1: # The LearningOnline Network with CAPA
2: # Handler for displaying the course catalog interface
3: #
4: # $Id: coursecatalog.pm,v 1.78 2014/01/15 18:49:19 bisitz 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: $env{'form.showdom'} = &LONCAPA::clean_domain($env{'form.showdom'});
70: if (&Apache::lonnet::domain($env{'form.showdom'}) ne '') {
71: $codedom = $env{'form.showdom'};
72: } else {
73: $env{'form.showdom'} = '';
74: }
75: }
76: my $domdesc = &Apache::lonnet::domain($codedom,'description');
77: &Apache::lonhtmlcommon::clear_breadcrumbs();
78:
79: if ($env{'form.catalog_maxdepth'} ne '') {
80: $env{'form.catalog_maxdepth'} =~ s{\D}{}g;
81: }
82:
83: my %domconfig =
84: &Apache::lonnet::get_dom('configuration',['coursecategories'],$codedom);
85: my (@cats,@trails,%allitems,%idx,@jsarray,%subcathash,$cathash);
86: if (ref($domconfig{'coursecategories'}) eq 'HASH') {
87: $cathash = $domconfig{'coursecategories'}{'cats'};
88: } else {
89: $cathash = {};
90: }
91: my $subcats;
92: if ($env{'form.withsubcats'}) {
93: $subcats = \%subcathash;
94: }
95: &Apache::loncommon::extract_categories($cathash,\@cats,\@trails,\%allitems,
96: \%idx,\@jsarray,$subcats);
97: my ($numtitles,@codetitles);
98: if ($env{'form.coursenum'} ne '' && &user_is_known()) {
99: &course_details($r,$codedom,$formname,$domdesc,\@trails,\%allitems,\@codetitles);
100: } else {
101: my ($catlinks,$has_subcats,$selitem) = &category_breadcrumbs($codedom,@cats);
102: my $wasacctext = &get_wasactive_text();
103: my $catjs = <<"ENDSCRIPT";
104:
105: function setCatDepth(depth) {
106: document.coursecats.catalog_maxdepth.value = depth;
107: if (depth == '') {
108: document.coursecats.currcat_0.value = '';
109: }
110: document.coursecats.submit();
111: return;
112: }
113:
114: function changeSort(caller) {
115: document.$formname.sortby.value = caller;
116: document.$formname.submit();
117: }
118:
119: function setCourseId(caller) {
120: document.$formname.coursenum.value = caller;
121: document.$formname.submit();
122: }
123:
124: ENDSCRIPT
125: $catjs .= &courselink_javascript();
126: if (&user_is_dc($codedom)) {
127: $catjs .= <<ENDTOGGJS
128:
129: function toggleStatuses() {
130: if (document.$formname.showdetails.checked) {
131: document.getElementById('statuschoice').style.display='block';
132: document.getElementById('statuscell').style.borderLeft='1px solid';
133: } else {
134: document.getElementById('statuschoice').style.display='none';
135: document.getElementById('statuscell').style.borderLeft='0px';
136: }
137: return;
138: }
139:
140: function toggleWasActive() {
141: if (document.getElementById('counts_Previous')) {
142: if (document.getElementById('counts_Previous').checked) {
143: document.getElementById('choosewasactive').style.display='block';
144: document.getElementById('choosewasacctext').innerHTML = '$wasacctext';
145: } else {
146: document.getElementById('choosewasactive').style.display='none';
147: document.getElementById('choosewasacctext').innerHTML = '';
148: }
149: }
150: return;
151: }
152:
153: ENDTOGGJS
154: }
155: if ($env{'form.currcat_0'} eq 'instcode::0') {
156: $numtitles = &instcode_course_selector($r,$codedom,$formname,$domdesc,
157: $catlinks,$catjs,\@codetitles);
158: if ($env{'form.state'} eq 'listing') {
159: $r->print(&print_course_listing($codedom,$numtitles,undef,undef,undef,
160: \@codetitles));
161: }
162: } else {
163: my (%add_entries);
164: my ($currdepth,$deeper) = &get_depth_values();
165: if ($selitem) {
166: my $alert = &mt('Choose a subcategory to display');
167: if (!$deeper) {
168: $alert = &mt('Choose a category to display');
169: }
170: $catjs .= <<ENDJS;
171: function check_selected() {
172: if (document.coursecats.$selitem.options[document.coursecats.$selitem.selectedIndex].value == "") {
173: alert('$alert');
174: return false;
175: }
176: }
177: ENDJS
178: }
179: $catjs = '<script type="text/javascript">'."\n".$catjs."\n".'</script>';
180: &cat_header($r,$codedom,$catjs,\%add_entries,$catlinks);
181: if ($env{'form.currcat_0'} ne '') {
182: $r->print('<form name="'.$formname.
183: '" method="post" action="/adm/coursecatalog">'.
184: &additional_filters($codedom,$has_subcats)."\n");
185: $r->print('<input type="hidden" name="catalog_maxdepth" value="'.
186: $deeper.'" />'."\n");
187: for (my $i=0; $i<$deeper; $i++) {
188: $r->print('<input type="hidden" name="currcat_'.$i.'" value="'.$env{'form.currcat_'.$i}.'" />'."\n");
189: }
190: my $display_button;
191: if ($env{'form.currcat_0'} eq 'communities::0') {
192: $display_button = &mt('Display communities');
193: } else {
194: $display_button = &mt('Display courses');
195: }
196: $r->print('<input type="hidden" name="coursenum" value="" />'."\n".
197: '<input type="hidden" name="sortby" value="" />'."\n".
198: '<input type="hidden" name="state" value="listing" />'."\n".
199: '<input type="hidden" name="showdom" value="'.
200: $env{'form.showdom'}.'" />'.
201: '<input type="submit" name="catalogfilter" value="'.
202: $display_button.'" /></form><br /><br />');
203: }
204: if ($env{'form.state'} eq 'listing') {
205: $r->print(&print_course_listing($codedom,undef,\@trails,\%allitems,$subcats,\@codetitles));
206: }
207: }
208: }
209: $r->print('<br />'.&Apache::loncommon::end_page());
210: return OK;
211: }
212:
213: sub course_details {
214: my ($r,$codedom,$formname,$domdesc,$trails,$allitems,$codetitles) = @_;
215: my $output;
216: my %add_entries = (topmargin => "0",
217: marginheight => "0",);
218: my $js = '<script type="text/javascript">'."\n".
219: &courselink_javascript().'</script>'."\n";
220: my $start_page =
221: &Apache::loncommon::start_page('Course/Community Catalog',$js,
222: {'add_entries' => \%add_entries, });
223: $r->print($start_page);
224: if ($env{'form.numtitles'} > 0) {
225: &Apache::lonhtmlcommon::add_breadcrumb
226: ({href=>"/adm/coursecatalog",
227: text=>"Course/Community Catalog"});
228: }
229: my $brtextone = 'Course listing';
230: my $brtexttwo = 'Course details';
231: if ($env{'form.currcat_0'} eq 'communities::0') {
232: $brtextone = 'Community listing';
233: $brtexttwo = 'Community details';
234: }
235: &Apache::lonhtmlcommon::add_breadcrumb
236: ({href=>"javascript:document.$formname.submit()",
237: text=>$brtextone},
238: {text=>$brtexttwo});
239: $r->print(
240: &Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog').
241: '<h2>'.
242: (($env{'form.currcat_0'} eq 'communities::0') ?
243: &mt('Detailed community information:') :
244: &mt('Detailed course information:')).
245: '</h2>'.
246: &print_course_listing($codedom,undef,$trails,$allitems,undef,$codetitles).
247: '<br />'.
248: '<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
249: &Apache::lonhtmlcommon::actionbox([
250: '<a href = "javascript:document.coursecatalog.submit()">'.
251: (($env{'form.currcat_0'} eq 'communities::0') ?
252: &mt('Back to community listing') : &mt('Back to course listing')).
253: '</a>'
254: ]).
255: &Apache::lonhtmlcommon::echo_form_input(['coursenum','catalogfilter',
256: 'showdetails','courseid']).
257: '</form>');
258: return;
259: }
260:
261: sub courselink_javascript {
262: return <<"END";
263:
264: function ToSyllabus(cdom,cnum) {
265: if (cdom == '' || cdom == null) {
266: return;
267: }
268: if (cnum == '' || cnum == null) {
269: return;
270: }
271: document.linklaunch.action = "/public/"+cdom+"/"+cnum+"/syllabus";
272: document.linklaunch.submit();
273: }
274:
275: function ToSelfenroll(courseid) {
276: if (courseid == '') {
277: return;
278: }
279: document.linklaunch.action = "/adm/selfenroll";
280: document.linklaunch.courseid.value = courseid;
281: document.linklaunch.submit();
282: }
283:
284: END
285: }
286:
287: sub instcode_course_selector {
288: my ($r,$codedom,$formname,$domdesc,$catlinks,$catjs,$codetitles) = @_;
289: my %coursecodes = ();
290: my %codes = ();
291: my %cat_titles = ();
292: my %cat_order = ();
293: my %cat_items;
294: my $caller = 'global';
295: my $format_reply;
296: my %add_entries = (topmargin => "0",
297: marginheight => "0",);
298: my ($jscript,$totcodes,$numtitles,$lasttitle) =
299: &Apache::courseclassifier::instcode_selectors_data($codedom,$formname,
300: \%cat_items,$codetitles,\%cat_titles,\%cat_order);
301: my $js = '<script type"text/javascript">'."\n$jscript\n$catjs\n".
302: '</script>';
303: if ($totcodes) {
304: if (($env{'form.state'} eq 'listing') && ($numtitles > 0)) {
305: $add_entries{'onLoad'} = 'setElements();';
306: }
307: if (&user_is_dc($codedom)) {
308: $add_entries{'onLoad'} .= ' toggleStatuses();toggleWasActive();'
309: }
310: &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles);
311: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
312: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
313: '<input type="hidden" name="catalog_maxdepth" value="'.$cat_maxdepth.'" />'."\n".
314: '<input type="hidden" name="showdom" value="'.$env{'form.showdom'}.'" />'."\n".
315: '<input type="hidden" name="currcat_0" value="instcode::0" />'.
316: &additional_filters($codedom));
317: if ($numtitles > 0) {
318: $r->print('<b>'.&mt('Choose which course(s) to list.').'</b><br />'.
319: &Apache::courseclassifier::build_instcode_selectors($numtitles,
320: $lasttitle,\%cat_items,$codetitles,\%cat_titles,\%cat_order));
321: }
322: $r->print('<input type="hidden" name="coursenum" value="" />'."\n".
323: '<input type="hidden" name="sortby" value="" />'."\n".
324: '<input type="hidden" name="state" value="listing" />'."\n".
325: '<input type="submit" name="catalogfilter" value="'.
326: &mt('Display courses').'" />'.
327: '<input type="hidden" name="numtitles" value="'.$numtitles.
328: '" /></form><br /><br />');
329: } else {
330: $js = '<script type"text/javascript">'."\n$catjs\n".'</script>';
331: &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles);
332: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
333: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
334: '<input type="hidden" name="catalog_maxdepth" value="'.$cat_maxdepth.'" />'.
335: '<input type="hidden" name="showdom" value="'.$env{'form.showdom'}.'" />'.
336: '<input type="hidden" name="currcat_0" value="instcode::0" />');
337: $r->print('<br />'.&mt('No official courses to display for [_1].',$domdesc).'</form>');
338: }
339: return $numtitles;
340: }
341:
342: sub cat_header {
343: my ($r,$codedom,$js,$add_entries,$catlinks,$numtitles) = @_;
344: my $start_page =
345: &Apache::loncommon::start_page('Course/Community Catalog',$js,
346: { 'add_entries' => $add_entries, });
347: $r->print($start_page);
348: my $brtext = 'Course listing';
349: if ($env{'form.currcat_0'} eq 'communities::0') {
350: $brtext = 'Community listing';
351: }
352: if ($env{'form.state'} eq 'listing') {
353: if ($numtitles > 0) {
354: &Apache::lonhtmlcommon::add_breadcrumb
355: ({href=>"/adm/coursecatalog",
356: text=>"Course/Community Catalog"},
357: {text=>$brtext});
358: } else {
359: &Apache::lonhtmlcommon::add_breadcrumb
360: ({text=>$brtext});
361: }
362: } else {
363: &Apache::lonhtmlcommon::add_breadcrumb
364: ({href=>"/adm/coursecatalog",
365: text=>"Course/Community Catalog"});
366: }
367: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog'));
368: my $onchange = 'this.form.submit()';
369: $r->print('<form name="coursecatdom" method="post" action="/adm/coursecatalog">'.
370: '<table border="0"><tr><td><b>'.&mt('Domain:').'</b></td><td>'.
371: &Apache::loncommon::select_dom_form($codedom,'showdom','',1,$onchange));
372: if (!$onchange) {
373: $r->print(' <input type="submit" name="godom" value="'.&mt('Change').'" />');
374: }
375: $r->print('</td></tr></table></form>'.
376: '<form name="coursecats" method="post" action="/adm/coursecatalog"'.
377: ' onsubmit="return check_selected();">'.
378: '<table border="0"><tr>'.$catlinks.'</tr></table></form>');
379: return;
380: }
381:
382: sub category_breadcrumbs {
383: my ($dom,@cats) = @_;
384: my $crumbsymbol = ' ▶ ';
385: my ($currdepth,$deeper) = &get_depth_values();
386: my $currcat_str =
387: '<input type="hidden" name="catalog_maxdepth" value="'.$deeper.'" />'.
388: '<input type="hidden" name="showdom" value="'.$dom.'" />';
389: my $catlinks = '<td valign="top"><b>'.&mt('Catalog:').'</b></td><td><table><tr><td>';
390: my $has_subcats;
391: my $selitem;
392: if (ref($cats[0]) eq 'ARRAY') {
393: if (@{$cats[0]} == 0) {
394: $catlinks .= &mt('No categories defined in this domain');
395: } elsif (@{$cats[0]} == 1) {
396: if ($cats[0][0] eq 'instcode') {
397: $catlinks .= &mt('Official courses (with institutional codes)');
398: $env{'form.currcat_0'} = 'instcode::0';
399: } elsif ($cats[0][0] eq 'communities') {
400: $catlinks .= &mt('Communities');
401: $env{'form.currcat_0'} = 'communities::0';
402: } else {
403: my $name = $cats[0][0];
404: my $item = &escape($name).'::0';
405: $catlinks .= $name;
406: $env{'form.currcat_0'} = $item;
407: }
408: $currcat_str .= '<input type="hidden" name="currcat_0" value="'.$env{'form.currcat_0'}.'" />';
409: } else {
410: $catlinks .= &main_category_selector(@cats);
411: if (($env{'form.currcat_0'} ne '') &&
412: ($env{'form.currcat_0'} ne 'instcode::0')) {
413: $catlinks .= $crumbsymbol;
414: }
415: }
416: } else {
417: $catlinks .= &mt('Official courses (with institutional codes)');
418: $env{'form.currcat_0'} = 'instcode::0';
419: $currcat_str .= '<input type="hidden" name="currcat_0" value="'.$env{'form.currcat_0'}.'" />';
420: }
421: if ($deeper) {
422: for (my $i=1; $i<=$deeper; $i++) {
423: my $shallower = $i-1;
424: next if ($shallower == 0);
425: my ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$shallower});
426: if ($cat ne '') {
427: $catlinks .= '<td valign="top">'.
428: '<select name="currcat_'.$shallower.'" onchange="'.
429: 'setCatDepth('."'$shallower'".');this.form.submit();">';
430: if (ref($cats[$shallower]{$container}) eq 'ARRAY') {
431: $catlinks .= '<option value="">'.&mt('De-select').'</option>';
432: for (my $j=0; $j<@{$cats[$shallower]{$container}}; $j++) {
433: my $name = $cats[$shallower]{$container}[$j];
434: my $item = &escape($name).':'.&escape($container).':'.$shallower;
435: my $selected = '';
436: if ($item eq $env{'form.currcat_'.$shallower}) {
437: $selected = ' selected="selected"';
438: }
439: $catlinks .=
440: '<option value="'.$item.'"'.$selected.'>'.$name.'</option>';
441: }
442: }
443: $catlinks .= '</select>';
444: }
445: unless ($i == $deeper) {
446: $catlinks .= $crumbsymbol;
447: }
448: }
449: my ($cat,$container,$depth);
450: if ($env{'form.currcat_'.$currdepth} eq '') {
451: my $shallower = $currdepth - 1;
452: ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$shallower});
453: } else {
454: ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$currdepth});
455: }
456: my $deeperlevel = $depth +1;
457: if (ref($cats[$deeperlevel]{$cat}) eq 'ARRAY') {
458: $has_subcats = 1;
459: my $buttontext = &mt('Show subcategories');
460: my $selitem = 'currcat_'.$deeperlevel;
461: $catlinks .= ' <select name="'.$selitem.'" onchange="this.form.submit()">';
462: if (@{$cats[$deeperlevel]{$cat}}) {
463: $catlinks .= '<option value="" selected="selected">'.
464: &mt('Subcategory ...').'</option>';
465: }
466: for (my $k=0; $k<@{$cats[$deeperlevel]{$cat}}; $k++) {
467: my $name = $cats[$deeperlevel]{$cat}[$k];
468: my $item = &escape($name).':'.&escape($cat).':'.$deeperlevel;
469: $catlinks .= '<option value="'.$item.'">'.$name.'</option>'."\n";
470: }
471: $catlinks .= '</select>'."\n";
472: } elsif ($cat ne 'instcode') {
473: $catlinks .= ' '.&mt('(No subcategories)');
474: }
475: } else {
476: $selitem = 'currcat_0';
477: }
478: $catlinks .= $currcat_str.'</td></tr></table></td>';
479: return ($catlinks,$has_subcats,$selitem);
480: }
481:
482: sub main_category_selector {
483: my (@cats) = @_;
484: my $maincatlinks = '<select name="currcat_0" onchange="setCatDepth('."'0'".');this.form.submit();">'."\n";
485: if (ref($cats[0]) eq 'ARRAY') {
486: if (@{$cats[0]} > 1) {
487: my $selected = '';
488: if ($env{'form.currcat_0'} eq '') {
489: $selected = ' selected="selected"';
490: }
491: $maincatlinks .=
492: '<option value=""'.$selected.'>'.&mt('Select').'</option>'."\n";
493: }
494: for (my $i=0; $i<@{$cats[0]}; $i++) {
495: my $name = $cats[0][$i];
496: my $item = &escape($name).'::0';
497: my $selected;
498: if ($env{'form.currcat_0'} eq $item) {
499: $selected = ' selected="selected"';
500: }
501: $maincatlinks .= '<option value="'.$item.'"'.$selected.'>';
502: if ($name eq 'instcode') {
503: $maincatlinks .= &mt('Official courses (with institutional codes)');
504: } elsif ($name eq 'communities') {
505: $maincatlinks .= &mt('Communities');
506: } else {
507: $maincatlinks .= $name;
508: }
509: $maincatlinks .= '</option>'."\n";
510: }
511: $maincatlinks .= '</select>'."\n";
512: }
513: return $maincatlinks;
514: }
515:
516: sub get_depth_values {
517: my $currdepth = 0;
518: my $deeper = 0;
519: if ($env{'form.catalog_maxdepth'} ne '') {
520: $currdepth = $env{'form.catalog_maxdepth'};
521: if ($env{'form.currcat_'.$currdepth} eq '') {
522: $deeper = $currdepth;
523: } else {
524: $deeper = $currdepth + 1;
525: }
526: }
527: return ($currdepth,$deeper);
528: }
529:
530: sub additional_filters {
531: my ($codedom,$has_subcats) = @_;
532: my $is_dc = &user_is_dc($codedom);
533: my $output = '<div class="LC_left_float">';
534: if ($is_dc) {
535: $output .= '<fieldset><legend>'.&mt('Options').'</legend>';
536: }
537: $output .= '<table><tr><td valign="top">';
538: if (($env{'form.currcat_0'} ne 'instcode::0') &&
539: ($env{'form.currcat_0'} ne '') && ($has_subcats)) {
540: my $include_subcat_status;
541: if ($env{'form.withsubcats'}) {
542: $include_subcat_status = 'checked="checked" ';
543: }
544: my $counter = $env{'form.catalog_maxdepth'};
545: if ($counter > 0) {
546: if ($env{'form.state'} eq 'listing') {
547: $counter --;
548: } elsif ($env{'form.currcat_'.$counter} eq '') {
549: $counter --;
550: }
551: }
552: my ($catname) = split(/:/,$env{'form.currcat_'.$counter});
553: if ($catname ne '') {
554: $output .= '<span class="LC_nobreak"><label>'.
555: '<input type="checkbox" name="withsubcats" value="1" '.
556: $include_subcat_status.'/>'.
557: &mt('Include subcategories within "[_1]"',
558: &unescape($catname)).'</label></span><br />';
559: }
560: }
561: my $show_selfenroll_status;
562: if ($env{'form.showselfenroll'}) {
563: $show_selfenroll_status = 'checked="checked" ';
564: }
565: my $selfenroll_text;
566: if ($env{'form.currcat_0'} eq 'communities::0') {
567: $selfenroll_text = &mt('Only show communities which currently allow self-enrollment (or will allow it in the future)');
568: } else {
569: $selfenroll_text = &mt('Only show courses which currently allow self-enrollment (or will allow it in the future)');
570: }
571: $output .= '<span class="LC_nobreak">'.
572: '<label><input type="checkbox" name="showselfenroll" value="1" '.
573: $show_selfenroll_status.'/>'.$selfenroll_text.
574: '</label></span><br />';
575: if ($is_dc) {
576: my ($titlesref,$orderref) = &get_statustitles('filters');
577: my $showdetails_status;
578: if ($env{'form.showdetails'}) {
579: $showdetails_status = 'checked="checked" ';
580: }
581: my $showhidden_status;
582: if ($env{'form.showhidden'}) {
583: $showhidden_status = 'checked="checked" ';
584: }
585: my @currstatuses = &Apache::loncommon::get_env_multiple('form.showcounts');
586: my $dc_title = &Apache::lonnet::plaintext('dc');
587: my ($details_text,$hidden_text,$statusdisplay,$cellborder);
588: my $wasactivedisplay = 'none';
589: if ($env{'form.showdetails'}) {
590: $statusdisplay = 'block';
591: $cellborder = 'border-left: 1px solid;';
592: if (grep(/^Previous$/,@currstatuses)) {
593: $wasactivedisplay = 'block';
594: }
595: } else {
596: $statusdisplay = 'none';
597: $cellborder = 'border-left: 0px';
598: }
599: if ($env{'form.currcat_0'} eq 'communities::0') {
600: $details_text = &mt('Show full details for each community ([_1] only)',$dc_title);
601: $hidden_text = &mt('Include communities set to be hidden from catalog ([_1] only)',$dc_title);
602: } else {
603: $details_text = &mt('Show full details for each course ([_1] only)',$dc_title);
604: $hidden_text = &mt('Include courses set to be hidden from catalog ([_1] only)',$dc_title);
605: }
606: $output .= '<span class="LC_nobreak">'.
607: '<label><input type="checkbox" name="showhidden" value="1" '.
608: $showhidden_status.'/>'.$hidden_text.
609: '</label></span><br />'."\n".
610: '<span class="LC_nobreak">'.
611: '<label><input type="checkbox" name="showdetails" value="1" '.
612: $showdetails_status.'onclick="toggleStatuses();" />'.
613: $details_text.'</label></span></td>'."\n".
614: '<td id="statuscell" valign="top" style="'.$cellborder.'">'.
615: '<div id="statuschoice" style="display:'.$statusdisplay.'">';
616: if (ref($orderref) eq 'ARRAY') {
617: if (@{$orderref} > 0) {
618: foreach my $type (@{$orderref}) {
619: my $checked;
620: if (grep(/^\Q$type\E$/,@currstatuses)) {
621: $checked = ' checked="checked"';
622: }
623: my $title;
624: if (ref($titlesref) eq 'HASH') {
625: $title = $titlesref->{$type};
626: }
627: unless ($title) {
628: $title = &mt($type);
629: }
630: my $onclick;
631: if ($type eq 'Previous') {
632: $onclick = ' onclick="toggleWasActive();"';
633: }
634: $output .= '<span class="LC_nobreak">'.
635: '<label><input type="checkbox" id="counts_'.$type.'"'.
636: ' name="showcounts" value="'.$type.'"'.$checked.$onclick.
637: ' />'.$title.'</label></span>';
638: if ($type eq 'Previous') {
639: my %milestonetext = &Apache::lonlocal::texthash (
640: accessend => 'immediately prior to default end access date',
641: enrollend => 'immediately prior to end date for auto-enrollment',
642: date => 'immediately prior to specific date:',
643: );
644: my @statuses = &Apache::loncommon::get_env_multiple('form.showcounts');
645: $output .= '<span id="choosewasacctext" class="LC_nobreak">';
646: if ($checked) {
647: $output .= &get_wasactive_text();
648: }
649: $output .= '</span>'.
650: '<div id="choosewasactive" style="display:'.$wasactivedisplay.'">'.
651: '<table>';
652: my @milestones = ('accessend');
653: if (&Apache::lonnet::auto_run(undef,$codedom)) {
654: push(@milestones,'enrollend');
655: }
656: push(@milestones,'date');
657: foreach my $item (@milestones) {
658: my $checked;
659: if ($env{'form.state'} eq 'listing') {
660: if ($env{'form.wasactive'} eq $item) {
661: $checked = ' checked="checked"';
662: }
663: } elsif ($item eq 'accessend') {
664: $checked = ' checked="checked"';
665: }
666: $output .=
667: '<tr><td width="10"> </td><td>'.
668: '<span class="LC_nobreak"><label>'.
669: '<input type="radio" value="'.$item.'" name="wasactive"'.$checked.' />'.
670: $milestonetext{$item}.'</label></span>';
671: if ($item eq 'date') {
672: my $wasactiveon;
673: if (grep(/^Previous$/,@currstatuses)) {
674: $wasactiveon =
675: &Apache::lonhtmlcommon::get_date_from_form('wasactiveon');
676: } else {
677: $wasactiveon = 'now';
678: }
679: $output .= ' '.
680: &Apache::lonhtmlcommon::date_setter('coursecatalog',
681: 'wasactiveon',
682: $wasactiveon,
683: '','','',1,'',
684: '','',1);
685: }
686: $output .= '</td></tr>';
687: }
688: $output .= '</table></div>';
689: }
690: $output .= '<br />';
691: }
692: }
693: }
694: $output .= '</div></td>';
695: } else {
696: $output .= '</td>';
697: }
698: $output .= '</tr></table></fieldset></div>'.
699: '<div style="clear:both;margin:0;"></div>';
700: return $output;
701: }
702:
703: sub user_is_dc {
704: my ($codedom) = @_;
705: if (exists($env{'user.role.dc./'.$codedom.'/'})) {
706: my $livedc = 1;
707: my $now = time;
708: my ($start,$end)=split(/\./,$env{'user.role.dc./'.$codedom.'/'});
709: if ($start && $start>$now) { $livedc = 0; }
710: if ($end && $end <$now) { $livedc = 0; }
711: return $livedc;
712: }
713: return;
714: }
715:
716: sub get_statustitles {
717: my ($caller) = @_;
718: my @status_order = ('Active','Future','Previous');
719: my %status_title;
720: if ($caller eq 'filters') {
721: %status_title = &Apache::lonlocal::texthash(
722: Previous => 'Show count for past access',
723: Active => 'Show count for current student access',
724: Future => 'Show count for future student access',
725: );
726: if ($env{'form.currcat_0'} eq 'communities::0') {
727: $status_title{'Active'} = 'Show count for current member access';
728: $status_title{'Future'} = 'Show count for future member access';
729: }
730: } else {
731: %status_title = &Apache::lonlocal::texthash(
732: Previous => 'Previous access',
733: Active => 'Current access',
734: Future => 'Future access',
735: );
736: }
737: return (\%status_title,\@status_order);
738: }
739:
740: sub get_wasactive_text {
741: my $wasacctext = ' -- ';
742: if ($env{'form.currcat_0'} eq 'communities::0') {
743: $wasacctext .= &mt('where member access status was current ...');
744: } else {
745: $wasacctext .= &mt('where student access status was current ...');
746: }
747: return $wasacctext;
748: }
749:
750: sub search_official_courselist {
751: my ($domain,$numtitles,$codetitles) = @_;
752: my $instcode = &Apache::courseclassifier::instcode_search_str($domain,$numtitles,$codetitles);
753: my $showhidden;
754: if (&user_is_dc($domain)) {
755: $showhidden = $env{'form.showhidden'};
756: }
757: my %courses =
758: &Apache::lonnet::courseiddump($domain,'.',1,$instcode,'.','.',undef,undef,
759: 'Course',1,$env{'form.showselfenroll'},undef,
760: $showhidden,'coursecatalog');
761: return %courses;
762: }
763:
764: sub search_courselist {
765: my ($domain,$subcats) = @_;
766: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
767: my $filter = $env{'form.currcat_'.$cat_maxdepth};
768: if (($filter eq '') && ($cat_maxdepth > 0)) {
769: my $shallower = $cat_maxdepth - 1;
770: $filter = $env{'form.currcat_'.$shallower};
771: }
772: my %courses;
773: my $filterstr;
774: if ($filter ne '') {
775: if ($env{'form.withsubcats'}) {
776: if (ref($subcats) eq 'HASH') {
777: if (ref($subcats->{$filter}) eq 'ARRAY') {
778: $filterstr = join('&',@{$subcats->{$filter}});
779: if ($filterstr ne '') {
780: $filterstr = $filter.'&'.$filterstr;
781: }
782: } else {
783: $filterstr = $filter;
784: }
785: } else {
786: $filterstr = $filter;
787: }
788: } else {
789: $filterstr = $filter;
790: }
791: my ($showhidden,$typefilter);
792: if (&user_is_dc($domain)) {
793: $showhidden = $env{'form.showhidden'};
794: }
795: if ($env{'form.currcat_0'} eq 'communities::0') {
796: $typefilter = 'Community';
797: } else {
798: $typefilter = '.';
799: }
800: %courses =
801: &Apache::lonnet::courseiddump($domain,'.',1,'.','.','.',undef,undef,
802: $typefilter,1,$env{'form.showselfenroll'},
803: $filterstr,$showhidden,'coursecatalog');
804: }
805: return %courses;
806: }
807:
808: sub print_course_listing {
809: my ($domain,$numtitles,$trails,$allitems,$subcats,$codetitles) = @_;
810: my $output;
811: my %courses;
812: my $knownuser = &user_is_known();
813: my $details = $env{'form.coursenum'};
814: if (&user_is_dc($domain)) {
815: if ($env{'form.showdetails'}) {
816: $details = 1;
817: }
818: }
819: if ($env{'form.coursenum'} ne '') {
820: %courses = &Apache::lonnet::courseiddump($domain,'.',1,'.','.',
821: $env{'form.coursenum'},
822: undef,undef,'.',1);
823: if (keys(%courses) == 0) {
824: $output = '<p class="LC_error">';
825: if ($env{'form.currcat_0'} eq 'communities::0') {
826: $output .= &mt('The courseID provided does not match a community in this domain.');
827: } else {
828: $output .= &mt('The courseID provided does not match a course in this domain.');
829: }
830: $output .= '</p>';
831: return $output;
832: }
833: } else {
834: if ($env{'form.currcat_0'} eq 'instcode::0') {
835: %courses = &search_official_courselist($domain,$numtitles,$codetitles);
836: } else {
837: %courses = &search_courselist($domain,$subcats);
838: }
839: if (keys(%courses) == 0) {
840: $output = '<p class="LC_info">';
841: if ($env{'form.currcat_0'} eq 'communities::0') {
842: $output .= &mt('No communities match the criteria you selected.');
843: } else {
844: $output .= &mt('No courses match the criteria you selected.');
845: }
846: $output .= '</p>';
847: return $output;
848: }
849: if (($knownuser) && (!$env{'form.showdetails'}) && (!&user_is_dc($domain))) {
850: $output = '<b>'.&mt('Note for students:').'</b> '
851: .&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.')
852: .'<br /><br />';
853: }
854: }
855: my $now = time;
856: my %domconfig =
857: &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
858: $output .= &construct_data_table($knownuser,$domain,\%courses,$details,undef,
859: $now,\%domconfig,$trails,$allitems);
860: $output .= "\n".'<form name="linklaunch" method="post" action="">'.
861: '<input type="hidden" name="backto" value="coursecatalog" />'.
862: '<input type="hidden" name="courseid" value="" />'.
863: &Apache::lonhtmlcommon::echo_form_input(['catalogfilter','courseid']).'</form>';
864: return $output;
865: }
866:
867: sub construct_data_table {
868: my ($knownuser,$domain,$courses,$details,$usersections,$now,$domconfig,
869: $trails,$allitems) = @_;
870: my %sortname;
871: if (($details eq '') || ($env{'form.showdetails'})) {
872: $sortname{'Code'} = 'code';
873: $sortname{'Categories'} = 'cats';
874: $sortname{'Title'} = 'title';
875: $sortname{'Owner & Co-owner(s)'} = 'owner';
876: }
877: my $output = &Apache::loncommon::start_data_table().
878: &Apache::loncommon::start_data_table_header_row();
879: my @coltitles = ('Count');
880: if ($env{'form.currcat_0'} eq 'instcode::0') {
881: push(@coltitles,'Code');
882: } else {
883: push(@coltitles,'Categories');
884: }
885: push(@coltitles,('Sections','Crosslisted','Title','Owner & Co-owner(s)'));
886: if (ref($usersections) eq 'HASH') {
887: $coltitles[1] = 'Your Section';
888: }
889: foreach my $item (@coltitles) {
890: $output .= '<th>';
891: if (defined($sortname{$item})) {
892: $output .= '<a href="javascript:changeSort('."'$sortname{$item}'".')">'.&mt($item).'</a>';
893: } elsif ($item eq 'Count') {
894: $output .= ' ';
895: } else {
896: $output .= &mt($item);
897: }
898: $output .= '</th>';
899: }
900: my (@fields,%fieldtitles,$wasactiveon);
901: if ($knownuser) {
902: if ($details) {
903: if ($env{'form.currcat_0'} eq 'communities::0') {
904: $output .= '<th>'.&mt('Default Access Dates for Members').'</th>'.
905: '<th>'.&mt('Member Counts').'</th>';
906: } else {
907: $output .=
908: '<th>'.&mt('Default Access Dates for Students').'</th>'.
909: '<th>'.&mt('Student Counts').'</th>'.
910: '<th>'.&mt('Auto-enrollment of[_1]registered students','<br />').'</th>';
911: }
912: my ($titlesref,$orderref) = &get_statustitles();
913: my @statuses;
914: if (&user_is_dc($domain)) {
915: @statuses = &Apache::loncommon::get_env_multiple('form.showcounts');
916: if (grep(/^Previous$/,@statuses)) {
917: if ($env{'form.wasactive'} eq 'date') {
918: $wasactiveon =
919: &Apache::lonhtmlcommon::get_date_from_form('wasactiveon');
920: } else {
921: $wasactiveon = $env{'form.wasactive'};
922: }
923: }
924: if (ref($orderref) eq 'ARRAY') {
925: foreach my $status (@{$orderref}) {
926: if (grep(/^\Q$status\E$/,@statuses)) {
927: push(@fields,$status);
928: }
929: }
930: }
931: } else {
932: @fields = ('Active','Future');
933: }
934: foreach my $status (@fields) {
935: my $title;
936: if (ref($titlesref) eq 'HASH') {
937: $title = $titlesref->{$status};
938: }
939: unless ($title) {
940: $title = &mt($status);
941: }
942: $fieldtitles{$status} = $title;
943: }
944: } else {
945: $output .= '<th>'.&mt('Details').'</th>';
946: }
947: }
948: $output .= '<th>'.&mt('Self-enroll (if permitted)').'</th>';
949: &Apache::loncommon::end_data_table_header_row();
950: my (%numbers,%creditsum);
951: my ($showcredits,$defofficial,$defunofficial,$deftextbook);
952: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
953: unless ($env{'form.currcat_0'} eq 'communities::0') {
954: if ($domdefaults{'officialcredits'} || $domdefaults{'unofficialcredits'} || $domdefaults{'textbookcredits'}) {
955: $showcredits = 1;
956: $defofficial = $domdefaults{'officialcredits'};
957: $defunofficial = $domdefaults{'unofficialcredits'};
958: $deftextbook = $domdefaults{'textbookcredits'};
959: }
960: }
961: my %courseinfo = &build_courseinfo_hash($courses,$knownuser,$domain,$details,
962: $usersections,\@fields,\%fieldtitles,
963: $wasactiveon,\%numbers,\%creditsum,
964: $showcredits,$defofficial,$defunofficial,$deftextbook);
965: my %Sortby;
966: foreach my $course (sort(keys(%{$courses}))) {
967: if ($env{'form.sortby'} eq 'code') {
968: push(@{$Sortby{$courseinfo{$course}{'code'}}},$course);
969: } elsif ($env{'form.sortby'} eq 'cats') {
970: push(@{$Sortby{$courseinfo{$course}{'categories'}}},$course);
971: } elsif ($env{'form.sortby'} eq 'owner') {
972: push(@{$Sortby{$courseinfo{$course}{'ownerlastnames'}}},$course);
973: } else {
974: my $clean_title = $courseinfo{$course}{'title'};
975: $clean_title =~ s/\W+//g;
976: if ($clean_title eq '') {
977: $clean_title = $courseinfo{$course}{'title'};
978: }
979: push(@{$Sortby{$clean_title}},$course);
980: }
981: }
982: my @sorted_courses;
983: if (($env{'form.sortby'} eq 'code') || ($env{'form.sortby'} eq 'owner') ||
984: ($env{'form.sortby'} eq 'cats')) {
985: @sorted_courses = sort(keys(%Sortby));
986: } else {
987: @sorted_courses = sort { lc($a) cmp lc($b) } (keys(%Sortby));
988: }
989: my $count = 1;
990: my $totalsec = 0;
991: foreach my $item (@sorted_courses) {
992: foreach my $course (@{$Sortby{$item}}) {
993: $output.=&Apache::loncommon::start_data_table_row();
994: $output.=&courseinfo_row($courseinfo{$course},$knownuser,$details,
995: \$count,$now,$course,$trails,$allitems,\%numbers);
996: $output.=&Apache::loncommon::end_data_table_row();
997: }
998: }
999: if (($knownuser) && ($count > 1) && $env{'form.showdetails'}) {
1000: if (&user_is_dc($domain)) {
1001: my %lt = &Apache::lonlocal::texthash (
1002: 'Active' => 'Total current students',
1003: 'Future' => 'Total future students',
1004: 'Previous' => 'Total previous students',
1005: 'courses' => 'Total unique codes and courses without codes',
1006: 'sections' => 'Total sections',
1007: 'xlists' => 'Total cross-listings',
1008: );
1009: if ($showcredits) {
1010: $lt{'cr_Active'} = &mt('Total current student credit hours');
1011: $lt{'cr_Future'} = &mt('Total future student credit hours');
1012: $lt{'cr_Previous'} = &mt('Total previous student credit hours');
1013: }
1014: if ($env{'form.currcat_0'} eq 'communities::0') {
1015: $lt{'courses'} = &mt('Total communities');
1016: $lt{'Active'} = &mt('Total current members');
1017: $lt{'Future'} = &mt('Total future members');
1018: $lt{'Previous'} = &mt('Total previous members');
1019: }
1020: my $colspan = 8;
1021: if ($showcredits) {
1022: $colspan = 4;
1023: }
1024: $output .= '<tr class="LC_footer_row">'.
1025: '<td colspan="2"> </td>'.
1026: '<td colspan="'.$colspan.'">'.
1027: '<table border="0">';
1028: foreach my $item ('courses','sections','xlists') {
1029: $output .= '<tr>'.
1030: '<td>'.$lt{$item}.'</td><td> </td>'.
1031: '<td align="right">'.$numbers{$item}.'</td>'.
1032: '</tr>'."\n";
1033: }
1034: if (@fields > 0) {
1035: foreach my $status (@fields) {
1036: $output .= '<tr>'.
1037: '<td>'.$lt{$status}.'</td><td> </td>'.
1038: '<td align="right">'.$numbers{$status}.'</td>'.
1039: '</tr>'."\n";
1040: }
1041: }
1042: $output .= '</table></td>';
1043: if ($showcredits) {
1044: $output .= '<td colspan="'.$colspan.'" valign="bottom"><table>';
1045: foreach my $status (@fields) {
1046: $output .= '<tr>'.
1047: '<td>'.$lt{'cr_'.$status}.'</td><td> </td>'.
1048: '<td align="right">'.$creditsum{$status}.'</td></tr>';
1049: }
1050: $output .= '</table></td></tr>';
1051: }
1052: }
1053: }
1054: $output .= &Apache::loncommon::end_data_table();
1055: return $output;
1056: }
1057:
1058: sub build_courseinfo_hash {
1059: my ($courses,$knownuser,$domain,$details,$usersections,$fields,$fieldtitles,
1060: $wasactiveon,$numbers,$creditsum,$showcredits,$defofficial,$defunofficial) = @_;
1061: my %courseinfo;
1062: my $now = time;
1063: my $gettotals;
1064: if ((keys(%{$courses}) > 0) && (&user_is_dc($domain)) && ($details)) {
1065: $gettotals = 1;
1066: }
1067: my (%uniquecodes,$nocodes,$defcreds);
1068: foreach my $course (keys(%{$courses})) {
1069: my $descr;
1070: if (ref($courses->{$course}) eq 'HASH') {
1071: $descr = $courses->{$course}{'description'};
1072: }
1073: my $cleandesc=&HTML::Entities::encode($descr,'<>&"');
1074: $cleandesc=~s/'/\\'/g;
1075: $cleandesc =~ s/^\s+//;
1076: my ($cdom,$cnum)=split(/\_/,$course);
1077: my ($instcode,$singleowner,$ttype,$selfenroll_types,
1078: $selfenroll_start,$selfenroll_end,@owners,%ownernames,$categories);
1079: if (ref($courses->{$course}) eq 'HASH') {
1080: $descr = $courses->{$course}{'description'};
1081: $instcode = $courses->{$course}{'inst_code'};
1082: $singleowner = $courses->{$course}{'owner'};
1083: $ttype = $courses->{$course}{'type'};
1084: $selfenroll_types = $courses->{$course}{'selfenroll_types'};
1085: $selfenroll_start = $courses->{$course}{'selfenroll_start_date'};
1086: $selfenroll_end = $courses->{$course}{'selfenroll_end_date'};
1087: $categories = $courses->{$course}{'categories'};
1088: push(@owners,$singleowner);
1089: if ($courses->{$course}{'co-owners'} ne '') {
1090: foreach my $item (split(/,/,$courses->{$course}{'co-owners'})) {
1091: push(@owners,$item);
1092: }
1093: }
1094: }
1095: if ($instcode ne '') {
1096: $uniquecodes{$instcode} = 1;
1097: } else {
1098: $nocodes ++;
1099: }
1100: foreach my $owner (@owners) {
1101: my ($ownername,$ownerdom);
1102: if ($owner =~ /:/) {
1103: ($ownername,$ownerdom) = split(/:/,$owner);
1104: } else {
1105: $ownername = $owner;
1106: if ($owner ne '') {
1107: $ownerdom = $cdom;
1108: }
1109: }
1110: if ($ownername ne '' && $ownerdom ne '') {
1111: my %namehash=&Apache::loncommon::getnames($ownername,$ownerdom);
1112: $ownernames{$ownername.':'.$ownerdom} = \%namehash;
1113: }
1114: }
1115: $courseinfo{$course}{'cdom'} = $cdom;
1116: $courseinfo{$course}{'cnum'} = $cnum;
1117: $courseinfo{$course}{'code'} = $instcode;
1118: my @lastnames;
1119: foreach my $owner (keys(%ownernames)) {
1120: if (ref($ownernames{$owner}) eq 'HASH') {
1121: push(@lastnames,$ownernames{$owner}{'lastname'});
1122: }
1123: }
1124: $courseinfo{$course}{'ownerlastnames'} = join(', ',sort(@lastnames));
1125: $courseinfo{$course}{'title'} = $cleandesc;
1126: $courseinfo{$course}{'owner'} = $singleowner;
1127: $courseinfo{$course}{'selfenroll_types'} = $selfenroll_types;
1128: $courseinfo{$course}{'selfenroll_start'} = $selfenroll_start;
1129: $courseinfo{$course}{'selfenroll_end'} = $selfenroll_end;
1130: $courseinfo{$course}{'categories'} = $categories;
1131:
1132: my %coursehash = &Apache::lonnet::dump('environment',$cdom,$cnum);
1133: my @classids;
1134: my @crosslistings;
1135: my ($seclist,$numsec) =
1136: &identify_sections($coursehash{'internal.sectionnums'});
1137: $courseinfo{$course}{'seclist'} = $seclist;
1138: my ($xlist_items,$numxlist) =
1139: &identify_sections($coursehash{'internal.crosslistings'});
1140: if (ref($numbers) eq 'HASH') {
1141: $numbers->{'sections'} += $numsec;
1142: $numbers->{'xlists'} += $numxlist;
1143: }
1144: my $showsyllabus = 1; # default is to include a syllabus link
1145: if (defined($coursehash{'showsyllabus'})) {
1146: $showsyllabus = $coursehash{'showsyllabus'};
1147: }
1148: $courseinfo{$course}{'showsyllabus'} = $showsyllabus;
1149: if ($showcredits) {
1150: if ($coursehash{'internal.defaultcredits'}) {
1151: $courseinfo{$course}{'defaultcredits'} = $coursehash{'internal.defaultcredits'};
1152: } elsif ($instcode ne '') {
1153: $courseinfo{$course}{'defaultcredits'} = $defofficial;
1154: } else {
1155: $courseinfo{$course}{'defaultcredits'} = $defunofficial;
1156: }
1157: $defcreds = $courseinfo{$course}{'defaultcredits'};
1158: }
1159: if (((defined($env{'form.coursenum'}) && ($cnum eq $env{'form.coursenum'}))) ||
1160: ($knownuser && ($details == 1))) {
1161: my $milestone;
1162: if ($wasactiveon eq 'accessend') {
1163: if ($coursehash{'default_enrollment_end_date'}) {
1164: $milestone = $coursehash{'default_enrollment_end_date'};
1165: } else {
1166: $milestone = time;
1167: }
1168: } elsif ($wasactiveon eq 'enrollend') {
1169: if ($coursehash{'internal.autoend'}) {
1170: $milestone = $coursehash{'internal.autoend'};
1171: } else {
1172: $milestone = time;
1173: }
1174: } else {
1175: $milestone = $wasactiveon;
1176: }
1177: $courseinfo{$course}{'counts'} =
1178: &count_students($cdom,$cnum,$numsec,$fields,$fieldtitles,$gettotals,
1179: $numbers,$creditsum,$showcredits,$defcreds,$milestone);
1180: if ($instcode ne '') {
1181: $courseinfo{$course}{'autoenrollment'} =
1182: &autoenroll_info(\%coursehash,$now,$seclist,$xlist_items,
1183: $instcode,\@owners,$cdom,$cnum);
1184: }
1185: my $startaccess = '';
1186: my $endaccess = '';
1187: my $accessdates;
1188: if ( defined($coursehash{'default_enrollment_start_date'}) ) {
1189: $startaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_start_date'});
1190: }
1191: if ( defined($coursehash{'default_enrollment_end_date'}) ) {
1192: $endaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_end_date'});
1193: if ($coursehash{'default_enrollment_end_date'} == 0) {
1194: $endaccess = &mt('No ending date');
1195: }
1196: }
1197: if ($startaccess) {
1198: $accessdates .= '<i>'.&mt('From:[_1]','</i> '.$startaccess).'<br />';
1199: }
1200: if ($endaccess) {
1201: $accessdates .= '<i>'.&mt('To:[_1]','</i> '.$endaccess).'<br />';
1202: }
1203: if (($selfenroll_types ne '') &&
1204: ($selfenroll_end > 0 && $selfenroll_end > $now)) {
1205: my ($selfenroll_start_access,$selfenroll_end_access);
1206: if (($coursehash{'default_enrollment_start_date'} ne
1207: $coursehash{'internal.selfenroll_start_access'}) ||
1208: ($coursehash{'default_enrollment_end_date'} ne
1209: $coursehash{'internal.selfenroll_end_access'})) {
1210: if ( defined($coursehash{'internal.selfenroll_start_access'}) ) {
1211: $selfenroll_start_access = &Apache::lonlocal::locallocaltime($coursehash{'internal.selfenroll_start_access'});
1212: }
1213: if ( defined($coursehash{'default_enrollment_end_date'}) ) {
1214: $selfenroll_end_access = &Apache::lonlocal::locallocaltime($coursehash{'internal.selfenroll_end_access'});
1215: if ($coursehash{'internal.selfenroll_end_access'} == 0) {
1216: $selfenroll_end_access = &mt('No ending date');
1217: }
1218: }
1219: if ($selfenroll_start_access || $selfenroll_end_access) {
1220: $accessdates .= '<br/><br /><i>'.&mt('Self-enrollers:').'</i><br />';
1221: if ($selfenroll_start_access) {
1222: $accessdates .= '<i>'.&mt('From:[_1]','</i> '.$selfenroll_start_access).'<br />';
1223: }
1224: if ($selfenroll_end_access) {
1225: $accessdates .= '<i>'.&mt('To:[_1]','</i> '.$selfenroll_end_access).'<br />';
1226: }
1227: }
1228: }
1229: }
1230: $courseinfo{$course}{'access'} = $accessdates;
1231: }
1232: if ($xlist_items eq '') {
1233: $xlist_items = &mt('No');
1234: }
1235: $courseinfo{$course}{'xlist'} = $xlist_items;
1236: }
1237: if (ref($numbers) eq 'HASH') {
1238: $numbers->{'courses'} = $nocodes + scalar(keys(%uniquecodes));
1239: }
1240: return %courseinfo;
1241: }
1242:
1243: sub count_students {
1244: my ($cdom,$cnum,$numsec,$fieldsref,$titlesref,$getcounts,$numbers,$creditsum,
1245: $showcredits,$defcreds,$wasactiveon) = @_;
1246: my $countslist = '<span class="LC_nobreak">'.
1247: &mt('[quant,_1,section,sections,No sections]',$numsec).'</span>';
1248: my (@fields,%titles,$showexpired);
1249: if ((ref($fieldsref) eq 'ARRAY') && (ref($titlesref) eq 'HASH') &&
1250: (ref($numbers) eq 'HASH')) {
1251: @fields = @{$fieldsref};
1252: %titles = %{$titlesref};
1253: if (grep(/^Previous$/,@fields)) {
1254: $showexpired = 1;
1255: }
1256: } else {
1257: return;
1258: }
1259: my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cnum);
1260: my (%student_count,%credit_count);
1261: %student_count = (
1262: Active => 0,
1263: Future => 0,
1264: Previous => 0,
1265: );
1266: if ($showcredits) {
1267: %credit_count = (
1268: Active => 0,
1269: Future => 0,
1270: Previous => 0,
1271: );
1272: }
1273: my %idx;
1274: $idx{'status'} = &Apache::loncoursedata::CL_STATUS();
1275: $idx{'end'} = &Apache::loncoursedata::CL_END();
1276: $idx{'credits'} = &Apache::loncoursedata::CL_CREDITS();
1277: while (my ($student,$data) = each(%$classlist)) {
1278: my $status = $data->[$idx{'status'}];
1279: my $credits = $data->[$idx{'credits'}];
1280: if ($credits eq '') {
1281: $credits = $defcreds;
1282: }
1283: if ($status eq 'Expired') {
1284: if (($showexpired) &&
1285: ($data->[$idx{'end'}] >= $wasactiveon)) {
1286: $student_count{'Previous'} ++;
1287: if ($showcredits) {
1288: $credit_count{'Previous'} += $credits;
1289: }
1290: }
1291: } else {
1292: $student_count{$status} ++;
1293: if ($showcredits) {
1294: $credit_count{$status} += $credits;
1295: }
1296: }
1297: }
1298: if (@fields) {
1299: $countslist .= ':<br />';
1300: foreach my $status (@fields) {
1301: $countslist .= '<span class="LC_nobreak">'.$titles{$status}.': '.
1302: $student_count{$status}.'</span><br />';
1303: $numbers->{$status} += $student_count{$status};
1304: if ($showcredits) {
1305: $creditsum->{$status} += $credit_count{$status};
1306: }
1307: }
1308: }
1309: return $countslist;
1310: }
1311:
1312: sub courseinfo_row {
1313: my ($info,$knownuser,$details,$countref,$now,$course,$trails,$allitems,$numbers) = @_;
1314: my ($cdom,$cnum,$title,$ownerlast,$code,$owner,$seclist,$xlist_items,
1315: $accessdates,$showsyllabus,$counts,$autoenrollment,$output,$categories);
1316: if (ref($info) eq 'HASH') {
1317: $cdom = $info->{'cdom'};
1318: $cnum = $info->{'cnum'};
1319: $title = $info->{'title'};
1320: $ownerlast = $info->{'ownerlastnames'};
1321: $code = $info->{'code'};
1322: $owner = $info->{'owner'};
1323: $seclist = $info->{'seclist'};
1324: $xlist_items = $info->{'xlist'};
1325: $accessdates = $info->{'access'};
1326: $counts = $info->{'counts'};
1327: $autoenrollment = $info->{'autoenrollment'};
1328: $showsyllabus = $info->{'showsyllabus'};
1329: $categories = $info->{'categories'};
1330: } else {
1331: $output = '<td colspan="8">'.&mt('No information available for [_1].',
1332: $code).'</td>';
1333: return $output;
1334: }
1335: $output .= '<td>'.$$countref.'</td>';
1336: if ($env{'form.currcat_0'} eq 'instcode::0') {
1337: $output .= '<td>'.$code.'</td>';
1338: } else {
1339: my ($categorylist,@cats);
1340: if ($categories ne '') {
1341: @cats = split('&',$categories);
1342: }
1343: if ((ref($trails) eq 'ARRAY') && (ref($allitems) eq 'HASH')) {
1344: my @categories = map { $trails->[$allitems->{$_}]; } @cats;
1345: $categorylist = join('<br />',@categories);
1346: }
1347: if ($categorylist eq '') {
1348: $categorylist = ' ';
1349: }
1350: $output .= '<td>'.$categorylist.'</td>';
1351: }
1352: $output .= '<td>'.$seclist.'</td>'.
1353: '<td>'.$xlist_items.'</td>'.
1354: '<td>'.$title.' <font size="-2">';
1355: if ($showsyllabus) {
1356: $output .= '<a href="javascript:ToSyllabus('."'$cdom','$cnum'".')">'.&mt('Syllabus').'</a>';
1357: } else {
1358: $output .= ' ';
1359: }
1360: $output .= '</font></td>'.
1361: '<td>'.$ownerlast.'</td>';
1362: if ($knownuser) {
1363: if ($details) {
1364: $output .=
1365: '<td>'.$accessdates.'</td>'.
1366: '<td>'.$counts.'</td>';
1367: unless ($env{'form.currcat_0'} eq 'communities::0') {
1368: $output .= '<td>'.$autoenrollment.'</td>';
1369: }
1370: } else {
1371: $output .= "<td><a href=\"javascript:setCourseId('$cnum')\">".&mt('Show more details').'</a></td>';
1372: }
1373: }
1374: my $selfenroll;
1375: if ($info->{'selfenroll_types'}) {
1376: my $showstart = &Apache::lonlocal::locallocaltime($info->{'selfenroll_start'});
1377: my $showend = &Apache::lonlocal::locallocaltime($info->{'selfenroll_end'});
1378: if (($info->{'selfenroll_end'} > 0) && ($info->{'selfenroll_end'} > $now)) {
1379: if (($info->{'selfenroll_start'} > 0) && ($info->{'selfenroll_start'} > $now)) {
1380: $output .= '<td>'.&mt('Starts: [_1]','<span class="LC_cusr_emph">'.$showstart.'</span>').'<br />'.&mt('Ends: [_1]','<span class="LC_cusr_emph">'.$showend.'</span>').'</td>';
1381: } else {
1382: $output .= '<td><a href="javascript:ToSelfenroll('."'$course'".')">'.&mt('Enroll in course').'</a><br />';
1383: if ($info->{'selfenroll_end'} == 0) {
1384: $output .= &mt('Available permanently');
1385: } elsif ($info->{'selfenroll_end'} > $now) {
1386: $output .= &mt('Self-enrollment ends: [_1]','<span class="LC_cusr_emph">'.$showend.'</span>');
1387: }
1388: $output .= '</td>';
1389: }
1390: $selfenroll = 1;
1391: }
1392: }
1393: if (!$selfenroll) {
1394: $output .= '<td> </td>';
1395: }
1396: $$countref ++;
1397: return $output;
1398: }
1399:
1400: sub identify_sections {
1401: my ($seclist) = @_;
1402: my @secnums;
1403: if ($seclist =~ /,/) {
1404: my @sections = split(/,/,$seclist);
1405: foreach my $sec (@sections) {
1406: $sec =~ s/:[^:]*$//;
1407: push(@secnums,$sec);
1408: }
1409: } else {
1410: if ($seclist =~ m/^([^:]+):/) {
1411: my $sec = $1;
1412: if (!grep(/^\Q$sec\E$/,@secnums)) {
1413: push(@secnums,$sec);
1414: }
1415: }
1416: }
1417: @secnums = sort {$a <=> $b} @secnums;
1418: $seclist = join(', ',@secnums);
1419: my $numsec = @secnums;
1420: return ($seclist,$numsec);
1421: }
1422:
1423: sub get_valid_classes {
1424: my ($seclist,$xlist_items,$crscode,$owners,$cdom,$cnum) = @_;
1425: my $response;
1426: my %validations;
1427: @{$validations{'sections'}} = ();
1428: @{$validations{'xlists'}} = ();
1429: my $totalitems = 0;
1430: if ($seclist) {
1431: foreach my $sec (split(/, /,$seclist)) {
1432: my $class = $crscode.$sec;
1433: if (&Apache::lonnet::auto_validate_class_sec($cdom,$cnum,$owners,
1434: $class) eq 'ok') {
1435: if (!grep(/^\Q$sec$\E/,@{$validations{'sections'}})) {
1436: push(@{$validations{'sections'}},$sec);
1437: $totalitems ++;
1438: }
1439: }
1440: }
1441: }
1442: if ($xlist_items) {
1443: foreach my $item (split(/, /,$xlist_items)) {
1444: if (&Apache::lonnet::auto_validate_class_sec($cdom,$cnum,$owners,
1445: $item) eq 'ok') {
1446: if (!grep(/^\Q$item$\E/,@{$validations{'xlists'}})) {
1447: push(@{$validations{'xlists'}},$item);
1448: $totalitems ++;
1449: }
1450: }
1451: }
1452: }
1453: if ($totalitems > 0) {
1454: if (@{$validations{'sections'}}) {
1455: $response = &mt('Sections:').' '.
1456: join(', ',@{$validations{'sections'}}).'<br />';
1457: }
1458: if (@{$validations{'xlists'}}) {
1459: $response .= &mt('Courses:').' '.
1460: join(', ',@{$validations{'xlists'}});
1461: }
1462: }
1463: return $response;
1464: }
1465:
1466: sub autoenroll_info {
1467: my ($coursehash,$now,$seclist,$xlist_items,$code,$owners,$cdom,$cnum) = @_;
1468: my $autoenrolldates = &mt('Not enabled');
1469: if (defined($coursehash->{'internal.autoadds'}) && $coursehash->{'internal.autoadds'} == 1) {
1470: my ($autostart,$autoend);
1471: if ( defined($coursehash->{'internal.autostart'}) ) {
1472: $autostart = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autostart'});
1473: }
1474: if ( defined($coursehash->{'internal.autoend'}) ) {
1475: $autoend = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autoend'});
1476: }
1477: if ($coursehash->{'internal.autostart'} > $now) {
1478: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
1479: $autoenrolldates = &mt('Not enabled');
1480: } else {
1481: my $valid_classes =
1482: &get_valid_classes($seclist,$xlist_items,$code,
1483: $owners,$cdom,$cnum);
1484: if ($valid_classes ne '') {
1485: $autoenrolldates = &mt('Not enabled').'<br />'
1486: .&mt('Starts: [_1]',$autostart)
1487: .'<br />'.$valid_classes;
1488: }
1489: }
1490: } else {
1491: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
1492: $autoenrolldates = &mt('Not enabled').'<br />'
1493: .&mt('Ended: [_1]',$autoend);
1494: } else {
1495: my $valid_classes = &get_valid_classes($seclist,$xlist_items,
1496: $code,$owners,$cdom,$cnum);
1497: if ($valid_classes ne '') {
1498: $autoenrolldates = &mt('Currently enabled').'<br />'.
1499: $valid_classes;
1500: }
1501: }
1502: }
1503: }
1504: return $autoenrolldates;
1505: }
1506:
1507: sub user_is_known {
1508: my $known = 0;
1509: if ($env{'user.name'} ne '' && $env{'user.name'} ne 'public'
1510: && $env{'user.domain'} ne '' && $env{'user.domain'} ne 'public') {
1511: $known = 1;
1512: }
1513: return $known;
1514: }
1515:
1516: 1;
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