Annotation of loncom/interface/coursecatalog.pm, revision 1.49
1.17 albertel 1: # The LearningOnline Network with CAPA
2: # Handler for displaying the course catalog interface
3: #
1.49 ! schafran 4: # $Id: coursecatalog.pm,v 1.48 2009/02/07 22:03:45 raeburn Exp $
1.1 raeburn 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;
1.7 raeburn 35: use Apache::lonhtmlcommon;
1.1 raeburn 36: use Apache::lonnet;
37: use Apache::lonlocal;
1.6 raeburn 38: use Apache::courseclassifier;
1.1 raeburn 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: }
1.21 albertel 49: my $handle = &Apache::lonnet::check_for_valid_session($r);
1.8 raeburn 50: my $lonidsdir=$r->dir_config('lonIDsDir');
1.21 albertel 51: if ($handle ne '') {
1.8 raeburn 52: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
53: }
1.1 raeburn 54: &Apache::lonacc::get_posted_cgi($r);
55: &Apache::lonlocal::get_language_handle($r);
1.38 raeburn 56: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
57: ['sortby','showdom']);
1.28 raeburn 58:
59: my $codedom = &Apache::lonnet::default_login_domain();
1.19 raeburn 60:
61: if (($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: }
1.7 raeburn 67: my $formname = 'coursecatalog';
1.28 raeburn 68: if ($env{'form.showdom'} ne '') {
69: if (&Apache::lonnet::domain($env{'form.showdom'}) ne '') {
70: $codedom = $env{'form.showdom'};
71: }
72: }
1.20 albertel 73: my $domdesc = &Apache::lonnet::domain($codedom,'description');
1.7 raeburn 74: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.35 raeburn 75:
76: my %domconfig =
77: &Apache::lonnet::get_dom('configuration',['coursecategories'],$codedom);
1.36 raeburn 78: my (@cats,@trails,%allitems,%idx,@jsarray,%subcathash,$cathash);
1.35 raeburn 79: if (ref($domconfig{'coursecategories'}) eq 'HASH') {
80: $cathash = $domconfig{'coursecategories'}{'cats'};
81: } else {
82: $cathash = {};
83: }
1.36 raeburn 84: my $subcats;
85: if ($env{'form.withsubcats'}) {
86: $subcats = \%subcathash;
87: }
1.35 raeburn 88: &Apache::loncommon::extract_categories($cathash,\@cats,\@trails,\%allitems,
1.36 raeburn 89: \%idx,\@jsarray,$subcats);
1.8 raeburn 90: if ($env{'form.coursenum'} ne '' && &user_is_known()) {
1.35 raeburn 91: &course_details($r,$codedom,$formname,$domdesc,\@trails,\%allitems);
1.7 raeburn 92: } else {
1.46 raeburn 93: my ($catlinks,$has_subcats,$selitem) = &category_breadcrumbs($codedom,@cats);
1.28 raeburn 94: my $catjs = <<"ENDSCRIPT";
95:
96: function setCatDepth(depth) {
97: document.coursecats.catalog_maxdepth.value = depth;
1.36 raeburn 98: if (depth == '') {
99: document.coursecats.currcat_0.value = '';
100: }
1.28 raeburn 101: document.coursecats.submit();
102: return;
103: }
104:
1.33 raeburn 105: function changeSort(caller) {
106: document.$formname.sortby.value = caller;
107: document.$formname.submit();
108: }
1.40 raeburn 109:
1.33 raeburn 110: function setCourseId(caller) {
111: document.$formname.coursenum.value = caller;
112: document.$formname.submit();
1.37 raeburn 113: }
114:
115: ENDSCRIPT
1.41 raeburn 116: $catjs .= &courselink_javascript();
1.28 raeburn 117: my $numtitles;
118: if ($env{'form.currcat_0'} eq 'instcode::0') {
119: $numtitles = &instcode_course_selector($r,$codedom,$formname,$domdesc,
120: $catlinks,$catjs);
121: if ($env{'form.state'} eq 'listing') {
122: $r->print(&print_course_listing($codedom,$numtitles));
123: }
124: } else {
125: my (%add_entries);
1.46 raeburn 126: if ($selitem) {
127: $catjs .= <<ENDJS;
128: function check_selected() {
129: if (document.coursecats.$selitem.options[document.coursecats.$selitem.selectedIndex].value == "") {
130: alert('Choose a subcategory to display');
131: return false;
132: }
133: }
134: ENDJS
135: }
1.28 raeburn 136: $catjs = '<script type="text/javascript">'."\n".$catjs."\n".'</script>';
137: &cat_header($r,$codedom,$catjs,\%add_entries,$catlinks);
138: if ($env{'form.currcat_0'} ne '') {
1.33 raeburn 139: $r->print('<form name="'.$formname.
140: '" method="post" action="/adm/coursecatalog">'.
1.36 raeburn 141: &additional_filters($codedom,$has_subcats)."\n");
1.33 raeburn 142: my ($currdepth,$deeper) = &get_depth_values();
143: $r->print('<input type="hidden" name="catalog_maxdepth" value="'.
144: $deeper.'" />'."\n");
145: for (my $i=0; $i<$deeper; $i++) {
146: $r->print('<input type="hidden" name="currcat_'.$i.'" value="'.$env{'form.currcat_'.$i}.'" />'."\n");
147: }
148: $r->print('<input type="hidden" name="coursenum" value="" />'."\n".
149: '<input type="hidden" name="sortby" value="" />'."\n".
150: '<input type="hidden" name="state" value="listing" />'."\n".
151: '<input type="hidden" name="showdom" value="'.
152: $env{'form.showdom'}.'" />'.
153: '<input type="submit" name="catalogfilter" value="'.
154: &mt('Display courses').'" /></form><br /><br />');
155: }
156: if ($env{'form.state'} eq 'listing') {
1.36 raeburn 157: $r->print(&print_course_listing($codedom,undef,\@trails,\%allitems,$subcats));
1.28 raeburn 158: }
1.18 raeburn 159: }
1.7 raeburn 160: }
1.32 raeburn 161: $r->print('<br />'.&Apache::loncommon::end_page());
1.7 raeburn 162: return OK;
163: }
164:
165: sub course_details {
1.35 raeburn 166: my ($r,$codedom,$formname,$domdesc,$trails,$allitems) = @_;
1.7 raeburn 167: my $output;
168: my %add_entries = (topmargin => "0",
169: marginheight => "0",);
1.40 raeburn 170: my $js = '<script type="text/javascript">'."\n".
1.41 raeburn 171: &courselink_javascript().'</script>'."\n";
1.7 raeburn 172: my $start_page =
1.40 raeburn 173: &Apache::loncommon::start_page('Course Catalog',$js,
1.7 raeburn 174: {
175: 'add_entries' => \%add_entries,
176: 'no_inline_link' => 1,});
177: $r->print($start_page);
1.19 raeburn 178: if ($env{'form.numtitles'} > 0) {
179: &Apache::lonhtmlcommon::add_breadcrumb
180: ({href=>"/adm/coursecatalog",
181: text=>"Select courses"});
182: }
1.7 raeburn 183: &Apache::lonhtmlcommon::add_breadcrumb
1.19 raeburn 184: ({href=>"javascript:document.$formname.submit()",
1.7 raeburn 185: text=>"Course listing"},
186: {text=>"Course details"});
187: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course Details'));
188: $r->print('<br />'.&mt('Detailed course information:').'<br /><br />'.
1.35 raeburn 189: &print_course_listing($codedom,undef,$trails,$allitems).
190: '<br /><br />');
1.40 raeburn 191: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
192: '<a href = "javascript:document.coursecatalog.submit()">'.
1.7 raeburn 193: &mt('Back to course listing').'</a>'.
1.41 raeburn 194: &Apache::lonhtmlcommon::echo_form_input(['coursenum','catalogfilter',
195: 'showdetails','courseid']).'</form>');
1.40 raeburn 196: return;
197: }
198:
1.41 raeburn 199: sub courselink_javascript {
1.40 raeburn 200: return <<"END";
201:
202: function ToSyllabus(cdom,cnum) {
203: if (cdom == '' || cdom == null) {
204: return;
205: }
206: if (cnum == '' || cnum == null) {
207: return;
208: }
1.41 raeburn 209: document.linklaunch.action = "/public/"+cdom+"/"+cnum+"/syllabus";
210: document.linklaunch.submit();
211: }
212:
213: function ToSelfenroll(courseid) {
214: if (courseid == '') {
215: return;
216: }
217: document.linklaunch.action = "/adm/selfenroll";
218: document.linklaunch.courseid.value = courseid;
219: document.linklaunch.submit();
1.40 raeburn 220: }
221:
222: END
1.7 raeburn 223: }
224:
1.40 raeburn 225:
1.28 raeburn 226: sub instcode_course_selector {
227: my ($r,$codedom,$formname,$domdesc,$catlinks,$catjs) = @_;
1.1 raeburn 228: my %coursecodes = ();
229: my %codes = ();
230: my @codetitles = ();
231: my %cat_titles = ();
232: my %cat_order = ();
233: my %idlist = ();
234: my %idnums = ();
235: my %idlist_titles = ();
1.6 raeburn 236: my %by_year;
237: my %by_sem;
238: my %by_dept;
239: my %cat_items;
1.1 raeburn 240: my $caller = 'global';
241: my $format_reply;
242: my $totcodes = 0;
243: my $jscript = '';
1.6 raeburn 244: my ($numtitles,$lasttitle);
1.30 raeburn 245: my %add_entries = (topmargin => "0",
246: marginheight => "0",);
247: my $js;
1.22 raeburn 248: $totcodes = &Apache::courseclassifier::retrieve_instcodes(\%coursecodes,$codedom);
1.1 raeburn 249: if ($totcodes > 0) {
1.6 raeburn 250: $format_reply = &Apache::lonnet::auto_instcode_format($caller,$codedom,\%coursecodes,\%codes,\@codetitles,\%cat_titles,\%cat_order);
251: if ($format_reply eq 'ok') {
252: my $numtypes = @codetitles;
253: &Apache::courseclassifier::build_code_selections(\%codes,\@codetitles,\%cat_titles,\%cat_order,\%idlist,\%idnums,\%idlist_titles);
254: my ($scripttext,$longtitles) = &Apache::courseclassifier::javascript_definitions(\@codetitles,\%idlist,\%idlist_titles,\%idnums,\%cat_titles);
255: my $longtitles_str = join('","',@{$longtitles});
256: my $allidlist = $idlist{$codetitles[0]};
257: $numtitles = @codetitles;
258: $lasttitle = $numtitles;
259: if ($numtitles > 4) {
260: $lasttitle = 4;
1.1 raeburn 261: }
1.18 raeburn 262: if ($numtitles == 0) {
263: if (!defined($env{'form.state'})) {
264: $env{'form.state'} = 'listing';
265: }
266: } else {
267: my @data = ('top');
268: for (my $k=0; $k<$lasttitle; $k++) {
269: my $cat = $codetitles[$k];
270: my $level = 1;
271: $level = &recurse_options($codetitles[$k],$idlist{$codetitles[$k]},$level,$cat,\%cat_items,\@data,\%by_year,\%by_sem,\%by_dept);
272: }
273: $scripttext .= &build_javascript(\%by_year,\%by_sem,\%by_dept,\%cat_order,\@codetitles);
274: $jscript .= &javascript_select_filler($formname,$scripttext,\@codetitles,$longtitles_str,$allidlist);
275: if ($env{'form.state'} eq 'listing') {
276: $jscript .= '
1.1 raeburn 277: function setElements() {
278: ';
1.18 raeburn 279: for (my $i=0; $i<@codetitles-1; $i++) {
280: if ($env{'form.'.$codetitles[$i]} != -1) {
281: $jscript .= '
1.1 raeburn 282: for (var j=0; j<document.'.$formname.'.'.$codetitles[$i].'.length; j++) {
283: if (document.'.$formname.'.'.$codetitles[$i].'[j].value == "'.$env{'form.'.$codetitles[$i]}.'") {
284: document.'.$formname.'.'.$codetitles[$i].'.selectedIndex = j;
285: }
286: }
287: ';
1.18 raeburn 288: }
289: }
290: $jscript .= ' courseSet()'."\n";
291: if ($env{'form.'.$codetitles[-1]} != -1) {
292: $jscript .= '
1.6 raeburn 293: for (var j=0; j<document.'.$formname.'.'.$codetitles[-1].'.length; j++) {
294: if (document.'.$formname.'.'.$codetitles[-1].'[j].value == "'.$env{'form.'.$codetitles[-1]}.'") {
295: document.'.$formname.'.'.$codetitles[-1].'.selectedIndex = j;
296: }
297: }
298: ';
1.18 raeburn 299: }
300: $jscript .= '}';
301: }
1.6 raeburn 302: }
1.32 raeburn 303: }
1.30 raeburn 304: $js = '<script type"text/javascript">'."\n$jscript\n$catjs\n".
305: '</script>';
1.18 raeburn 306: if (($env{'form.state'} eq 'listing') && ($numtitles > 0)) {
1.7 raeburn 307: $add_entries{'onLoad'} = 'setElements()';
308: }
1.28 raeburn 309: &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles);
310: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
311: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
1.32 raeburn 312: '<input type="hidden" name="catalog_maxdepth" value="'.$cat_maxdepth.'" />'."\n".
313: '<input type="hidden" name="showdom" value="'.$env{'form.showdom'}.'" />'."\n".
314: '<input type="hidden" name="currcat_0" value="instcode::0" />'.
1.33 raeburn 315: &additional_filters($codedom));
1.1 raeburn 316: if ($numtitles > 0) {
1.32 raeburn 317: $r->print('<b>'.&mt('Choose which course(s) to list.').'</b><br />');
1.6 raeburn 318: $r->print('<table><tr>');
319: for (my $k=0; $k<$lasttitle-1; $k++) {
1.26 raeburn 320: my (@items,@unsorted);
321: if (ref($cat_items{$codetitles[$k]}) eq 'ARRAY') {
322: @unsorted = @{$cat_items{$codetitles[$k]}};
323: }
1.6 raeburn 324: &Apache::courseclassifier::sort_cats($k,\%cat_order,\@codetitles,\@unsorted,\@items);
325: my @longitems;
326: if (defined($cat_titles{$codetitles[$k]})) {
327: foreach my $item (@items) {
328: push(@longitems,$cat_titles{$codetitles[$k]}{$item});
329: }
1.1 raeburn 330: } else {
1.6 raeburn 331: @longitems = @items;
1.1 raeburn 332: }
1.6 raeburn 333: $r->print('<td align="center">'.$codetitles[$k].'<br />'."\n".
334: '<select name="'.$codetitles[$k].'" onChange="courseSet()"');
335: $r->print('>'."\n".'<option value="0" />All'."\n");
336: for (my $i=0; $i<@items; $i++) {
1.1 raeburn 337: if ($longitems[$i] eq '') {
338: $longitems[$i] = $items[$i];
339: }
1.6 raeburn 340: $r->print(' <option value="'.$items[$i].'">'.$longitems[$i].'</option>');
1.1 raeburn 341: }
1.6 raeburn 342: $r->print('</select></td>');
1.1 raeburn 343: }
1.6 raeburn 344: $r->print('<td align="center">'.$codetitles[$lasttitle-1].'<br />'."\n".
345: '<select name="'.$codetitles[$lasttitle-1].'">'."\n".
346: '<option value="0">All'."\n".
347: '</option>'."\n".'</select>'."\n".
1.32 raeburn 348: '</td></tr></table>'."\n");
1.1 raeburn 349: if ($numtitles > 4) {
1.6 raeburn 350: $r->print('<br /><br />'.$codetitles[$numtitles-1].'<br />'."\n".
351: '<input type="text" name="'.$codetitles[$numtitles-1].'" /><br />'."\n");
1.1 raeburn 352: }
1.18 raeburn 353: $r->print('<br />');
354: }
1.33 raeburn 355: $r->print('<input type="hidden" name="coursenum" value="" />'."\n".
356: '<input type="hidden" name="sortby" value="" />'."\n".
357: '<input type="hidden" name="state" value="listing" />'."\n".
358: '<input type="hidden" name="form.currcat_0" value="instcode::0" />'."\n".
359: '<input type="submit" name="catalogfilter" value="'.
360: &mt('Display courses').'" />'.
361: '<input type="hidden" name="numtitles" value="'.$numtitles.
1.37 raeburn 362: '" /></form><br /><br />');
1.5 raeburn 363: } else {
1.45 raeburn 364: $js = '<script type"text/javascript">'."\n$catjs\n".'</script>';
1.30 raeburn 365: &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles);
366: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
367: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
368: '<input type="hidden" name="catalog_maxdepth" value="'.$cat_maxdepth.'" />'.
369: '<input type="hidden" name="showdom" value="'.$env{'form.showdom'}.'" />'.
370: '<input type="hidden" name="currcat_0" value="instcode::0" />');
371: $r->print('<br />'.&mt('No official courses to display for [_1].',$domdesc).'</form>');
1.1 raeburn 372: }
1.18 raeburn 373: return $numtitles;
1.1 raeburn 374: }
375:
1.28 raeburn 376: sub cat_header {
377: my ($r,$codedom,$js,$add_entries,$catlinks,$numtitles) = @_;
378: my $start_page =
1.49 ! schafran 379: &Apache::loncommon::start_page('Other',$js,
1.28 raeburn 380: {
381: 'add_entries' => $add_entries,
382: 'no_inline_link' => 1,});
383: $r->print($start_page);
384: if ($env{'form.state'} eq 'listing') {
385: if ($numtitles > 0) {
386: &Apache::lonhtmlcommon::add_breadcrumb
387: ({href=>"/adm/coursecatalog",
388: text=>"Select courses"},
389: {text=>"Course listing"});
390: } else {
391: &Apache::lonhtmlcommon::add_breadcrumb
392: ({text=>"Course listing"});
393: }
394: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course Listing'));
395: } else {
396: &Apache::lonhtmlcommon::add_breadcrumb
397: ({href=>"/adm/coursecatalog",
398: text=>"Select courses"});
399: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Select courses'));
400: }
1.47 raeburn 401: my $onchange;
402: unless (($env{'browser.interface'} eq 'textual') || ($env{'form.interface'} eq 'textual')) {
403: $onchange = 1;
404: }
1.34 raeburn 405: $r->print('<form name="coursecatdom" method="post" action="/adm/coursecatalog">'.
406: '<table border="0"><tr><td><b>'.&mt('Domain:').'</b></td><td>'.
1.47 raeburn 407: &Apache::loncommon::select_dom_form($codedom,'showdom','',1,$onchange));
408: if (!$onchange) {
409: $r->print(' <input type="submit" name="godom" value="'.&mt('Change').'" />');
410: }
411: $r->print('</td></tr></table></form>'.
1.46 raeburn 412: '<form name="coursecats" method="post" action="/adm/coursecatalog"'.
1.48 raeburn 413: ' onsubmit="return check_selected();">'.
1.34 raeburn 414: '<table border="0"><tr>'.$catlinks.'</tr></table></form>');
1.28 raeburn 415: return;
416: }
417:
418: sub category_breadcrumbs {
1.35 raeburn 419: my ($dom,@cats) = @_;
1.44 raeburn 420: my $crumbsymbol = ' ▶ ';
1.33 raeburn 421: my ($currdepth,$deeper) = &get_depth_values();
422: my $currcat_str = '<input type="hidden" name="catalog_maxdepth" value="'.$deeper.'" /><input type="hidden" name="showdom" value="'.$dom.'" />';
1.28 raeburn 423: my $catlinks = '<td valign="top"><b>'.&mt('Catalog:').'</b></td><td><table><tr>';
1.36 raeburn 424: my $has_subcats;
1.46 raeburn 425: my $selitem;
1.28 raeburn 426: for (my $i=0; $i<$deeper; $i++) {
427: $currcat_str .= '<input type="hidden" name="currcat_'.$i.'" value="'.$env{'form.currcat_'.$i}.'" />';
428: my ($cattitle,$shallower);
429: if ($i == 0) {
1.46 raeburn 430: if (ref($cats[0]) eq 'ARRAY') {
431: if (@{$cats[0]} > 1) {
432: $cattitle = &mt('Main Categories');
433: }
434: }
1.28 raeburn 435: } else {
436: $shallower = $i-1;
437: my ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$shallower});
438: $cattitle = $cat;
439: }
1.46 raeburn 440: if ($cattitle ne '') {
441: $catlinks .= '<td valign="top"><a href="javascript:setCatDepth('."'$shallower'".')">'.$cattitle.'</a>'.$crumbsymbol.'</td>';
442: }
1.28 raeburn 443: }
444: if ($deeper == 0) {
1.46 raeburn 445: $catlinks .= '<td>';
1.28 raeburn 446: if (ref($cats[0]) eq 'ARRAY') {
1.46 raeburn 447: if ((@{$cats[0]} == 1) && (@cats == 1)) {
448: if ($cats[0][0] eq 'instcode') {
449: $catlinks .= &mt('Official courses (with institutional codes)').
450: '<input type="hidden" name="currcat_0" value="instcode::0" />';
451: $env{'form.currcat_0'} = 'instcode::0';
452: } else {
453: my $name = $cats[0][0];
454: my $item = &escape($name).'::0';
455: $catlinks .= $name.
456: '<input type="hidden" name="currcat_0" value="'.$item.'" />';
457: $env{'form.currcat_0'} = $item;
458: }
1.28 raeburn 459: } else {
1.36 raeburn 460: $has_subcats = 1;
1.46 raeburn 461: my $buttontext = &mt('Show subcategories');
462: $selitem = 'currcat_0';
463: $catlinks .= '<select name="'.$selitem.'">'."\n";
1.28 raeburn 464: if (@{$cats[0]} > 1) {
1.46 raeburn 465: $catlinks .= '<option value="" selected="selected">'.&mt('Select').'</option>'."\n";
466: $buttontext = &mt('Pick main category');
1.28 raeburn 467: }
468: for (my $i=0; $i<@{$cats[0]}; $i++) {
469: my $name = $cats[0][$i];
470: my $item = &escape($name).'::0';
1.36 raeburn 471: $catlinks .= '<option value="'.$item.'">';
1.28 raeburn 472: if ($name eq 'instcode') {
473: $catlinks .= &mt('Official courses (with institutional codes)');
474: } else {
475: $catlinks .= $name;
476: }
477: $catlinks .= '</option>'."\n";
478: }
479: $catlinks .= '</select>'."\n".
1.46 raeburn 480: ' <input type="submit" name="gocats" value="'.
481: $buttontext.'" />';
1.28 raeburn 482: }
483: } else {
484: $catlinks .= &mt('Official courses (with institutional codes)').
1.34 raeburn 485: '<input type="hidden" name="currcat_0" value="instcode::0" />';
1.28 raeburn 486: $env{'form.currcat_0'} = 'instcode::0';
487: }
488: } else {
1.29 raeburn 489: my ($cat,$container,$depth);
490: if ($env{'form.currcat_'.$currdepth} eq '') {
491: my $shallower = $currdepth - 1;
492: ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$shallower});
493: } else {
494: ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$currdepth});
495: }
1.28 raeburn 496: my $deeper = $depth +1;
497: my $currcat = $cat;
498: if ($cat eq 'instcode') {
499: $currcat = &mt('Official courses (with institutional codes)');
500: }
1.46 raeburn 501: $catlinks .= '<td><b>'.$currcat.'</b>';
1.28 raeburn 502: if (ref($cats[$deeper]{$cat}) eq 'ARRAY') {
1.36 raeburn 503: $has_subcats = 1;
1.46 raeburn 504: my $buttontext = &mt('Show subcategories');
505: $selitem = 'currcat_'.$deeper;
506: $catlinks .= ': <select name="'.$selitem.'">';
507: if (@{$cats[$deeper]{$cat}} > 1) {
508: $catlinks .= '<option value="" selected="selected">'.
509: &mt('Select').'</option>';
510: $buttontext = &mt('Pick subcategory');
511: }
1.28 raeburn 512: for (my $k=0; $k<@{$cats[$deeper]{$cat}}; $k++) {
513: my $name = $cats[$deeper]{$cat}[$k];
514: my $item = &escape($name).':'.&escape($cat).':'.$deeper;
515: $catlinks .= '<option value="'.$item.'">'.$name.'</option>'."\n";
516: }
517: $catlinks .= '</select>'."\n".
1.46 raeburn 518: ' <input type="submit" name="gocats" value="'.
519: $buttontext.'" />';
520: } elsif ($cat ne 'instcode') {
521: $catlinks .= ' '.&mt('(No subcategories)');
1.28 raeburn 522: }
523: }
524: $catlinks .= $currcat_str.'</td></tr></table></td>';
1.46 raeburn 525: return ($catlinks,$has_subcats,$selitem);
1.28 raeburn 526: }
527:
1.33 raeburn 528: sub get_depth_values {
529: my $currdepth = 0;
530: my $deeper = 0;
531: if ($env{'form.catalog_maxdepth'} ne '') {
532: $currdepth = $env{'form.catalog_maxdepth'};
533: if ($env{'form.currcat_'.$currdepth} eq '') {
534: $deeper = $currdepth;
535: } else {
536: $deeper = $currdepth + 1;
537: }
538: }
539: return ($currdepth,$deeper);
540: }
541:
542: sub additional_filters {
1.36 raeburn 543: my ($codedom,$has_subcats) = @_;
1.33 raeburn 544: my $output = '<table>';
1.36 raeburn 545: if (($env{'form.currcat_0'} ne 'instcode::0') &&
546: ($env{'form.currcat_0'} ne '') && ($has_subcats)) {
547: my $include_subcat_status;
548: if ($env{'form.withsubcats'}) {
549: $include_subcat_status = 'checked="checked" ';
550: }
551: my $counter = $env{'form.catalog_maxdepth'};
552: if ($counter > 0) {
553: if ($env{'form.state'} eq 'listing') {
554: $counter --;
555: } elsif ($env{'form.currcat_'.$counter} eq '') {
556: $counter --;
557: }
558: }
559: my ($catname) = split(/:/,$env{'form.currcat_'.$counter});
560: if ($catname ne '') {
561: $output .= '<tr><td><label>'.
562: '<input type="checkbox" name="withsubcats" value="1" '.
563: $include_subcat_status.'/>'.
1.38 raeburn 564: &mt('Include subcategories within "[_1]"',
565: &unescape($catname)).'</label></td></tr>';
1.36 raeburn 566: }
567: }
1.33 raeburn 568: my $show_selfenroll_status;
569: if ($env{'form.showselfenroll'}) {
570: $show_selfenroll_status = 'checked="checked" ';
571: }
1.36 raeburn 572: $output .= '<tr><td>'.
573: '<label><input type="checkbox" name="showselfenroll" value="1" '.
574: $show_selfenroll_status.'/>'.
575: &mt('Only show courses which allow self-enrollment').
576: '</label></td></tr>';
1.33 raeburn 577: if (&user_is_dc($codedom)) {
578: my $showdetails_status;
579: if ($env{'form.showdetails'}) {
580: $showdetails_status = 'checked="checked" ';
581: }
582: my $showhidden_status;
583: if ($env{'form.showhidden'}) {
584: $showhidden_status = 'checked="checked" ';
585: }
586: my $dc_title = &Apache::lonnet::plaintext('dc');
587: $output .= '<tr><td>'."\n".
588: '<label><input type="checkbox" name="showdetails" value="1" '.
1.36 raeburn 589: $showdetails_status.'/>'.
1.33 raeburn 590: &mt('Show full details for each course ([_1] only)',$dc_title).
591: '</label>'."\n".'</td></tr><tr><td>'.
592: '<label><input type="checkbox" name="showhidden" value="1" '.
593: $showhidden_status.'/>'.
594: &mt('Include courses set to be hidden from catalog ([_1] only)',$dc_title).
595: '</label>'."\n".'</td></tr>';
596: }
1.36 raeburn 597: $output .= '</table><br />';
1.33 raeburn 598: return $output;
599: }
600:
1.16 raeburn 601: sub user_is_dc {
602: my ($codedom) = @_;
603: if (exists($env{'user.role.dc./'.$codedom.'/'})) {
604: my $livedc = 1;
605: my $now = time;
606: my ($start,$end)=split(/\./,$env{'user.role.dc./'.$codedom.'/'});
607: if ($start && $start>$now) { $livedc = 0; }
608: if ($end && $end <$now) { $livedc = 0; }
609: return $livedc;
610: }
611: return;
612: }
1.7 raeburn 613:
1.6 raeburn 614: sub recurse_options {
615: my ($currkey,$currlist,$level,$cat,$cat_options,$data,$by_year,$by_sem,$by_dept) = @_;
616: if (ref($currlist) eq 'HASH') {
617: $level ++;
618: foreach my $key (sort(keys(%{$currlist}))) {
619: $$data[$level-1]= $key;
620: &recurse_options($key,$currlist->{$key},$level,$cat,$cat_options,$data,$by_year,$by_sem,$by_dept);
621: }
622: } else {
623: $level --;
624: my @contents = split(/","/,$currlist);
625: foreach my $item (@contents) {
626: if (!grep(/^\Q$item\E$/,@{$cat_options->{$cat}})) {
627: push(@{$cat_options->{$cat}},$item);
628: }
629: if ($level == 3) {
630: if (!grep/^\Q$item\E$/,@{$by_year->{$data->[1]}->{$currkey}}) {
631: push(@{$by_year->{$data->[1]}->{$currkey}},$item);
632: }
633: if (!grep/^\Q$item\E$/,@{$by_sem->{$data->[2]}->{$currkey}}) {
634: push(@{$by_sem->{$data->[2]}->{$currkey}},$item);
635: }
636: if (!grep/^\Q$item\E$/,@{$by_dept->{$currkey}}) {
637: push(@{$by_dept->{$currkey}},$item);
638: }
639:
640: }
641: }
642: }
643: return $level;
644: }
645:
646: sub build_javascript {
647: my ($by_year,$by_sem,$by_dept,$cat_order,$codetitles) = @_;
648: my @unsorted = keys(%{$by_year});
649: my @sorted_yrs;
650: &Apache::courseclassifier::sort_cats('0',$cat_order,$codetitles,\@unsorted,\@sorted_yrs);
651: my $output = 'var idcse_by_yr_year = new Array("'.join('","',@sorted_yrs).'");'."\n".
652: 'var idcse_by_yr_dept = new Array('.scalar(@sorted_yrs).');'."\n".
653: 'var idcse_by_yr_num = new Array('.scalar(@sorted_yrs).');'."\n";
654: for (my $i=0; $i<@sorted_yrs; $i++) {
655: my $numkeys = keys(%{$by_year->{$sorted_yrs[$i]}});
656: $output .= " idcse_by_yr_num[$i] = new Array($numkeys);\n";
657: if (ref($by_year->{$sorted_yrs[$i]}) eq 'HASH') {
658: @unsorted = keys(%{$by_year->{$sorted_yrs[$i]}});
659: my @sorted_depts;
660: &Apache::courseclassifier::sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_depts);
661: $output .= qq| idcse_by_yr_dept[$i] = new Array ("|.join('","',@sorted_depts).'");'."\n";
662: for (my $j=0; $j<@sorted_depts; $j++) {
663: $output .= qq| idcse_by_yr_num[$i][$j] = new Array ("|;
664: $output .= join('","',sort(@{$by_year->{$sorted_yrs[$i]}->{$sorted_depts[$j]}})).'");'."\n";
665: }
666: }
667: }
668: @unsorted = keys(%{$by_sem});
669: my @sorted_sems;
670: &Apache::courseclassifier::sort_cats('1',$cat_order,$codetitles,\@unsorted,\@sorted_sems);
671: $output .= 'idcse_by_sem_sems = new Array("'.join('","',@sorted_sems).'");'."\n".
672: 'idcse_by_sem_dept = new Array('.scalar(@sorted_sems).');'."\n".
673: 'idcse_by_sem_num = new Array('.scalar(@sorted_sems).');'."\n";
674: for (my $i=0; $i<@sorted_sems; $i++) {
675: my $numkeys = keys(%{$by_sem->{$sorted_sems[$i]}});
676: $output .= " idcse_by_sem_num[$i] = new Array($numkeys);\n";
677: if (ref($by_sem->{$sorted_sems[$i]}) eq 'HASH') {
678: @unsorted = keys(%{$by_sem->{$sorted_sems[$i]}});
679: my @sorted_depts;
680: &Apache::courseclassifier::sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_depts);
681: $output .= qq| idcse_by_sem_dept[$i] = new Array("|.join('","',@sorted_depts).'");'."\n";
682: for (my $j=0; $j<@sorted_depts; $j++) {
683: $output .= qq| idcse_by_sem_num[$i][$j] = new Array ("|.join('","',sort(@{$by_sem->{$sorted_sems[$i]}->{$sorted_depts[$j]}})).'");'."\n";
684: }
685: }
686: }
687: @unsorted = keys(%{$by_dept});
688: my @sorted_deps;
689: &Apache::courseclassifier::sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_deps);
690: $output .= 'idcse_by_dep = new Array('.scalar(@sorted_deps).');'."\n";
691: for (my $k=0; $k<@sorted_deps; $k++) {
692: $output .= qq| idcse_by_dep[$k] = new Array ("|.join('","',sort(@{$by_dept->{$sorted_deps[$k]}})).'");'."\n";
693: }
694: return $output;
695: }
696:
1.28 raeburn 697: sub search_official_courselist {
1.18 raeburn 698: my ($domain,$numtitles) = @_;
699: my $instcode;
700: if (defined($numtitles) && $numtitles == 0) {
701: $instcode = '.+';
702: } else {
703: my (%codedefaults,@code_order);
704: my $defaults_result =
705: &Apache::lonnet::auto_instcode_defaults($domain,\%codedefaults,
706: \@code_order);
707: if ($defaults_result eq 'ok') {
708: $instcode ='^';
709: foreach my $item (@code_order) {
710: if ($env{'form.'.$item} eq '0' ) {
711: $instcode .= $codedefaults{$item};
712: } else {
713: $instcode .= $env{'form.'.$item};
714: }
1.7 raeburn 715: }
1.18 raeburn 716: $instcode .= '$';
717: } else {
718: $instcode = '.';
1.7 raeburn 719: }
720: }
1.32 raeburn 721: my $showhidden;
722: if (&user_is_dc($domain)) {
723: $showhidden = $env{'form.showhidden'};
724: }
725: my %courses =
726: &Apache::lonnet::courseiddump($domain,'.',1,$instcode,'.','.',undef,undef,
727: 'Course',1,$env{'form.showselfenroll'},undef,
728: $showhidden,'coursecatalog');
1.7 raeburn 729: return %courses;
730: }
731:
1.28 raeburn 732: sub search_courselist {
1.36 raeburn 733: my ($domain,$subcats) = @_;
1.28 raeburn 734: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
735: my $filter = $env{'form.currcat_'.$cat_maxdepth};
1.29 raeburn 736: if (($filter eq '') && ($cat_maxdepth > 0)) {
737: my $shallower = $cat_maxdepth - 1;
738: $filter = $env{'form.currcat_'.$shallower};
739: }
1.28 raeburn 740: my %courses;
1.36 raeburn 741: my $filterstr;
1.28 raeburn 742: if ($filter ne '') {
1.36 raeburn 743: if ($env{'form.withsubcats'}) {
744: if (ref($subcats) eq 'HASH') {
745: if (ref($subcats->{$filter}) eq 'ARRAY') {
746: $filterstr = join('&',@{$subcats->{$filter}});
747: if ($filterstr ne '') {
748: $filterstr = $filter.'&'.$filterstr;
749: }
750: } else {
751: $filterstr = $filter;
752: }
753: } else {
754: $filterstr = $filter;
755: }
756: } else {
757: $filterstr = $filter;
758: }
1.32 raeburn 759: my $showhidden;
760: if (&user_is_dc($domain)) {
761: $showhidden = $env{'form.showhidden'};
762: }
763: %courses =
764: &Apache::lonnet::courseiddump($domain,'.',1,'.','.','.',undef,undef,
765: '.',1,$env{'form.showselfenroll'},
1.36 raeburn 766: $filterstr,$showhidden,'coursecatalog');
1.28 raeburn 767: }
768: return %courses;
769: }
1.6 raeburn 770:
1.1 raeburn 771: sub print_course_listing {
1.36 raeburn 772: my ($domain,$numtitles,$trails,$allitems,$subcats) = @_;
1.1 raeburn 773: my $output;
1.7 raeburn 774: my %courses;
1.15 raeburn 775: my $knownuser = &user_is_known();
1.16 raeburn 776: my $details = $env{'form.coursenum'};
777: if (&user_is_dc($domain)) {
778: if ($env{'form.showdetails'}) {
779: $details = 1;
780: }
781: }
1.7 raeburn 782: if ($env{'form.coursenum'} ne '') {
783: %courses = &Apache::lonnet::courseiddump($domain,'.',1,'.','.',
784: $env{'form.coursenum'},
1.33 raeburn 785: undef,undef,'.',1);
1.7 raeburn 786: if (keys(%courses) == 0) {
787: $output .= &mt('The courseID provided does not match a course in this domain.');
788: return $output;
789: }
1.6 raeburn 790: } else {
1.28 raeburn 791: if ($env{'form.currcat_0'} eq 'instcode::0') {
792: %courses = &search_official_courselist($domain,$numtitles);
793: } else {
1.36 raeburn 794: %courses = &search_courselist($domain,$subcats);
1.28 raeburn 795: }
1.7 raeburn 796: if (keys(%courses) == 0) {
797: $output = &mt('No courses match the criteria you selected.');
798: return $output;
799: }
1.32 raeburn 800: if (($knownuser) && (!$env{'form.showdetails'}) && (!&user_is_dc($domain))) {
1.31 bisitz 801: $output = '<b>'.&mt('Note for students:').'</b> '
802: .&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.')
803: .'<br /><br />';
1.8 raeburn 804: }
1.7 raeburn 805: }
1.27 raeburn 806: my $now = time;
807: my %domconfig =
808: &Apache::lonnet::get_dom('configuration',['usercreation'],$domain);
1.35 raeburn 809: $output .= &construct_data_table($knownuser,\%courses,$details,undef,$now,\%domconfig,$trails,$allitems);
1.41 raeburn 810: $output .= "\n".'<form name="linklaunch" method="post" action="">'.
1.40 raeburn 811: '<input type="hidden" name="backto" value="coursecatalog" />'.
1.41 raeburn 812: '<input type="hidden" name="courseid" value="" />'.
813: &Apache::lonhtmlcommon::echo_form_input(['catalogfilter','courseid']).'</form>';
1.15 raeburn 814: return $output;
815: }
816:
817: sub construct_data_table {
1.35 raeburn 818: my ($knownuser,$courses,$details,$usersections,$now,$domconfig,$trails,
819: $allitems) = @_;
1.7 raeburn 820: my %sortname;
1.16 raeburn 821: if (($details eq '') || ($env{'form.showdetails'})) {
1.7 raeburn 822: $sortname{'Code'} = 'code';
1.35 raeburn 823: $sortname{'Categories'} = 'cats';
1.7 raeburn 824: $sortname{'Title'} = 'title';
1.22 raeburn 825: $sortname{'Owner(s)'} = 'owner';
1.7 raeburn 826: }
1.15 raeburn 827: my $output = &Apache::loncommon::start_data_table().
828: &Apache::loncommon::start_data_table_header_row();
1.35 raeburn 829: my @coltitles = ('Count');
830: if ($env{'form.currcat_0'} eq 'instcode::0') {
831: push(@coltitles,'Code');
832: } else {
833: push(@coltitles,'Categories');
834: }
835: push(@coltitles,('Sections','Crosslisted','Title','Owner(s)'));
1.15 raeburn 836: if (ref($usersections) eq 'HASH') {
837: $coltitles[1] = 'Your Section';
838: }
1.7 raeburn 839: foreach my $item (@coltitles) {
840: $output .= '<th>';
841: if (defined($sortname{$item})) {
842: $output .= '<a href="javascript:changeSort('."'$sortname{$item}'".')">'.&mt($item).'</a>';
1.24 raeburn 843: } elsif ($item eq 'Count') {
844: $output .= ' ';
1.7 raeburn 845: } else {
846: $output .= &mt($item);
847: }
848: $output .= '</th>';
1.1 raeburn 849: }
1.15 raeburn 850: if ($knownuser) {
851: if ($details) {
1.8 raeburn 852: $output .=
1.7 raeburn 853: '<th>'.&mt('Default Access Dates for Students').'</th>'.
854: '<th>'.&mt('Student Counts').'</th>'.
1.42 bisitz 855: '<th>'.&mt('Auto-enrollment of[_1]registered students','<br />').'</th>';
1.15 raeburn 856: } else {
1.27 raeburn 857: $output .= '<th>'.&mt('Details').'</th>';
1.8 raeburn 858: }
1.1 raeburn 859: }
1.27 raeburn 860: $output .= '<th>'.&mt('Self-enroll (if permitted)').'</th>';
1.7 raeburn 861: &Apache::loncommon::end_data_table_header_row();
1.15 raeburn 862: my %courseinfo = &build_courseinfo_hash($courses,$knownuser,$details,
863: $usersections);
1.7 raeburn 864: my %Sortby;
1.15 raeburn 865: foreach my $course (sort(keys(%{$courses}))) {
1.7 raeburn 866: if ($env{'form.sortby'} eq 'code') {
867: push(@{$Sortby{$courseinfo{$course}{'code'}}},$course);
1.35 raeburn 868: } elsif ($env{'form.sortby'} eq 'cats') {
869: push(@{$Sortby{$courseinfo{$course}{'categories'}}},$course);
1.7 raeburn 870: } elsif ($env{'form.sortby'} eq 'owner') {
1.22 raeburn 871: push(@{$Sortby{$courseinfo{$course}{'ownerlastnames'}}},$course);
1.7 raeburn 872: } else {
1.25 raeburn 873: my $clean_title = $courseinfo{$course}{'title'};
874: $clean_title =~ s/\W+//g;
875: if ($clean_title eq '') {
876: $clean_title = $courseinfo{$course}{'title'};
877: }
878: push(@{$Sortby{$clean_title}},$course);
1.7 raeburn 879: }
880: }
881: my @sorted_courses;
1.35 raeburn 882: if (($env{'form.sortby'} eq 'code') || ($env{'form.sortby'} eq 'owner') ||
883: ($env{'form.sortby'} eq 'cats')) {
1.7 raeburn 884: @sorted_courses = sort(keys(%Sortby));
1.6 raeburn 885: } else {
1.7 raeburn 886: @sorted_courses = sort { lc($a) cmp lc($b) } (keys(%Sortby));
1.1 raeburn 887: }
1.24 raeburn 888: my $count = 1;
1.7 raeburn 889: foreach my $item (@sorted_courses) {
890: foreach my $course (@{$Sortby{$item}}) {
891: $output.=&Apache::loncommon::start_data_table_row();
1.35 raeburn 892: $output.=&courseinfo_row($courseinfo{$course},$knownuser,$details,
893: \$count,$now,$course,$trails,$allitems);
1.7 raeburn 894: $output.=&Apache::loncommon::end_data_table_row();
895: }
1.1 raeburn 896: }
1.7 raeburn 897: $output .= &Apache::loncommon::end_data_table();
898: return $output;
899: }
900:
901: sub build_courseinfo_hash {
1.15 raeburn 902: my ($courses,$knownuser,$details,$usersections) = @_;
1.1 raeburn 903: my %courseinfo;
1.7 raeburn 904: my $now = time;
1.15 raeburn 905: foreach my $course (keys(%{$courses})) {
1.1 raeburn 906: my $descr;
1.22 raeburn 907: if (ref($courses->{$course}) eq 'HASH') {
908: $descr = $courses->{$course}{'description'};
1.1 raeburn 909: }
910: my $cleandesc=&HTML::Entities::encode($descr,'<>&"');
911: $cleandesc=~s/'/\\'/g;
1.10 raeburn 912: $cleandesc =~ s/^\s+//;
1.1 raeburn 913: my ($cdom,$cnum)=split(/\_/,$course);
1.39 raeburn 914: my ($instcode,$singleowner,$ttype,$selfenroll_types,
1.35 raeburn 915: $selfenroll_start,$selfenroll_end,@owners,%ownernames,$categories);
1.22 raeburn 916: if (ref($courses->{$course}) eq 'HASH') {
917: $descr = $courses->{$course}{'description'};
1.23 raeburn 918: $instcode = $courses->{$course}{'inst_code'};
1.22 raeburn 919: $singleowner = $courses->{$course}{'owner'};
920: $ttype = $courses->{$course}{'type'};
1.27 raeburn 921: $selfenroll_types = $courses->{$course}{'selfenroll_types'};
922: $selfenroll_start = $courses->{$course}{'selfenroll_start_date'};
923: $selfenroll_end = $courses->{$course}{'selfenroll_end_date'};
1.35 raeburn 924: $categories = $courses->{$course}{'categories'};
1.22 raeburn 925: push(@owners,$singleowner);
926: if (ref($courses->{$course}{'co-owners'}) eq 'ARRAY') {
927: foreach my $item (@{$courses->{$course}{'co-owners'}}) {
928: push(@owners,$item);
929: }
930: }
931: }
932: foreach my $owner (@owners) {
933: my ($ownername,$ownerdom) = @_;
934: if ($owner =~ /:/) {
935: ($ownername,$ownerdom) = split(/:/,$owner);
936: } else {
937: $ownername = $owner;
938: if ($owner ne '') {
939: $ownerdom = $cdom;
940: }
941: }
942: if ($ownername ne '' && $ownerdom ne '') {
943: my %namehash=&Apache::loncommon::getnames($ownername,$ownerdom);
944: $ownernames{$ownername.':'.$ownerdom} = \%namehash;
1.1 raeburn 945: }
946: }
947: $courseinfo{$course}{'cdom'} = $cdom;
948: $courseinfo{$course}{'cnum'} = $cnum;
949: $courseinfo{$course}{'code'} = $instcode;
1.22 raeburn 950: my @lastnames;
951: foreach my $owner (keys(%ownernames)) {
952: if (ref($ownernames{$owner}) eq 'HASH') {
953: push(@lastnames,$ownernames{$owner}{'lastname'});
954: }
955: }
956: $courseinfo{$course}{'ownerlastnames'} = join(', ',sort(@lastnames));
1.1 raeburn 957: $courseinfo{$course}{'title'} = $cleandesc;
1.22 raeburn 958: $courseinfo{$course}{'owner'} = $singleowner;
1.27 raeburn 959: $courseinfo{$course}{'selfenroll_types'} = $selfenroll_types;
960: $courseinfo{$course}{'selfenroll_start'} = $selfenroll_start;
961: $courseinfo{$course}{'selfenroll_end'} = $selfenroll_end;
1.35 raeburn 962: $courseinfo{$course}{'categories'} = $categories;
1.7 raeburn 963:
964: my %coursehash = &Apache::lonnet::dump('environment',$cdom,$cnum);
965: my @classids;
966: my @crosslistings;
1.15 raeburn 967: my ($seclist,$numsec) =
968: &identify_sections($coursehash{'internal.sectionnums'});
969: if (ref($usersections) eq 'HASH') {
970: if (ref($usersections->{$course}) eq 'ARRAY') {
971: $seclist = join(', ',@{$usersections->{$course}});
972: }
973: }
1.7 raeburn 974: $courseinfo{$course}{'seclist'} = $seclist;
1.15 raeburn 975: my ($xlist_items,$numxlist) =
976: &identify_sections($coursehash{'internal.crosslistings'});
1.7 raeburn 977: my $showsyllabus = 1; # default is to include a syllabus link
978: if (defined($coursehash{'showsyllabus'})) {
979: $showsyllabus = $coursehash{'showsyllabus'};
980: }
981: $courseinfo{$course}{'showsyllabus'} = $showsyllabus;
1.15 raeburn 982: if (((defined($env{'form.coursenum'}) && ($cnum eq $env{'form.coursenum'}))) ||
1.22 raeburn 983: ($knownuser && ($details == 1))) {
1.15 raeburn 984: $courseinfo{$course}{'counts'} = &count_students($cdom,$cnum,$numsec);
985: $courseinfo{$course}{'autoenrollment'} =
986: &autoenroll_info(\%coursehash,$now,$seclist,$xlist_items,
1.22 raeburn 987: $instcode,\@owners,$cdom,$cnum);
1.15 raeburn 988:
989: my $startaccess = '';
990: my $endaccess = '';
991: my $accessdates;
992: if ( defined($coursehash{'default_enrollment_start_date'}) ) {
993: $startaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_start_date'});
994: }
995: if ( defined($coursehash{'default_enrollment_end_date'}) ) {
996: $endaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_end_date'});
997: if ($coursehash{'default_enrollment_end_date'} == 0) {
1.34 raeburn 998: $endaccess = &mt('No ending date');
1.15 raeburn 999: }
1000: }
1001: if ($startaccess) {
1.42 bisitz 1002: $accessdates .= '<i>'.&mt('From:[_1]','</i> '.$startaccess).'<br />';
1.7 raeburn 1003: }
1.15 raeburn 1004: if ($endaccess) {
1.42 bisitz 1005: $accessdates .= '<i>'.&mt('To:[_1]','</i> '.$endaccess).'<br />';
1.15 raeburn 1006: }
1.34 raeburn 1007: if (($selfenroll_types ne '') &&
1008: ($selfenroll_end > 0 && $selfenroll_end > $now)) {
1009: my ($selfenroll_start_access,$selfenroll_end_access);
1010: if (($coursehash{'default_enrollment_start_date'} ne
1011: $coursehash{'internal.selfenroll_start_access'}) ||
1012: ($coursehash{'default_enrollment_end_date'} ne
1013: $coursehash{'internal.selfenroll_end_access'})) {
1014: if ( defined($coursehash{'internal.selfenroll_start_access'}) ) {
1015: $selfenroll_start_access = &Apache::lonlocal::locallocaltime($coursehash{'internal.selfenroll_start_access'});
1016: }
1017: if ( defined($coursehash{'default_enrollment_end_date'}) ) {
1018: $selfenroll_end_access = &Apache::lonlocal::locallocaltime($coursehash{'internal.selfenroll_end_access'});
1019: if ($coursehash{'internal.selfenroll_end_access'} == 0) {
1020: $selfenroll_end_access = &mt('No ending date');
1021: }
1022: }
1023: if ($selfenroll_start_access || $selfenroll_end_access) {
1024: $accessdates .= '<br/><br /><i>'.&mt('Self-enrollers:').'</i><br />';
1025: if ($selfenroll_start_access) {
1.42 bisitz 1026: $accessdates .= '<i>'.&mt('From:[_1]','</i> '.$selfenroll_start_access).'<br />';
1.34 raeburn 1027: }
1028: if ($selfenroll_end_access) {
1.42 bisitz 1029: $accessdates .= '<i>'.&mt('To:[_1]','</i> '.$selfenroll_end_access).'<br />';
1.34 raeburn 1030: }
1031: }
1032: }
1033: }
1.15 raeburn 1034: $courseinfo{$course}{'access'} = $accessdates;
1.1 raeburn 1035: }
1.7 raeburn 1036: if ($xlist_items eq '') {
1037: $xlist_items = &mt('No');
1.1 raeburn 1038: }
1.7 raeburn 1039: $courseinfo{$course}{'xlist'} = $xlist_items;
1.1 raeburn 1040: }
1.7 raeburn 1041: return %courseinfo;
1.1 raeburn 1042: }
1043:
1.7 raeburn 1044: sub count_students {
1.15 raeburn 1045: my ($cdom,$cnum,$numsec) = @_;
1.1 raeburn 1046: my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cnum);
1.7 raeburn 1047: my %student_count = (
1048: Active => 0,
1049: Future => 0,
1050: Expired => 0,
1051: );
1.1 raeburn 1052: my %idx;
1053: $idx{'status'} = &Apache::loncoursedata::CL_STATUS();
1.4 albertel 1054: my %status_title = &Apache::lonlocal::texthash(
1.1 raeburn 1055: Expired => 'Previous access',
1056: Active => 'Current access',
1057: Future => 'Future access',
1058: );
1.7 raeburn 1059:
1.4 albertel 1060: while (my ($student,$data) = each(%$classlist)) {
1.1 raeburn 1061: $student_count{$data->[$idx{'status'}]} ++;
1062: }
1.7 raeburn 1063:
1.43 bisitz 1064: my $countslist = &mt('[quant,_1,section:,sections:,No sections]',$numsec).'<br />';
1.7 raeburn 1065: foreach my $status ('Active','Future') {
1.43 bisitz 1066: $countslist .= '<span class="LC_nobreak">'.$status_title{$status}.': '.
1067: $student_count{$status}.'</span><br />';
1.1 raeburn 1068: }
1.7 raeburn 1069: return $countslist;
1070: }
1071:
1072: sub courseinfo_row {
1.35 raeburn 1073: my ($info,$knownuser,$details,$countref,$now,$course,$trails,$allitems) = @_;
1.7 raeburn 1074: my ($cdom,$cnum,$title,$ownerlast,$code,$owner,$seclist,$xlist_items,
1.35 raeburn 1075: $accessdates,$showsyllabus,$counts,$autoenrollment,$output,$categories);
1.7 raeburn 1076: if (ref($info) eq 'HASH') {
1077: $cdom = $info->{'cdom'};
1078: $cnum = $info->{'cnum'};
1079: $title = $info->{'title'};
1.22 raeburn 1080: $ownerlast = $info->{'ownerlastnames'};
1.7 raeburn 1081: $code = $info->{'code'};
1082: $owner = $info->{'owner'};
1083: $seclist = $info->{'seclist'};
1084: $xlist_items = $info->{'xlist'};
1085: $accessdates = $info->{'access'};
1086: $counts = $info->{'counts'};
1087: $autoenrollment = $info->{'autoenrollment'};
1088: $showsyllabus = $info->{'showsyllabus'};
1.35 raeburn 1089: $categories = $info->{'categories'};
1.7 raeburn 1090: } else {
1091: $output = '<td colspan="8">'.&mt('No information available for [_1].',
1092: $code).'</td>';
1093: return $output;
1.2 raeburn 1094: }
1.35 raeburn 1095: $output .= '<td>'.$$countref.'</td>';
1096: if ($env{'form.currcat_0'} eq 'instcode::0') {
1097: $output .= '<td>'.$code.'</td>';
1098: } else {
1099: my ($categorylist,@cats);
1100: if ($categories ne '') {
1101: @cats = split('&',$categories);
1102: }
1103: if ((ref($trails) eq 'ARRAY') && (ref($allitems) eq 'HASH')) {
1104: my @categories = map { $trails->[$allitems->{$_}]; } @cats;
1105: $categorylist = join('<br />',@categories);
1106: }
1107: if ($categorylist eq '') {
1108: $categorylist = ' ';
1109: }
1110: $output .= '<td>'.$categorylist.'</td>';
1111: }
1112: $output .= '<td>'.$seclist.'</td>'.
1.7 raeburn 1113: '<td>'.$xlist_items.'</td>'.
1114: '<td>'.$title.' <font size="-2">';
1.2 raeburn 1115: if ($showsyllabus) {
1.40 raeburn 1116: $output .= '<a href="javascript:ToSyllabus('."'$cdom','$cnum'".')">'.&mt('Syllabus').'</a>';
1.7 raeburn 1117: } else {
1118: $output .= ' ';
1.2 raeburn 1119: }
1120: $output .= '</font></td>'.
1.7 raeburn 1121: '<td>'.$ownerlast.'</td>';
1.15 raeburn 1122: if ($knownuser) {
1123: if ($details) {
1.8 raeburn 1124: $output .=
1.7 raeburn 1125: '<td>'.$accessdates.'</td>'.
1126: '<td>'.$counts.'</td>'.
1127: '<td>'.$autoenrollment.'</td>';
1.15 raeburn 1128: } else {
1129: $output .= "<td><a href=\"javascript:setCourseId('$cnum')\">".&mt('Show more details').'</a></td>';
1.8 raeburn 1130: }
1.7 raeburn 1131: }
1.27 raeburn 1132: my $selfenroll;
1133: if ($info->{'selfenroll_types'}) {
1134: my $showstart = &Apache::lonlocal::locallocaltime($info->{'selfenroll_start'});
1135: my $showend = &Apache::lonlocal::locallocaltime($info->{'selfenroll_end'});
1136: if (($info->{'selfenroll_end'} > 0) && ($info->{'selfenroll_end'} > $now)) {
1137: if (($info->{'selfenroll_start'} > 0) && ($info->{'selfenroll_start'} > $now)) {
1138: $output .= '<td>'.&mt('Starts: [_1]','<span class="LC_cusr_emph">'.$showstart.'</span>').'<br />'.&mt('Ends: [_1]','<span class="LC_cusr_emph">'.$showend.'</span>').'</td>';
1139: } else {
1.41 raeburn 1140: $output .= '<td><a href="javascript:ToSelfenroll('."'$course'".')">'.&mt('Enroll in course').'</a></td>';
1.27 raeburn 1141: }
1142: $selfenroll = 1;
1143: }
1144: }
1145: if (!$selfenroll) {
1146: $output .= '<td> </td>';
1147: }
1.24 raeburn 1148: $$countref ++;
1.1 raeburn 1149: return $output;
1150: }
1151:
1152: sub identify_sections {
1153: my ($seclist) = @_;
1154: my @secnums;
1155: if ($seclist =~ /,/) {
1.4 albertel 1156: my @sections = split(/,/,$seclist);
1.1 raeburn 1157: foreach my $sec (@sections) {
1158: $sec =~ s/:[^:]*$//;
1159: push(@secnums,$sec);
1160: }
1161: } else {
1162: if ($seclist =~ m/^([^:]+):/) {
1163: my $sec = $1;
1.4 albertel 1164: if (!grep(/^\Q$sec\E$/,@secnums)) {
1165: push(@secnums,$sec);
1.1 raeburn 1166: }
1167: }
1168: }
1169: @secnums = sort {$a <=> $b} @secnums;
1.39 raeburn 1170: $seclist = join(', ',@secnums);
1.15 raeburn 1171: my $numsec = @secnums;
1172: return ($seclist,$numsec);
1.1 raeburn 1173: }
1174:
1.2 raeburn 1175: sub get_valid_classes {
1.22 raeburn 1176: my ($seclist,$xlist_items,$crscode,$owners,$cdom,$cnum) = @_;
1.2 raeburn 1177: my $response;
1178: my %validations;
1179: @{$validations{'sections'}} = ();
1180: @{$validations{'xlists'}} = ();
1181: my $totalitems = 0;
1182: if ($seclist) {
1.13 raeburn 1183: foreach my $sec (split(/, /,$seclist)) {
1.2 raeburn 1184: my $class = $crscode.$sec;
1.22 raeburn 1185: if (&Apache::lonnet::auto_validate_class_sec($cdom,$cnum,$owners,
1.3 albertel 1186: $class) eq 'ok') {
1.2 raeburn 1187: if (!grep(/^\Q$sec$\E/,@{$validations{'sections'}})) {
1.4 albertel 1188: push(@{$validations{'sections'}},$sec);
1.2 raeburn 1189: $totalitems ++;
1190: }
1191: }
1192: }
1193: }
1194: if ($xlist_items) {
1.13 raeburn 1195: foreach my $item (split(/, /,$xlist_items)) {
1.22 raeburn 1196: if (&Apache::lonnet::auto_validate_class_sec($cdom,$cnum,$owners,
1.3 albertel 1197: $item) eq 'ok') {
1.2 raeburn 1198: if (!grep(/^\Q$item$\E/,@{$validations{'xlists'}})) {
1.4 albertel 1199: push(@{$validations{'xlists'}},$item);
1.2 raeburn 1200: $totalitems ++;
1201: }
1202: }
1203: }
1204: }
1205: if ($totalitems > 0) {
1206: if (@{$validations{'sections'}}) {
1.42 bisitz 1207: $response = &mt('Sections:').' '.
1.14 raeburn 1208: join(', ',@{$validations{'sections'}}).'<br />';
1.2 raeburn 1209: }
1210: if (@{$validations{'xlists'}}) {
1.42 bisitz 1211: $response .= &mt('Courses:').' '.
1.14 raeburn 1212: join(', ',@{$validations{'xlists'}});
1.2 raeburn 1213: }
1214: }
1215: return $response;
1216: }
1217:
1.6 raeburn 1218: sub javascript_select_filler {
1219: my ($formname,$scripttext,$codetitles,$longtitles_str,$allidlist) = @_;
1220: my $output = <<END;
1221: function courseSet() {
1222: var longtitles = new Array ("$longtitles_str");
1223: var valyr = document.$formname.Year.options[document.$formname.Year.selectedIndex].value
1224: var valsem = document.$formname.Semester.options[document.$formname.Semester.selectedIndex].value
1225: var valdept = document.$formname.Department.options[document.$formname.Department.selectedIndex].value
1226: var valclass = document.$formname.Number.options[document.$formname.Number.selectedIndex].value
1227: var idyears = new Array("$allidlist");
1228: var idyr = -1;
1229: var idsem = -1;
1230: var iddept = -1;
1231: document.$formname.Number.length = 0;
1232:
1233: $scripttext
1234:
1235: selYear = document.$formname.Year.selectedIndex-1;
1236: selSemester = document.$formname.Semester.selectedIndex-1;
1237: selDepartment = document.$formname.Department.selectedIndex-1;
1238: if (selYear == -1) {
1239: if (selSemester == -1) {
1240: if (selDepartment > -1) {
1241: document.$formname.Number.options[0] = new Option('All','0',false,false);
1242: for (var k=0; k<idcse_by_dep[selDepartment].length; k++) {
1243: document.$formname.Number.options[k+1] = new Option(idcse_by_dep[selDepartment][k],idcse_by_dep[selDepartment][k],false,false);
1244:
1245: }
1246: }
1247: else {
1248: document.$formname.Number.options[0] = new Option("All","0",true,true);
1249: }
1250: }
1251: else {
1252: if (selDepartment > -1) {
1253: for (var i=0; i<idcse_by_sem_sems.length; i++) {
1254: if (idcse_by_sem_sems[i] == valsem) {
1255: idsem = i;
1256: }
1257: }
1258: if (idsem != -1) {
1259: for (var i=0; i<idcse_by_sem_dept[idsem].length; i++) {
1260: if (idcse_by_sem_dept[idsem][i] == valdept) {
1261: iddept = i;
1262: }
1263: }
1264: }
1265: if (iddept != -1) {
1266: document.$formname.Number.options[0] = new Option('All','0',false,false);
1267: for (var k=0; k<idcse_by_sem_num[idsem][iddept].length; k++) {
1268: document.$formname.Number.options[k+1] = new Option(idcse_by_sem_num[idsem][iddept][k],idcse_by_sem_num[idsem][iddept][k],false,false);
1269: }
1270: }
1271: else {
1272: document.$formname.Number.options[0] = new Option('No courses','0',true,true);
1273: }
1274: }
1275: else {
1276: document.$formname.Number.options[0] = new Option("All","0",true,true);
1277: }
1278: }
1279: }
1280: else {
1281: if (selSemester == -1) {
1282: if (selDepartment > -1) {
1283: for (var i=0; i<idcse_by_yr_year.length; i++) {
1284: if (idcse_by_yr_year[i] == valyr) {
1285: idyr = i;
1286: }
1287: }
1288: if (idyr != -1) {
1289: for (var i=0; i<idcse_by_yr_dept[idyr].length; i++) {
1290: if (idcse_by_yr_dept[idyr][i] == valdept) {
1291: iddept = i;
1292: }
1293: }
1294: }
1295: if (iddept != -1) {
1296: document.$formname.Number.options[0] = new Option('All','0',false,false);
1297: for (var k=0; k<idcse_by_yr_num[idyr][iddept].length; k++) {
1298: document.$formname.Number.options[k+1] = new Option(idcse_by_yr_num[idyr][iddept][k],idcse_by_yr_num[idyr][iddept][k],false,false);
1299: }
1300: }
1301: else {
1302: document.$formname.Number.options[0] = new Option('No courses','0',true,true);
1303: }
1304: }
1305: else {
1306: document.$formname.Number.options[0] = new Option("All","0",true,true);
1307: }
1308: }
1309: else {
1.9 raeburn 1310: if (selDepartment > -1) {
1311: for (var k=0; k<idyears.length; k++) {
1312: if (idyears[k] == valyr) {
1313: idyr = k;
1314: }
1.6 raeburn 1315: }
1.9 raeburn 1316: if (idyr != -1) {
1317: for (var k=0; k<idsems[idyr].length; k++) {
1318: if (idsems[idyr][k] == valsem) {
1319: idsem = k;
1320: }
1.6 raeburn 1321: }
1322: }
1.9 raeburn 1323: if (idsem != -1) {
1324: for (var k=0; k<idcodes[idyr][idsem].length; k++) {
1325: if (idcodes[idyr][idsem][k] == valdept) {
1326: iddept = k;
1327: }
1.6 raeburn 1328: }
1329: }
1.9 raeburn 1330: if (iddept != -1) {
1331: document.$formname.Number.options[0] = new Option('All','0',false,false);
1332: for (var i=0; i<idcourses[idyr][idsem][iddept].length; i++) {
1333: var display = idcourses[idyr][idsem][iddept][i];
1334: if (longtitles[3] == 1) {
1335: if (idcourseslongs[idyr][idsem][iddept][i] != "") {
1336: display = idcourseslongs[idyr][idsem][iddept][i]
1337: }
1.6 raeburn 1338: }
1.9 raeburn 1339: document.$formname.Number.options[i+1] = new Option(display,idcourses[idyr][idsem][iddept][i],false,false)
1.6 raeburn 1340: }
1.9 raeburn 1341: }
1342: else {
1343: document.$formname.Number.options[0] = new Option('No courses','0',true,true);
1.6 raeburn 1344: }
1.9 raeburn 1345: }
1.6 raeburn 1346: else {
1.9 raeburn 1347: document.$formname.Number.options[0] = new Option('All','0',true,true);
1.6 raeburn 1348: }
1349: }
1350: document.$formname.Number.selectedIndex = 0
1351: }
1352: }
1353: END
1354: return $output;
1355: }
1.1 raeburn 1356:
1.7 raeburn 1357: sub autoenroll_info {
1.22 raeburn 1358: my ($coursehash,$now,$seclist,$xlist_items,$code,$owners,$cdom,$cnum) = @_;
1.7 raeburn 1359: my $autoenrolldates = &mt('Not enabled');
1360: if (defined($coursehash->{'internal.autoadds'}) && $coursehash->{'internal.autoadds'} == 1) {
1361: my ($autostart,$autoend);
1362: if ( defined($coursehash->{'internal.autostart'}) ) {
1363: $autostart = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autostart'});
1364: }
1365: if ( defined($coursehash->{'internal.autoend'}) ) {
1366: $autoend = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autoend'});
1367: }
1368: if ($coursehash->{'internal.autostart'} > $now) {
1369: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
1370: $autoenrolldates = &mt('Not enabled');
1371: } else {
1372: my $valid_classes =
1373: &get_valid_classes($seclist,$xlist_items,$code,
1.22 raeburn 1374: $owners,$cdom,$cnum);
1.7 raeburn 1375: if ($valid_classes ne '') {
1.42 bisitz 1376: $autoenrolldates = &mt('Not enabled').'<br />'
1377: .&mt('Starts: [_1]',$autostart)
1378: .'<br />'.$valid_classes;
1379: }
1.7 raeburn 1380: }
1381: } else {
1382: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
1.42 bisitz 1383: $autoenrolldates = &mt('Not enabled').'<br />'
1384: .&mt('Ended: [_1]',$autoend);
1.7 raeburn 1385: } else {
1386: my $valid_classes = &get_valid_classes($seclist,$xlist_items,
1.22 raeburn 1387: $code,$owners,$cdom,$cnum);
1.7 raeburn 1388: if ($valid_classes ne '') {
1.42 bisitz 1389: $autoenrolldates = &mt('Currently enabled').'<br />'.
1.7 raeburn 1390: $valid_classes;
1391: }
1392: }
1393: }
1394: }
1395: return $autoenrolldates;
1396: }
1397:
1.8 raeburn 1398: sub user_is_known {
1399: my $known = 0;
1400: if ($env{'user.name'} ne '' && $env{'user.name'} ne 'public'
1401: && $env{'user.domain'} ne '' && $env{'user.domain'} ne 'public') {
1402: $known = 1;
1403: }
1404: return $known;
1405: }
1406:
1.1 raeburn 1407: 1;
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