1: # The LearningOnline Network with CAPA
2: # Handler for displaying the course catalog interface
3: #
4: # $Id: coursecatalog.pm,v 1.38 2008/07/13 20:13:10 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,$subcats);
90: if ($env{'form.coursenum'} ne '' && &user_is_known()) {
91: &course_details($r,$codedom,$formname,$domdesc,\@trails,\%allitems);
92: } else {
93: my ($catlinks,$has_subcats) = &category_breadcrumbs($codedom,@cats);
94: my $catjs = <<"ENDSCRIPT";
95:
96: function setCatDepth(depth) {
97: document.coursecats.catalog_maxdepth.value = depth;
98: if (depth == '') {
99: document.coursecats.currcat_0.value = '';
100: }
101: document.coursecats.submit();
102: return;
103: }
104:
105: function changeSort(caller) {
106: document.$formname.sortby.value = caller;
107: document.$formname.submit();
108: }
109: function setCourseId(caller) {
110: document.$formname.coursenum.value = caller;
111: document.$formname.submit();
112: }
113:
114: ENDSCRIPT
115: my $numtitles;
116: if ($env{'form.currcat_0'} eq 'instcode::0') {
117: $numtitles = &instcode_course_selector($r,$codedom,$formname,$domdesc,
118: $catlinks,$catjs);
119: if ($env{'form.state'} eq 'listing') {
120: $r->print(&print_course_listing($codedom,$numtitles));
121: }
122: } else {
123: my (%add_entries);
124: $catjs = '<script type="text/javascript">'."\n".$catjs."\n".'</script>';
125: &cat_header($r,$codedom,$catjs,\%add_entries,$catlinks);
126: if ($env{'form.currcat_0'} ne '') {
127: $r->print('<form name="'.$formname.
128: '" method="post" action="/adm/coursecatalog">'.
129: &additional_filters($codedom,$has_subcats)."\n");
130: my ($currdepth,$deeper) = &get_depth_values();
131: $r->print('<input type="hidden" name="catalog_maxdepth" value="'.
132: $deeper.'" />'."\n");
133: for (my $i=0; $i<$deeper; $i++) {
134: $r->print('<input type="hidden" name="currcat_'.$i.'" value="'.$env{'form.currcat_'.$i}.'" />'."\n");
135: }
136: $r->print('<input type="hidden" name="coursenum" value="" />'."\n".
137: '<input type="hidden" name="sortby" value="" />'."\n".
138: '<input type="hidden" name="state" value="listing" />'."\n".
139: '<input type="hidden" name="showdom" value="'.
140: $env{'form.showdom'}.'" />'.
141: '<input type="submit" name="catalogfilter" value="'.
142: &mt('Display courses').'" /></form><br /><br />');
143: }
144: if ($env{'form.state'} eq 'listing') {
145: $r->print(&print_course_listing($codedom,undef,\@trails,\%allitems,$subcats));
146: }
147: }
148: }
149: $r->print('<br />'.&Apache::loncommon::end_page());
150: return OK;
151: }
152:
153: sub course_details {
154: my ($r,$codedom,$formname,$domdesc,$trails,$allitems) = @_;
155: my $output;
156: my %add_entries = (topmargin => "0",
157: marginheight => "0",);
158: my $start_page =
159: &Apache::loncommon::start_page('Course Catalog','',
160: {
161: 'add_entries' => \%add_entries,
162: 'no_inline_link' => 1,});
163: $r->print($start_page);
164: if ($env{'form.numtitles'} > 0) {
165: &Apache::lonhtmlcommon::add_breadcrumb
166: ({href=>"/adm/coursecatalog",
167: text=>"Select courses"});
168: }
169: &Apache::lonhtmlcommon::add_breadcrumb
170: ({href=>"javascript:document.$formname.submit()",
171: text=>"Course listing"},
172: {text=>"Course details"});
173: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course Details'));
174: $r->print('<br />'.&mt('Detailed course information:').'<br /><br />'.
175: '<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
176: &print_course_listing($codedom,undef,$trails,$allitems).
177: '<br /><br />');
178: $r->print('<a href = "javascript:document.coursecatalog.submit()">'.
179: &mt('Back to course listing').'</a>'.
180: '<input type="hidden" name="sortby" value="'.
181: $env{'form.sortby'}.'" />'.
182: '<input type="hidden" name="state" value="listing" /></form>');
183: }
184:
185: sub instcode_course_selector {
186: my ($r,$codedom,$formname,$domdesc,$catlinks,$catjs) = @_;
187: my %coursecodes = ();
188: my %codes = ();
189: my @codetitles = ();
190: my %cat_titles = ();
191: my %cat_order = ();
192: my %idlist = ();
193: my %idnums = ();
194: my %idlist_titles = ();
195: my %by_year;
196: my %by_sem;
197: my %by_dept;
198: my %cat_items;
199: my $caller = 'global';
200: my $format_reply;
201: my $totcodes = 0;
202: my $jscript = '';
203: my ($numtitles,$lasttitle);
204: my %add_entries = (topmargin => "0",
205: marginheight => "0",);
206: my $js;
207: $totcodes = &Apache::courseclassifier::retrieve_instcodes(\%coursecodes,$codedom);
208: if ($totcodes > 0) {
209: $format_reply = &Apache::lonnet::auto_instcode_format($caller,$codedom,\%coursecodes,\%codes,\@codetitles,\%cat_titles,\%cat_order);
210: if ($format_reply eq 'ok') {
211: my $numtypes = @codetitles;
212: &Apache::courseclassifier::build_code_selections(\%codes,\@codetitles,\%cat_titles,\%cat_order,\%idlist,\%idnums,\%idlist_titles);
213: my ($scripttext,$longtitles) = &Apache::courseclassifier::javascript_definitions(\@codetitles,\%idlist,\%idlist_titles,\%idnums,\%cat_titles);
214: my $longtitles_str = join('","',@{$longtitles});
215: my $allidlist = $idlist{$codetitles[0]};
216: $numtitles = @codetitles;
217: $lasttitle = $numtitles;
218: if ($numtitles > 4) {
219: $lasttitle = 4;
220: }
221: if ($numtitles == 0) {
222: if (!defined($env{'form.state'})) {
223: $env{'form.state'} = 'listing';
224: }
225: } else {
226: my @data = ('top');
227: for (my $k=0; $k<$lasttitle; $k++) {
228: my $cat = $codetitles[$k];
229: my $level = 1;
230: $level = &recurse_options($codetitles[$k],$idlist{$codetitles[$k]},$level,$cat,\%cat_items,\@data,\%by_year,\%by_sem,\%by_dept);
231: }
232: $scripttext .= &build_javascript(\%by_year,\%by_sem,\%by_dept,\%cat_order,\@codetitles);
233: $jscript .= &javascript_select_filler($formname,$scripttext,\@codetitles,$longtitles_str,$allidlist);
234: if ($env{'form.state'} eq 'listing') {
235: $jscript .= '
236: function setElements() {
237: ';
238: for (my $i=0; $i<@codetitles-1; $i++) {
239: if ($env{'form.'.$codetitles[$i]} != -1) {
240: $jscript .= '
241: for (var j=0; j<document.'.$formname.'.'.$codetitles[$i].'.length; j++) {
242: if (document.'.$formname.'.'.$codetitles[$i].'[j].value == "'.$env{'form.'.$codetitles[$i]}.'") {
243: document.'.$formname.'.'.$codetitles[$i].'.selectedIndex = j;
244: }
245: }
246: ';
247: }
248: }
249: $jscript .= ' courseSet()'."\n";
250: if ($env{'form.'.$codetitles[-1]} != -1) {
251: $jscript .= '
252: for (var j=0; j<document.'.$formname.'.'.$codetitles[-1].'.length; j++) {
253: if (document.'.$formname.'.'.$codetitles[-1].'[j].value == "'.$env{'form.'.$codetitles[-1]}.'") {
254: document.'.$formname.'.'.$codetitles[-1].'.selectedIndex = j;
255: }
256: }
257: ';
258: }
259: $jscript .= '}';
260: }
261: }
262: }
263: $js = '<script type"text/javascript">'."\n$jscript\n$catjs\n".
264: '</script>';
265: if (($env{'form.state'} eq 'listing') && ($numtitles > 0)) {
266: $add_entries{'onLoad'} = 'setElements()';
267: }
268: &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles);
269: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
270: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
271: '<input type="hidden" name="catalog_maxdepth" value="'.$cat_maxdepth.'" />'."\n".
272: '<input type="hidden" name="showdom" value="'.$env{'form.showdom'}.'" />'."\n".
273: '<input type="hidden" name="currcat_0" value="instcode::0" />'.
274: &additional_filters($codedom));
275: if ($numtitles > 0) {
276: $r->print('<b>'.&mt('Choose which course(s) to list.').'</b><br />');
277: $r->print('<table><tr>');
278: for (my $k=0; $k<$lasttitle-1; $k++) {
279: my (@items,@unsorted);
280: if (ref($cat_items{$codetitles[$k]}) eq 'ARRAY') {
281: @unsorted = @{$cat_items{$codetitles[$k]}};
282: }
283: &Apache::courseclassifier::sort_cats($k,\%cat_order,\@codetitles,\@unsorted,\@items);
284: my @longitems;
285: if (defined($cat_titles{$codetitles[$k]})) {
286: foreach my $item (@items) {
287: push(@longitems,$cat_titles{$codetitles[$k]}{$item});
288: }
289: } else {
290: @longitems = @items;
291: }
292: $r->print('<td align="center">'.$codetitles[$k].'<br />'."\n".
293: '<select name="'.$codetitles[$k].'" onChange="courseSet()"');
294: $r->print('>'."\n".'<option value="0" />All'."\n");
295: for (my $i=0; $i<@items; $i++) {
296: if ($longitems[$i] eq '') {
297: $longitems[$i] = $items[$i];
298: }
299: $r->print(' <option value="'.$items[$i].'">'.$longitems[$i].'</option>');
300: }
301: $r->print('</select></td>');
302: }
303: $r->print('<td align="center">'.$codetitles[$lasttitle-1].'<br />'."\n".
304: '<select name="'.$codetitles[$lasttitle-1].'">'."\n".
305: '<option value="0">All'."\n".
306: '</option>'."\n".'</select>'."\n".
307: '</td></tr></table>'."\n");
308: if ($numtitles > 4) {
309: $r->print('<br /><br />'.$codetitles[$numtitles-1].'<br />'."\n".
310: '<input type="text" name="'.$codetitles[$numtitles-1].'" /><br />'."\n");
311: }
312: $r->print('<br />');
313: }
314: $r->print('<input type="hidden" name="coursenum" value="" />'."\n".
315: '<input type="hidden" name="sortby" value="" />'."\n".
316: '<input type="hidden" name="state" value="listing" />'."\n".
317: '<input type="hidden" name="form.currcat_0" value="instcode::0" />'."\n".
318: '<input type="submit" name="catalogfilter" value="'.
319: &mt('Display courses').'" />'.
320: '<input type="hidden" name="numtitles" value="'.$numtitles.
321: '" /></form><br /><br />');
322: } else {
323: &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles);
324: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
325: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
326: '<input type="hidden" name="catalog_maxdepth" value="'.$cat_maxdepth.'" />'.
327: '<input type="hidden" name="showdom" value="'.$env{'form.showdom'}.'" />'.
328: '<input type="hidden" name="currcat_0" value="instcode::0" />');
329: $r->print('<br />'.&mt('No official courses to display for [_1].',$domdesc).'</form>');
330: }
331: return $numtitles;
332: }
333:
334: sub cat_header {
335: my ($r,$codedom,$js,$add_entries,$catlinks,$numtitles) = @_;
336: my $start_page =
337: &Apache::loncommon::start_page('Course Catalog',$js,
338: {
339: 'add_entries' => $add_entries,
340: 'no_inline_link' => 1,});
341: $r->print($start_page);
342: if ($env{'form.state'} eq 'listing') {
343: if ($numtitles > 0) {
344: &Apache::lonhtmlcommon::add_breadcrumb
345: ({href=>"/adm/coursecatalog",
346: text=>"Select courses"},
347: {text=>"Course listing"});
348: } else {
349: &Apache::lonhtmlcommon::add_breadcrumb
350: ({text=>"Course listing"});
351: }
352: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course Listing'));
353: } else {
354: &Apache::lonhtmlcommon::add_breadcrumb
355: ({href=>"/adm/coursecatalog",
356: text=>"Select courses"});
357: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Select courses'));
358: }
359: $r->print('<form name="coursecatdom" method="post" action="/adm/coursecatalog">'.
360: '<table border="0"><tr><td><b>'.&mt('Domain:').'</b></td><td>'.
361: &Apache::loncommon::select_dom_form($codedom,'showdom','',1).
362: ' <input type="submit" name="godom" value="'.&mt('Change').'" /></td></tr></table></form>'.
363: '<form name="coursecats" method="post" action="/adm/coursecatalog">'.
364: '<table border="0"><tr>'.$catlinks.'</tr></table></form>');
365: return;
366: }
367:
368: sub category_breadcrumbs {
369: my ($dom,@cats) = @_;
370: my ($currdepth,$deeper) = &get_depth_values();
371: my $currcat_str = '<input type="hidden" name="catalog_maxdepth" value="'.$deeper.'" /><input type="hidden" name="showdom" value="'.$dom.'" />';
372: my $catlinks = '<td valign="top"><b>'.&mt('Catalog:').'</b></td><td><table><tr>';
373: my $has_subcats;
374: for (my $i=0; $i<$deeper; $i++) {
375: $currcat_str .= '<input type="hidden" name="currcat_'.$i.'" value="'.$env{'form.currcat_'.$i}.'" />';
376: my ($cattitle,$shallower);
377: if ($i == 0) {
378: $cattitle = &mt('Main Categories');
379: } else {
380: $shallower = $i-1;
381: my ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$shallower});
382: $cattitle = $cat;
383: }
384: $catlinks .= '<td valign="top"><a href="javascript:setCatDepth('."'$shallower'".')">'.$cattitle.'</a>-></td>';
385: }
386: if ($deeper == 0) {
387: $catlinks .= '<td>'.&mt('Main Categories').': ';
388: if (ref($cats[0]) eq 'ARRAY') {
389: if ((@{$cats[0]} == 1) && ($cats[0][0] eq 'instcode')) {
390: $catlinks .= &mt('Official courses (with institutional codes)').
391: '<input type="hidden" name="currcat_0" value="instcode::0" />';
392: $env{'form.currcat_0'} = 'instcode::0';
393: } else {
394: $has_subcats = 1;
395: $catlinks .= '<select name="currcat_0">'."\n";
396: if (@{$cats[0]} > 1) {
397: my $selstr;
398: if ($env{'form.currcat_0'} eq '') {
399: $selstr = ' selected="selected" ';
400: }
401: $catlinks .= '<option value="" selected="selected">'.&mt('Select').'</option>'."\n";
402: }
403: for (my $i=0; $i<@{$cats[0]}; $i++) {
404: my $name = $cats[0][$i];
405: my $item = &escape($name).'::0';
406: $catlinks .= '<option value="'.$item.'">';
407: if ($name eq 'instcode') {
408: $catlinks .= &mt('Official courses (with institutional codes)');
409: } else {
410: $catlinks .= $name;
411: }
412: $catlinks .= '</option>'."\n";
413: }
414: $catlinks .= '</select>'."\n".
415: ' <input type="submit" name="gocats" value="'.&mt('Change').'" />';
416: }
417: } else {
418: $catlinks .= &mt('Official courses (with institutional codes)').
419: '<input type="hidden" name="currcat_0" value="instcode::0" />';
420: $env{'form.currcat_0'} = 'instcode::0';
421: }
422: } else {
423: my ($cat,$container,$depth);
424: if ($env{'form.currcat_'.$currdepth} eq '') {
425: my $shallower = $currdepth - 1;
426: ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$shallower});
427: } else {
428: ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$currdepth});
429: }
430: my $deeper = $depth +1;
431: my $currcat = $cat;
432: if ($cat eq 'instcode') {
433: $currcat = &mt('Official courses (with institutional codes)');
434: }
435: $catlinks .= '<td>'.$currcat;
436: if (ref($cats[$deeper]{$cat}) eq 'ARRAY') {
437: $has_subcats = 1;
438: my $selstr;
439: $catlinks .= ': <select name="currcat_'.$deeper.'">'.
440: '<option value="" selected="selected">'.
441: &mt('Select').'</option>';
442: for (my $k=0; $k<@{$cats[$deeper]{$cat}}; $k++) {
443: my $name = $cats[$deeper]{$cat}[$k];
444: my $item = &escape($name).':'.&escape($cat).':'.$deeper;
445: $catlinks .= '<option value="'.$item.'">'.$name.'</option>'."\n";
446: }
447: $catlinks .= '</select>'."\n".
448: ' <input type="submit" name="gocats" value="'.&mt('Change').'" />';
449: }
450: }
451: $catlinks .= $currcat_str.'</td></tr></table></td>';
452: return ($catlinks,$has_subcats);
453: }
454:
455: sub get_depth_values {
456: my $currdepth = 0;
457: my $deeper = 0;
458: if ($env{'form.catalog_maxdepth'} ne '') {
459: $currdepth = $env{'form.catalog_maxdepth'};
460: if ($env{'form.currcat_'.$currdepth} eq '') {
461: $deeper = $currdepth;
462: } else {
463: $deeper = $currdepth + 1;
464: }
465: }
466: return ($currdepth,$deeper);
467: }
468:
469: sub additional_filters {
470: my ($codedom,$has_subcats) = @_;
471: my $output = '<table>';
472: if (($env{'form.currcat_0'} ne 'instcode::0') &&
473: ($env{'form.currcat_0'} ne '') && ($has_subcats)) {
474: my $include_subcat_status;
475: if ($env{'form.withsubcats'}) {
476: $include_subcat_status = 'checked="checked" ';
477: }
478: my $counter = $env{'form.catalog_maxdepth'};
479: if ($counter > 0) {
480: if ($env{'form.state'} eq 'listing') {
481: $counter --;
482: } elsif ($env{'form.currcat_'.$counter} eq '') {
483: $counter --;
484: }
485: }
486: my ($catname) = split(/:/,$env{'form.currcat_'.$counter});
487: if ($catname ne '') {
488: $output .= '<tr><td><label>'.
489: '<input type="checkbox" name="withsubcats" value="1" '.
490: $include_subcat_status.'/>'.
491: &mt('Include subcategories within "[_1]"',
492: &unescape($catname)).'</label></td></tr>';
493: }
494: }
495: my $show_selfenroll_status;
496: if ($env{'form.showselfenroll'}) {
497: $show_selfenroll_status = 'checked="checked" ';
498: }
499: $output .= '<tr><td>'.
500: '<label><input type="checkbox" name="showselfenroll" value="1" '.
501: $show_selfenroll_status.'/>'.
502: &mt('Only show courses which allow self-enrollment').
503: '</label></td></tr>';
504: if (&user_is_dc($codedom)) {
505: my $showdetails_status;
506: if ($env{'form.showdetails'}) {
507: $showdetails_status = 'checked="checked" ';
508: }
509: my $showhidden_status;
510: if ($env{'form.showhidden'}) {
511: $showhidden_status = 'checked="checked" ';
512: }
513: my $dc_title = &Apache::lonnet::plaintext('dc');
514: $output .= '<tr><td>'."\n".
515: '<label><input type="checkbox" name="showdetails" value="1" '.
516: $showdetails_status.'/>'.
517: &mt('Show full details for each course ([_1] only)',$dc_title).
518: '</label>'."\n".'</td></tr><tr><td>'.
519: '<label><input type="checkbox" name="showhidden" value="1" '.
520: $showhidden_status.'/>'.
521: &mt('Include courses set to be hidden from catalog ([_1] only)',$dc_title).
522: '</label>'."\n".'</td></tr>';
523: }
524: $output .= '</table><br />';
525: return $output;
526: }
527:
528: sub user_is_dc {
529: my ($codedom) = @_;
530: if (exists($env{'user.role.dc./'.$codedom.'/'})) {
531: my $livedc = 1;
532: my $now = time;
533: my ($start,$end)=split(/\./,$env{'user.role.dc./'.$codedom.'/'});
534: if ($start && $start>$now) { $livedc = 0; }
535: if ($end && $end <$now) { $livedc = 0; }
536: return $livedc;
537: }
538: return;
539: }
540:
541: sub recurse_options {
542: my ($currkey,$currlist,$level,$cat,$cat_options,$data,$by_year,$by_sem,$by_dept) = @_;
543: if (ref($currlist) eq 'HASH') {
544: $level ++;
545: foreach my $key (sort(keys(%{$currlist}))) {
546: $$data[$level-1]= $key;
547: &recurse_options($key,$currlist->{$key},$level,$cat,$cat_options,$data,$by_year,$by_sem,$by_dept);
548: }
549: } else {
550: $level --;
551: my @contents = split(/","/,$currlist);
552: foreach my $item (@contents) {
553: if (!grep(/^\Q$item\E$/,@{$cat_options->{$cat}})) {
554: push(@{$cat_options->{$cat}},$item);
555: }
556: if ($level == 3) {
557: if (!grep/^\Q$item\E$/,@{$by_year->{$data->[1]}->{$currkey}}) {
558: push(@{$by_year->{$data->[1]}->{$currkey}},$item);
559: }
560: if (!grep/^\Q$item\E$/,@{$by_sem->{$data->[2]}->{$currkey}}) {
561: push(@{$by_sem->{$data->[2]}->{$currkey}},$item);
562: }
563: if (!grep/^\Q$item\E$/,@{$by_dept->{$currkey}}) {
564: push(@{$by_dept->{$currkey}},$item);
565: }
566:
567: }
568: }
569: }
570: return $level;
571: }
572:
573: sub build_javascript {
574: my ($by_year,$by_sem,$by_dept,$cat_order,$codetitles) = @_;
575: my @unsorted = keys(%{$by_year});
576: my @sorted_yrs;
577: &Apache::courseclassifier::sort_cats('0',$cat_order,$codetitles,\@unsorted,\@sorted_yrs);
578: my $output = 'var idcse_by_yr_year = new Array("'.join('","',@sorted_yrs).'");'."\n".
579: 'var idcse_by_yr_dept = new Array('.scalar(@sorted_yrs).');'."\n".
580: 'var idcse_by_yr_num = new Array('.scalar(@sorted_yrs).');'."\n";
581: for (my $i=0; $i<@sorted_yrs; $i++) {
582: my $numkeys = keys(%{$by_year->{$sorted_yrs[$i]}});
583: $output .= " idcse_by_yr_num[$i] = new Array($numkeys);\n";
584: if (ref($by_year->{$sorted_yrs[$i]}) eq 'HASH') {
585: @unsorted = keys(%{$by_year->{$sorted_yrs[$i]}});
586: my @sorted_depts;
587: &Apache::courseclassifier::sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_depts);
588: $output .= qq| idcse_by_yr_dept[$i] = new Array ("|.join('","',@sorted_depts).'");'."\n";
589: for (my $j=0; $j<@sorted_depts; $j++) {
590: $output .= qq| idcse_by_yr_num[$i][$j] = new Array ("|;
591: $output .= join('","',sort(@{$by_year->{$sorted_yrs[$i]}->{$sorted_depts[$j]}})).'");'."\n";
592: }
593: }
594: }
595: @unsorted = keys(%{$by_sem});
596: my @sorted_sems;
597: &Apache::courseclassifier::sort_cats('1',$cat_order,$codetitles,\@unsorted,\@sorted_sems);
598: $output .= 'idcse_by_sem_sems = new Array("'.join('","',@sorted_sems).'");'."\n".
599: 'idcse_by_sem_dept = new Array('.scalar(@sorted_sems).');'."\n".
600: 'idcse_by_sem_num = new Array('.scalar(@sorted_sems).');'."\n";
601: for (my $i=0; $i<@sorted_sems; $i++) {
602: my $numkeys = keys(%{$by_sem->{$sorted_sems[$i]}});
603: $output .= " idcse_by_sem_num[$i] = new Array($numkeys);\n";
604: if (ref($by_sem->{$sorted_sems[$i]}) eq 'HASH') {
605: @unsorted = keys(%{$by_sem->{$sorted_sems[$i]}});
606: my @sorted_depts;
607: &Apache::courseclassifier::sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_depts);
608: $output .= qq| idcse_by_sem_dept[$i] = new Array("|.join('","',@sorted_depts).'");'."\n";
609: for (my $j=0; $j<@sorted_depts; $j++) {
610: $output .= qq| idcse_by_sem_num[$i][$j] = new Array ("|.join('","',sort(@{$by_sem->{$sorted_sems[$i]}->{$sorted_depts[$j]}})).'");'."\n";
611: }
612: }
613: }
614: @unsorted = keys(%{$by_dept});
615: my @sorted_deps;
616: &Apache::courseclassifier::sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_deps);
617: $output .= 'idcse_by_dep = new Array('.scalar(@sorted_deps).');'."\n";
618: for (my $k=0; $k<@sorted_deps; $k++) {
619: $output .= qq| idcse_by_dep[$k] = new Array ("|.join('","',sort(@{$by_dept->{$sorted_deps[$k]}})).'");'."\n";
620: }
621: return $output;
622: }
623:
624: sub search_official_courselist {
625: my ($domain,$numtitles) = @_;
626: my $instcode;
627: if (defined($numtitles) && $numtitles == 0) {
628: $instcode = '.+';
629: } else {
630: my (%codedefaults,@code_order);
631: my $defaults_result =
632: &Apache::lonnet::auto_instcode_defaults($domain,\%codedefaults,
633: \@code_order);
634: if ($defaults_result eq 'ok') {
635: $instcode ='^';
636: foreach my $item (@code_order) {
637: if ($env{'form.'.$item} eq '0' ) {
638: $instcode .= $codedefaults{$item};
639: } else {
640: $instcode .= $env{'form.'.$item};
641: }
642: }
643: $instcode .= '$';
644: } else {
645: $instcode = '.';
646: }
647: }
648: my $showhidden;
649: if (&user_is_dc($domain)) {
650: $showhidden = $env{'form.showhidden'};
651: }
652: my %courses =
653: &Apache::lonnet::courseiddump($domain,'.',1,$instcode,'.','.',undef,undef,
654: 'Course',1,$env{'form.showselfenroll'},undef,
655: $showhidden,'coursecatalog');
656: return %courses;
657: }
658:
659: sub search_courselist {
660: my ($domain,$subcats) = @_;
661: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
662: my $filter = $env{'form.currcat_'.$cat_maxdepth};
663: if (($filter eq '') && ($cat_maxdepth > 0)) {
664: my $shallower = $cat_maxdepth - 1;
665: $filter = $env{'form.currcat_'.$shallower};
666: }
667: my %courses;
668: my $filterstr;
669: if ($filter ne '') {
670: if ($env{'form.withsubcats'}) {
671: if (ref($subcats) eq 'HASH') {
672: if (ref($subcats->{$filter}) eq 'ARRAY') {
673: $filterstr = join('&',@{$subcats->{$filter}});
674: if ($filterstr ne '') {
675: $filterstr = $filter.'&'.$filterstr;
676: }
677: } else {
678: $filterstr = $filter;
679: }
680: } else {
681: $filterstr = $filter;
682: }
683: } else {
684: $filterstr = $filter;
685: }
686: my $showhidden;
687: if (&user_is_dc($domain)) {
688: $showhidden = $env{'form.showhidden'};
689: }
690: %courses =
691: &Apache::lonnet::courseiddump($domain,'.',1,'.','.','.',undef,undef,
692: '.',1,$env{'form.showselfenroll'},
693: $filterstr,$showhidden,'coursecatalog');
694: }
695: return %courses;
696: }
697:
698: sub print_course_listing {
699: my ($domain,$numtitles,$trails,$allitems,$subcats) = @_;
700: my $output;
701: my %courses;
702: my $knownuser = &user_is_known();
703: my $details = $env{'form.coursenum'};
704: if (&user_is_dc($domain)) {
705: if ($env{'form.showdetails'}) {
706: $details = 1;
707: }
708: }
709: if ($env{'form.coursenum'} ne '') {
710: %courses = &Apache::lonnet::courseiddump($domain,'.',1,'.','.',
711: $env{'form.coursenum'},
712: undef,undef,'.',1);
713: if (keys(%courses) == 0) {
714: $output .= &mt('The courseID provided does not match a course in this domain.');
715: return $output;
716: }
717: } else {
718: if ($env{'form.currcat_0'} eq 'instcode::0') {
719: %courses = &search_official_courselist($domain,$numtitles);
720: } else {
721: %courses = &search_courselist($domain,$subcats);
722: }
723: if (keys(%courses) == 0) {
724: $output = &mt('No courses match the criteria you selected.');
725: return $output;
726: }
727: if (($knownuser) && (!$env{'form.showdetails'}) && (!&user_is_dc($domain))) {
728: $output = '<b>'.&mt('Note for students:').'</b> '
729: .&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.')
730: .'<br /><br />';
731: }
732: }
733: my $now = time;
734: my %domconfig =
735: &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
736: $output .= &construct_data_table($knownuser,\%courses,$details,undef,$now,\%domconfig,$trails,$allitems);
737: if ($env{'form.coursenum'} ne '') {
738: $output .= &Apache::lonhtmlcommon::echo_form_input(['coursenum','state','catalogfilter','sortby','showdetails']);
739: }
740: return $output;
741: }
742:
743: sub construct_data_table {
744: my ($knownuser,$courses,$details,$usersections,$now,$domconfig,$trails,
745: $allitems) = @_;
746: my %sortname;
747: if (($details eq '') || ($env{'form.showdetails'})) {
748: $sortname{'Code'} = 'code';
749: $sortname{'Categories'} = 'cats';
750: $sortname{'Title'} = 'title';
751: $sortname{'Owner(s)'} = 'owner';
752: }
753: my $output = &Apache::loncommon::start_data_table().
754: &Apache::loncommon::start_data_table_header_row();
755: my @coltitles = ('Count');
756: if ($env{'form.currcat_0'} eq 'instcode::0') {
757: push(@coltitles,'Code');
758: } else {
759: push(@coltitles,'Categories');
760: }
761: push(@coltitles,('Sections','Crosslisted','Title','Owner(s)'));
762: if (ref($usersections) eq 'HASH') {
763: $coltitles[1] = 'Your Section';
764: }
765: foreach my $item (@coltitles) {
766: $output .= '<th>';
767: if (defined($sortname{$item})) {
768: $output .= '<a href="javascript:changeSort('."'$sortname{$item}'".')">'.&mt($item).'</a>';
769: } elsif ($item eq 'Count') {
770: $output .= ' ';
771: } else {
772: $output .= &mt($item);
773: }
774: $output .= '</th>';
775: }
776: if ($knownuser) {
777: if ($details) {
778: $output .=
779: '<th>'.&mt('Default Access Dates for Students').'</th>'.
780: '<th>'.&mt('Student Counts').'</th>'.
781: '<th>'.&mt('Auto-enrollment of <br />registered students').'</th>';
782: } else {
783: $output .= '<th>'.&mt('Details').'</th>';
784: }
785: }
786: $output .= '<th>'.&mt('Self-enroll (if permitted)').'</th>';
787: &Apache::loncommon::end_data_table_header_row();
788: my %courseinfo = &build_courseinfo_hash($courses,$knownuser,$details,
789: $usersections);
790: my %Sortby;
791: foreach my $course (sort(keys(%{$courses}))) {
792: if ($env{'form.sortby'} eq 'code') {
793: push(@{$Sortby{$courseinfo{$course}{'code'}}},$course);
794: } elsif ($env{'form.sortby'} eq 'cats') {
795: push(@{$Sortby{$courseinfo{$course}{'categories'}}},$course);
796: } elsif ($env{'form.sortby'} eq 'owner') {
797: push(@{$Sortby{$courseinfo{$course}{'ownerlastnames'}}},$course);
798: } else {
799: my $clean_title = $courseinfo{$course}{'title'};
800: $clean_title =~ s/\W+//g;
801: if ($clean_title eq '') {
802: $clean_title = $courseinfo{$course}{'title'};
803: }
804: push(@{$Sortby{$clean_title}},$course);
805: }
806: }
807: my @sorted_courses;
808: if (($env{'form.sortby'} eq 'code') || ($env{'form.sortby'} eq 'owner') ||
809: ($env{'form.sortby'} eq 'cats')) {
810: @sorted_courses = sort(keys(%Sortby));
811: } else {
812: @sorted_courses = sort { lc($a) cmp lc($b) } (keys(%Sortby));
813: }
814: my $count = 1;
815: foreach my $item (@sorted_courses) {
816: foreach my $course (@{$Sortby{$item}}) {
817: $output.=&Apache::loncommon::start_data_table_row();
818: $output.=&courseinfo_row($courseinfo{$course},$knownuser,$details,
819: \$count,$now,$course,$trails,$allitems);
820: $output.=&Apache::loncommon::end_data_table_row();
821: }
822: }
823: $output .= &Apache::loncommon::end_data_table();
824: return $output;
825: }
826:
827: sub build_courseinfo_hash {
828: my ($courses,$knownuser,$details,$usersections) = @_;
829: my %courseinfo;
830: my $now = time;
831: foreach my $course (keys(%{$courses})) {
832: my $descr;
833: if (ref($courses->{$course}) eq 'HASH') {
834: $descr = $courses->{$course}{'description'};
835: }
836: my $cleandesc=&HTML::Entities::encode($descr,'<>&"');
837: $cleandesc=~s/'/\\'/g;
838: $cleandesc =~ s/^\s+//;
839: my ($cdom,$cnum)=split(/\_/,$course);
840: my ($descr,$instcode,$singleowner,$ttype,$selfenroll_types,
841: $selfenroll_start,$selfenroll_end,@owners,%ownernames,$categories);
842: if (ref($courses->{$course}) eq 'HASH') {
843: $descr = $courses->{$course}{'description'};
844: $instcode = $courses->{$course}{'inst_code'};
845: $singleowner = $courses->{$course}{'owner'};
846: $ttype = $courses->{$course}{'type'};
847: $selfenroll_types = $courses->{$course}{'selfenroll_types'};
848: $selfenroll_start = $courses->{$course}{'selfenroll_start_date'};
849: $selfenroll_end = $courses->{$course}{'selfenroll_end_date'};
850: $categories = $courses->{$course}{'categories'};
851: push(@owners,$singleowner);
852: if (ref($courses->{$course}{'co-owners'}) eq 'ARRAY') {
853: foreach my $item (@{$courses->{$course}{'co-owners'}}) {
854: push(@owners,$item);
855: }
856: }
857: }
858: foreach my $owner (@owners) {
859: my ($ownername,$ownerdom) = @_;
860: if ($owner =~ /:/) {
861: ($ownername,$ownerdom) = split(/:/,$owner);
862: } else {
863: $ownername = $owner;
864: if ($owner ne '') {
865: $ownerdom = $cdom;
866: }
867: }
868: if ($ownername ne '' && $ownerdom ne '') {
869: my %namehash=&Apache::loncommon::getnames($ownername,$ownerdom);
870: $ownernames{$ownername.':'.$ownerdom} = \%namehash;
871: }
872: }
873: $courseinfo{$course}{'cdom'} = $cdom;
874: $courseinfo{$course}{'cnum'} = $cnum;
875: $courseinfo{$course}{'code'} = $instcode;
876: my @lastnames;
877: foreach my $owner (keys(%ownernames)) {
878: if (ref($ownernames{$owner}) eq 'HASH') {
879: push(@lastnames,$ownernames{$owner}{'lastname'});
880: }
881: }
882: $courseinfo{$course}{'ownerlastnames'} = join(', ',sort(@lastnames));
883: $courseinfo{$course}{'title'} = $cleandesc;
884: $courseinfo{$course}{'owner'} = $singleowner;
885: $courseinfo{$course}{'selfenroll_types'} = $selfenroll_types;
886: $courseinfo{$course}{'selfenroll_start'} = $selfenroll_start;
887: $courseinfo{$course}{'selfenroll_end'} = $selfenroll_end;
888: $courseinfo{$course}{'categories'} = $categories;
889:
890: my %coursehash = &Apache::lonnet::dump('environment',$cdom,$cnum);
891: my @classids;
892: my @crosslistings;
893: my ($seclist,$numsec) =
894: &identify_sections($coursehash{'internal.sectionnums'});
895: if (ref($usersections) eq 'HASH') {
896: if (ref($usersections->{$course}) eq 'ARRAY') {
897: $seclist = join(', ',@{$usersections->{$course}});
898: }
899: }
900: $courseinfo{$course}{'seclist'} = $seclist;
901: my ($xlist_items,$numxlist) =
902: &identify_sections($coursehash{'internal.crosslistings'});
903: my $showsyllabus = 1; # default is to include a syllabus link
904: if (defined($coursehash{'showsyllabus'})) {
905: $showsyllabus = $coursehash{'showsyllabus'};
906: }
907: $courseinfo{$course}{'showsyllabus'} = $showsyllabus;
908: if (((defined($env{'form.coursenum'}) && ($cnum eq $env{'form.coursenum'}))) ||
909: ($knownuser && ($details == 1))) {
910: $courseinfo{$course}{'counts'} = &count_students($cdom,$cnum,$numsec);
911: $courseinfo{$course}{'autoenrollment'} =
912: &autoenroll_info(\%coursehash,$now,$seclist,$xlist_items,
913: $instcode,\@owners,$cdom,$cnum);
914:
915: my $startaccess = '';
916: my $endaccess = '';
917: my $accessdates;
918: if ( defined($coursehash{'default_enrollment_start_date'}) ) {
919: $startaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_start_date'});
920: }
921: if ( defined($coursehash{'default_enrollment_end_date'}) ) {
922: $endaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_end_date'});
923: if ($coursehash{'default_enrollment_end_date'} == 0) {
924: $endaccess = &mt('No ending date');
925: }
926: }
927: if ($startaccess) {
928: $accessdates .= &mt('<i>From:</i> ').$startaccess.'<br />';
929: }
930: if ($endaccess) {
931: $accessdates .= &mt('<i>To:</i> ').$endaccess.'<br />';
932: }
933: if (($selfenroll_types ne '') &&
934: ($selfenroll_end > 0 && $selfenroll_end > $now)) {
935: my ($selfenroll_start_access,$selfenroll_end_access);
936: if (($coursehash{'default_enrollment_start_date'} ne
937: $coursehash{'internal.selfenroll_start_access'}) ||
938: ($coursehash{'default_enrollment_end_date'} ne
939: $coursehash{'internal.selfenroll_end_access'})) {
940: if ( defined($coursehash{'internal.selfenroll_start_access'}) ) {
941: $selfenroll_start_access = &Apache::lonlocal::locallocaltime($coursehash{'internal.selfenroll_start_access'});
942: }
943: if ( defined($coursehash{'default_enrollment_end_date'}) ) {
944: $selfenroll_end_access = &Apache::lonlocal::locallocaltime($coursehash{'internal.selfenroll_end_access'});
945: if ($coursehash{'internal.selfenroll_end_access'} == 0) {
946: $selfenroll_end_access = &mt('No ending date');
947: }
948: }
949: if ($selfenroll_start_access || $selfenroll_end_access) {
950: $accessdates .= '<br/><br /><i>'.&mt('Self-enrollers:').'</i><br />';
951: if ($selfenroll_start_access) {
952: $accessdates .= &mt('<i>From:</i> ').$selfenroll_start_access.'<br />';
953: }
954: if ($selfenroll_end_access) {
955: $accessdates .= &mt('<i>To:</i> ').$selfenroll_end_access.'<br />';
956: }
957: }
958: }
959: }
960: $courseinfo{$course}{'access'} = $accessdates;
961: }
962: if ($xlist_items eq '') {
963: $xlist_items = &mt('No');
964: }
965: $courseinfo{$course}{'xlist'} = $xlist_items;
966: }
967: return %courseinfo;
968: }
969:
970: sub count_students {
971: my ($cdom,$cnum,$numsec) = @_;
972: my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cnum);
973: my %student_count = (
974: Active => 0,
975: Future => 0,
976: Expired => 0,
977: );
978: my %idx;
979: $idx{'status'} = &Apache::loncoursedata::CL_STATUS();
980: my %status_title = &Apache::lonlocal::texthash(
981: Expired => 'Previous access',
982: Active => 'Current access',
983: Future => 'Future access',
984: );
985:
986: while (my ($student,$data) = each(%$classlist)) {
987: $student_count{$data->[$idx{'status'}]} ++;
988: }
989:
990: my $countslist = &mt('[quant,_1,section]',$numsec).':<br />';
991: foreach my $status ('Active','Future') {
992: $countslist .= '<nobr>'.$status_title{$status}.': '.
993: $student_count{$status}.'</nobr><br />';
994: }
995: return $countslist;
996: }
997:
998: sub courseinfo_row {
999: my ($info,$knownuser,$details,$countref,$now,$course,$trails,$allitems) = @_;
1000: my ($cdom,$cnum,$title,$ownerlast,$code,$owner,$seclist,$xlist_items,
1001: $accessdates,$showsyllabus,$counts,$autoenrollment,$output,$categories);
1002: if (ref($info) eq 'HASH') {
1003: $cdom = $info->{'cdom'};
1004: $cnum = $info->{'cnum'};
1005: $title = $info->{'title'};
1006: $ownerlast = $info->{'ownerlastnames'};
1007: $code = $info->{'code'};
1008: $owner = $info->{'owner'};
1009: $seclist = $info->{'seclist'};
1010: $xlist_items = $info->{'xlist'};
1011: $accessdates = $info->{'access'};
1012: $counts = $info->{'counts'};
1013: $autoenrollment = $info->{'autoenrollment'};
1014: $showsyllabus = $info->{'showsyllabus'};
1015: $categories = $info->{'categories'};
1016: } else {
1017: $output = '<td colspan="8">'.&mt('No information available for [_1].',
1018: $code).'</td>';
1019: return $output;
1020: }
1021: $output .= '<td>'.$$countref.'</td>';
1022: if ($env{'form.currcat_0'} eq 'instcode::0') {
1023: $output .= '<td>'.$code.'</td>';
1024: } else {
1025: my ($categorylist,@cats);
1026: if ($categories ne '') {
1027: @cats = split('&',$categories);
1028: }
1029: if ((ref($trails) eq 'ARRAY') && (ref($allitems) eq 'HASH')) {
1030: my @categories = map { $trails->[$allitems->{$_}]; } @cats;
1031: $categorylist = join('<br />',@categories);
1032: }
1033: if ($categorylist eq '') {
1034: $categorylist = ' ';
1035: }
1036: $output .= '<td>'.$categorylist.'</td>';
1037: }
1038: $output .= '<td>'.$seclist.'</td>'.
1039: '<td>'.$xlist_items.'</td>'.
1040: '<td>'.$title.' <font size="-2">';
1041: if ($showsyllabus) {
1042: $output .= &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$cnum,$cdom);
1043: } else {
1044: $output .= ' ';
1045: }
1046: $output .= '</font></td>'.
1047: '<td>'.$ownerlast.'</td>';
1048: if ($knownuser) {
1049: if ($details) {
1050: $output .=
1051: '<td>'.$accessdates.'</td>'.
1052: '<td>'.$counts.'</td>'.
1053: '<td>'.$autoenrollment.'</td>';
1054: } else {
1055: $output .= "<td><a href=\"javascript:setCourseId('$cnum')\">".&mt('Show more details').'</a></td>';
1056: }
1057: }
1058: my $selfenroll;
1059: if ($info->{'selfenroll_types'}) {
1060: my $showstart = &Apache::lonlocal::locallocaltime($info->{'selfenroll_start'});
1061: my $showend = &Apache::lonlocal::locallocaltime($info->{'selfenroll_end'});
1062: if (($info->{'selfenroll_end'} > 0) && ($info->{'selfenroll_end'} > $now)) {
1063: if (($info->{'selfenroll_start'} > 0) && ($info->{'selfenroll_start'} > $now)) {
1064: $output .= '<td>'.&mt('Starts: [_1]','<span class="LC_cusr_emph">'.$showstart.'</span>').'<br />'.&mt('Ends: [_1]','<span class="LC_cusr_emph">'.$showend.'</span>').'</td>';
1065: } else {
1066: $output .= '<td><a href="/adm/selfenroll?cid='.$course.'">'.&mt('Enroll in course').'</a></td>';
1067: }
1068: $selfenroll = 1;
1069: }
1070: }
1071: if (!$selfenroll) {
1072: $output .= '<td> </td>';
1073: }
1074: $$countref ++;
1075: return $output;
1076: }
1077:
1078: sub identify_sections {
1079: my ($seclist) = @_;
1080: my @secnums;
1081: if ($seclist =~ /,/) {
1082: my @sections = split(/,/,$seclist);
1083: foreach my $sec (@sections) {
1084: $sec =~ s/:[^:]*$//;
1085: push(@secnums,$sec);
1086: }
1087: } else {
1088: if ($seclist =~ m/^([^:]+):/) {
1089: my $sec = $1;
1090: if (!grep(/^\Q$sec\E$/,@secnums)) {
1091: push(@secnums,$sec);
1092: }
1093: }
1094: }
1095: @secnums = sort {$a <=> $b} @secnums;
1096: my $seclist = join(', ',@secnums);
1097: my $numsec = @secnums;
1098: return ($seclist,$numsec);
1099: }
1100:
1101: sub get_valid_classes {
1102: my ($seclist,$xlist_items,$crscode,$owners,$cdom,$cnum) = @_;
1103: my $response;
1104: my %validations;
1105: @{$validations{'sections'}} = ();
1106: @{$validations{'xlists'}} = ();
1107: my $totalitems = 0;
1108: if ($seclist) {
1109: foreach my $sec (split(/, /,$seclist)) {
1110: my $class = $crscode.$sec;
1111: if (&Apache::lonnet::auto_validate_class_sec($cdom,$cnum,$owners,
1112: $class) eq 'ok') {
1113: if (!grep(/^\Q$sec$\E/,@{$validations{'sections'}})) {
1114: push(@{$validations{'sections'}},$sec);
1115: $totalitems ++;
1116: }
1117: }
1118: }
1119: }
1120: if ($xlist_items) {
1121: foreach my $item (split(/, /,$xlist_items)) {
1122: if (&Apache::lonnet::auto_validate_class_sec($cdom,$cnum,$owners,
1123: $item) eq 'ok') {
1124: if (!grep(/^\Q$item$\E/,@{$validations{'xlists'}})) {
1125: push(@{$validations{'xlists'}},$item);
1126: $totalitems ++;
1127: }
1128: }
1129: }
1130: }
1131: if ($totalitems > 0) {
1132: if (@{$validations{'sections'}}) {
1133: $response = &mt('Sections: ').
1134: join(', ',@{$validations{'sections'}}).'<br />';
1135: }
1136: if (@{$validations{'xlists'}}) {
1137: $response .= &mt('Courses: ').
1138: join(', ',@{$validations{'xlists'}});
1139: }
1140: }
1141: return $response;
1142: }
1143:
1144: sub javascript_select_filler {
1145: my ($formname,$scripttext,$codetitles,$longtitles_str,$allidlist) = @_;
1146: my $output = <<END;
1147: function courseSet() {
1148: var longtitles = new Array ("$longtitles_str");
1149: var valyr = document.$formname.Year.options[document.$formname.Year.selectedIndex].value
1150: var valsem = document.$formname.Semester.options[document.$formname.Semester.selectedIndex].value
1151: var valdept = document.$formname.Department.options[document.$formname.Department.selectedIndex].value
1152: var valclass = document.$formname.Number.options[document.$formname.Number.selectedIndex].value
1153: var idyears = new Array("$allidlist");
1154: var idyr = -1;
1155: var idsem = -1;
1156: var iddept = -1;
1157: document.$formname.Number.length = 0;
1158:
1159: $scripttext
1160:
1161: selYear = document.$formname.Year.selectedIndex-1;
1162: selSemester = document.$formname.Semester.selectedIndex-1;
1163: selDepartment = document.$formname.Department.selectedIndex-1;
1164: if (selYear == -1) {
1165: if (selSemester == -1) {
1166: if (selDepartment > -1) {
1167: document.$formname.Number.options[0] = new Option('All','0',false,false);
1168: for (var k=0; k<idcse_by_dep[selDepartment].length; k++) {
1169: document.$formname.Number.options[k+1] = new Option(idcse_by_dep[selDepartment][k],idcse_by_dep[selDepartment][k],false,false);
1170:
1171: }
1172: }
1173: else {
1174: document.$formname.Number.options[0] = new Option("All","0",true,true);
1175: }
1176: }
1177: else {
1178: if (selDepartment > -1) {
1179: for (var i=0; i<idcse_by_sem_sems.length; i++) {
1180: if (idcse_by_sem_sems[i] == valsem) {
1181: idsem = i;
1182: }
1183: }
1184: if (idsem != -1) {
1185: for (var i=0; i<idcse_by_sem_dept[idsem].length; i++) {
1186: if (idcse_by_sem_dept[idsem][i] == valdept) {
1187: iddept = i;
1188: }
1189: }
1190: }
1191: if (iddept != -1) {
1192: document.$formname.Number.options[0] = new Option('All','0',false,false);
1193: for (var k=0; k<idcse_by_sem_num[idsem][iddept].length; k++) {
1194: document.$formname.Number.options[k+1] = new Option(idcse_by_sem_num[idsem][iddept][k],idcse_by_sem_num[idsem][iddept][k],false,false);
1195: }
1196: }
1197: else {
1198: document.$formname.Number.options[0] = new Option('No courses','0',true,true);
1199: }
1200: }
1201: else {
1202: document.$formname.Number.options[0] = new Option("All","0",true,true);
1203: }
1204: }
1205: }
1206: else {
1207: if (selSemester == -1) {
1208: if (selDepartment > -1) {
1209: for (var i=0; i<idcse_by_yr_year.length; i++) {
1210: if (idcse_by_yr_year[i] == valyr) {
1211: idyr = i;
1212: }
1213: }
1214: if (idyr != -1) {
1215: for (var i=0; i<idcse_by_yr_dept[idyr].length; i++) {
1216: if (idcse_by_yr_dept[idyr][i] == valdept) {
1217: iddept = i;
1218: }
1219: }
1220: }
1221: if (iddept != -1) {
1222: document.$formname.Number.options[0] = new Option('All','0',false,false);
1223: for (var k=0; k<idcse_by_yr_num[idyr][iddept].length; k++) {
1224: document.$formname.Number.options[k+1] = new Option(idcse_by_yr_num[idyr][iddept][k],idcse_by_yr_num[idyr][iddept][k],false,false);
1225: }
1226: }
1227: else {
1228: document.$formname.Number.options[0] = new Option('No courses','0',true,true);
1229: }
1230: }
1231: else {
1232: document.$formname.Number.options[0] = new Option("All","0",true,true);
1233: }
1234: }
1235: else {
1236: if (selDepartment > -1) {
1237: for (var k=0; k<idyears.length; k++) {
1238: if (idyears[k] == valyr) {
1239: idyr = k;
1240: }
1241: }
1242: if (idyr != -1) {
1243: for (var k=0; k<idsems[idyr].length; k++) {
1244: if (idsems[idyr][k] == valsem) {
1245: idsem = k;
1246: }
1247: }
1248: }
1249: if (idsem != -1) {
1250: for (var k=0; k<idcodes[idyr][idsem].length; k++) {
1251: if (idcodes[idyr][idsem][k] == valdept) {
1252: iddept = k;
1253: }
1254: }
1255: }
1256: if (iddept != -1) {
1257: document.$formname.Number.options[0] = new Option('All','0',false,false);
1258: for (var i=0; i<idcourses[idyr][idsem][iddept].length; i++) {
1259: var display = idcourses[idyr][idsem][iddept][i];
1260: if (longtitles[3] == 1) {
1261: if (idcourseslongs[idyr][idsem][iddept][i] != "") {
1262: display = idcourseslongs[idyr][idsem][iddept][i]
1263: }
1264: }
1265: document.$formname.Number.options[i+1] = new Option(display,idcourses[idyr][idsem][iddept][i],false,false)
1266: }
1267: }
1268: else {
1269: document.$formname.Number.options[0] = new Option('No courses','0',true,true);
1270: }
1271: }
1272: else {
1273: document.$formname.Number.options[0] = new Option('All','0',true,true);
1274: }
1275: }
1276: document.$formname.Number.selectedIndex = 0
1277: }
1278: }
1279: END
1280: return $output;
1281: }
1282:
1283: sub autoenroll_info {
1284: my ($coursehash,$now,$seclist,$xlist_items,$code,$owners,$cdom,$cnum) = @_;
1285: my $autoenrolldates = &mt('Not enabled');
1286: if (defined($coursehash->{'internal.autoadds'}) && $coursehash->{'internal.autoadds'} == 1) {
1287: my ($autostart,$autoend);
1288: if ( defined($coursehash->{'internal.autostart'}) ) {
1289: $autostart = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autostart'});
1290: }
1291: if ( defined($coursehash->{'internal.autoend'}) ) {
1292: $autoend = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autoend'});
1293: }
1294: if ($coursehash->{'internal.autostart'} > $now) {
1295: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
1296: $autoenrolldates = &mt('Not enabled');
1297: } else {
1298: my $valid_classes =
1299: &get_valid_classes($seclist,$xlist_items,$code,
1300: $owners,$cdom,$cnum);
1301: if ($valid_classes ne '') {
1302: $autoenrolldates = &mt('Not enabled<br />Starts: ').
1303: $autostart.'<br />'.$valid_classes; }
1304: }
1305: } else {
1306: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
1307: $autoenrolldates = &mt('Not enabled<br />Ended: ').$autoend;
1308: } else {
1309: my $valid_classes = &get_valid_classes($seclist,$xlist_items,
1310: $code,$owners,$cdom,$cnum);
1311: if ($valid_classes ne '') {
1312: $autoenrolldates = &mt('Currently enabled<br />').
1313: $valid_classes;
1314: }
1315: }
1316: }
1317: }
1318: return $autoenrolldates;
1319: }
1320:
1321: sub user_is_known {
1322: my $known = 0;
1323: if ($env{'user.name'} ne '' && $env{'user.name'} ne 'public'
1324: && $env{'user.domain'} ne '' && $env{'user.domain'} ne 'public') {
1325: $known = 1;
1326: }
1327: return $known;
1328: }
1329:
1330: 1;
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