1: # The LearningOnline Network with CAPA
2: # Handler for displaying the course catalog interface
3: #
4: # $Id: coursecatalog.pm,v 1.88.2.5 2019/07/26 15:32:34 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: use LONCAPA::lonauthcgi;
42:
43: sub handler {
44: my ($r) = @_;
45: &Apache::loncommon::content_type($r,'text/html');
46: $r->send_http_header;
47: if ($r->header_only) {
48: return OK;
49: }
50: my $handle = &Apache::lonnet::check_for_valid_session($r);
51: my $lonidsdir=$r->dir_config('lonIDsDir');
52: if ($handle ne '') {
53: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
54: }
55: &Apache::lonacc::get_posted_cgi($r);
56: &Apache::lonlocal::get_language_handle($r);
57: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
58: ['sortby','showdom']);
59:
60: my $codedom = &Apache::lonnet::default_login_domain();
61:
62: if (($env{'user.domain'} ne '') && ($env{'user.domain'} ne 'public')) {
63: $codedom = $env{'user.domain'};
64: if ($env{'request.role.domain'} ne '') {
65: $codedom = $env{'request.role.domain'};
66: }
67: }
68: my $formname = 'coursecatalog';
69: if ($env{'form.showdom'} ne '') {
70: $env{'form.showdom'} = &LONCAPA::clean_domain($env{'form.showdom'});
71: if (&Apache::lonnet::domain($env{'form.showdom'}) ne '') {
72: $codedom = $env{'form.showdom'};
73: } else {
74: $env{'form.showdom'} = '';
75: }
76: }
77: my $domdesc = &Apache::lonnet::domain($codedom,'description');
78: &Apache::lonhtmlcommon::clear_breadcrumbs();
79:
80: my $crscats = &Apache::lonnet::get_dom_cats($codedom);
81: my %domdefaults = &Apache::lonnet::get_domain_defaults($codedom);
82: my $knownuser = &user_is_known();
83: my $canviewall = &canview_all($knownuser,$codedom);
84:
85: my ($cathash,$cattype);
86: if (ref($crscats) eq 'HASH') {
87: %{$cathash} = %{$crscats};
88: } else {
89: $cathash = {};
90: }
91: if ($knownuser || $canviewall) {
92: $cattype = $domdefaults{'catauth'};
93: } else {
94: $cattype = $domdefaults{'catunauth'};
95: }
96: if ($cattype eq '') {
97: $cattype = 'std';
98: }
99: if ($cattype eq 'none') {
100: $r->print(&Apache::loncommon::start_page('Course/Community Catalog'));
101: &Apache::lonhtmlcommon::add_breadcrumb
102: ({href=>"/adm/coursecatalog",
103: text=>"Course/Community Catalog"});
104: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog'));
105: if ($knownuser || $canviewall) {
106: $r->print('<div>'.&mt('No catalog of LON-CAPA courses/communities is provided for: [_1]',$domdesc).'</div>');
107: } else {
108: if ($domdefaults{'catauth'} eq 'none') {
109: $r->print('<div>'.&mt('No catalog of LON-CAPA courses/communities is provided for: [_1]',$domdesc).'</div>');
110: } else {
111: $r->print('<div>'.&mt('The catalog of LON-CAPA courses/communities provided for: "[_1]" is only available to users who are logged in.',$domdesc).'</div>');
112: }
113: }
114: $r->print(&Apache::loncommon::end_page());
115: return OK;
116: }
117:
118: my $cnum;
119: if ($cattype eq 'codesrch') {
120: my ($uniquecode,$codemsg,$brtext);
121: if ($env{'form.uniquecode'}) {
122: $uniquecode = $env{'form.uniquecode'};
123: $uniquecode =~ s/^\s+|\s+$//g;
124: }
125: my $js = '<script type="text/javascript">'."\n".
126: '// <![CDATA['."\n".
127: &courselink_javascript()."\n".
128: '// ]]>'."\n".
129: '</script>'."\n";
130: $r->print(&Apache::loncommon::start_page('Search for a Course/Community',$js));
131: if ($uniquecode =~ /^\w{6}$/) {
132: &Apache::lonhtmlcommon::add_breadcrumb
133: ({href=>"/adm/coursecatalog",
134: text=>"Course/Community Catalog"});
135: $brtext = 'Search Result';
136: } else {
137: $brtext = 'Course/Community Catalog';
138: }
139: &Apache::lonhtmlcommon::add_breadcrumb
140: ({href=>"/adm/coursecatalog",
141: text=>"$brtext"});
142: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog'));
143: $r->print(&coursesearch($codedom,$domdesc,$uniquecode));
144: if ($uniquecode =~ /^\w{6}$/) {
145: $r->print('<hr />');
146: my $confname = $codedom.'-domainconfig';
147: my %codes = &Apache::lonnet::get('uniquecodes',[$uniquecode],$codedom,$confname);
148: if ($codes{$uniquecode}) {
149: $cnum = $codes{$uniquecode};
150: my %courses = &Apache::lonnet::courseiddump($codedom,'.',1,'.','.',
151: $cnum,undef,undef,'.',1);
152: if (keys(%courses)) {
153: $env{'form.coursenum'} = $cnum;
154: my %courseinfo = &build_courseinfo_hash(\%courses,$knownuser,$codedom,$canviewall);
155: undef($env{'form.coursenum'});
156: if (ref($courseinfo{$codedom.'_'.$cnum}) eq 'HASH') {
157: $r->print(&Apache::lonhtmlcommon::start_pick_box());
158: my @cols = ('title','ownerlastnames','seclist','access');
159: my %lt = &Apache::lonlocal::texthash(
160: title => 'Title',
161: ownerlastnames => 'Owner & Co-owner(s)',
162: seclist => 'Sections',
163: access => 'Default Access Dates for Students',
164: );
165: my @shown;
166: foreach my $item (@cols) {
167: if ($courseinfo{$codedom.'_'.$cnum}{$item}) {
168: push(@shown,$item);
169: }
170: }
171: my $num = 0;
172: foreach my $item (@shown) {
173: $num ++;
174: $r->print(&Apache::lonhtmlcommon::row_title($lt{$item}).
175: $courseinfo{$codedom.'_'.$cnum}{$item});
176: if ($item eq 'title') {
177: if ($courseinfo{$codedom.'_'.$cnum}{'showsyllabus'}) {
178: $r->print(' <font size="-2">'.
179: '<a href="javascript:ToSyllabus('."'$codedom','$cnum'".')">'.
180: &mt('Syllabus').'</a></font>');
181: }
182: }
183: my $arg = ( $num == scalar(@shown) ? 1 : '' );
184: $r->print(&Apache::lonhtmlcommon::row_closure($arg));
185: }
186: $r->print(&Apache::lonhtmlcommon::end_pick_box());
187: my $selfenroll = &selfenroll_status($courseinfo{$codedom.'_'.$cnum},$codedom.'_'.$cnum);
188: if ($selfenroll) {
189: $r->print('<br />'.$selfenroll);
190: }
191: $r->print('<form name="linklaunch" method="post" action="">'."\n".
192: '<input type="hidden" name="backto" value="coursecatalog" />'."\n".
193: '<input type="hidden" name="courseid" value="" />'."\n".
194: '</form>'."\n");
195:
196: } else {
197: $codemsg = &mt('Code matched, but course ID to which this mapped is invalid.');
198: }
199: } else {
200: $codemsg = &mt('Code matched, but course ID to which this mapped is invalid.');
201: }
202: } else {
203: $codemsg = &mt('No match');
204: }
205: }
206: $r->print('<br />'.&Apache::loncommon::end_page());
207: return OK;
208: } else {
209: if ($env{'form.coursenum'} ne '') {
210: if ($env{'form.coursenum'} =~ /^$LONCAPA::match_courseid$/) {
211: $cnum = $env{'form.coursenum'};
212: } else {
213: delete($env{'form.coursenum'});
214: }
215: }
216: }
217:
218: my (@cats,@trails,%allitems,%idx,@jsarray,%subcathash,$subcats,%maxd,
219: $toplevelstr,$maxdepthstr);
220: if ($env{'form.withsubcats'}) {
221: $subcats = \%subcathash;
222: }
223: &Apache::loncommon::extract_categories($cathash,\@cats,\@trails,\%allitems,
224: \%idx,\@jsarray,$subcats,\%maxd);
225: if (ref($cats[0]) eq 'ARRAY') {
226: foreach my $item (@{$cats[0]}) {
227: $toplevelstr .= "'".&js_escape($item)."::0',";
228: $maxdepthstr .= "'$maxd{$item}',";
229: }
230: $toplevelstr =~ s/,$//;
231: $maxdepthstr =~ s/,$//;
232: }
233: &validate_input($codedom,\@cats,\%maxd,$cathash);
234: my ($numtitles,@codetitles);
235: if (($env{'form.coursenum'} ne '') && ($knownuser)) {
236: &course_details($r,$codedom,$formname,$domdesc,\@trails,\%allitems,\@codetitles);
237: } else {
238: my ($catlinks,$has_subcats,$selitem) = &category_breadcrumbs($codedom,@cats);
239: my $wasacctext = &get_wasactive_text();
240: my $catjs = <<"ENDSCRIPT";
241:
242: function setCatDepth(depth) {
243: var depth = parseInt(depth);
244: if (depth !== NaN) {
245: if (depth > 0) {
246: var possmaxd = 0;
247: var toplevel = new Array($toplevelstr);
248: var maxdepths = new Array($maxdepthstr);
249: if (toplevel.length) {
250: for (var i=0; i<toplevel.length; i++) {
251: var item = unescape(toplevel[i]);
252: if (item == document.coursecats.currcat_0.value) {
253: possmaxd = maxdepths[i];
254: break;
255: }
256: }
257: }
258: if (depth > possmaxd) {
259: depth = possmaxd;
260: }
261: }
262: document.coursecats.catalog_maxdepth.value = depth;
263: } else {
264: document.coursecats.currcat_0.value = '';
265: document.coursecats.catalog_maxdepth.value = '';
266: }
267: document.coursecats.submit();
268: return;
269: }
270:
271: function changeSort(caller) {
272: document.$formname.sortby.value = caller;
273: document.$formname.submit();
274: }
275:
276: function setCourseId(caller) {
277: document.$formname.coursenum.value = caller;
278: document.$formname.submit();
279: }
280:
281: ENDSCRIPT
282: $catjs .= &courselink_javascript();
283: if (&user_is_dc($codedom) || $canviewall) {
284: $catjs .= <<ENDTOGGJS
285:
286: function toggleStatuses() {
287: if (document.$formname.showdetails.checked) {
288: document.getElementById('statuschoice').style.display='block';
289: document.getElementById('statuscell').style.borderLeft='1px solid';
290: } else {
291: document.getElementById('statuschoice').style.display='none';
292: document.getElementById('statuscell').style.borderLeft='0px';
293: }
294: return;
295: }
296:
297: function toggleWasActive() {
298: if (document.getElementById('counts_Previous')) {
299: if (document.getElementById('counts_Previous').checked) {
300: document.getElementById('choosewasactive').style.display='block';
301: document.getElementById('choosewasacctext').innerHTML = '$wasacctext';
302: } else {
303: document.getElementById('choosewasactive').style.display='none';
304: document.getElementById('choosewasacctext').innerHTML = '';
305: }
306: }
307: return;
308: }
309:
310: ENDTOGGJS
311: }
312: if ($env{'form.currcat_0'} eq 'instcode::0') {
313: $numtitles = &instcode_course_selector($r,$codedom,$formname,$domdesc,
314: $catlinks,$catjs,\@codetitles,$cattype,$canviewall);
315: if ($env{'form.state'} eq 'listing') {
316: $r->print(&print_course_listing($codedom,$numtitles,undef,undef,undef,
317: \@codetitles,$canviewall));
318: }
319: } else {
320: my (%add_entries);
321: my ($currdepth,$deeper) = &get_depth_values();
322: if ($selitem) {
323: my $alert = &mt('Choose a subcategory to display');
324: if (!$deeper) {
325: $alert = &mt('Choose a category to display');
326: }
327: &js_escape(\$alert);
328: $catjs .= <<ENDJS;
329: function check_selected() {
330: if (document.coursecats.$selitem.options[document.coursecats.$selitem.selectedIndex].value == "") {
331: alert('$alert');
332: return false;
333: }
334: }
335: ENDJS
336: }
337: $catjs = '<script type="text/javascript">'."\n".$catjs."\n".'</script>';
338: &cat_header($r,$codedom,$catjs,\%add_entries,$catlinks,undef,$cattype);
339: if ($env{'form.currcat_0'} ne '') {
340: $r->print('<form name="'.$formname.
341: '" method="post" action="/adm/coursecatalog">'.
342: &additional_filters($codedom,$has_subcats,$canviewall)."\n");
343: $r->print('<input type="hidden" name="catalog_maxdepth" value="'.
344: $deeper.'" />'."\n");
345: for (my $i=0; $i<$deeper; $i++) {
346: $r->print('<input type="hidden" name="currcat_'.$i.'" value="'.$env{'form.currcat_'.$i}.'" />'."\n");
347: }
348: my $display_button;
349: if ($env{'form.currcat_0'} eq 'communities::0') {
350: $display_button = &mt('Display communities');
351: } else {
352: $display_button = &mt('Display courses');
353: }
354: $r->print('<input type="hidden" name="coursenum" value="" />'."\n".
355: '<input type="hidden" name="sortby" value="" />'."\n".
356: '<input type="hidden" name="state" value="listing" />'."\n".
357: '<input type="hidden" name="showdom" value="'.
358: $env{'form.showdom'}.'" />'.
359: '<input type="submit" name="catalogfilter" value="'.
360: $display_button.'" /></form><br /><br />');
361: }
362: if ($env{'form.state'} eq 'listing') {
363: $r->print(&print_course_listing($codedom,undef,\@trails,\%allitems,$subcats,\@codetitles,
364: $canviewall));
365: }
366: }
367: }
368: $r->print('<br />'.&Apache::loncommon::end_page());
369: return OK;
370: }
371:
372: sub validate_input {
373: my ($codedom,$cats,$maxd,$configref) = @_;
374: my $currcat = '';
375: my $depth = 0;
376: if ($env{'form.catalog_maxdepth'} ne '') {
377: $env{'form.catalog_maxdepth'} =~ s{\D}{}g;
378: }
379: if ((ref($cats) eq 'ARRAY') && (ref($maxd) eq 'HASH')) {
380: if (ref($cats->[0]) eq 'ARRAY') {
381: if (@{$cats->[0]} == 1) {
382: if ($cats->[0][0] eq 'instcode') {
383: $currcat = 'instcode::0';
384: } elsif ($cats->[0][0] eq 'communities') {
385: $currcat = 'communities::0';
386: } elsif ($cats->[0][0] eq 'placement') {
387: $currcat = 'placement::0';
388: } else {
389: my $name = $cats->[0][0];
390: $currcat = &escape($name).'::0';
391: }
392: if (exists($maxd->{$cats->[0][0]})) {
393: if ($env{'form.catalog_maxdepth'} <= $maxd->{$cats->[0][0]}) {
394: $depth = $env{'form.catalog_maxdepth'};
395: } else {
396: $depth = $maxd->{$cats->[0][0]};
397: }
398: }
399: } elsif ((@{$cats->[0]} > 1) && ($env{'form.currcat_0'} ne '')) {
400: my ($escname) = ($env{'form.currcat_0'} =~ /^([^:]+)\:\:0$/);
401: if ($escname =~ /^instcode|communities|placement$/) {
402: $currcat = $env{'form.currcat_0'};
403: if (exists($maxd->{$escname})) {
404: if ($env{'form.catalog_maxdepth'} <= $maxd->{$escname}) {
405: $depth = $env{'form.catalog_maxdepth'};
406: } else {
407: $depth = $maxd->{$escname};
408: }
409: } else {
410: $depth = 1;
411: }
412: } elsif ($escname ne '') {
413: my $name = &unescape($escname);
414: if (grep(/^\Q$name\E$/,@{$cats->[0]})) {
415: $currcat = $env{'form.currcat_0'};
416: if (exists($maxd->{$name})) {
417: if ($env{'form.catalog_maxdepth'} <= $maxd->{$name}) {
418: $depth = $env{'form.catalog_maxdepth'};
419: } else {
420: $depth = $maxd->{$name};
421: }
422: }
423: }
424: }
425: }
426: }
427: }
428: $env{'form.currcat_0'} = $currcat;
429: $env{'form.catalog_maxdepth'} = $depth;
430:
431: my %possibles = (
432: backto => 1,
433: catalogfilter => 1,
434: catalog_maxdepth => 1,
435: courseid => 1,
436: coursenum => 1,
437: currcat_0 => 1,
438: numtitles => 1,
439: Year => 1,
440: Semester => 1,
441: Department => 1,
442: Number => 1,
443: showdom => 1,
444: sortby => 1,
445: showcounts => 1,
446: showdetails => 1,
447: showhidden => 1,
448: showselfenroll => 1,
449: state => 1,
450: uniquecode => 1,
451: wasactive => 1,
452: wasactiveon_day => 1,
453: wasactiveon_month => 1,
454: wasactiveon_year => 1,
455: withsubcats => 1,
456: );
457: my %currcats;
458: if ($env{'form.catalog_maxdepth'} > 0) {
459: for (my $i=1; $i<=$env{'form.catalog_maxdepth'}; $i++) {
460: $currcats{'currcat_'.$i} = 1;
461: $possibles{'currcat_'.$i} = 1;
462: }
463: }
464:
465: foreach my $key (sort(keys(%env))) {
466: if ($key =~ /^form\.(.+)$/) {
467: unless ($possibles{$1}) {
468: delete($env{$key});
469: }
470: }
471: }
472: if (exists($env{'form.backto'})) {
473: unless ($env{'form.backto'} eq 'coursecatalog') {
474: delete($env{'form.backto'});
475: }
476: }
477: if (exists($env{'form.catalogfilter'})) {
478: unless (($env{'form.catalogfilter'} eq &mt('Display courses')) ||
479: ($env{'form.catalogfilter'} eq &mt('Display communities')) ||
480: ($env{'form.catalogfilter'} eq &mt('Display placement tests'))) {
481: delete($env{'form.catalogfilter'});
482: }
483: }
484: if (exists($env{'form.courseid'})) {
485: if ($env{'form.courseid'} ne '') {
486: unless ($env{'form.courseid'} =~ /^\Q$codedom\E_$LONCAPA::match_courseid$/) {
487: $env{'form.courseid'} = '';
488: }
489: }
490: }
491: if (exists($env{'form.coursenum'})) {
492: unless ($env{'form.coursenum'} =~ /^$LONCAPA::match_courseid$/) {
493: $env{'form.coursenum'} = '';
494: }
495: }
496: if (exists($env{'form.currcat_0'})) {
497: unless ($env{'form.currcat_0'} =~ /^(instcode|communities|placement)\Q::0\E$/) {
498: if ($env{'form.currcat_0'} =~ /^.+\Q::0\E$/) {
499: if (ref($crscatsref) eq 'HASH') {
500: unless (exists($crscatsref->{$env{'form.currcat_0'}})) {
501: delete($env{'form.currcat_0'});
502: }
503: } else {
504: delete($env{'form.currcat_0'});
505: }
506: } else {
507: delete($env{'form.currcat_0'});
508: }
509: }
510: }
511: if (exists($env{'form.numtitles'})) {
512: unless ($env{'form.numtitles'} =~ /^\d+$/) {
513: delete($env{'form.numtitles'});
514: }
515: }
516: my ($gotcodes,%possvals);
517: foreach my $item ('Year','Semester','Department','Number') {
518: if (exists($env{'form.'.$item})) {
519: unless ($env{'form.'.$item} eq '0') {
520: unless ($gotcodes) {
521: $gotcodes = &get_instcode_allowable($codedom,\%possvals);
522: }
523: if (ref($possvals{$item}) eq 'HASH') {
524: unless (exists($possvals{$item}{$env{'form.'.$item}})) {
525: delete($env{'form.'.$item});
526: }
527: } else {
528: delete($env{'form.'.$item});
529: }
530: }
531: }
532: }
533: if (exists($env{'form.showdom'})) {
534: unless ($env{'form.showdom'} =~ /^$LONCAPA::match_domain$/) {
535: delete($env{'form.showdom'});
536: }
537: }
538: if (exists($env{'form.sortby'})) {
539: unless ($env{'form.sortby'} =~ /^(title|code|owner|cats)$/) {
540: delete($env{'form.sortby'});
541: }
542: }
543: if (exists($env{'form.showcounts'})) {
544: if (ref($env{'form.showcounts'}) eq 'ARRAY') {
545: foreach my $item (@{$env{'form.showcounts'}}) {
546: unless ($item =~ /^(Active|Future|Previous)$/) {
547: delete($env{'form.showcounts'});
548: last;
549: }
550: }
551: } else {
552: unless ($env{'form.showcounts'} =~ /^(Active|Future|Previous)$/) {
553: delete($env{'form.showcounts'});
554: }
555: }
556: }
557: foreach my $item ('showhidden','showdetails','showselfenroll','withsubcats') {
558: if (exists($env{'form.'.$item})) {
559: unless ($env{'form.'.$item} eq '1') {
560: delete($env{'form.'.$item});
561: }
562: }
563: }
564: if (exists($env{'form.state'})) {
565: unless ($env{'form.state'} eq 'listing') {
566: delete($env{'form.state'});
567: }
568: }
569: if (exists($env{'form.uniquecode'})) {
570: unless ($env{'form.uniquecode'} =~ /^\w{6}$/) {
571: delete($env{'form.uniquecode'});
572: }
573: }
574: if (exists($env{'form.wasactive'})) {
575: unless (($env{'form.wasactive'} eq 'accessend') || ($env{'form.wasactive'} eq 'enrollend')) {
576: delete($env{'form.wasactive'});
577: }
578: }
579: if (exists($env{'form.wasactiveon_day'})) {
580: my $tmpday = $env{'form.wasactiveon_day'};
581: unless (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
582: delete($env{'form.wasactiveon_day'});
583: }
584: }
585: if (exists($env{'form.wasactiveon_month'})) {
586: my $tmpmonth = $env{'form.wasactiveon_month'};
587: unless (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
588: delete($env{'form.wasactiveon_month'});
589: }
590: }
591: if (exists($env{'form.wasactiveon_year'})) {
592: my $tmpyear = $env{'form.wasactiveon_year'};
593: unless (($tmpyear =~ /^\d+$/) && ($tmpyear >= 1970)) {
594: delete($env{'form.wasactiveon_year'});
595: }
596: }
597: if (keys(%currcats)) {
598: foreach my $key (keys(%currcats)) {
599: if ($env{'form.'.$key} eq '') {
600: delete($env{'form.'.$key});
601: } elsif (ref($crscatsref) eq 'HASH') {
602: unless (exists($crscatsref->{$env{'form.'.$key}})) {
603: delete($env{'form.'.$key});
604: }
605: } else {
606: delete($env{'form.'.$key});
607: }
608: }
609: }
610: return;
611: }
612:
613: sub get_instcode_allowable {
614: my ($codedom,$possvalref) = @_;
615: return 1 unless (ref($possvalref) eq 'HASH');
616: my $instcats = &Apache::lonnet::get_dom_instcats($codedom);
617: if (ref($instcats) eq 'HASH') {
618: if ((ref($instcats->{'codetitles'}) eq 'ARRAY') && (ref($instcats->{'codes'}) eq 'HASH')) {
619: my %codes = %{$instcats->{'codes'}};
620: my @codetitles = @{$instcats->{'codetitles'}};
621: my @standardnames = &Apache::loncommon::get_standard_codeitems();
622: my %local_to_standard;
623: for (my $i=0; $i<@codetitles; $i++) {
624: $local_to_standard{$codetitles[$i]} = $standardnames[$i];
625: $possvalref->{$standardnames[$i]} = {};
626: }
627: foreach my $cid (sort(keys(%codes))) {
628: if (ref($codes{$cid}) eq 'HASH') {
629: foreach my $item (keys(%{$codes{$cid}})) {
630: $possvalref->{$local_to_standard{$item}}{$codes{$cid}{$item}} = 1;
631: }
632: }
633: }
634: }
635: }
636: return 1;
637: }
638:
639: sub course_details {
640: my ($r,$codedom,$formname,$domdesc,$trails,$allitems,$codetitles) = @_;
641: my $output;
642: my %add_entries = (topmargin => "0",
643: marginheight => "0",);
644: my $js = '<script type="text/javascript">'."\n".
645: &courselink_javascript().'</script>'."\n";
646: my $start_page =
647: &Apache::loncommon::start_page('Course/Community Catalog',$js,
648: {'add_entries' => \%add_entries, });
649: $r->print($start_page);
650: if ($env{'form.numtitles'} > 0) {
651: &Apache::lonhtmlcommon::add_breadcrumb
652: ({href=>"/adm/coursecatalog",
653: text=>"Course/Community Catalog"});
654: }
655: my $brtextone = 'Course listing';
656: my $brtexttwo = 'Course details';
657: if ($env{'form.currcat_0'} eq 'communities::0') {
658: $brtextone = 'Community listing';
659: $brtexttwo = 'Community details';
660: }
661: &Apache::lonhtmlcommon::add_breadcrumb
662: ({href=>"javascript:document.$formname.submit()",
663: text=>$brtextone},
664: {text=>$brtexttwo});
665: $r->print(
666: &Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog').
667: '<h2>'.
668: (($env{'form.currcat_0'} eq 'communities::0') ?
669: &mt('Detailed community information:') :
670: &mt('Detailed course information:')).
671: '</h2>'.
672: &print_course_listing($codedom,undef,$trails,$allitems,undef,$codetitles).
673: '<br />'.
674: '<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
675: &Apache::lonhtmlcommon::actionbox([
676: '<a href = "javascript:document.coursecatalog.submit()">'.
677: (($env{'form.currcat_0'} eq 'communities::0') ?
678: &mt('Back to community listing') : &mt('Back to course listing')).
679: '</a>'
680: ]).
681: &Apache::lonhtmlcommon::echo_form_input(['coursenum','catalogfilter',
682: 'showdetails','courseid']).
683: '</form>');
684: return;
685: }
686:
687: sub coursesearch {
688: my ($codedom,$domdesc,$uniquecode) = @_;
689: my %lt = &Apache::lonlocal::texthash (
690: crlk => 'Course look-up',
691: code => 'Code',
692: ifyo => 'Enter the course code (six letters and numbers)',
693: srch => 'Find course',
694: );
695: return <<"END";
696: <h3>$lt{'crlk'} ($domdesc)</h3>
697: $lt{'ifyo'}
698: <form name="searchbycode" method="post" action="">
699: <span class="LC_nobreak">
700: <input type="text" value="$uniquecode" size="6" name="uniquecode" />
701: <br />
702: <input type="submit" value="$lt{'srch'}" name="srch" /></span>
703: </form>
704: END
705: }
706:
707: sub courselink_javascript {
708: return <<"END";
709:
710: function ToSyllabus(cdom,cnum) {
711: if (cdom == '' || cdom == null) {
712: return;
713: }
714: if (cnum == '' || cnum == null) {
715: return;
716: }
717: document.linklaunch.action = "/public/"+cdom+"/"+cnum+"/syllabus";
718: document.linklaunch.submit();
719: }
720:
721: function ToSelfenroll(courseid) {
722: if (courseid == '') {
723: return;
724: }
725: document.linklaunch.action = "/adm/selfenroll";
726: document.linklaunch.courseid.value = courseid;
727: document.linklaunch.submit();
728: }
729:
730: END
731: }
732:
733: sub instcode_course_selector {
734: my ($r,$codedom,$formname,$domdesc,$catlinks,$catjs,$codetitles,$cattype,$canviewall) = @_;
735: my %cat_titles = ();
736: my %cat_order = ();
737: my %cat_items = ();
738: my %add_entries = (topmargin => "0",
739: marginheight => "0",);
740: my ($jscript,$totcodes,$numtitles,$lasttitle) =
741: &Apache::courseclassifier::instcode_selectors_data($codedom,$formname,
742: \%cat_items,$codetitles,\%cat_titles,\%cat_order);
743: my $js = '<script type="text/javascript">'."\n".
744: '// <![CDATA['."\n".
745: "$jscript\n$catjs\n".
746: '// ]]>'."\n".
747: '</script>';
748: if ($totcodes) {
749: if (($env{'form.state'} eq 'listing') && ($numtitles > 0)) {
750: $add_entries{'onload'} = 'setElements();';
751: }
752: if (&user_is_dc($codedom) || $canviewall) {
753: $add_entries{'onload'} .= ' toggleStatuses();toggleWasActive();'
754: }
755: &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles,$cattype);
756: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
757: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
758: '<input type="hidden" name="catalog_maxdepth" value="'.$cat_maxdepth.'" />'."\n".
759: '<input type="hidden" name="showdom" value="'.$env{'form.showdom'}.'" />'."\n".
760: '<input type="hidden" name="currcat_0" value="instcode::0" />'.
761: &additional_filters($codedom,undef,$canviewall));
762: if ($numtitles > 0) {
763: $r->print('<b>'.&mt('Choose which course(s) to list.').'</b><br />'.
764: &Apache::courseclassifier::build_instcode_selectors($numtitles,
765: $lasttitle,\%cat_items,$codetitles,\%cat_titles,\%cat_order));
766: }
767: $r->print('<input type="hidden" name="coursenum" value="" />'."\n".
768: '<input type="hidden" name="sortby" value="" />'."\n".
769: '<input type="hidden" name="state" value="listing" />'."\n".
770: '<input type="submit" name="catalogfilter" value="'.
771: &mt('Display courses').'" />'.
772: '<input type="hidden" name="numtitles" value="'.$numtitles.
773: '" /></form><br /><br />');
774: } else {
775: $js = '<script type="text/javascript">'."\n".
776: '// <![CDATA['."\n".
777: "$catjs\n".
778: '// ]]>'."\n".
779: '</script>';
780: &cat_header($r,$codedom,$js,\%add_entries,$catlinks,$numtitles,$cattype);
781: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
782: $r->print('<form name="'.$formname.'" method="post" action="/adm/coursecatalog">'.
783: '<input type="hidden" name="catalog_maxdepth" value="'.$cat_maxdepth.'" />'.
784: '<input type="hidden" name="showdom" value="'.$env{'form.showdom'}.'" />'.
785: '<input type="hidden" name="currcat_0" value="instcode::0" />');
786: $r->print('<br />'.&mt('No official courses to display for [_1].',$domdesc).'</form>');
787: }
788: return $numtitles;
789: }
790:
791: sub cat_header {
792: my ($r,$codedom,$js,$add_entries,$catlinks,$numtitles,$cattype) = @_;
793: my $start_page =
794: &Apache::loncommon::start_page('Course/Community Catalog',$js,
795: { 'add_entries' => $add_entries, });
796: $r->print($start_page);
797: my $brtext = 'Course listing';
798: if ($env{'form.currcat_0'} eq 'communities::0') {
799: $brtext = 'Community listing';
800: }
801: if ($env{'form.state'} eq 'listing') {
802: if ($numtitles > 0) {
803: &Apache::lonhtmlcommon::add_breadcrumb
804: ({href=>"/adm/coursecatalog",
805: text=>"Course/Community Catalog"},
806: {text=>$brtext});
807: } else {
808: &Apache::lonhtmlcommon::add_breadcrumb
809: ({text=>$brtext});
810: }
811: } else {
812: &Apache::lonhtmlcommon::add_breadcrumb
813: ({href=>"/adm/coursecatalog",
814: text=>"Course/Community Catalog"});
815: }
816: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course/Community Catalog'));
817: if ($cattype eq 'std') {
818: my $onchange = 'this.form.submit()';
819: $r->print('<form name="coursecatdom" method="post" action="/adm/coursecatalog">'.
820: '<table border="0"><tr><td><b>'.&mt('Domain:').'</b></td><td>'.
821: &Apache::loncommon::select_dom_form($codedom,'showdom','',1,$onchange));
822: if (!$onchange) {
823: $r->print(' <input type="submit" name="godom" value="'.&mt('Change').'" />');
824: }
825: $r->print('</td></tr></table></form>');
826: }
827: $r->print('<form name="coursecats" method="post" action="/adm/coursecatalog"'.
828: ' onsubmit="return check_selected();">'.
829: '<table border="0"><tr>'.$catlinks.'</tr></table></form>');
830: return;
831: }
832:
833: sub category_breadcrumbs {
834: my ($dom,@cats) = @_;
835: my $crumbsymbol = ' ▶ ';
836: my ($currdepth,$deeper) = &get_depth_values();
837: my $currcat_str =
838: '<input type="hidden" name="catalog_maxdepth" value="'.$deeper.'" />'.
839: '<input type="hidden" name="showdom" value="'.$dom.'" />';
840: my $catlinks = '<td valign="top"><b>'.&mt('Catalog:').'</b></td><td><table><tr><td>';
841: my $has_subcats;
842: my $selitem;
843: if (ref($cats[0]) eq 'ARRAY') {
844: if (@{$cats[0]} == 0) {
845: $catlinks .= &mt('No categories defined in this domain');
846: } elsif (@{$cats[0]} == 1) {
847: if ($cats[0][0] eq 'instcode') {
848: $catlinks .= &mt('Official courses (with institutional codes)');
849: $env{'form.currcat_0'} = 'instcode::0';
850: } elsif ($cats[0][0] eq 'communities') {
851: $catlinks .= &mt('Communities');
852: $env{'form.currcat_0'} = 'communities::0';
853: } else {
854: my $name = $cats[0][0];
855: my $item = &escape($name).'::0';
856: $catlinks .= $name;
857: $env{'form.currcat_0'} = $item;
858: }
859: $currcat_str .= '<input type="hidden" name="currcat_0" value="'.$env{'form.currcat_0'}.'" />';
860: } else {
861: $catlinks .= &main_category_selector(@cats);
862: if (($env{'form.currcat_0'} ne '') &&
863: ($env{'form.currcat_0'} ne 'instcode::0')) {
864: $catlinks .= $crumbsymbol;
865: }
866: }
867: } else {
868: $catlinks .= &mt('Official courses (with institutional codes)');
869: $env{'form.currcat_0'} = 'instcode::0';
870: $currcat_str .= '<input type="hidden" name="currcat_0" value="'.$env{'form.currcat_0'}.'" />';
871: }
872: if ($deeper) {
873: for (my $i=1; $i<=$deeper; $i++) {
874: my $shallower = $i-1;
875: next if ($shallower == 0);
876: my ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$shallower});
877: if ($cat ne '') {
878: $catlinks .= '<td valign="top">'.
879: '<select name="currcat_'.$shallower.'" onchange="'.
880: 'setCatDepth('."'$shallower'".');this.form.submit();">';
881: if (ref($cats[$shallower]{$container}) eq 'ARRAY') {
882: $catlinks .= '<option value="">'.&mt('De-select').'</option>';
883: for (my $j=0; $j<@{$cats[$shallower]{$container}}; $j++) {
884: my $name = $cats[$shallower]{$container}[$j];
885: my $item = &escape($name).':'.&escape($container).':'.$shallower;
886: my $selected = '';
887: if ($item eq $env{'form.currcat_'.$shallower}) {
888: $selected = ' selected="selected"';
889: }
890: $catlinks .=
891: '<option value="'.$item.'"'.$selected.'>'.$name.'</option>';
892: }
893: }
894: $catlinks .= '</select>';
895: }
896: unless ($i == $deeper) {
897: $catlinks .= $crumbsymbol;
898: }
899: }
900: my ($cat,$container,$depth);
901: if ($env{'form.currcat_'.$currdepth} eq '') {
902: my $shallower = $currdepth - 1;
903: ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$shallower});
904: } else {
905: ($cat,$container,$depth) = map { &unescape($_); } split(/:/,$env{'form.currcat_'.$currdepth});
906: }
907: my $deeperlevel = $depth +1;
908: if (ref($cats[$deeperlevel]{$cat}) eq 'ARRAY') {
909: $has_subcats = 1;
910: my $buttontext = &mt('Show subcategories');
911: my $selitem = 'currcat_'.$deeperlevel;
912: $catlinks .= ' <select name="'.$selitem.'" onchange="this.form.submit()">';
913: if (@{$cats[$deeperlevel]{$cat}}) {
914: $catlinks .= '<option value="" selected="selected">'.
915: &mt('Subcategory ...').'</option>';
916: }
917: for (my $k=0; $k<@{$cats[$deeperlevel]{$cat}}; $k++) {
918: my $name = $cats[$deeperlevel]{$cat}[$k];
919: my $item = &escape($name).':'.&escape($cat).':'.$deeperlevel;
920: $catlinks .= '<option value="'.$item.'">'.$name.'</option>'."\n";
921: }
922: $catlinks .= '</select>'."\n";
923: } elsif ($cat ne 'instcode') {
924: $catlinks .= ' '.&mt('(No subcategories)');
925: }
926: } else {
927: $selitem = 'currcat_0';
928: }
929: $catlinks .= $currcat_str.'</td></tr></table></td>';
930: return ($catlinks,$has_subcats,$selitem);
931: }
932:
933: sub main_category_selector {
934: my (@cats) = @_;
935: my $maincatlinks = '<select name="currcat_0" onchange="setCatDepth('."'0'".');this.form.submit();">'."\n";
936: if (ref($cats[0]) eq 'ARRAY') {
937: if (@{$cats[0]} > 1) {
938: my $selected = '';
939: if ($env{'form.currcat_0'} eq '') {
940: $selected = ' selected="selected"';
941: }
942: $maincatlinks .=
943: '<option value=""'.$selected.'>'.&mt('Select').'</option>'."\n";
944: }
945: for (my $i=0; $i<@{$cats[0]}; $i++) {
946: my $name = $cats[0][$i];
947: my $item = &escape($name).'::0';
948: my $selected;
949: if ($env{'form.currcat_0'} eq $item) {
950: $selected = ' selected="selected"';
951: }
952: $maincatlinks .= '<option value="'.$item.'"'.$selected.'>';
953: if ($name eq 'instcode') {
954: $maincatlinks .= &mt('Official courses (with institutional codes)');
955: } elsif ($name eq 'communities') {
956: $maincatlinks .= &mt('Communities');
957: } else {
958: $maincatlinks .= $name;
959: }
960: $maincatlinks .= '</option>'."\n";
961: }
962: $maincatlinks .= '</select>'."\n";
963: }
964: return $maincatlinks;
965: }
966:
967: sub get_depth_values {
968: my $currdepth = 0;
969: my $deeper = 0;
970: if ($env{'form.catalog_maxdepth'} ne '') {
971: $currdepth = $env{'form.catalog_maxdepth'};
972: if ($env{'form.currcat_'.$currdepth} eq '') {
973: $deeper = $currdepth;
974: } else {
975: $deeper = $currdepth + 1;
976: }
977: }
978: return ($currdepth,$deeper);
979: }
980:
981: sub additional_filters {
982: my ($codedom,$has_subcats,$canviewall) = @_;
983: my $is_dc = &user_is_dc($codedom);
984: my $output = '<div class="LC_left_float">';
985: if ($is_dc || $canviewall) {
986: $output .= '<fieldset><legend>'.&mt('Options').'</legend>';
987: }
988: $output .= '<table><tr><td valign="top">';
989: if (($env{'form.currcat_0'} ne 'instcode::0') &&
990: ($env{'form.currcat_0'} ne '') && ($has_subcats)) {
991: my $include_subcat_status;
992: if ($env{'form.withsubcats'}) {
993: $include_subcat_status = 'checked="checked" ';
994: }
995: my $counter = $env{'form.catalog_maxdepth'};
996: if ($counter > 0) {
997: if ($env{'form.state'} eq 'listing') {
998: $counter --;
999: } elsif ($env{'form.currcat_'.$counter} eq '') {
1000: $counter --;
1001: }
1002: }
1003: my ($catname) = split(/:/,$env{'form.currcat_'.$counter});
1004: if ($catname ne '') {
1005: $output .= '<span class="LC_nobreak"><label>'.
1006: '<input type="checkbox" name="withsubcats" value="1" '.
1007: $include_subcat_status.'/>'.
1008: &mt('Include subcategories within "[_1]"',
1009: &unescape($catname)).'</label></span><br />';
1010: }
1011: }
1012: my $show_selfenroll_status;
1013: if ($env{'form.showselfenroll'}) {
1014: $show_selfenroll_status = 'checked="checked" ';
1015: }
1016: my $selfenroll_text;
1017: if ($env{'form.currcat_0'} eq 'communities::0') {
1018: $selfenroll_text = &mt('Only show communities which currently allow self-enrollment (or will allow it in the future)');
1019: } else {
1020: $selfenroll_text = &mt('Only show courses which currently allow self-enrollment (or will allow it in the future)');
1021: }
1022: $output .= '<span class="LC_nobreak">'.
1023: '<label><input type="checkbox" name="showselfenroll" value="1" '.
1024: $show_selfenroll_status.'/>'.$selfenroll_text.
1025: '</label></span><br />';
1026: if ($is_dc || $canviewall) {
1027: my ($titlesref,$orderref) = &get_statustitles('filters');
1028: my $showdetails_status;
1029: if ($env{'form.showdetails'}) {
1030: $showdetails_status = 'checked="checked" ';
1031: }
1032: my $showhidden_status;
1033: if ($env{'form.showhidden'}) {
1034: $showhidden_status = 'checked="checked" ';
1035: }
1036: my @currstatuses = &Apache::loncommon::get_env_multiple('form.showcounts');
1037: my ($details_text,$hidden_text,$statusdisplay,$cellborder);
1038: my $wasactivedisplay = 'none';
1039: if ($env{'form.showdetails'}) {
1040: $statusdisplay = 'block';
1041: $cellborder = 'border-left: 1px solid;';
1042: if (grep(/^Previous$/,@currstatuses)) {
1043: $wasactivedisplay = 'block';
1044: }
1045: } else {
1046: $statusdisplay = 'none';
1047: $cellborder = 'border-left: 0px';
1048: }
1049: if ($env{'form.currcat_0'} eq 'communities::0') {
1050: $details_text = &mt('Show full details for each community (domain staff only)');
1051: $hidden_text = &mt('Include communities set to be hidden from catalog (domain staff only)');
1052: } else {
1053: $details_text = &mt('Show full details for each course (domain staff only)');
1054: $hidden_text = &mt('Include courses set to be hidden from catalog (domain staff only)');
1055: }
1056: if ($is_dc) {
1057: $output .= '<span class="LC_nobreak">'.
1058: '<label><input type="checkbox" name="showhidden" value="1" '.
1059: $showhidden_status.'/>'.$hidden_text.
1060: '</label></span><br />'."\n";
1061: }
1062: $output .= '<span class="LC_nobreak">'.
1063: '<label><input type="checkbox" name="showdetails" value="1" '.
1064: $showdetails_status.'onclick="toggleStatuses();" />'.
1065: $details_text.'</label></span></td>'."\n".
1066: '<td id="statuscell" valign="top" style="'.$cellborder.'">'.
1067: '<div id="statuschoice" style="display:'.$statusdisplay.'">';
1068: if (ref($orderref) eq 'ARRAY') {
1069: if (@{$orderref} > 0) {
1070: foreach my $type (@{$orderref}) {
1071: my $checked;
1072: if (grep(/^\Q$type\E$/,@currstatuses)) {
1073: $checked = ' checked="checked"';
1074: }
1075: my $title;
1076: if (ref($titlesref) eq 'HASH') {
1077: $title = $titlesref->{$type};
1078: }
1079: unless ($title) {
1080: $title = &mt($type);
1081: }
1082: my $onclick;
1083: if ($type eq 'Previous') {
1084: $onclick = ' onclick="toggleWasActive();"';
1085: }
1086: $output .= '<span class="LC_nobreak">'.
1087: '<label><input type="checkbox" id="counts_'.$type.'"'.
1088: ' name="showcounts" value="'.$type.'"'.$checked.$onclick.
1089: ' />'.$title.'</label></span>';
1090: if ($type eq 'Previous') {
1091: my %milestonetext = &Apache::lonlocal::texthash (
1092: accessend => 'immediately prior to default end access date',
1093: enrollend => 'immediately prior to end date for auto-enrollment',
1094: date => 'immediately prior to specific date:',
1095: );
1096: my @statuses = &Apache::loncommon::get_env_multiple('form.showcounts');
1097: $output .= '<span id="choosewasacctext" class="LC_nobreak">';
1098: if ($checked) {
1099: $output .= &get_wasactive_text();
1100: }
1101: $output .= '</span>'.
1102: '<div id="choosewasactive" style="display:'.$wasactivedisplay.'">'.
1103: '<table>';
1104: my @milestones = ('accessend');
1105: if (&Apache::lonnet::auto_run(undef,$codedom)) {
1106: push(@milestones,'enrollend');
1107: }
1108: push(@milestones,'date');
1109: foreach my $item (@milestones) {
1110: my $checked;
1111: if ($env{'form.state'} eq 'listing') {
1112: if ($env{'form.wasactive'} eq $item) {
1113: $checked = ' checked="checked"';
1114: }
1115: } elsif ($item eq 'accessend') {
1116: $checked = ' checked="checked"';
1117: }
1118: $output .=
1119: '<tr><td width="10"> </td><td>'.
1120: '<span class="LC_nobreak"><label>'.
1121: '<input type="radio" value="'.$item.'" name="wasactive"'.$checked.' />'.
1122: $milestonetext{$item}.'</label></span>';
1123: if ($item eq 'date') {
1124: my $wasactiveon;
1125: if (grep(/^Previous$/,@currstatuses)) {
1126: $wasactiveon =
1127: &Apache::lonhtmlcommon::get_date_from_form('wasactiveon');
1128: } else {
1129: $wasactiveon = 'now';
1130: }
1131: $output .= ' '.
1132: &Apache::lonhtmlcommon::date_setter('coursecatalog',
1133: 'wasactiveon',
1134: $wasactiveon,
1135: '','','',1,'',
1136: '','',1);
1137: }
1138: $output .= '</td></tr>';
1139: }
1140: $output .= '</table></div>';
1141: }
1142: $output .= '<br />';
1143: }
1144: }
1145: }
1146: $output .= '</div></td>';
1147: } else {
1148: $output .= '</td>';
1149: }
1150: $output .= '</tr></table></fieldset></div>'.
1151: '<div style="clear:both;margin:0;"></div>';
1152: return $output;
1153: }
1154:
1155: sub user_is_dc {
1156: my ($codedom) = @_;
1157: if (exists($env{'user.role.dc./'.$codedom.'/'})) {
1158: my $livedc = 1;
1159: my $now = time;
1160: my ($start,$end)=split(/\./,$env{'user.role.dc./'.$codedom.'/'});
1161: if ($start && $start>$now) { $livedc = 0; }
1162: if ($end && $end <$now) { $livedc = 0; }
1163: return $livedc;
1164: }
1165: return;
1166: }
1167:
1168: sub canview_all {
1169: my ($knownuser,$codedom) = @_;
1170: my $canviewall = 0;
1171: my $page = 'coursecatalog';
1172: if (&LONCAPA::lonauthcgi::can_view($page)) {
1173: $canviewall = 1;
1174: } elsif (&LONCAPA::lonauthcgi::check_ipbased_access($page)) {
1175: $canviewall= 1;
1176: } elsif (($knownuser) && ($codedom ne '')) {
1177: if (&Apache::lonnet::allowed('dcd',$codedom)) {
1178: $canviewall = 1;
1179: }
1180: }
1181: return $canviewall;
1182: }
1183:
1184: sub get_statustitles {
1185: my ($caller) = @_;
1186: my @status_order = ('Active','Future','Previous');
1187: my %status_title;
1188: if ($caller eq 'filters') {
1189: %status_title = &Apache::lonlocal::texthash(
1190: Previous => 'Show count for past access',
1191: Active => 'Show count for current student access',
1192: Future => 'Show count for future student access',
1193: );
1194: if ($env{'form.currcat_0'} eq 'communities::0') {
1195: $status_title{'Active'} = 'Show count for current member access';
1196: $status_title{'Future'} = 'Show count for future member access';
1197: }
1198: } else {
1199: %status_title = &Apache::lonlocal::texthash(
1200: Previous => 'Previous access',
1201: Active => 'Current access',
1202: Future => 'Future access',
1203: );
1204: }
1205: return (\%status_title,\@status_order);
1206: }
1207:
1208: sub get_wasactive_text {
1209: my $wasacctext = ' -- ';
1210: if ($env{'form.currcat_0'} eq 'communities::0') {
1211: $wasacctext .= &mt('where member access status was current ...');
1212: } else {
1213: $wasacctext .= &mt('where student access status was current ...');
1214: }
1215: return $wasacctext;
1216: }
1217:
1218: sub search_official_courselist {
1219: my ($domain,$numtitles,$codetitles) = @_;
1220: my $instcode = &Apache::courseclassifier::instcode_search_str($domain,$numtitles,$codetitles);
1221: my $showhidden;
1222: if (&user_is_dc($domain)) {
1223: $showhidden = $env{'form.showhidden'};
1224: }
1225: my %courses =
1226: &Apache::lonnet::courseiddump($domain,'.',1,$instcode,'.','.',undef,undef,
1227: 'Course',1,$env{'form.showselfenroll'},undef,
1228: $showhidden,'coursecatalog');
1229: return %courses;
1230: }
1231:
1232: sub search_courselist {
1233: my ($domain,$subcats) = @_;
1234: my $cat_maxdepth = $env{'form.catalog_maxdepth'};
1235: my $filter = $env{'form.currcat_'.$cat_maxdepth};
1236: if (($filter eq '') && ($cat_maxdepth > 0)) {
1237: my $shallower = $cat_maxdepth - 1;
1238: $filter = $env{'form.currcat_'.$shallower};
1239: }
1240: my %courses;
1241: my $filterstr;
1242: if ($filter ne '') {
1243: if ($env{'form.withsubcats'}) {
1244: if (ref($subcats) eq 'HASH') {
1245: if (ref($subcats->{$filter}) eq 'ARRAY') {
1246: $filterstr = join('&',@{$subcats->{$filter}});
1247: if ($filterstr ne '') {
1248: $filterstr = $filter.'&'.$filterstr;
1249: }
1250: } else {
1251: $filterstr = $filter;
1252: }
1253: } else {
1254: $filterstr = $filter;
1255: }
1256: } else {
1257: $filterstr = $filter;
1258: }
1259: my ($showhidden,$typefilter);
1260: if (&user_is_dc($domain)) {
1261: $showhidden = $env{'form.showhidden'};
1262: }
1263: if ($env{'form.currcat_0'} eq 'communities::0') {
1264: $typefilter = 'Community';
1265: } else {
1266: $typefilter = '.';
1267: }
1268: %courses =
1269: &Apache::lonnet::courseiddump($domain,'.',1,'.','.','.',undef,undef,
1270: $typefilter,1,$env{'form.showselfenroll'},
1271: $filterstr,$showhidden,'coursecatalog');
1272: }
1273: return %courses;
1274: }
1275:
1276: sub print_course_listing {
1277: my ($domain,$numtitles,$trails,$allitems,$subcats,$codetitles,$canviewall) = @_;
1278: my $output;
1279: my %courses;
1280: my $knownuser = &user_is_known();
1281: my $canviewall = &canview_all();
1282: my $details = $env{'form.coursenum'};
1283: if (&user_is_dc($domain) || $canviewall) {
1284: if ($env{'form.showdetails'}) {
1285: $details = 1;
1286: }
1287: }
1288: if ($env{'form.coursenum'} ne '') {
1289: %courses = &Apache::lonnet::courseiddump($domain,'.',1,'.','.',
1290: $env{'form.coursenum'},
1291: undef,undef,'.',1);
1292: if (keys(%courses) == 0) {
1293: $output = '<p class="LC_error">';
1294: if ($env{'form.currcat_0'} eq 'communities::0') {
1295: $output .= &mt('The courseID provided does not match a community in this domain.');
1296: } else {
1297: $output .= &mt('The courseID provided does not match a course in this domain.');
1298: }
1299: $output .= '</p>';
1300: return $output;
1301: }
1302: } else {
1303: if ($env{'form.currcat_0'} eq 'instcode::0') {
1304: %courses = &search_official_courselist($domain,$numtitles,$codetitles);
1305: } else {
1306: %courses = &search_courselist($domain,$subcats);
1307: }
1308: if (keys(%courses) == 0) {
1309: $output = '<p class="LC_info">';
1310: if ($env{'form.currcat_0'} eq 'communities::0') {
1311: $output .= &mt('No communities match the criteria you selected.');
1312: } else {
1313: $output .= &mt('No courses match the criteria you selected.');
1314: }
1315: $output .= '</p>';
1316: return $output;
1317: }
1318: if (($knownuser) && (!$env{'form.showdetails'}) && (!&user_is_dc($domain)) && (!$canviewall)) {
1319: $output = '<b>'.&mt('Note for students:').'</b> '
1320: .&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.')
1321: .'<br /><br />';
1322: }
1323: }
1324: my $now = time;
1325: $output .= &construct_data_table($knownuser,$domain,\%courses,$details,undef,
1326: $now,$trails,$allitems,$canviewall);
1327: $output .= "\n".'<form name="linklaunch" method="post" action="">'.
1328: '<input type="hidden" name="backto" value="coursecatalog" />'.
1329: '<input type="hidden" name="courseid" value="" />'.
1330: &Apache::lonhtmlcommon::echo_form_input(['catalogfilter','courseid']).'</form>';
1331: return $output;
1332: }
1333:
1334: sub construct_data_table {
1335: my ($knownuser,$domain,$courses,$details,$usersections,$now,$trails,$allitems,$canviewall) = @_;
1336: my %sortname;
1337: if (($details eq '') || ($env{'form.showdetails'})) {
1338: $sortname{'Code'} = 'code';
1339: $sortname{'Categories'} = 'cats';
1340: $sortname{'Title'} = 'title';
1341: $sortname{'Owner & Co-owner(s)'} = 'owner';
1342: }
1343: my $output = &Apache::loncommon::start_data_table().
1344: &Apache::loncommon::start_data_table_header_row();
1345: my @coltitles = ('Count');
1346: if ($env{'form.currcat_0'} eq 'instcode::0') {
1347: push(@coltitles,'Code');
1348: } else {
1349: push(@coltitles,'Categories');
1350: }
1351: push(@coltitles,('Sections','Crosslisted','Title','Owner & Co-owner(s)'));
1352: if (ref($usersections) eq 'HASH') {
1353: $coltitles[1] = 'Your Section';
1354: }
1355: foreach my $item (@coltitles) {
1356: $output .= '<th>';
1357: if (defined($sortname{$item})) {
1358: $output .= '<a href="javascript:changeSort('."'$sortname{$item}'".')">'.&mt($item).'</a>';
1359: } elsif ($item eq 'Count') {
1360: $output .= ' ';
1361: } else {
1362: $output .= &mt($item);
1363: }
1364: $output .= '</th>';
1365: }
1366: my (@fields,%fieldtitles,$wasactiveon);
1367: if ($knownuser || ($canviewall && $details)) {
1368: if ($details) {
1369: if ($env{'form.currcat_0'} eq 'communities::0') {
1370: $output .= '<th>'.&mt('Default Access Dates for Members').'</th>'.
1371: '<th>'.&mt('Member Counts').'</th>';
1372: } else {
1373: $output .=
1374: '<th>'.&mt('Default Access Dates for Students').'</th>'.
1375: '<th>'.&mt('Student Counts').'</th>'.
1376: '<th>'.&mt('Auto-enrollment of[_1]registered students','<br />').'</th>';
1377: }
1378: my ($titlesref,$orderref) = &get_statustitles();
1379: my @statuses;
1380: if (&user_is_dc($domain) || $canviewall) {
1381: @statuses = &Apache::loncommon::get_env_multiple('form.showcounts');
1382: if (grep(/^Previous$/,@statuses)) {
1383: if ($env{'form.wasactive'} eq 'date') {
1384: $wasactiveon =
1385: &Apache::lonhtmlcommon::get_date_from_form('wasactiveon');
1386: } else {
1387: $wasactiveon = $env{'form.wasactive'};
1388: }
1389: }
1390: if (ref($orderref) eq 'ARRAY') {
1391: foreach my $status (@{$orderref}) {
1392: if (grep(/^\Q$status\E$/,@statuses)) {
1393: push(@fields,$status);
1394: }
1395: }
1396: }
1397: } else {
1398: @fields = ('Active','Future');
1399: }
1400: foreach my $status (@fields) {
1401: my $title;
1402: if (ref($titlesref) eq 'HASH') {
1403: $title = $titlesref->{$status};
1404: }
1405: unless ($title) {
1406: $title = &mt($status);
1407: }
1408: $fieldtitles{$status} = $title;
1409: }
1410: } else {
1411: $output .= '<th>'.&mt('Details').'</th>';
1412: }
1413: }
1414: $output .= '<th>'.&mt('Self-enroll (if permitted)').'</th>';
1415: &Apache::loncommon::end_data_table_header_row();
1416: my (%numbers,%creditsum);
1417: my ($showcredits,$defofficial,$defunofficial,$deftextbook);
1418: my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
1419: unless ($env{'form.currcat_0'} eq 'communities::0') {
1420: if ($domdefaults{'officialcredits'} || $domdefaults{'unofficialcredits'} || $domdefaults{'textbookcredits'}) {
1421: $showcredits = 1;
1422: $defofficial = $domdefaults{'officialcredits'};
1423: $defunofficial = $domdefaults{'unofficialcredits'};
1424: $deftextbook = $domdefaults{'textbookcredits'};
1425: }
1426: }
1427: my %courseinfo = &build_courseinfo_hash($courses,$knownuser,$domain,$canviewall,$details,
1428: $usersections,\@fields,\%fieldtitles,
1429: $wasactiveon,\%numbers,\%creditsum,
1430: $showcredits,$defofficial,$defunofficial,$deftextbook);
1431: my %Sortby;
1432: foreach my $course (sort(keys(%{$courses}))) {
1433: if ($env{'form.sortby'} eq 'code') {
1434: push(@{$Sortby{$courseinfo{$course}{'code'}}},$course);
1435: } elsif ($env{'form.sortby'} eq 'cats') {
1436: push(@{$Sortby{$courseinfo{$course}{'categories'}}},$course);
1437: } elsif ($env{'form.sortby'} eq 'owner') {
1438: push(@{$Sortby{$courseinfo{$course}{'ownerlastnames'}}},$course);
1439: } else {
1440: my $clean_title = $courseinfo{$course}{'title'};
1441: $clean_title =~ s/\W+//g;
1442: if ($clean_title eq '') {
1443: $clean_title = $courseinfo{$course}{'title'};
1444: }
1445: push(@{$Sortby{$clean_title}},$course);
1446: }
1447: }
1448: my @sorted_courses;
1449: if (($env{'form.sortby'} eq 'code') || ($env{'form.sortby'} eq 'owner') ||
1450: ($env{'form.sortby'} eq 'cats')) {
1451: @sorted_courses = sort(keys(%Sortby));
1452: } else {
1453: @sorted_courses = sort { lc($a) cmp lc($b) } (keys(%Sortby));
1454: }
1455: my $count = 1;
1456: my $totalsec = 0;
1457: foreach my $item (@sorted_courses) {
1458: foreach my $course (@{$Sortby{$item}}) {
1459: $output.=&Apache::loncommon::start_data_table_row();
1460: $output.=&courseinfo_row($courseinfo{$course},$knownuser,$details,
1461: \$count,$now,$course,$trails,$allitems,\%numbers,$canviewall);
1462: $output.=&Apache::loncommon::end_data_table_row();
1463: }
1464: }
1465: if (($knownuser || $canviewall) && ($count > 1) && $env{'form.showdetails'}) {
1466: if (&user_is_dc($domain) || $canviewall) {
1467: my %lt = &Apache::lonlocal::texthash (
1468: 'Active' => 'Total current students',
1469: 'Future' => 'Total future students',
1470: 'Previous' => 'Total previous students',
1471: 'courses' => 'Total unique codes and courses without codes',
1472: 'sections' => 'Total sections',
1473: 'xlists' => 'Total cross-listings',
1474: );
1475: if ($showcredits) {
1476: $lt{'cr_Active'} = &mt('Total current student credit hours');
1477: $lt{'cr_Future'} = &mt('Total future student credit hours');
1478: $lt{'cr_Previous'} = &mt('Total previous student credit hours');
1479: }
1480: if ($env{'form.currcat_0'} eq 'communities::0') {
1481: $lt{'courses'} = &mt('Total communities');
1482: $lt{'Active'} = &mt('Total current members');
1483: $lt{'Future'} = &mt('Total future members');
1484: $lt{'Previous'} = &mt('Total previous members');
1485: }
1486: my $colspan = 8;
1487: if ($showcredits) {
1488: $colspan = 4;
1489: }
1490: $output .= '<tr class="LC_footer_row">'.
1491: '<td colspan="2"> </td>'.
1492: '<td colspan="'.$colspan.'">'.
1493: '<table border="0">';
1494: foreach my $item ('courses','sections','xlists') {
1495: $output .= '<tr>'.
1496: '<td>'.$lt{$item}.'</td><td> </td>'.
1497: '<td align="right">'.$numbers{$item}.'</td>'.
1498: '</tr>'."\n";
1499: }
1500: if (@fields > 0) {
1501: foreach my $status (@fields) {
1502: $output .= '<tr>'.
1503: '<td>'.$lt{$status}.'</td><td> </td>'.
1504: '<td align="right">'.$numbers{$status}.'</td>'.
1505: '</tr>'."\n";
1506: }
1507: }
1508: $output .= '</table></td>';
1509: if ($showcredits) {
1510: $output .= '<td colspan="'.$colspan.'" valign="bottom"><table>';
1511: foreach my $status (@fields) {
1512: $output .= '<tr>'.
1513: '<td>'.$lt{'cr_'.$status}.'</td><td> </td>'.
1514: '<td align="right">'.$creditsum{$status}.'</td></tr>';
1515: }
1516: $output .= '</table></td></tr>';
1517: }
1518: }
1519: }
1520: $output .= &Apache::loncommon::end_data_table();
1521: return $output;
1522: }
1523:
1524: sub build_courseinfo_hash {
1525: my ($courses,$knownuser,$domain,$canviewall,$details,$usersections,$fields,$fieldtitles,
1526: $wasactiveon,$numbers,$creditsum,$showcredits,$defofficial,$defunofficial) = @_;
1527: my %courseinfo;
1528: my $now = time;
1529: my $gettotals;
1530: if ((keys(%{$courses}) > 0) && (&user_is_dc($domain) || $canviewall) && ($details)) {
1531: $gettotals = 1;
1532: }
1533: my (%uniquecodes,$nocodes,$defcreds);
1534: foreach my $course (keys(%{$courses})) {
1535: my $descr;
1536: if (ref($courses->{$course}) eq 'HASH') {
1537: $descr = $courses->{$course}{'description'};
1538: }
1539: my $cleandesc=&HTML::Entities::encode($descr,'<>&"');
1540: $cleandesc=~s/'/\\'/g;
1541: $cleandesc =~ s/^\s+//;
1542: my ($cdom,$cnum)=split(/\_/,$course);
1543: my ($instcode,$singleowner,$ttype,$selfenroll_types,
1544: $selfenroll_start,$selfenroll_end,@owners,%ownernames,$categories);
1545: if (ref($courses->{$course}) eq 'HASH') {
1546: $descr = $courses->{$course}{'description'};
1547: $instcode = $courses->{$course}{'inst_code'};
1548: $singleowner = $courses->{$course}{'owner'};
1549: $ttype = $courses->{$course}{'type'};
1550: $selfenroll_types = $courses->{$course}{'selfenroll_types'};
1551: $selfenroll_start = $courses->{$course}{'selfenroll_start_date'};
1552: $selfenroll_end = $courses->{$course}{'selfenroll_end_date'};
1553: $categories = $courses->{$course}{'categories'};
1554: push(@owners,$singleowner);
1555: if ($courses->{$course}{'co-owners'} ne '') {
1556: foreach my $item (split(/,/,$courses->{$course}{'co-owners'})) {
1557: push(@owners,$item);
1558: }
1559: }
1560: }
1561: if ($instcode ne '') {
1562: $uniquecodes{$instcode} = 1;
1563: } else {
1564: $nocodes ++;
1565: }
1566: foreach my $owner (@owners) {
1567: my ($ownername,$ownerdom);
1568: if ($owner =~ /:/) {
1569: ($ownername,$ownerdom) = split(/:/,$owner);
1570: } else {
1571: $ownername = $owner;
1572: if ($owner ne '') {
1573: $ownerdom = $cdom;
1574: }
1575: }
1576: if ($ownername ne '' && $ownerdom ne '') {
1577: my %namehash=&Apache::loncommon::getnames($ownername,$ownerdom);
1578: $ownernames{$ownername.':'.$ownerdom} = \%namehash;
1579: }
1580: }
1581: $courseinfo{$course}{'cdom'} = $cdom;
1582: $courseinfo{$course}{'cnum'} = $cnum;
1583: $courseinfo{$course}{'code'} = $instcode;
1584: my @lastnames;
1585: foreach my $owner (keys(%ownernames)) {
1586: if (ref($ownernames{$owner}) eq 'HASH') {
1587: push(@lastnames,$ownernames{$owner}{'lastname'});
1588: }
1589: }
1590: $courseinfo{$course}{'ownerlastnames'} = join(', ',sort(@lastnames));
1591: $courseinfo{$course}{'title'} = $cleandesc;
1592: $courseinfo{$course}{'owner'} = $singleowner;
1593: $courseinfo{$course}{'selfenroll_types'} = $selfenroll_types;
1594: $courseinfo{$course}{'selfenroll_start'} = $selfenroll_start;
1595: $courseinfo{$course}{'selfenroll_end'} = $selfenroll_end;
1596: $courseinfo{$course}{'categories'} = $categories;
1597:
1598: my %coursehash = &Apache::lonnet::dump('environment',$cdom,$cnum);
1599: my @classids;
1600: my @crosslistings;
1601: my ($seclist,$numsec) =
1602: &identify_sections($coursehash{'internal.sectionnums'});
1603: $courseinfo{$course}{'seclist'} = $seclist;
1604: my ($xlist_items,$numxlist) =
1605: &identify_sections($coursehash{'internal.crosslistings'});
1606: if (ref($numbers) eq 'HASH') {
1607: $numbers->{'sections'} += $numsec;
1608: $numbers->{'xlists'} += $numxlist;
1609: }
1610: my $showsyllabus = 1; # default is to include a syllabus link
1611: if (defined($coursehash{'showsyllabus'})) {
1612: $showsyllabus = $coursehash{'showsyllabus'};
1613: }
1614: $courseinfo{$course}{'showsyllabus'} = $showsyllabus;
1615: if ($showcredits) {
1616: if ($coursehash{'internal.defaultcredits'}) {
1617: $courseinfo{$course}{'defaultcredits'} = $coursehash{'internal.defaultcredits'};
1618: } elsif ($instcode ne '') {
1619: $courseinfo{$course}{'defaultcredits'} = $defofficial;
1620: } else {
1621: $courseinfo{$course}{'defaultcredits'} = $defunofficial;
1622: }
1623: $defcreds = $courseinfo{$course}{'defaultcredits'};
1624: }
1625: if (((defined($env{'form.coursenum'}) && ($cnum eq $env{'form.coursenum'}))) ||
1626: (($knownuser || $canviewall) && ($details == 1))) {
1627: my $milestone;
1628: if ($wasactiveon eq 'accessend') {
1629: if ($coursehash{'default_enrollment_end_date'}) {
1630: $milestone = $coursehash{'default_enrollment_end_date'};
1631: } else {
1632: $milestone = time;
1633: }
1634: } elsif ($wasactiveon eq 'enrollend') {
1635: if ($coursehash{'internal.autoend'}) {
1636: $milestone = $coursehash{'internal.autoend'};
1637: } else {
1638: $milestone = time;
1639: }
1640: } else {
1641: $milestone = $wasactiveon;
1642: }
1643: $courseinfo{$course}{'counts'} =
1644: &count_students($cdom,$cnum,$numsec,$fields,$fieldtitles,$gettotals,
1645: $numbers,$creditsum,$showcredits,$defcreds,$milestone);
1646: if ($instcode ne '') {
1647: $courseinfo{$course}{'autoenrollment'} =
1648: &autoenroll_info(\%coursehash,$now,$seclist,$xlist_items,
1649: $instcode,\@owners,$cdom,$cnum);
1650: }
1651: my $startaccess = '';
1652: my $endaccess = '';
1653: my $accessdates;
1654: if ( defined($coursehash{'default_enrollment_start_date'}) ) {
1655: $startaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_start_date'});
1656: }
1657: if ( defined($coursehash{'default_enrollment_end_date'}) ) {
1658: $endaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_end_date'});
1659: if ($coursehash{'default_enrollment_end_date'} == 0) {
1660: $endaccess = &mt('No ending date');
1661: }
1662: }
1663: if ($startaccess) {
1664: $accessdates .= '<i>'.&mt('From:[_1]','</i> '.$startaccess).'<br />';
1665: }
1666: if ($endaccess) {
1667: $accessdates .= '<i>'.&mt('To:[_1]','</i> '.$endaccess).'<br />';
1668: }
1669: if (($selfenroll_types ne '') &&
1670: ($selfenroll_end > 0 && $selfenroll_end > $now)) {
1671: my ($selfenroll_start_access,$selfenroll_end_access);
1672: if (($coursehash{'default_enrollment_start_date'} ne
1673: $coursehash{'internal.selfenroll_start_access'}) ||
1674: ($coursehash{'default_enrollment_end_date'} ne
1675: $coursehash{'internal.selfenroll_end_access'})) {
1676: if ( defined($coursehash{'internal.selfenroll_start_access'}) ) {
1677: $selfenroll_start_access = &Apache::lonlocal::locallocaltime($coursehash{'internal.selfenroll_start_access'});
1678: }
1679: if ( defined($coursehash{'default_enrollment_end_date'}) ) {
1680: $selfenroll_end_access = &Apache::lonlocal::locallocaltime($coursehash{'internal.selfenroll_end_access'});
1681: if ($coursehash{'internal.selfenroll_end_access'} == 0) {
1682: $selfenroll_end_access = &mt('No ending date');
1683: }
1684: }
1685: if ($selfenroll_start_access || $selfenroll_end_access) {
1686: $accessdates .= '<br/><br /><i>'.&mt('Self-enrollers:').'</i><br />';
1687: if ($selfenroll_start_access) {
1688: $accessdates .= '<i>'.&mt('From:[_1]','</i> '.$selfenroll_start_access).'<br />';
1689: }
1690: if ($selfenroll_end_access) {
1691: $accessdates .= '<i>'.&mt('To:[_1]','</i> '.$selfenroll_end_access).'<br />';
1692: }
1693: }
1694: }
1695: }
1696: $courseinfo{$course}{'access'} = $accessdates;
1697: }
1698: if ($xlist_items eq '') {
1699: $xlist_items = &mt('No');
1700: }
1701: $courseinfo{$course}{'xlist'} = $xlist_items;
1702: }
1703: if (ref($numbers) eq 'HASH') {
1704: $numbers->{'courses'} = $nocodes + scalar(keys(%uniquecodes));
1705: }
1706: return %courseinfo;
1707: }
1708:
1709: sub count_students {
1710: my ($cdom,$cnum,$numsec,$fieldsref,$titlesref,$getcounts,$numbers,$creditsum,
1711: $showcredits,$defcreds,$wasactiveon) = @_;
1712: my $countslist = '<span class="LC_nobreak">'.
1713: &mt('[quant,_1,section,sections,No sections]',$numsec).'</span>';
1714: my (@fields,%titles,$showexpired);
1715: if ((ref($fieldsref) eq 'ARRAY') && (ref($titlesref) eq 'HASH') &&
1716: (ref($numbers) eq 'HASH')) {
1717: @fields = @{$fieldsref};
1718: %titles = %{$titlesref};
1719: if (grep(/^Previous$/,@fields)) {
1720: $showexpired = 1;
1721: }
1722: } else {
1723: return;
1724: }
1725: my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cnum);
1726: my (%student_count,%credit_count);
1727: %student_count = (
1728: Active => 0,
1729: Future => 0,
1730: Previous => 0,
1731: );
1732: if ($showcredits) {
1733: %credit_count = (
1734: Active => 0,
1735: Future => 0,
1736: Previous => 0,
1737: );
1738: }
1739: my %idx;
1740: $idx{'status'} = &Apache::loncoursedata::CL_STATUS();
1741: $idx{'end'} = &Apache::loncoursedata::CL_END();
1742: $idx{'credits'} = &Apache::loncoursedata::CL_CREDITS();
1743: while (my ($student,$data) = each(%$classlist)) {
1744: my $status = $data->[$idx{'status'}];
1745: my $credits = $data->[$idx{'credits'}];
1746: if ($credits eq '') {
1747: $credits = $defcreds;
1748: }
1749: if ($status eq 'Expired') {
1750: if (($showexpired) &&
1751: ($data->[$idx{'end'}] >= $wasactiveon)) {
1752: $student_count{'Previous'} ++;
1753: if ($showcredits) {
1754: $credit_count{'Previous'} += $credits;
1755: }
1756: }
1757: } else {
1758: $student_count{$status} ++;
1759: if ($showcredits) {
1760: $credit_count{$status} += $credits;
1761: }
1762: }
1763: }
1764: if (@fields) {
1765: $countslist .= ':<br />';
1766: foreach my $status (@fields) {
1767: $countslist .= '<span class="LC_nobreak">'.$titles{$status}.': '.
1768: $student_count{$status}.'</span><br />';
1769: $numbers->{$status} += $student_count{$status};
1770: if ($showcredits) {
1771: $creditsum->{$status} += $credit_count{$status};
1772: }
1773: }
1774: }
1775: return $countslist;
1776: }
1777:
1778: sub courseinfo_row {
1779: my ($info,$knownuser,$details,$countref,$now,$course,$trails,$allitems,$numbers,$canviewall) = @_;
1780: my ($cdom,$cnum,$title,$ownerlast,$code,$owner,$seclist,$xlist_items,
1781: $accessdates,$showsyllabus,$counts,$autoenrollment,$output,$categories);
1782: if (ref($info) eq 'HASH') {
1783: $cdom = $info->{'cdom'};
1784: $cnum = $info->{'cnum'};
1785: $title = $info->{'title'};
1786: $ownerlast = $info->{'ownerlastnames'};
1787: $code = $info->{'code'};
1788: $owner = $info->{'owner'};
1789: $seclist = $info->{'seclist'};
1790: $xlist_items = $info->{'xlist'};
1791: $accessdates = $info->{'access'};
1792: $counts = $info->{'counts'};
1793: $autoenrollment = $info->{'autoenrollment'};
1794: $showsyllabus = $info->{'showsyllabus'};
1795: $categories = $info->{'categories'};
1796: } else {
1797: $output = '<td colspan="8">'.&mt('No information available for [_1].',
1798: $code).'</td>';
1799: return $output;
1800: }
1801: $output .= '<td>'.$$countref.'</td>';
1802: if ($env{'form.currcat_0'} eq 'instcode::0') {
1803: $output .= '<td>'.$code.'</td>';
1804: } else {
1805: my ($categorylist,@cats);
1806: if ($categories ne '') {
1807: @cats = split('&',$categories);
1808: }
1809: if ((ref($trails) eq 'ARRAY') && (ref($allitems) eq 'HASH')) {
1810: my @categories = map { $trails->[$allitems->{$_}]; } @cats;
1811: $categorylist = join('<br />',@categories);
1812: }
1813: if ($categorylist eq '') {
1814: $categorylist = ' ';
1815: }
1816: $output .= '<td>'.$categorylist.'</td>';
1817: }
1818: $output .= '<td>'.$seclist.'</td>'.
1819: '<td>'.$xlist_items.'</td>'.
1820: '<td>'.$title.' <font size="-2">';
1821: if ($showsyllabus) {
1822: $output .= '<a href="javascript:ToSyllabus('."'$cdom','$cnum'".')">'.&mt('Syllabus').'</a>';
1823: } else {
1824: $output .= ' ';
1825: }
1826: $output .= '</font></td>'.
1827: '<td>'.$ownerlast.'</td>';
1828: if (($knownuser) || ($canviewall && $details)) {
1829: if ($details) {
1830: $output .=
1831: '<td>'.$accessdates.'</td>'.
1832: '<td>'.$counts.'</td>';
1833: unless ($env{'form.currcat_0'} eq 'communities::0') {
1834: $output .= '<td>'.$autoenrollment.'</td>';
1835: }
1836: } else {
1837: $output .= "<td><a href=\"javascript:setCourseId('$cnum')\">".&mt('Show more details').'</a></td>';
1838: }
1839: }
1840: my $selfenroll = &selfenroll_status($info,$course);
1841: if ($selfenroll) {
1842: $output .= '<td>'.$selfenroll.'</td>';
1843: } else {
1844: $output .= '<td> </td>';
1845: }
1846: $$countref ++;
1847: return $output;
1848: }
1849:
1850: sub selfenroll_status {
1851: my ($info,$course) = @_;
1852: my $now = time;
1853: my $output;
1854: if (ref($info) eq 'HASH') {
1855: if ($info->{'selfenroll_types'}) {
1856: my $showstart = &Apache::lonlocal::locallocaltime($info->{'selfenroll_start'});
1857: my $showend = &Apache::lonlocal::locallocaltime($info->{'selfenroll_end'});
1858: if (($info->{'selfenroll_end'} > 0) && ($info->{'selfenroll_end'} > $now)) {
1859: if (($info->{'selfenroll_start'} > 0) && ($info->{'selfenroll_start'} > $now)) {
1860: $output = &mt('Starts: [_1]','<span class="LC_cusr_emph">'.$showstart.'</span>').'<br />'.&mt('Ends: [_1]','<span class="LC_cusr_emph">'.$showend.'</span>');
1861: } else {
1862: $output = '<a href="javascript:ToSelfenroll('."'$course'".')">'.
1863: &mt('Enroll in course').'</a><br />';
1864: if ($info->{'selfenroll_end'} == 0) {
1865: $output .= &mt('Available permanently');
1866: } elsif ($info->{'selfenroll_end'} > $now) {
1867: $output .= &mt('Self-enrollment ends: [_1]','<span class="LC_cusr_emph">'.$showend.'</span>');
1868: }
1869: }
1870: }
1871: }
1872: }
1873: return $output;
1874: }
1875:
1876: sub identify_sections {
1877: my ($seclist) = @_;
1878: my @secnums;
1879: if ($seclist =~ /,/) {
1880: my @sections = split(/,/,$seclist);
1881: foreach my $sec (@sections) {
1882: $sec =~ s/:[^:]*$//;
1883: push(@secnums,$sec);
1884: }
1885: } else {
1886: if ($seclist =~ m/^([^:]+):/) {
1887: my $sec = $1;
1888: if (!grep(/^\Q$sec\E$/,@secnums)) {
1889: push(@secnums,$sec);
1890: }
1891: }
1892: }
1893: @secnums = sort {$a <=> $b} @secnums;
1894: $seclist = join(', ',@secnums);
1895: my $numsec = @secnums;
1896: return ($seclist,$numsec);
1897: }
1898:
1899: sub get_valid_classes {
1900: my ($seclist,$xlist_items,$crscode,$owners,$cdom,$cnum) = @_;
1901: my $response;
1902: my (@sections,@xlists,%possclasses,%okclasses,%validations);
1903: @{$validations{'sections'}} = ();
1904: @{$validations{'xlists'}} = ();
1905: my $totalitems = 0;
1906: if ($seclist) {
1907: @sections = split(/,\s+/,$seclist);
1908: map { $possclasses{$crscode.$_} = 1; } @sections;
1909: }
1910: if ($xlist_items) {
1911: @xlists = split(/,\s+/,$xlist_items);
1912: map { $possclasses{$_} = 1; } @xlists;
1913: }
1914: my %okclasses = &Apache::lonnet::auto_validate_instclasses($cdom,$cnum,$owners,
1915: \%possclasses);
1916: if (keys(%okclasses)) {
1917: foreach my $sec (@sections) {
1918: if ($okclasses{$crscode.$sec}) {
1919: if (!grep(/^\Q$sec$\E/,@{$validations{'sections'}})) {
1920: push(@{$validations{'sections'}},$sec);
1921: $totalitems ++;
1922: }
1923: }
1924: }
1925: foreach my $item (@xlists) {
1926: if ($okclasses{$item}) {
1927: if (!grep(/^\Q$item\E$/,@{$validations{'xlists'}})) {
1928: push(@{$validations{'xlists'}},$item);
1929: $totalitems ++;
1930: }
1931: }
1932: }
1933: }
1934: if ($totalitems > 0) {
1935: if (@{$validations{'sections'}}) {
1936: $response = &mt('Sections:').' '.
1937: join(', ',@{$validations{'sections'}}).'<br />';
1938: }
1939: if (@{$validations{'xlists'}}) {
1940: $response .= &mt('Courses:').' '.
1941: join(', ',@{$validations{'xlists'}});
1942: }
1943: }
1944: return $response;
1945: }
1946:
1947: sub autoenroll_info {
1948: my ($coursehash,$now,$seclist,$xlist_items,$code,$owners,$cdom,$cnum) = @_;
1949: my $autoenrolldates = &mt('Not enabled');
1950: if (defined($coursehash->{'internal.autoadds'}) && $coursehash->{'internal.autoadds'} == 1) {
1951: my ($autostart,$autoend);
1952: if ( defined($coursehash->{'internal.autostart'}) ) {
1953: $autostart = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autostart'});
1954: }
1955: if ( defined($coursehash->{'internal.autoend'}) ) {
1956: $autoend = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autoend'});
1957: }
1958: if ($coursehash->{'internal.autostart'} > $now) {
1959: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
1960: $autoenrolldates = &mt('Not enabled');
1961: } else {
1962: my $valid_classes =
1963: &get_valid_classes($seclist,$xlist_items,$code,
1964: $owners,$cdom,$cnum);
1965: if ($valid_classes ne '') {
1966: $autoenrolldates = &mt('Not enabled').'<br />'
1967: .&mt('Starts: [_1]',$autostart)
1968: .'<br />'.$valid_classes;
1969: }
1970: }
1971: } else {
1972: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
1973: $autoenrolldates = &mt('Not enabled').'<br />'
1974: .&mt('Ended: [_1]',$autoend);
1975: } else {
1976: my $valid_classes = &get_valid_classes($seclist,$xlist_items,
1977: $code,$owners,$cdom,$cnum);
1978: if ($valid_classes ne '') {
1979: $autoenrolldates = &mt('Currently enabled').'<br />'.
1980: $valid_classes;
1981: }
1982: }
1983: }
1984: }
1985: return $autoenrolldates;
1986: }
1987:
1988: sub user_is_known {
1989: my $known = 0;
1990: if ($env{'user.name'} ne '' && $env{'user.name'} ne 'public'
1991: && $env{'user.domain'} ne '' && $env{'user.domain'} ne 'public') {
1992: $known = 1;
1993: }
1994: return $known;
1995: }
1996:
1997: 1;
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