses = &Apache::loncommon::get_env_multiple('form.showcounts');
580: my $dc_title = &Apache::lonnet::plaintext('dc');
581: my ($details_text,$hidden_text,$statusdisplay,$cellborder);
582: my $wasactivedisplay = 'none';
583: if ($env{'form.showdetails'}) {
584: $statusdisplay = 'block';
585: $cellborder = 'border-left: 1px solid;';
586: if (grep(/^Previous$/,@currstatuses)) {
587: $wasactivedisplay = 'block';
588: }
589: } else {
590: $statusdisplay = 'none';
591: $cellborder = 'border-left: 0px';
592: }
593: if ($env{'form.currcat_0'} eq 'communities::0') {
594: $details_text = &mt('Show full details for each community ([_1] only)',$dc_title);
595: $hidden_text = &mt('Include communities set to be hidden from catalog ([_1] only)',$dc_title);
596: } else {
597: $details_text = &mt('Show full details for each course ([_1] only)',$dc_title);
598: $hidden_text = &mt('Include courses set to be hidden from catalog ([_1] only)',$dc_title);
599: }
600: $output .= '<span class="LC_nobreak">'.
601: '<label><input type="checkbox" name="showhidden" value="1" '.
602: $showhidden_status.'/>'.$hidden_text.
603: '</label></span><br />'."\n".
604: '<span class="LC_nobreak">'.
605: '<label><input type="checkbox" name="showdetails" value="1" '.
606: $showdetails_status.'onclick="toggleStatuses();" />'.
607: $details_text.'</label></span></td>'."\n".
608: '<td id="statuscell" valign="top" style="'.$cellborder.'">'.
609: '<div id="statuschoice" style="display:'.$statusdisplay.'">';
610: if (ref($orderref) eq 'ARRAY') {
611: if (@{$orderref} > 0) {
612: foreach my $type (@{$orderref}) {
613: my $checked;
614: if (grep(/^\Q$type\E$/,@currstatuses)) {
615: $checked = ' checked="checked"';
616: }
617: my $title;
618: if (ref($titlesref) eq 'HASH') {
619: $title = $titlesref->{$type};
620: }
621: unless ($title) {
622: $title = &mt($type);
623: }
624: my $onclick;
625: if ($type eq 'Previous') {
626: $onclick = ' onclick="toggleWasActive();"';
627: }
628: $output .= '<span class="LC_nobreak">'.
629: '<label><input type="checkbox" id="counts_'.$type.'"'.
630: ' name="showcounts" value="'.$type.'"'.$checked.$onclick.
631: ' />'.$title.'</label></span>';
632: if ($type eq 'Previous') {
633: my %milestonetext = &Apache::lonlocal::texthash (
634: accessend => 'immediately prior to default end access date',
635: enrollend => 'immediately prior to end date for auto-enrollment',
636: date => 'immediately prior to specific date:',
637: );
638: my @statuses = &Apache::loncommon::get_env_multiple('form.showcounts');
639: $output .= '<span id="choosewasacctext">';
640: if ($checked) {
641: $output .= &get_wasactive_text();
642: }
643: $output .= '</span>'.
644: '<div id="choosewasactive" style="display:'.$wasactivedisplay.'">'.
645: '<table>';
646: my @milestones = ('accessend');
647: if (&Apache::lonnet::auto_run(undef,$codedom)) {
648: push(@milestones,'enrollend');
649: }
650: push(@milestones,'date');
651: foreach my $item (@milestones) {
652: my $checked;
653: if ($env{'form.state'} eq 'listing') {
654: if ($env{'form.wasactive'} eq $item) {
655: $checked = ' checked="checked"';
656: }
657: } elsif ($item eq 'accessend') {
658: $checked = ' checked="checked"';
659: }
660: $output .=
661: '<tr><td width="10"> </td><td>'.
662: '<span class="LC_nobreak"><label>'.
663: '<input type="radio" value="'.$item.'" name="wasactive"'.$checked.' />'.
664: $milestonetext{$item}.'</label></span>';
665: if ($item eq 'date') {
666: my $wasactiveon;
667: if (grep(/^Previous$/,@currstatuses)) {
668: $wasactiveon =
669: &Apache::lonhtmlcommon::get_date_from_form('wasactiveon');
670: } else {
671: $wasactiveon = 'now';
672: }
673: $output .= ' '.
674: &Apache::lonhtmlcommon::date_setter('coursecatalog',
675: 'wasactiveon',
676: $wasactiveon,
677: '','','',1,'',
678: '','',1);
679: }
680: $output .= '</td></tr>';
681: }
682: $output .= '</table></div>';
683: }
684: $output .= '<br />';
685: }
686: }
687: }
688: $output .= '</div></td>';
689: } else {
690: $output .= '</td>';
691: }
692: $output .= '</tr></table></fieldset></div>'.
693: '<div style="clear:both;margin:0;"></div>';
694: return $output;
695: }
696:
697: sub user_is_dc {
698: my ($codedom) = @_;
699: if (exists($env{'user.role.dc./'.$codedom.'/'})) {
700: my $livedc = 1;
701: my $now = time;
702: my ($start,$end)=split(/\./,$env{'user.role.dc./'.$codedom.'/'});
703: if ($start && $start>$now) { $livedc = 0; }
704: if ($end && $end <$now) { $livedc = 0; }
705: return $livedc;
706: }
707: return;
708: }
709:
710: sub get_statustitles {
711: my ($caller) = @_;
712: my @status_order = ('Active','Future','Previous');
713: my %status_title;
714: if ($caller eq 'filters') {
715: %status_title = &Apache::lonlocal::texthash(
716: Previous => 'Show count for past access',
717: Active => 'Show count for current student access',
718: Future => 'Show count for future student access',
719: );
720: if ($env{'form.currcat_0'} eq 'communities::0') {
721: $status_title{'Active'} = 'Show count for current member access';
722: $status_title{'Future'} = 'Show count for future member access';
723: }
724: } else {
725: %status_title = &Apache::lonlocal::texthash(
726: Previous => 'Previous access',
727: Active => 'Current access',
728: Future => 'Future access',
729: );
730: }
731: return (\%status_title,\@status_order);
732: }
733:
734: sub get_wasactive_text {
735: my $wasacctext = ' -- ';
736: if ($env{'form.currcat_0'} eq 'communities::0') {
737: $wasacctext .= &mt('where member access status was current ...');
738: } else {
739: $wasacctext .= &mt('where student access status was current ...');
740: }
741: return $wasacctext;
742: }
743:
744: sub search_official_courselist {
745: my ($domain,$numtitles,$codetitles) = @_;
746: my $instcode = &Apache::courseclassifier::instcode_search_str($domain,$numtitles,$codetitles);
747: my $showhidden;
748: if (&user_is_dc($domain)) {
749: $showhidden = $env{'form.showhidden'};
750: }
751: my %courses =
752: &Apache::lonnet::courseiddump($domain,'.',1,$instcode,'.','.',undef,undef,
753: 'Course',1,$env{'form.showselfenroll'},undef,
754: $showhidden,'coursecatalog');
755: return %courses;
756: }
757:
758: sub search_courselist {
759: my ($domain,$subcats) = @_;
760: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
761: my $filter = $env{'form.currcat_'.$cat_maxdepth};
762: if (($filter eq '') && ($cat_maxdepth > 0)) {
763: my $shallower = $cat_maxdepth - 1;
764: $filter = $env{'form.currcat_'.$shallower};
765: }
766: my %courses;
767: my $filterstr;
768: if ($filter ne '') {
769: if ($env{'form.withsubcats'}) {
770: if (ref($subcats) eq 'HASH') {
771: if (ref($subcats->{$filter}) eq 'ARRAY') {
772: $filterstr = join('&',@{$subcats->{$filter}});
773: if ($filterstr ne '') {
774: $filterstr = $filter.'&'.$filterstr;
775: }
776: } else {
777: $filterstr = $filter;
778: }
779: } else {
780: $filterstr = $filter;
781: }
782: } else {
783: $filterstr = $filter;
784: }
785: my ($showhidden,$typefilter);
786: if (&user_is_dc($domain)) {
787: $showhidden = $env{'form.showhidden'};
788: }
789: if ($env{'form.currcat_0'} eq 'communities::0') {
790: $typefilter = 'Community';
791: } else {
792: $typefilter = '.';
793: }
794: %courses =
795: &Apache::lonnet::courseiddump($domain,'.',1,'.','.','.',undef,undef,
796: $typefilter,1,$env{'form.showselfenroll'},
797: $filterstr,$showhidden,'coursecatalog');
798: }
799: return %courses;
800: }
801:
802: sub print_course_listing {
803: my ($domain,$numtitles,$trails,$allitems,$subcats,$codetitles) = @_;
804: my $output;
805: my %courses;
806: my $knownuser = &user_is_known();
807: my $details = $env{'form.coursenum'};
808: if (&user_is_dc($domain)) {
809: if ($env{'form.showdetails'}) {
810: $details = 1;
811: }
812: }
813: if ($env{'form.coursenum'} ne '') {
814: %courses = &Apache::lonnet::courseiddump($domain,'.',1,'.','.',
815: $env{'form.coursenum'},
816: undef,undef,'.',1);
817: if (keys(%courses) == 0) {
818: if ($env{'form.currcat_0'} eq 'communities::0') {
819: $output .= &mt('The courseID provided does not match a community in this domain.');
820: } else {
821: $output .= &mt('The courseID provided does not match a course in this domain.');
822: }
823: return $output;
824: }
825: } else {
826: if ($env{'form.currcat_0'} eq 'instcode::0') {
827: %courses = &search_official_courselist($domain,$numtitles,$codetitles);
828: } else {
829: %courses = &search_courselist($domain,$subcats);
830: }
831: if (keys(%courses) == 0) {
832: if ($env{'form.currcat_0'} eq 'communities::0') {
833: $output =
834: '<p class="LC_info">'
835: .&mt('No communities match the criteria you selected.')
836: .'</p>';
837: } else {
838: $output =
839: '<p class="LC_info">'
840: .&mt('No courses match the criteria you selected.')
841: .'</p>';
842: }
843: return $output;
844: }
845: if (($knownuser) && (!$env{'form.showdetails'}) && (!&user_is_dc($domain))) {
846: $output = '<b>'.&mt('Note for students:').'</b> '
847: .&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.')
848: .'<br /><br />';
849: }
850: }
851: my $now = time;
852: my %domconfig =
853: &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
854: $output .= &construct_data_table($knownuser,$domain,\%courses,$details,undef,
855: $now,\%domconfig,$trails,$allitems);
856: $output .= "\n".'<form name="linklaunch" method="post" action="">'.
857: '<input type="hidden" name="backto" value="coursecatalog" />'.
858: '<input type="hidden" name="courseid" value="" />'.
859: &Apache::lonhtmlcommon::echo_form_input(['catalogfilter','courseid']).'</form>';
860: return $output;
861: }
862:
863: sub construct_data_table {
864: my ($knownuser,$domain,$courses,$details,$usersections,$now,$domconfig,
865: $trails,$allitems) = @_;
866: my %sortname;
867: if (($details eq '') || ($env{'form.showdetails'})) {
868: $sortname{'Code'} = 'code';
869: $sortname{'Categories'} = 'cats';
870: $sortname{'Title'} = 'title';
871: $sortname{'Owner & Co-owner(s)'} = 'owner';
872: }
873: my $output = &Apache::loncommon::start_data_table().
874: &Apache::loncommon::start_data_table_header_row();
875: my @coltitles = ('Count');
876: if ($env{'form.currcat_0'} eq 'instcode::0') {
877: push(@coltitles,'Code');
878: } else {
879: push(@coltitles,'Categories');
880: }
881: push(@coltitles,('Sections','Crosslisted','Title','Owner & Co-owner(s)'));
882: if (ref($usersections) eq 'HASH') {
883: $coltitles[1] = 'Your Section';
884: }
885: foreach my $item (@coltitles) {
886: $output .= '<th>';
887: if (defined($sortname{$item})) {
888: $output .= '<a href="javascript:changeSort('."'$sortname{$item}'".')">'.&mt($item).'</a>';
889: } elsif ($item eq 'Count') {
890: $output .= ' ';
891: } else {
892: $output .= &mt($item);
893: }
894: $output .= '</th>';
895: }
896: my (@fields,%fieldtitles,$wasactiveon);
897: if ($knownuser) {
898: if ($details) {
899: if ($env{'form.currcat_0'} eq 'communities::0') {
900: $output .= '<th>'.&mt('Default Access Dates for Members').'</th>'.
901: '<th>'.&mt('Member Counts').'</th>';
902: } else {
903: $output .=
904: '<th>'.&mt('Default Access Dates for Students').'</th>'.
905: '<th>'.&mt('Student Counts').'</th>'.
906: '<th>'.&mt('Auto-enrollment of[_1]registered students','<br />').'</th>';
907: }
908: my ($titlesref,$orderref) = &get_statustitles();
909: my @statuses;
910: if (&user_is_dc($domain)) {
911: @statuses = &Apache::loncommon::get_env_multiple('form.showcounts');
912: if (grep(/^Previous$/,@statuses)) {
913: if ($env{'form.wasactive'} eq 'date') {
914: $wasactiveon =
915: &Apache::lonhtmlcommon::get_date_from_form('wasactiveon');
916: } else {
917: $wasactiveon = $env{'form.wasactive'};
918: }
919: }
920: if (ref($orderref) eq 'ARRAY') {
921: foreach my $status (@{$orderref}) {
922: if (grep(/^\Q$status\E$/,@statuses)) {
923: push(@fields,$status);
924: }
925: }
926: }
927: } else {
928: @fields = ('Active','Future');
929: }
930: foreach my $status (@fields) {
931: my $title;
932: if (ref($titlesref) eq 'HASH') {
933: $title = $titlesref->{$status};
934: }
935: unless ($title) {
936: $title = &mt($status);
937: }
938: $fieldtitles{$status} = $title;
939: }
940: } else {
941: $output .= '<th>'.&mt('Details').'</th>';
942: }
943: }
944: $output .= '<th>'.&mt('Self-enroll (if permitted)').'</th>';
945: &Apache::loncommon::end_data_table_header_row();
946: my (%numbers,%creditsum);
947: my ($showcredits,$defofficial,$defunofficial);
948: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
949: unless ($env{'form.currcat_0'} eq 'communities::0') {
950: if ($domdefaults{'officialcredits'} || $domdefaults{'unofficialcredits'}) {
951: $showcredits = 1;
952: $defofficial = $domdefaults{'officialcredits'};
953: $defunofficial = $domdefaults{'unofficialcredits'};
954: }
955: }
956: my %courseinfo = &build_courseinfo_hash($courses,$knownuser,$domain,$details,
957: $usersections,\@fields,\%fieldtitles,
958: $wasactiveon,\%numbers,\%creditsum,
959: $showcredits,$defofficial,$defunofficial);
960: my %Sortby;
961: foreach my $course (sort(keys(%{$courses}))) {
962: if ($env{'form.sortby'} eq 'code') {
963: push(@{$Sortby{$courseinfo{$course}{'code'}}},$course);
964: } elsif ($env{'form.sortby'} eq 'cats') {
965: push(@{$Sortby{$courseinfo{$course}{'categories'}}},$course);
966: } elsif ($env{'form.sortby'} eq 'owner') {
967: push(@{$Sortby{$courseinfo{$course}{'ownerlastnames'}}},$course);
968: } else {
969: my $clean_title = $courseinfo{$course}{'title'};
970: $clean_title =~ s/\W+//g;
971: if ($clean_title eq '') {
972: $clean_title = $courseinfo{$course}{'title'};
973: }
974: push(@{$Sortby{$clean_title}},$course);
975: }
976: }
977: my @sorted_courses;
978: if (($env{'form.sortby'} eq 'code') || ($env{'form.sortby'} eq 'owner') ||
979: ($env{'form.sortby'} eq 'cats')) {
980: @sorted_courses = sort(keys(%Sortby));
981: } else {
982: @sorted_courses = sort { lc($a) cmp lc($b) } (keys(%Sortby));
983: }
984: my $count = 1;
985: my $totalsec = 0;
986: foreach my $item (@sorted_courses) {
987: foreach my $course (@{$Sortby{$item}}) {
988: $output.=&Apache::loncommon::start_data_table_row();
989: $output.=&courseinfo_row($courseinfo{$course},$knownuser,$details,
990: \$count,$now,$course,$trails,$allitems,\%numbers);
991: $output.=&Apache::loncommon::end_data_table_row();
992: }
993: }
994: if (($knownuser) && ($count > 1) && $env{'form.showdetails'}) {
995: if (&user_is_dc($domain)) {
996: my %lt = &Apache::lonlocal::texthash (
997: 'Active' => 'Total current students',
998: 'Future' => 'Total future students',
999: 'Previous' => 'Total previous students',
1000: 'courses' => 'Total unique codes and courses without codes',
1001: 'sections' => 'Total sections',
1002: 'xlists' => 'Total cross-listings',
1003: );
1004: if ($showcredits) {
1005: $lt{'cr_Active'} = &mt('Total current student credit hours');
1006: $lt{'cr_Future'} = &mt('Total future student credit hours');
1007: $lt{'cr_Previous'} = &mt('Total previous student credit hours');
1008: }
1009: if ($env{'form.currcat_0'} eq 'communities::0') {
1010: $lt{'courses'} = &mt('Total communities');
1011: $lt{'Active'} = &mt('Total current members');
1012: $lt{'Future'} = &mt('Total future members');
1013: $lt{'Previous'} = &mt('Total previous members');
1014: }
1015: my $colspan = 8;
1016: if ($showcredits) {
1017: $colspan = 4;
1018: }
1019: $output .= '<tr class="LC_footer_row">'.
1020: '<td colspan="2"> </td>'.
1021: '<td colspan="'.$colspan.'">'.
1022: '<table border="0">';
1023: foreach my $item ('courses','sections','xlists') {
1024: $output .= '<tr>'.
1025: '<td>'.$lt{$item}.'</td><td> </td>'.
1026: '<td align="right">'.$numbers{$item}.'</td>'.
1027: '</tr>'."\n";
1028: }
1029: if (@fields > 0) {
1030: foreach my $status (@fields) {
1031: $output .= '<tr>'.
1032: '<td>'.$lt{$status}.'</td><td> </td>'.
1033: '<td align="right">'.$numbers{$status}.'</td>'.
1034: '</tr>'."\n";
1035: }
1036: }
1037: $output .= '</table></td>';
1038: if ($showcredits) {
1039: $output .= '<td colspan="'.$colspan.'" valign="bottom"><table>';
1040: foreach my $status (@fields) {
1041: $output .= '<tr>'.
1042: '<td>'.$lt{'cr_'.$status}.'</td><td> </td>'.
1043: '<td align="right">'.$creditsum{$status}.'</td></tr>';
1044: }
1045: $output .= '</table></td></tr>';
1046: }
1047: }
1048: }
1049: $output .= &Apache::loncommon::end_data_table();
1050: return $output;
1051: }
1052:
1053: sub build_courseinfo_hash {
1054: my ($courses,$knownuser,$domain,$details,$usersections,$fields,$fieldtitles,
1055: $wasactiveon,$numbers,$creditsum,$showcredits,$defofficial,$defunofficial) = @_;
1056: my %courseinfo;
1057: my $now = time;
1058: my $gettotals;
1059: if ((keys(%{$courses}) > 0) && (&user_is_dc($domain)) && ($details)) {
1060: $gettotals = 1;
1061: }
1062: my (%uniquecodes,$nocodes,$defcreds);
1063: foreach my $course (keys(%{$courses})) {
1064: my $descr;
1065: if (ref($courses->{$course}) eq 'HASH') {
1066: $descr = $courses->{$course}{'description'};
1067: }
1068: my $cleandesc=&HTML::Entities::encode($descr,'<>&"');
1069: $cleandesc=~s/'/\\'/g;
1070: $cleandesc =~ s/^\s+//;
1071: my ($cdom,$cnum)=split(/\_/,$course);
1072: my ($instcode,$singleowner,$ttype,$selfenroll_types,
1073: $selfenroll_start,$selfenroll_end,@owners,%ownernames,$categories);
1074: if (ref($courses->{$course}) eq 'HASH') {
1075: $descr = $courses->{$course}{'description'};
1076: $instcode = $courses->{$course}{'inst_code'};
1077: $singleowner = $courses->{$course}{'owner'};
1078: $ttype = $courses->{$course}{'type'};
1079: $selfenroll_types = $courses->{$course}{'selfenroll_types'};
1080: $selfenroll_start = $courses->{$course}{'selfenroll_start_date'};
1081: $selfenroll_end = $courses->{$course}{'selfenroll_end_date'};
1082: $categories = $courses->{$course}{'categories'};
1083: push(@owners,$singleowner);
1084: if ($courses->{$course}{'co-owners'} ne '') {
1085: foreach my $item (split(/,/,$courses->{$course}{'co-owners'})) {
1086: push(@owners,$item);
1087: }
1088: }
1089: }
1090: if ($instcode ne '') {
1091: $uniquecodes{$instcode} = 1;
1092: } else {
1093: $nocodes ++;
1094: }
1095: foreach my $owner (@owners) {
1096: my ($ownername,$ownerdom);
1097: if ($owner =~ /:/) {
1098: ($ownername,$ownerdom) = split(/:/,$owner);
1099: } else {
1100: $ownername = $owner;
1101: if ($owner ne '') {
1102: $ownerdom = $cdom;
1103: }
1104: }
1105: if ($ownername ne '' && $ownerdom ne '') {
1106: my %namehash=&Apache::loncommon::getnames($ownername,$ownerdom);
1107: $ownernames{$ownername.':'.$ownerdom} = \%namehash;
1108: }
1109: }
1110: $courseinfo{$course}{'cdom'} = $cdom;
1111: $courseinfo{$course}{'cnum'} = $cnum;
1112: $courseinfo{$course}{'code'} = $instcode;
1113: my @lastnames;
1114: foreach my $owner (keys(%ownernames)) {
1115: if (ref($ownernames{$owner}) eq 'HASH') {
1116: push(@lastnames,$ownernames{$owner}{'lastname'});
1117: }
1118: }
1119: $courseinfo{$course}{'ownerlastnames'} = join(', ',sort(@lastnames));
1120: $courseinfo{$course}{'title'} = $cleandesc;
1121: $courseinfo{$course}{'owner'} = $singleowner;
1122: $courseinfo{$course}{'selfenroll_types'} = $selfenroll_types;
1123: $courseinfo{$course}{'selfenroll_start'} = $selfenroll_start;
1124: $courseinfo{$course}{'selfenroll_end'} = $selfenroll_end;
1125: $courseinfo{$course}{'categories'} = $categories;
1126:
1127: my %coursehash = &Apache::lonnet::dump('environment',$cdom,$cnum);
1128: my @classids;
1129: my @crosslistings;
1130: my ($seclist,$numsec) =
1131: &identify_sections($coursehash{'internal.sectionnums'});
1132: $courseinfo{$course}{'seclist'} = $seclist;
1133: my ($xlist_items,$numxlist) =
1134: &identify_sections($coursehash{'internal.crosslistings'});
1135: if (ref($numbers) eq 'HASH') {
1136: $numbers->{'sections'} += $numsec;
1137: $numbers->{'xlists'} += $numxlist;
1138: }
1139: my $showsyllabus = 1; # default is to include a syllabus link
1140: if (defined($coursehash{'showsyllabus'})) {
1141: $showsyllabus = $coursehash{'showsyllabus'};
1142: }
1143: $courseinfo{$course}{'showsyllabus'} = $showsyllabus;
1144: if ($showcredits) {
1145: if ($coursehash{'internal.defaultcredits'}) {
1146: $courseinfo{$course}{'defaultcredits'} = $coursehash{'internal.defaultcredits'};
1147: } elsif ($instcode ne '') {
1148: $courseinfo{$course}{'defaultcredits'} = $defofficial;
1149: } else {
1150: $courseinfo{$course}{'defaultcredits'} = $defunofficial;
1151: }
1152: $defcreds = $courseinfo{$course}{'defaultcredits'};
1153: }
1154: if (((defined($env{'form.coursenum'}) && ($cnum eq $env{'form.coursenum'}))) ||
1155: ($knownuser && ($details == 1))) {
1156: my $milestone;
1157: if ($wasactiveon eq 'accessend') {
1158: if ($coursehash{'default_enrollment_end_date'}) {
1159: $milestone = $coursehash{'default_enrollment_end_date'};
1160: } else {
1161: $milestone = time;
1162: }
1163: } elsif ($wasactiveon eq 'enrollend') {
1164: if ($coursehash{'internal.autoend'}) {
1165: $milestone = $coursehash{'internal.autoend'};
1166: } else {
1167: $milestone = time;
1168: }
1169: } else {
1170: $milestone = $wasactiveon;
1171: }
1172: $courseinfo{$course}{'counts'} =
1173: &count_students($cdom,$cnum,$numsec,$fields,$fieldtitles,$gettotals,
1174: $numbers,$creditsum,$showcredits,$defcreds,$milestone);
1175: if ($instcode ne '') {
1176: $courseinfo{$course}{'autoenrollment'} =
1177: &autoenroll_info(\%coursehash,$now,$seclist,$xlist_items,
1178: $instcode,\@owners,$cdom,$cnum);
1179: }
1180: my $startaccess = '';
1181: my $endaccess = '';
1182: my $accessdates;
1183: if ( defined($coursehash{'default_enrollment_start_date'}) ) {
1184: $startaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_start_date'});
1185: }
1186: if ( defined($coursehash{'default_enrollment_end_date'}) ) {
1187: $endaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_end_date'});
1188: if ($coursehash{'default_enrollment_end_date'} == 0) {
1189: $endaccess = &mt('No ending date');
1190: }
1191: }
1192: if ($startaccess) {
1193: $accessdates .= '<i>'.&mt('From:[_1]','</i> '.$startaccess).'<br />';
1194: }
1195: if ($endaccess) {
1196: $accessdates .= '<i>'.&mt('To:[_1]','</i> '.$endaccess).'<br />';
1197: }
1198: if (($selfenroll_types ne '') &&
1199: ($selfenroll_end > 0 && $selfenroll_end > $now)) {
1200: my ($selfenroll_start_access,$selfenroll_end_access);
1201: if (($coursehash{'default_enrollment_start_date'} ne
1202: $coursehash{'internal.selfenroll_start_access'}) ||
1203: ($coursehash{'default_enrollment_end_date'} ne
1204: $coursehash{'internal.selfenroll_end_access'})) {
1205: if ( defined($coursehash{'internal.selfenroll_start_access'}) ) {
1206: $selfenroll_start_access = &Apache::lonlocal::locallocaltime($coursehash{'internal.selfenroll_start_access'});
1207: }
1208: if ( defined($coursehash{'default_enrollment_end_date'}) ) {
1209: $selfenroll_end_access = &Apache::lonlocal::locallocaltime($coursehash{'internal.selfenroll_end_access'});
1210: if ($coursehash{'internal.selfenroll_end_access'} == 0) {
1211: $selfenroll_end_access = &mt('No ending date');
1212: }
1213: }
1214: if ($selfenroll_start_access || $selfenroll_end_access) {
1215: $accessdates .= '<br/><br /><i>'.&mt('Self-enrollers:').'</i><br />';
1216: if ($selfenroll_start_access) {
1217: $accessdates .= '<i>'.&mt('From:[_1]','</i> '.$selfenroll_start_access).'<br />';
1218: }
1219: if ($selfenroll_end_access) {
1220: $accessdates .= '<i>'.&mt('To:[_1]','</i> '.$selfenroll_end_access).'<br />';
1221: }
1222: }
1223: }
1224: }
1225: $courseinfo{$course}{'access'} = $accessdates;
1226: }
1227: if ($xlist_items eq '') {
1228: $xlist_items = &mt('No');
1229: }
1230: $courseinfo{$course}{'xlist'} = $xlist_items;
1231: }
1232: if (ref($numbers) eq 'HASH') {
1233: $numbers->{'courses'} = $nocodes + scalar(keys(%uniquecodes));
1234: }
1235: return %courseinfo;
1236: }
1237:
1238: sub count_students {
1239: my ($cdom,$cnum,$numsec,$fieldsref,$titlesref,$getcounts,$numbers,$creditsum,
1240: $showcredits,$defcreds,$wasactiveon) = @_;
1241: my $countslist = '<span class="LC_nobreak">'.
1242: &mt('[quant,_1,section,sections,No sections]',$numsec).'</span>';
1243: my (@fields,%titles,$showexpired);
1244: if ((ref($fieldsref) eq 'ARRAY') && (ref($titlesref) eq 'HASH') &&
1245: (ref($numbers) eq 'HASH')) {
1246: @fields = @{$fieldsref};
1247: %titles = %{$titlesref};
1248: if (grep(/^Previous$/,@fields)) {
1249: $showexpired = 1;
1250: }
1251: } else {
1252: return;
1253: }
1254: my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cnum);
1255: my (%student_count,%credit_count);
1256: %student_count = (
1257: Active => 0,
1258: Future => 0,
1259: Previous => 0,
1260: );
1261: if ($showcredits) {
1262: %credit_count = (
1263: Active => 0,
1264: Future => 0,
1265: Previous => 0,
1266: );
1267: }
1268: my %idx;
1269: $idx{'status'} = &Apache::loncoursedata::CL_STATUS();
1270: $idx{'end'} = &Apache::loncoursedata::CL_END();
1271: $idx{'credits'} = &Apache::loncoursedata::CL_CREDITS();
1272: while (my ($student,$data) = each(%$classlist)) {
1273: my $status = $data->[$idx{'status'}];
1274: my $credits = $data->[$idx{'credits'}];
1275: if ($credits eq '') {
1276: $credits = $defcreds;
1277: }
1278: if ($status eq 'Expired') {
1279: if (($showexpired) &&
1280: ($data->[$idx{'end'}] >= $wasactiveon)) {
1281: $student_count{'Previous'} ++;
1282: if ($showcredits) {
1283: $credit_count{'Previous'} += $credits;
1284: }
1285: }
1286: } else {
1287: $student_count{$status} ++;
1288: if ($showcredits) {
1289: $credit_count{$status} += $credits;
1290: }
1291: }
1292: }
1293: if (@fields) {
1294: $countslist .= ':<br />';
1295: foreach my $status (@fields) {
1296: $countslist .= '<span class="LC_nobreak">'.$titles{$status}.': '.
1297: $student_count{$status}.'</span><br />';
1298: $numbers->{$status} += $student_count{$status};
1299: if ($showcredits) {
1300: $creditsum->{$status} += $credit_count{$status};
1301: }
1302: }
1303: }
1304: return $countslist;
1305: }
1306:
1307: sub courseinfo_row {
1308: my ($info,$knownuser,$details,$countref,$now,$course,$trails,$allitems,$numbers) = @_;
1309: my ($cdom,$cnum,$title,$ownerlast,$code,$owner,$seclist,$xlist_items,
1310: $accessdates,$showsyllabus,$counts,$autoenrollment,$output,$categories);
1311: if (ref($info) eq 'HASH') {
1312: $cdom = $info->{'cdom'};
1313: $cnum = $info->{'cnum'};
1314: $title = $info->{'title'};
1315: $ownerlast = $info->{'ownerlastnames'};
1316: $code = $info->{'code'};
1317: $owner = $info->{'owner'};
1318: $seclist = $info->{'seclist'};
1319: $xlist_items = $info->{'xlist'};
1320: $accessdates = $info->{'access'};
1321: $counts = $info->{'counts'};
1322: $autoenrollment = $info->{'autoenrollment'};
1323: $showsyllabus = $info->{'showsyllabus'};
1324: $categories = $info->{'categories'};
1325: } else {
1326: $output = '<td colspan="8">'.&mt('No information available for [_1].',
1327: $code).'</td>';
1328: return $output;
1329: }
1330: $output .= '<td>'.$$countref.'</td>';
1331: if ($env{'form.currcat_0'} eq 'instcode::0') {
1332: $output .= '<td>'.$code.'</td>';
1333: } else {
1334: my ($categorylist,@cats);
1335: if ($categories ne '') {
1336: @cats = split('&',$categories);
1337: }
1338: if ((ref($trails) eq 'ARRAY') && (ref($allitems) eq 'HASH')) {
1339: my @categories = map { $trails->[$allitems->{$_}]; } @cats;
1340: $categorylist = join('<br />',@categories);
1341: }
1342: if ($categorylist eq '') {
1343: $categorylist = ' ';
1344: }
1345: $output .= '<td>'.$categorylist.'</td>';
1346: }
1347: $output .= '<td>'.$seclist.'</td>'.
1348: '<td>'.$xlist_items.'</td>'.
1349: '<td>'.$title.' <font size="-2">';
1350: if ($showsyllabus) {
1351: $output .= '<a href="javascript:ToSyllabus('."'$cdom','$cnum'".')">'.&mt('Syllabus').'</a>';
1352: } else {
1353: $output .= ' ';
1354: }
1355: $output .= '</font></td>'.
1356: '<td>'.$ownerlast.'</td>';
1357: if ($knownuser) {
1358: if ($details) {
1359: $output .=
1360: '<td>'.$accessdates.'</td>'.
1361: '<td>'.$counts.'</td>';
1362: unless ($env{'form.currcat_0'} eq 'communities::0') {
1363: $output .= '<td>'.$autoenrollment.'</td>';
1364: }
1365: } else {
1366: $output .= "<td><a href=\"javascript:setCourseId('$cnum')\">".&mt('Show more details').'</a></td>';
1367: }
1368: }
1369: my $selfenroll;
1370: if ($info->{'selfenroll_types'}) {
1371: my $showstart = &Apache::lonlocal::locallocaltime($info->{'selfenroll_start'});
1372: my $showend = &Apache::lonlocal::locallocaltime($info->{'selfenroll_end'});
1373: if (($info->{'selfenroll_end'} > 0) && ($info->{'selfenroll_end'} > $now)) {
1374: if (($info->{'selfenroll_start'} > 0) && ($info->{'selfenroll_start'} > $now)) {
1375: $output .= '<td>'.&mt('Starts: [_1]','<span class="LC_cusr_emph">'.$showstart.'</span>').'<br />'.&mt('Ends: [_1]','<span class="LC_cusr_emph">'.$showend.'</span>').'</td>';
1376: } else {
1377: $output .= '<td><a href="javascript:ToSelfenroll('."'$course'".')">'.&mt('Enroll in course').'</a><br />';
1378: if ($info->{'selfenroll_end'} == 0) {
1379: $output .= &mt('Available permanently');
1380: } elsif ($info->{'selfenroll_end'} > $now) {
1381: $output .= &mt('Self-enrollment ends: [_1]','<span class="LC_cusr_emph">'.$showend.'</span>');
1382: }
1383: $output .= '</td>';
1384: }
1385: $selfenroll = 1;
1386: }
1387: }
1388: if (!$selfenroll) {
1389: $output .= '<td> </td>';
1390: }
1391: $$countref ++;
1392: return $output;
1393: }
1394:
1395: sub identify_sections {
1396: my ($seclist) = @_;
1397: my @secnums;
1398: if ($seclist =~ /,/) {
1399: my @sections = split(/,/,$seclist);
1400: foreach my $sec (@sections) {
1401: $sec =~ s/:[^:]*$//;
1402: push(@secnums,$sec);
1403: }
1404: } else {
1405: if ($seclist =~ m/^([^:]+):/) {
1406: my $sec = $1;
1407: if (!grep(/^\Q$sec\E$/,@secnums)) {
1408: push(@secnums,$sec);
1409: }
1410: }
1411: }
1412: @secnums = sort {$a <=> $b} @secnums;
1413: $seclist = join(', ',@secnums);
1414: my $numsec = @secnums;
1415: return ($seclist,$numsec);
1416: }
1417:
1418: sub get_valid_classes {
1419: my ($seclist,$xlist_items,$crscode,$owners,$cdom,$cnum) = @_;
1420: my $response;
1421: my %validations;
1422: @{$validations{'sections'}} = ();
1423: @{$validations{'xlists'}} = ();
1424: my $totalitems = 0;
1425: if ($seclist) {
1426: foreach my $sec (split(/, /,$seclist)) {
1427: my $class = $crscode.$sec;
1428: if (&Apache::lonnet::auto_validate_class_sec($cdom,$cnum,$owners,
1429: $class) eq 'ok') {
1430: if (!grep(/^\Q$sec$\E/,@{$validations{'sections'}})) {
1431: push(@{$validations{'sections'}},$sec);
1432: $totalitems ++;
1433: }
1434: }
1435: }
1436: }
1437: if ($xlist_items) {
1438: foreach my $item (split(/, /,$xlist_items)) {
1439: if (&Apache::lonnet::auto_validate_class_sec($cdom,$cnum,$owners,
1440: $item) eq 'ok') {
1441: if (!grep(/^\Q$item$\E/,@{$validations{'xlists'}})) {
1442: push(@{$validations{'xlists'}},$item);
1443: $totalitems ++;
1444: }
1445: }
1446: }
1447: }
1448: if ($totalitems > 0) {
1449: if (@{$validations{'sections'}}) {
1450: $response = &mt('Sections:').' '.
1451: join(', ',@{$validations{'sections'}}).'<br />';
1452: }
1453: if (@{$validations{'xlists'}}) {
1454: $response .= &mt('Courses:').' '.
1455: join(', ',@{$validations{'xlists'}});
1456: }
1457: }
1458: return $response;
1459: }
1460:
1461: sub autoenroll_info {
1462: my ($coursehash,$now,$seclist,$xlist_items,$code,$owners,$cdom,$cnum) = @_;
1463: my $autoenrolldates = &mt('Not enabled');
1464: if (defined($coursehash->{'internal.autoadds'}) && $coursehash->{'internal.autoadds'} == 1) {
1465: my ($autostart,$autoend);
1466: if ( defined($coursehash->{'internal.autostart'}) ) {
1467: $autostart = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autostart'});
1468: }
1469: if ( defined($coursehash->{'internal.autoend'}) ) {
1470: $autoend = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autoend'});
1471: }
1472: if ($coursehash->{'internal.autostart'} > $now) {
1473: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
1474: $autoenrolldates = &mt('Not enabled');
1475: } else {
1476: my $valid_classes =
1477: &get_valid_classes($seclist,$xlist_items,$code,
1478: $owners,$cdom,$cnum);
1479: if ($valid_classes ne '') {
1480: $autoenrolldates = &mt('Not enabled').'<br />'
1481: .&mt('Starts: [_1]',$autostart)
1482: .'<br />'.$valid_classes;
1483: }
1484: }
1485: } else {
1486: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
1487: $autoenrolldates = &mt('Not enabled').'<br />'
1488: .&mt('Ended: [_1]',$autoend);
1489: } else {
1490: my $valid_classes = &get_valid_classes($seclist,$xlist_items,
1491: $code,$owners,$cdom,$cnum);
1492: if ($valid_classes ne '') {
1493: $autoenrolldates = &mt('Currently enabled').'<br />'.
1494: $valid_classes;
1495: }
1496: }
1497: }
1498: }
1499: return $autoenrolldates;
1500: }
1501:
1502: sub user_is_known {
1503: my $known = 0;
1504: if ($env{'user.name'} ne '' && $env{'user.name'} ne 'public'
1505: && $env{'user.domain'} ne '' && $env{'user.domain'} ne 'public') {
1506: $known = 1;
1507: }
1508: return $known;
1509: }
1510:
1511: 1;
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to coursecatalog.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface