1: # The LearningOnline Network with CAPA
2: # Handler for displaying the course catalog interface
3: #
4: # $Id: coursecatalog.pm,v 1.24 2007/12/10 23:54:40 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: package Apache::coursecatalog;
30:
31: use strict;
32: use lib qw(/home/httpd/lib/perl);
33: use Apache::Constants qw(:common);
34: use Apache::loncommon;
35: use Apache::lonhtmlcommon;
36: use Apache::lonnet;
37: use Apache::lonlocal;
38: use Apache::courseclassifier;
39: use Apache::lonacc;
40: use LONCAPA;
41:
42: sub handler {
43: my ($r) = @_;
44: &Apache::loncommon::content_type($r,'text/html');
45: $r->send_http_header;
46: if ($r->header_only) {
47: return OK;
48: }
49: my $handle = &Apache::lonnet::check_for_valid_session($r);
50: my $lonidsdir=$r->dir_config('lonIDsDir');
51: if ($handle ne '') {
52: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
53: }
54: &Apache::lonacc::get_posted_cgi($r);
55: &Apache::lonlocal::get_language_handle($r);
56: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['sortby']);
57: my $codedom = &Apache::lonnet::default_login_domain();
58:
59: if (($env{'user.domain'} ne '') && ($env{'user.domain'} ne 'public')) {
60: $codedom = $env{'user.domain'};
61: if ($env{'request.role.domain'} ne '') {
62: $codedom = $env{'request.role.domain'};
63: }
64: }
65: my $formname = 'coursecatalog';
66: my $domdesc = &Apache::lonnet::domain($codedom,'description');
67:
68: &Apache::lonhtmlcommon::clear_breadcrumbs();
69: if ($env{'form.coursenum'} ne '' && &user_is_known()) {
70: &course_details($r,$codedom,$formname,$domdesc);
71: } else {
72: my $numtitles = &course_selector($r,$codedom,$formname,$domdesc);
73: if ($env{'form.state'} eq 'listing') {
74: $r->print(&print_course_listing($codedom,$numtitles).'<br />');
75: }
76: }
77: $r->print(&Apache::loncommon::end_page());
78: return OK;
79: }
80:
81: sub course_details {
82: my ($r,$codedom,$formname,$domdesc) = @_;
83: my $output;
84: my %add_entries = (topmargin => "0",
85: marginheight => "0",);
86: my $start_page =
87: &Apache::loncommon::start_page('Course Catalog','',
88: {
89: 'add_entries' => \%add_entries,
90: 'no_inline_link' => 1,});
91: $r->print($start_page);
92: if ($env{'form.numtitles'} > 0) {
93: &Apache::lonhtmlcommon::add_breadcrumb
94: ({href=>"/adm/coursecatalog",
95: text=>"Select courses"});
96: }
97: &Apache::lonhtmlcommon::add_breadcrumb
98: ({href=>"javascript:document.$formname.submit()",
99: text=>"Course listing"},
100: {text=>"Course details"});
101: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course Details'));
102: $r->print('<br />'.&mt('Detailed course information:').'<br /><br />'.
103: '<form name="coursecatalog" method="post">'.
104: &print_course_listing($codedom).'<br /><br />');
105: $r->print('<a href = "javascript:document.coursecatalog.submit()">'.
106: &mt('Back to course listing').'</a>'.
107: '<input type="hidden" name="sortby" value="'.
108: $env{'form.sortby'}.'" />'.
109: '<input type="hidden" name="state" value="listing" /></form>');
110: }
111:
112: sub course_selector {
113: my ($r,$codedom,$formname,$domdesc) = @_;
114: my %coursecodes = ();
115: my %codes = ();
116: my @codetitles = ();
117: my %cat_titles = ();
118: my %cat_order = ();
119: my %idlist = ();
120: my %idnums = ();
121: my %idlist_titles = ();
122: my %by_year;
123: my %by_sem;
124: my %by_dept;
125: my %cat_items;
126: my $caller = 'global';
127: my $format_reply;
128: my $totcodes = 0;
129: my $jscript = '';
130: my ($numtitles,$lasttitle);
131: $totcodes = &Apache::courseclassifier::retrieve_instcodes(\%coursecodes,$codedom);
132: if ($totcodes > 0) {
133: $format_reply = &Apache::lonnet::auto_instcode_format($caller,$codedom,\%coursecodes,\%codes,\@codetitles,\%cat_titles,\%cat_order);
134: if ($format_reply eq 'ok') {
135: my $numtypes = @codetitles;
136: &Apache::courseclassifier::build_code_selections(\%codes,\@codetitles,\%cat_titles,\%cat_order,\%idlist,\%idnums,\%idlist_titles);
137: my ($scripttext,$longtitles) = &Apache::courseclassifier::javascript_definitions(\@codetitles,\%idlist,\%idlist_titles,\%idnums,\%cat_titles);
138: my $longtitles_str = join('","',@{$longtitles});
139: my $allidlist = $idlist{$codetitles[0]};
140: $numtitles = @codetitles;
141: $lasttitle = $numtitles;
142: if ($numtitles > 4) {
143: $lasttitle = 4;
144: }
145: if ($numtitles == 0) {
146: if (!defined($env{'form.state'})) {
147: $env{'form.state'} = 'listing';
148: }
149: } else {
150: my @data = ('top');
151: for (my $k=0; $k<$lasttitle; $k++) {
152: my $cat = $codetitles[$k];
153: my $level = 1;
154: $level = &recurse_options($codetitles[$k],$idlist{$codetitles[$k]},$level,$cat,\%cat_items,\@data,\%by_year,\%by_sem,\%by_dept);
155: }
156: $scripttext .= &build_javascript(\%by_year,\%by_sem,\%by_dept,\%cat_order,\@codetitles);
157: $jscript .= &javascript_select_filler($formname,$scripttext,\@codetitles,$longtitles_str,$allidlist);
158: if ($env{'form.state'} eq 'listing') {
159: $jscript .= '
160: function setElements() {
161: ';
162: for (my $i=0; $i<@codetitles-1; $i++) {
163: if ($env{'form.'.$codetitles[$i]} != -1) {
164: $jscript .= '
165: for (var j=0; j<document.'.$formname.'.'.$codetitles[$i].'.length; j++) {
166: if (document.'.$formname.'.'.$codetitles[$i].'[j].value == "'.$env{'form.'.$codetitles[$i]}.'") {
167: document.'.$formname.'.'.$codetitles[$i].'.selectedIndex = j;
168: }
169: }
170: ';
171: }
172: }
173: $jscript .= ' courseSet()'."\n";
174: if ($env{'form.'.$codetitles[-1]} != -1) {
175: $jscript .= '
176: for (var j=0; j<document.'.$formname.'.'.$codetitles[-1].'.length; j++) {
177: if (document.'.$formname.'.'.$codetitles[-1].'[j].value == "'.$env{'form.'.$codetitles[-1]}.'") {
178: document.'.$formname.'.'.$codetitles[-1].'.selectedIndex = j;
179: }
180: }
181: ';
182: }
183: $jscript .= '}';
184: }
185: }
186: if ($env{'form.state'} eq 'listing') {
187: $jscript .= qq|
188: function changeSort(caller) {
189: document.$formname.sortby.value = caller;
190: document.$formname.submit();
191: }
192: function setCourseId(caller) {
193: document.$formname.coursenum.value = caller;
194: document.$formname.submit();
195: }\n|;
196: }
197: }
198: my $js = '<script type"text/javascript">'."\n$jscript\n".
199: '</script>';
200: my %add_entries = (topmargin => "0",
201: marginheight => "0",);
202: if (($env{'form.state'} eq 'listing') && ($numtitles > 0)) {
203: $add_entries{'onLoad'} = 'setElements()';
204: }
205: my $start_page =
206: &Apache::loncommon::start_page('Course Catalog',$js,
207: {
208: 'add_entries' => \%add_entries,
209: 'no_inline_link' => 1,});
210: $r->print($start_page);
211: if ($env{'form.state'} eq 'listing') {
212: if ($numtitles > 0) {
213: &Apache::lonhtmlcommon::add_breadcrumb
214: ({href=>"/adm/coursecatalog",
215: text=>"Select courses"},
216: {text=>"Course listing"});
217: } else {
218: &Apache::lonhtmlcommon::add_breadcrumb
219: ({text=>"Course listing"});
220: }
221: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course Listing'));
222: } else {
223: &Apache::lonhtmlcommon::add_breadcrumb
224: ({href=>"/adm/coursecatalog",
225: text=>"Select courses"});
226: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Select courses'));
227: }
228: $r->print('<h3>'.&mt('Display information about official [_1] classes for which LON-CAPA courses have been created:',$domdesc).'</h3>');
229: $r->print('<form name="coursecatalog" method="post">');
230: if ($numtitles > 0) {
231: $r->print(&mt('<b>Choose which course(s) to list.</b><br />'));
232: $r->print('<table><tr>');
233: for (my $k=0; $k<$lasttitle-1; $k++) {
234: my @unsorted = @{$cat_items{$codetitles[$k]}};
235: my @items;
236: &Apache::courseclassifier::sort_cats($k,\%cat_order,\@codetitles,\@unsorted,\@items);
237: my @longitems;
238: if (defined($cat_titles{$codetitles[$k]})) {
239: foreach my $item (@items) {
240: push(@longitems,$cat_titles{$codetitles[$k]}{$item});
241: }
242: } else {
243: @longitems = @items;
244: }
245: $r->print('<td align="center">'.$codetitles[$k].'<br />'."\n".
246: '<select name="'.$codetitles[$k].'" onChange="courseSet()"');
247: $r->print('>'."\n".'<option value="0" />All'."\n");
248: for (my $i=0; $i<@items; $i++) {
249: if ($longitems[$i] eq '') {
250: $longitems[$i] = $items[$i];
251: }
252: $r->print(' <option value="'.$items[$i].'">'.$longitems[$i].'</option>');
253: }
254: $r->print('</select></td>');
255: }
256: $r->print('<td align="center">'.$codetitles[$lasttitle-1].'<br />'."\n".
257: '<select name="'.$codetitles[$lasttitle-1].'">'."\n".
258: '<option value="0">All'."\n".
259: '</option>'."\n".'</select>'."\n".
260: '</td>'
261: );
262: if (&user_is_dc($codedom)) {
263: my $showdetails_status;
264: if ($env{'form.showdetails'}) {
265: $showdetails_status = 'checked="checked" ';
266: }
267: $r->print('<td></td><td><input type="checkbox" name="showdetails" value="1" '.$showdetails_status.'/>'.&mt('Show full details for each course (DC only)').'</td>');
268: }
269: $r->print('</tr></table>');
270: if ($numtitles > 4) {
271: $r->print('<br /><br />'.$codetitles[$numtitles-1].'<br />'."\n".
272: '<input type="text" name="'.$codetitles[$numtitles-1].'" /><br />'."\n");
273: }
274: $r->print('<br />');
275: }
276: $r->print('<input type="hidden" name="coursenum" value="" /><input type="hidden" name="sortby" value="" /><input type="hidden" name="state" value="listing" />');
277: if ($numtitles > 0) {
278: $r->print('<input type="submit" name="catalogfilter" value="'.&mt('Display courses').'" />');
279: }
280: $r->print('<input type="hidden" name="numtitles" value="'.
281: $numtitles.'" /></form>');
282: if (($numtitles > 0) && ($env{'form.state'} eq 'listing')) {
283: $r->print('<br /><br />');
284: }
285: } else {
286: $r->print(&Apache::loncommon::start_page('Course Catalog','',
287: {
288: 'no_inline_link' => 1,}));
289: $r->print('<br />'.&mt('No official courses to display for [_1].',$domdesc));
290: }
291: return $numtitles;
292: }
293:
294: sub user_is_dc {
295: my ($codedom) = @_;
296: if (exists($env{'user.role.dc./'.$codedom.'/'})) {
297: my $livedc = 1;
298: my $now = time;
299: my ($start,$end)=split(/\./,$env{'user.role.dc./'.$codedom.'/'});
300: if ($start && $start>$now) { $livedc = 0; }
301: if ($end && $end <$now) { $livedc = 0; }
302: return $livedc;
303: }
304: return;
305: }
306:
307: sub recurse_options {
308: my ($currkey,$currlist,$level,$cat,$cat_options,$data,$by_year,$by_sem,$by_dept) = @_;
309: if (ref($currlist) eq 'HASH') {
310: $level ++;
311: foreach my $key (sort(keys(%{$currlist}))) {
312: $$data[$level-1]= $key;
313: &recurse_options($key,$currlist->{$key},$level,$cat,$cat_options,$data,$by_year,$by_sem,$by_dept);
314: }
315: } else {
316: $level --;
317: my @contents = split(/","/,$currlist);
318: foreach my $item (@contents) {
319: if (!grep(/^\Q$item\E$/,@{$cat_options->{$cat}})) {
320: push(@{$cat_options->{$cat}},$item);
321: }
322: if ($level == 3) {
323: if (!grep/^\Q$item\E$/,@{$by_year->{$data->[1]}->{$currkey}}) {
324: push(@{$by_year->{$data->[1]}->{$currkey}},$item);
325: }
326: if (!grep/^\Q$item\E$/,@{$by_sem->{$data->[2]}->{$currkey}}) {
327: push(@{$by_sem->{$data->[2]}->{$currkey}},$item);
328: }
329: if (!grep/^\Q$item\E$/,@{$by_dept->{$currkey}}) {
330: push(@{$by_dept->{$currkey}},$item);
331: }
332:
333: }
334: }
335: }
336: return $level;
337: }
338:
339: sub build_javascript {
340: my ($by_year,$by_sem,$by_dept,$cat_order,$codetitles) = @_;
341: my @unsorted = keys(%{$by_year});
342: my @sorted_yrs;
343: &Apache::courseclassifier::sort_cats('0',$cat_order,$codetitles,\@unsorted,\@sorted_yrs);
344: my $output = 'var idcse_by_yr_year = new Array("'.join('","',@sorted_yrs).'");'."\n".
345: 'var idcse_by_yr_dept = new Array('.scalar(@sorted_yrs).');'."\n".
346: 'var idcse_by_yr_num = new Array('.scalar(@sorted_yrs).');'."\n";
347: for (my $i=0; $i<@sorted_yrs; $i++) {
348: my $numkeys = keys(%{$by_year->{$sorted_yrs[$i]}});
349: $output .= " idcse_by_yr_num[$i] = new Array($numkeys);\n";
350: if (ref($by_year->{$sorted_yrs[$i]}) eq 'HASH') {
351: @unsorted = keys(%{$by_year->{$sorted_yrs[$i]}});
352: my @sorted_depts;
353: &Apache::courseclassifier::sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_depts);
354: $output .= qq| idcse_by_yr_dept[$i] = new Array ("|.join('","',@sorted_depts).'");'."\n";
355: for (my $j=0; $j<@sorted_depts; $j++) {
356: $output .= qq| idcse_by_yr_num[$i][$j] = new Array ("|;
357: $output .= join('","',sort(@{$by_year->{$sorted_yrs[$i]}->{$sorted_depts[$j]}})).'");'."\n";
358: }
359: }
360: }
361: @unsorted = keys(%{$by_sem});
362: my @sorted_sems;
363: &Apache::courseclassifier::sort_cats('1',$cat_order,$codetitles,\@unsorted,\@sorted_sems);
364: $output .= 'idcse_by_sem_sems = new Array("'.join('","',@sorted_sems).'");'."\n".
365: 'idcse_by_sem_dept = new Array('.scalar(@sorted_sems).');'."\n".
366: 'idcse_by_sem_num = new Array('.scalar(@sorted_sems).');'."\n";
367: for (my $i=0; $i<@sorted_sems; $i++) {
368: my $numkeys = keys(%{$by_sem->{$sorted_sems[$i]}});
369: $output .= " idcse_by_sem_num[$i] = new Array($numkeys);\n";
370: if (ref($by_sem->{$sorted_sems[$i]}) eq 'HASH') {
371: @unsorted = keys(%{$by_sem->{$sorted_sems[$i]}});
372: my @sorted_depts;
373: &Apache::courseclassifier::sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_depts);
374: $output .= qq| idcse_by_sem_dept[$i] = new Array("|.join('","',@sorted_depts).'");'."\n";
375: for (my $j=0; $j<@sorted_depts; $j++) {
376: $output .= qq| idcse_by_sem_num[$i][$j] = new Array ("|.join('","',sort(@{$by_sem->{$sorted_sems[$i]}->{$sorted_depts[$j]}})).'");'."\n";
377: }
378: }
379: }
380: @unsorted = keys(%{$by_dept});
381: my @sorted_deps;
382: &Apache::courseclassifier::sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_deps);
383: $output .= 'idcse_by_dep = new Array('.scalar(@sorted_deps).');'."\n";
384: for (my $k=0; $k<@sorted_deps; $k++) {
385: $output .= qq| idcse_by_dep[$k] = new Array ("|.join('","',sort(@{$by_dept->{$sorted_deps[$k]}})).'");'."\n";
386: }
387: return $output;
388: }
389:
390: sub search_courselist {
391: my ($domain,$numtitles) = @_;
392: my $instcode;
393: if (defined($numtitles) && $numtitles == 0) {
394: $instcode = '.+';
395: } else {
396: my (%codedefaults,@code_order);
397: my $defaults_result =
398: &Apache::lonnet::auto_instcode_defaults($domain,\%codedefaults,
399: \@code_order);
400: if ($defaults_result eq 'ok') {
401: $instcode ='^';
402: foreach my $item (@code_order) {
403: if ($env{'form.'.$item} eq '0' ) {
404: $instcode .= $codedefaults{$item};
405: } else {
406: $instcode .= $env{'form.'.$item};
407: }
408: }
409: $instcode .= '$';
410: } else {
411: $instcode = '.';
412: }
413: }
414: my %courses = &Apache::lonnet::courseiddump($domain,'.',1,$instcode,'.','.',
415: undef,undef,'Course',1);
416: return %courses;
417: }
418:
419:
420: sub print_course_listing {
421: my ($domain,$numtitles) = @_;
422: my $output;
423: my %courses;
424: my $knownuser = &user_is_known();
425: my $details = $env{'form.coursenum'};
426: if (&user_is_dc($domain)) {
427: if ($env{'form.showdetails'}) {
428: $details = 1;
429: }
430: }
431: if ($env{'form.coursenum'} ne '') {
432: %courses = &Apache::lonnet::courseiddump($domain,'.',1,'.','.',
433: $env{'form.coursenum'},
434: undef,undef,'Course',1);
435: if (keys(%courses) == 0) {
436: $output .= &mt('The courseID provided does not match a course in this domain.');
437: return $output;
438: }
439: } else {
440: %courses = &search_courselist($domain,$numtitles);
441: if (keys(%courses) == 0) {
442: $output = &mt('No courses match the criteria you selected.');
443: return $output;
444: }
445: if ($knownuser && !$env{'form.showdetails'}) {
446: $output = &mt('<b>Note for students:</b> 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.<br /><br />');
447: }
448: }
449: $output .= &construct_data_table($knownuser,\%courses,$details);
450: $output .= &Apache::lonhtmlcommon::echo_form_input(['coursenum','state','catalogfilter','sortby','showdetails']);
451: return $output;
452: }
453:
454: sub construct_data_table {
455: my ($knownuser,$courses,$details,$usersections) = @_;
456: my %sortname;
457: if (($details eq '') || ($env{'form.showdetails'})) {
458: $sortname{'Code'} = 'code';
459: $sortname{'Title'} = 'title';
460: $sortname{'Owner(s)'} = 'owner';
461: }
462: my $output = &Apache::loncommon::start_data_table().
463: &Apache::loncommon::start_data_table_header_row();
464: my @coltitles = ('Count','Code','Sections','Crosslisted','Title','Owner(s)');
465: if (ref($usersections) eq 'HASH') {
466: $coltitles[1] = 'Your Section';
467: }
468: foreach my $item (@coltitles) {
469: $output .= '<th>';
470: if (defined($sortname{$item})) {
471: $output .= '<a href="javascript:changeSort('."'$sortname{$item}'".')">'.&mt($item).'</a>';
472: } elsif ($item eq 'Count') {
473: $output .= ' ';
474: } else {
475: $output .= &mt($item);
476: }
477: $output .= '</th>';
478: }
479: if ($knownuser) {
480: if ($details) {
481: $output .=
482: '<th>'.&mt('Default Access Dates for Students').'</th>'.
483: '<th>'.&mt('Student Counts').'</th>'.
484: '<th>'.&mt('Auto-enrollment of <br />registered students').'</th>';
485: } else {
486: $output .= '<th> </th>';
487: }
488: }
489: &Apache::loncommon::end_data_table_header_row();
490: my %courseinfo = &build_courseinfo_hash($courses,$knownuser,$details,
491: $usersections);
492: my %Sortby;
493: foreach my $course (sort(keys(%{$courses}))) {
494: if ($env{'form.sortby'} eq 'code') {
495: push(@{$Sortby{$courseinfo{$course}{'code'}}},$course);
496: } elsif ($env{'form.sortby'} eq 'owner') {
497: push(@{$Sortby{$courseinfo{$course}{'ownerlastnames'}}},$course);
498: } else {
499: push(@{$Sortby{$courseinfo{$course}{'title'}}},$course);
500: }
501: }
502: my @sorted_courses;
503: if (($env{'form.sortby'} eq 'code') || ($env{'form.sortby'} eq 'owner')) {
504: @sorted_courses = sort(keys(%Sortby));
505: } else {
506: @sorted_courses = sort { lc($a) cmp lc($b) } (keys(%Sortby));
507: }
508: my $count = 1;
509: foreach my $item (@sorted_courses) {
510: foreach my $course (@{$Sortby{$item}}) {
511: $output.=&Apache::loncommon::start_data_table_row();
512: $output.=&courseinfo_row($courseinfo{$course},$knownuser,$details,\$count);
513: $output.=&Apache::loncommon::end_data_table_row();
514: }
515: }
516: $output .= &Apache::loncommon::end_data_table();
517: return $output;
518: }
519:
520: sub build_courseinfo_hash {
521: my ($courses,$knownuser,$details,$usersections) = @_;
522: my %courseinfo;
523: my $now = time;
524: foreach my $course (keys(%{$courses})) {
525: my $descr;
526: if (ref($courses->{$course}) eq 'HASH') {
527: $descr = $courses->{$course}{'description'};
528: }
529: my $cleandesc=&HTML::Entities::encode($descr,'<>&"');
530: $cleandesc=~s/'/\\'/g;
531: $cleandesc =~ s/^\s+//;
532: my ($cdom,$cnum)=split(/\_/,$course);
533: my ($descr,$instcode,$singleowner,$ttype,@owners,%ownernames);
534: if (ref($courses->{$course}) eq 'HASH') {
535: $descr = $courses->{$course}{'description'};
536: $instcode = $courses->{$course}{'inst_code'};
537: $singleowner = $courses->{$course}{'owner'};
538: $ttype = $courses->{$course}{'type'};
539: push(@owners,$singleowner);
540: if (ref($courses->{$course}{'co-owners'}) eq 'ARRAY') {
541: foreach my $item (@{$courses->{$course}{'co-owners'}}) {
542: push(@owners,$item);
543: }
544: }
545: }
546: foreach my $owner (@owners) {
547: my ($ownername,$ownerdom) = @_;
548: if ($owner =~ /:/) {
549: ($ownername,$ownerdom) = split(/:/,$owner);
550: } else {
551: $ownername = $owner;
552: if ($owner ne '') {
553: $ownerdom = $cdom;
554: }
555: }
556: if ($ownername ne '' && $ownerdom ne '') {
557: my %namehash=&Apache::loncommon::getnames($ownername,$ownerdom);
558: $ownernames{$ownername.':'.$ownerdom} = \%namehash;
559: }
560: }
561: $courseinfo{$course}{'cdom'} = $cdom;
562: $courseinfo{$course}{'cnum'} = $cnum;
563: $courseinfo{$course}{'code'} = $instcode;
564: my @lastnames;
565: foreach my $owner (keys(%ownernames)) {
566: if (ref($ownernames{$owner}) eq 'HASH') {
567: push(@lastnames,$ownernames{$owner}{'lastname'});
568: }
569: }
570: $courseinfo{$course}{'ownerlastnames'} = join(', ',sort(@lastnames));
571: $courseinfo{$course}{'title'} = $cleandesc;
572: $courseinfo{$course}{'owner'} = $singleowner;
573:
574: my %coursehash = &Apache::lonnet::dump('environment',$cdom,$cnum);
575: my @classids;
576: my @crosslistings;
577: my ($seclist,$numsec) =
578: &identify_sections($coursehash{'internal.sectionnums'});
579: if (ref($usersections) eq 'HASH') {
580: if (ref($usersections->{$course}) eq 'ARRAY') {
581: $seclist = join(', ',@{$usersections->{$course}});
582: }
583: }
584: $courseinfo{$course}{'seclist'} = $seclist;
585: my ($xlist_items,$numxlist) =
586: &identify_sections($coursehash{'internal.crosslistings'});
587: my $showsyllabus = 1; # default is to include a syllabus link
588: if (defined($coursehash{'showsyllabus'})) {
589: $showsyllabus = $coursehash{'showsyllabus'};
590: }
591: $courseinfo{$course}{'showsyllabus'} = $showsyllabus;
592: if (((defined($env{'form.coursenum'}) && ($cnum eq $env{'form.coursenum'}))) ||
593: ($knownuser && ($details == 1))) {
594: $courseinfo{$course}{'counts'} = &count_students($cdom,$cnum,$numsec);
595: $courseinfo{$course}{'autoenrollment'} =
596: &autoenroll_info(\%coursehash,$now,$seclist,$xlist_items,
597: $instcode,\@owners,$cdom,$cnum);
598:
599: my $startaccess = '';
600: my $endaccess = '';
601: my $accessdates;
602: if ( defined($coursehash{'default_enrollment_start_date'}) ) {
603: $startaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_start_date'});
604: }
605: if ( defined($coursehash{'default_enrollment_end_date'}) ) {
606: $endaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_end_date'});
607: if ($coursehash{'default_enrollment_end_date'} == 0) {
608: $endaccess = "No ending date";
609: }
610: }
611: if ($startaccess) {
612: $accessdates .= &mt('<i>From:</i> ').$startaccess.'<br />';
613: }
614: if ($endaccess) {
615: $accessdates .= &mt('<i>To:</i> ').$endaccess.'<br />';
616: }
617: $courseinfo{$course}{'access'} = $accessdates;
618: }
619: if ($xlist_items eq '') {
620: $xlist_items = &mt('No');
621: }
622: $courseinfo{$course}{'xlist'} = $xlist_items;
623: }
624: return %courseinfo;
625: }
626:
627: sub count_students {
628: my ($cdom,$cnum,$numsec) = @_;
629: my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cnum);
630: my %student_count = (
631: Active => 0,
632: Future => 0,
633: Expired => 0,
634: );
635: my %idx;
636: $idx{'status'} = &Apache::loncoursedata::CL_STATUS();
637: my %status_title = &Apache::lonlocal::texthash(
638: Expired => 'Previous access',
639: Active => 'Current access',
640: Future => 'Future access',
641: );
642:
643: while (my ($student,$data) = each(%$classlist)) {
644: $student_count{$data->[$idx{'status'}]} ++;
645: }
646:
647: my $countslist = &mt('[quant,_1,section]',$numsec).':<br />';
648: foreach my $status ('Active','Future') {
649: $countslist .= '<nobr>'.$status_title{$status}.': '.
650: $student_count{$status}.'</nobr><br />';
651: }
652: return $countslist;
653: }
654:
655: sub courseinfo_row {
656: my ($info,$knownuser,$details,$countref) = @_;
657: my ($cdom,$cnum,$title,$ownerlast,$code,$owner,$seclist,$xlist_items,
658: $accessdates,$showsyllabus,$counts,$autoenrollment,$output);
659: if (ref($info) eq 'HASH') {
660: $cdom = $info->{'cdom'};
661: $cnum = $info->{'cnum'};
662: $title = $info->{'title'};
663: $ownerlast = $info->{'ownerlastnames'};
664: $code = $info->{'code'};
665: $owner = $info->{'owner'};
666: $seclist = $info->{'seclist'};
667: $xlist_items = $info->{'xlist'};
668: $accessdates = $info->{'access'};
669: $counts = $info->{'counts'};
670: $autoenrollment = $info->{'autoenrollment'};
671: $showsyllabus = $info->{'showsyllabus'};
672: } else {
673: $output = '<td colspan="8">'.&mt('No information available for [_1].',
674: $code).'</td>';
675: return $output;
676: }
677: $output .= '<td>'.$$countref.'</td>'.
678: '<td>'.$code.'</td>'.
679: '<td>'.$seclist.'</td>'.
680: '<td>'.$xlist_items.'</td>'.
681: '<td>'.$title.' <font size="-2">';
682: if ($showsyllabus) {
683: $output .= &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$cnum,$cdom);
684: } else {
685: $output .= ' ';
686: }
687: $output .= '</font></td>'.
688: '<td>'.$ownerlast.'</td>';
689: if ($knownuser) {
690: if ($details) {
691: $output .=
692: '<td>'.$accessdates.'</td>'.
693: '<td>'.$counts.'</td>'.
694: '<td>'.$autoenrollment.'</td>';
695: } else {
696: $output .= "<td><a href=\"javascript:setCourseId('$cnum')\">".&mt('Show more details').'</a></td>';
697: }
698: }
699: $$countref ++;
700: return $output;
701: }
702:
703: sub identify_sections {
704: my ($seclist) = @_;
705: my @secnums;
706: if ($seclist =~ /,/) {
707: my @sections = split(/,/,$seclist);
708: foreach my $sec (@sections) {
709: $sec =~ s/:[^:]*$//;
710: push(@secnums,$sec);
711: }
712: } else {
713: if ($seclist =~ m/^([^:]+):/) {
714: my $sec = $1;
715: if (!grep(/^\Q$sec\E$/,@secnums)) {
716: push(@secnums,$sec);
717: }
718: }
719: }
720: @secnums = sort {$a <=> $b} @secnums;
721: my $seclist = join(', ',@secnums);
722: my $numsec = @secnums;
723: return ($seclist,$numsec);
724: }
725:
726: sub get_valid_classes {
727: my ($seclist,$xlist_items,$crscode,$owners,$cdom,$cnum) = @_;
728: my $response;
729: my %validations;
730: @{$validations{'sections'}} = ();
731: @{$validations{'xlists'}} = ();
732: my $totalitems = 0;
733: if ($seclist) {
734: foreach my $sec (split(/, /,$seclist)) {
735: my $class = $crscode.$sec;
736: if (&Apache::lonnet::auto_validate_class_sec($cdom,$cnum,$owners,
737: $class) eq 'ok') {
738: if (!grep(/^\Q$sec$\E/,@{$validations{'sections'}})) {
739: push(@{$validations{'sections'}},$sec);
740: $totalitems ++;
741: }
742: }
743: }
744: }
745: if ($xlist_items) {
746: foreach my $item (split(/, /,$xlist_items)) {
747: if (&Apache::lonnet::auto_validate_class_sec($cdom,$cnum,$owners,
748: $item) eq 'ok') {
749: if (!grep(/^\Q$item$\E/,@{$validations{'xlists'}})) {
750: push(@{$validations{'xlists'}},$item);
751: $totalitems ++;
752: }
753: }
754: }
755: }
756: if ($totalitems > 0) {
757: if (@{$validations{'sections'}}) {
758: $response = &mt('Sections: ').
759: join(', ',@{$validations{'sections'}}).'<br />';
760: }
761: if (@{$validations{'xlists'}}) {
762: $response .= &mt('Courses: ').
763: join(', ',@{$validations{'xlists'}});
764: }
765: }
766: return $response;
767: }
768:
769: sub javascript_select_filler {
770: my ($formname,$scripttext,$codetitles,$longtitles_str,$allidlist) = @_;
771: my $output = <<END;
772: function courseSet() {
773: var longtitles = new Array ("$longtitles_str");
774: var valyr = document.$formname.Year.options[document.$formname.Year.selectedIndex].value
775: var valsem = document.$formname.Semester.options[document.$formname.Semester.selectedIndex].value
776: var valdept = document.$formname.Department.options[document.$formname.Department.selectedIndex].value
777: var valclass = document.$formname.Number.options[document.$formname.Number.selectedIndex].value
778: var idyears = new Array("$allidlist");
779: var idyr = -1;
780: var idsem = -1;
781: var iddept = -1;
782: document.$formname.Number.length = 0;
783:
784: $scripttext
785:
786: selYear = document.$formname.Year.selectedIndex-1;
787: selSemester = document.$formname.Semester.selectedIndex-1;
788: selDepartment = document.$formname.Department.selectedIndex-1;
789: if (selYear == -1) {
790: if (selSemester == -1) {
791: if (selDepartment > -1) {
792: document.$formname.Number.options[0] = new Option('All','0',false,false);
793: for (var k=0; k<idcse_by_dep[selDepartment].length; k++) {
794: document.$formname.Number.options[k+1] = new Option(idcse_by_dep[selDepartment][k],idcse_by_dep[selDepartment][k],false,false);
795:
796: }
797: }
798: else {
799: document.$formname.Number.options[0] = new Option("All","0",true,true);
800: }
801: }
802: else {
803: if (selDepartment > -1) {
804: for (var i=0; i<idcse_by_sem_sems.length; i++) {
805: if (idcse_by_sem_sems[i] == valsem) {
806: idsem = i;
807: }
808: }
809: if (idsem != -1) {
810: for (var i=0; i<idcse_by_sem_dept[idsem].length; i++) {
811: if (idcse_by_sem_dept[idsem][i] == valdept) {
812: iddept = i;
813: }
814: }
815: }
816: if (iddept != -1) {
817: document.$formname.Number.options[0] = new Option('All','0',false,false);
818: for (var k=0; k<idcse_by_sem_num[idsem][iddept].length; k++) {
819: document.$formname.Number.options[k+1] = new Option(idcse_by_sem_num[idsem][iddept][k],idcse_by_sem_num[idsem][iddept][k],false,false);
820: }
821: }
822: else {
823: document.$formname.Number.options[0] = new Option('No courses','0',true,true);
824: }
825: }
826: else {
827: document.$formname.Number.options[0] = new Option("All","0",true,true);
828: }
829: }
830: }
831: else {
832: if (selSemester == -1) {
833: if (selDepartment > -1) {
834: for (var i=0; i<idcse_by_yr_year.length; i++) {
835: if (idcse_by_yr_year[i] == valyr) {
836: idyr = i;
837: }
838: }
839: if (idyr != -1) {
840: for (var i=0; i<idcse_by_yr_dept[idyr].length; i++) {
841: if (idcse_by_yr_dept[idyr][i] == valdept) {
842: iddept = i;
843: }
844: }
845: }
846: if (iddept != -1) {
847: document.$formname.Number.options[0] = new Option('All','0',false,false);
848: for (var k=0; k<idcse_by_yr_num[idyr][iddept].length; k++) {
849: document.$formname.Number.options[k+1] = new Option(idcse_by_yr_num[idyr][iddept][k],idcse_by_yr_num[idyr][iddept][k],false,false);
850: }
851: }
852: else {
853: document.$formname.Number.options[0] = new Option('No courses','0',true,true);
854: }
855: }
856: else {
857: document.$formname.Number.options[0] = new Option("All","0",true,true);
858: }
859: }
860: else {
861: if (selDepartment > -1) {
862: for (var k=0; k<idyears.length; k++) {
863: if (idyears[k] == valyr) {
864: idyr = k;
865: }
866: }
867: if (idyr != -1) {
868: for (var k=0; k<idsems[idyr].length; k++) {
869: if (idsems[idyr][k] == valsem) {
870: idsem = k;
871: }
872: }
873: }
874: if (idsem != -1) {
875: for (var k=0; k<idcodes[idyr][idsem].length; k++) {
876: if (idcodes[idyr][idsem][k] == valdept) {
877: iddept = k;
878: }
879: }
880: }
881: if (iddept != -1) {
882: document.$formname.Number.options[0] = new Option('All','0',false,false);
883: for (var i=0; i<idcourses[idyr][idsem][iddept].length; i++) {
884: var display = idcourses[idyr][idsem][iddept][i];
885: if (longtitles[3] == 1) {
886: if (idcourseslongs[idyr][idsem][iddept][i] != "") {
887: display = idcourseslongs[idyr][idsem][iddept][i]
888: }
889: }
890: document.$formname.Number.options[i+1] = new Option(display,idcourses[idyr][idsem][iddept][i],false,false)
891: }
892: }
893: else {
894: document.$formname.Number.options[0] = new Option('No courses','0',true,true);
895: }
896: }
897: else {
898: document.$formname.Number.options[0] = new Option('All','0',true,true);
899: }
900: }
901: document.$formname.Number.selectedIndex = 0
902: }
903: }
904: END
905: return $output;
906: }
907:
908: sub autoenroll_info {
909: my ($coursehash,$now,$seclist,$xlist_items,$code,$owners,$cdom,$cnum) = @_;
910: my $autoenrolldates = &mt('Not enabled');
911: if (defined($coursehash->{'internal.autoadds'}) && $coursehash->{'internal.autoadds'} == 1) {
912: my ($autostart,$autoend);
913: if ( defined($coursehash->{'internal.autostart'}) ) {
914: $autostart = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autostart'});
915: }
916: if ( defined($coursehash->{'internal.autoend'}) ) {
917: $autoend = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autoend'});
918: }
919: if ($coursehash->{'internal.autostart'} > $now) {
920: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
921: $autoenrolldates = &mt('Not enabled');
922: } else {
923: my $valid_classes =
924: &get_valid_classes($seclist,$xlist_items,$code,
925: $owners,$cdom,$cnum);
926: if ($valid_classes ne '') {
927: $autoenrolldates = &mt('Not enabled<br />Starts: ').
928: $autostart.'<br />'.$valid_classes; }
929: }
930: } else {
931: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
932: $autoenrolldates = &mt('Not enabled<br />Ended: ').$autoend;
933: } else {
934: my $valid_classes = &get_valid_classes($seclist,$xlist_items,
935: $code,$owners,$cdom,$cnum);
936: if ($valid_classes ne '') {
937: $autoenrolldates = &mt('Currently enabled<br />').
938: $valid_classes;
939: }
940: }
941: }
942: }
943: return $autoenrolldates;
944: }
945:
946: sub user_is_known {
947: my $known = 0;
948: if ($env{'user.name'} ne '' && $env{'user.name'} ne 'public'
949: && $env{'user.domain'} ne '' && $env{'user.domain'} ne 'public') {
950: $known = 1;
951: }
952: return $known;
953: }
954:
955: 1;
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