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