Annotation of loncom/interface/coursecatalog.pm, revision 1.18
1.17 albertel 1: # The LearningOnline Network with CAPA
2: # Handler for displaying the course catalog interface
3: #
1.18 ! raeburn 4: # $Id: coursecatalog.pm,v 1.17 2007/01/12 21:07:37 albertel Exp $
1.1 raeburn 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: package Apache::coursecatalog;
30:
31: use strict;
32: use lib qw(/home/httpd/lib/perl);
33: use Apache::Constants qw(:common);
34: use Apache::loncommon;
1.7 raeburn 35: use Apache::lonhtmlcommon;
1.1 raeburn 36: use Apache::lonnet;
37: use Apache::lonlocal;
1.6 raeburn 38: use Apache::courseclassifier;
1.1 raeburn 39: use Apache::lonacc;
40: use LONCAPA;
41:
42: sub handler {
43: my ($r) = @_;
44: &Apache::loncommon::content_type($r,'text/html');
45: $r->send_http_header;
46: if ($r->header_only) {
47: return OK;
48: }
1.8 raeburn 49: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
50: my $lonid=$cookies{'lonID'};
51: my $lonidsdir=$r->dir_config('lonIDsDir');
52: my $handle;
53: if ($lonid) {
1.12 raeburn 54: $handle=&LONCAPA::clean_handle($lonid->value);
1.8 raeburn 55: }
56: if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) {
57: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
58: }
1.1 raeburn 59: &Apache::lonacc::get_posted_cgi($r);
60: &Apache::lonlocal::get_language_handle($r);
61: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['sortby']);
62: my $codedom = $Apache::lonnet::perlvar{'lonDefDomain'};
1.7 raeburn 63: my $formname = 'coursecatalog';
64: my $domdesc = $Apache::lonnet::domaindescription{$codedom};
65:
66: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.8 raeburn 67: if ($env{'form.coursenum'} ne '' && &user_is_known()) {
1.7 raeburn 68: &course_details($r,$codedom,$formname,$domdesc);
69: } else {
1.18 ! raeburn 70: my $numtitles = &course_selector($r,$codedom,$formname,$domdesc);
1.7 raeburn 71: if ($env{'form.state'} eq 'listing') {
1.18 ! raeburn 72: $r->print(&print_course_listing($codedom,$numtitles).'<br />');
! 73: }
1.7 raeburn 74: }
75: $r->print(&Apache::loncommon::end_page());
76: return OK;
77: }
78:
79: sub course_details {
80: my ($r,$codedom,$formname,$domdesc) = @_;
81: my $output;
82: my %add_entries = (topmargin => "0",
83: marginheight => "0",);
84: my $start_page =
85: &Apache::loncommon::start_page('Course Catalog','',
86: {
87: 'add_entries' => \%add_entries,
88: 'no_inline_link' => 1,});
89: $r->print($start_page);
90: &Apache::lonhtmlcommon::add_breadcrumb
91: ({href=>"/adm/coursecatalog",
92: text=>"Select courses"},
93: {href=>"javascript:document.$formname.submit()",
94: text=>"Course listing"},
95: {text=>"Course details"});
96: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course Details'));
97: $r->print('<br />'.&mt('Detailed course information:').'<br /><br />'.
98: '<form name="coursecatalog" method="post">'.
99: &print_course_listing($codedom).'<br /><br />');
100: $r->print('<a href = "javascript:document.coursecatalog.submit()">'.
101: &mt('Back to course listing').'</a>'.
102: '<input type="hidden" name="sortby" value="'.
103: $env{'form.sortby'}.'" />'.
104: '<input type="hidden" name="state" value="listing" /></form>');
105: }
106:
107: sub course_selector {
108: my ($r,$codedom,$formname,$domdesc) = @_;
1.1 raeburn 109: my %coursecodes = ();
110: my %codes = ();
111: my @codetitles = ();
112: my %cat_titles = ();
113: my %cat_order = ();
114: my %idlist = ();
115: my %idnums = ();
116: my %idlist_titles = ();
1.6 raeburn 117: my %by_year;
118: my %by_sem;
119: my %by_dept;
120: my %cat_items;
1.1 raeburn 121: my $caller = 'global';
122: my $format_reply;
123: my $totcodes = 0;
124: my $jscript = '';
1.6 raeburn 125: my ($numtitles,$lasttitle);
126: $totcodes = &Apache::courseclassifier::retrieve_instcodes(\%coursecodes,$codedom,$totcodes);
1.1 raeburn 127: if ($totcodes > 0) {
1.6 raeburn 128: $format_reply = &Apache::lonnet::auto_instcode_format($caller,$codedom,\%coursecodes,\%codes,\@codetitles,\%cat_titles,\%cat_order);
129: if ($format_reply eq 'ok') {
130: my $numtypes = @codetitles;
131: &Apache::courseclassifier::build_code_selections(\%codes,\@codetitles,\%cat_titles,\%cat_order,\%idlist,\%idnums,\%idlist_titles);
132: my ($scripttext,$longtitles) = &Apache::courseclassifier::javascript_definitions(\@codetitles,\%idlist,\%idlist_titles,\%idnums,\%cat_titles);
133: my $longtitles_str = join('","',@{$longtitles});
134: my $allidlist = $idlist{$codetitles[0]};
135: $numtitles = @codetitles;
136: $lasttitle = $numtitles;
137: if ($numtitles > 4) {
138: $lasttitle = 4;
1.1 raeburn 139: }
1.18 ! raeburn 140: if ($numtitles == 0) {
! 141: if (!defined($env{'form.state'})) {
! 142: $env{'form.state'} = 'listing';
! 143: }
! 144: } else {
! 145: my @data = ('top');
! 146: for (my $k=0; $k<$lasttitle; $k++) {
! 147: my $cat = $codetitles[$k];
! 148: my $level = 1;
! 149: $level = &recurse_options($codetitles[$k],$idlist{$codetitles[$k]},$level,$cat,\%cat_items,\@data,\%by_year,\%by_sem,\%by_dept);
! 150: }
! 151: $scripttext .= &build_javascript(\%by_year,\%by_sem,\%by_dept,\%cat_order,\@codetitles);
! 152: $jscript .= &javascript_select_filler($formname,$scripttext,\@codetitles,$longtitles_str,$allidlist);
! 153: if ($env{'form.state'} eq 'listing') {
! 154: $jscript .= '
1.1 raeburn 155: function setElements() {
156: ';
1.18 ! raeburn 157: for (my $i=0; $i<@codetitles-1; $i++) {
! 158: if ($env{'form.'.$codetitles[$i]} != -1) {
! 159: $jscript .= '
1.1 raeburn 160: for (var j=0; j<document.'.$formname.'.'.$codetitles[$i].'.length; j++) {
161: if (document.'.$formname.'.'.$codetitles[$i].'[j].value == "'.$env{'form.'.$codetitles[$i]}.'") {
162: document.'.$formname.'.'.$codetitles[$i].'.selectedIndex = j;
163: }
164: }
165: ';
1.18 ! raeburn 166: }
! 167: }
! 168: $jscript .= ' courseSet()'."\n";
! 169: if ($env{'form.'.$codetitles[-1]} != -1) {
! 170: $jscript .= '
1.6 raeburn 171: for (var j=0; j<document.'.$formname.'.'.$codetitles[-1].'.length; j++) {
172: if (document.'.$formname.'.'.$codetitles[-1].'[j].value == "'.$env{'form.'.$codetitles[-1]}.'") {
173: document.'.$formname.'.'.$codetitles[-1].'.selectedIndex = j;
174: }
175: }
176: ';
1.18 ! raeburn 177: }
! 178: $jscript .= '}';
! 179: }
1.6 raeburn 180: }
1.18 ! raeburn 181: if ($env{'form.state'} eq 'listing') {
! 182: $jscript .= qq|
1.1 raeburn 183: function changeSort(caller) {
1.7 raeburn 184: document.$formname.sortby.value = caller;
185: document.$formname.submit();
186: }
187: function setCourseId(caller) {
188: document.$formname.coursenum.value = caller;
189: document.$formname.submit();
1.1 raeburn 190: }\n|;
1.18 ! raeburn 191: }
1.1 raeburn 192: }
193: my $js = '<script type"text/javascript">'."\n$jscript\n".
194: '</script>';
195: my %add_entries = (topmargin => "0",
1.7 raeburn 196: marginheight => "0",);
1.18 ! raeburn 197: if (($env{'form.state'} eq 'listing') && ($numtitles > 0)) {
1.7 raeburn 198: $add_entries{'onLoad'} = 'setElements()';
199: }
1.1 raeburn 200: my $start_page =
201: &Apache::loncommon::start_page('Course Catalog',$js,
1.7 raeburn 202: {
1.1 raeburn 203: 'add_entries' => \%add_entries,
204: 'no_inline_link' => 1,});
205: $r->print($start_page);
1.7 raeburn 206: if ($env{'form.state'} eq 'listing') {
207: &Apache::lonhtmlcommon::add_breadcrumb
208: ({href=>"/adm/coursecatalog",
209: text=>"Select courses"},
210: {text=>"Course listing"});
211: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Course Listing'));
212: } else {
213: &Apache::lonhtmlcommon::add_breadcrumb
214: ({href=>"/adm/coursecatalog",
215: text=>"Select courses"});
216: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Select courses'));
217: }
1.2 raeburn 218: $r->print('<h3>'.&mt('Display information about official [_1] classes for which LON-CAPA courses have been created:',$domdesc).'</h3>');
1.7 raeburn 219: $r->print('<form name="coursecatalog" method="post">');
1.1 raeburn 220: if ($numtitles > 0) {
1.18 ! raeburn 221: $r->print(&mt('<b>Choose which course(s) to list.</b><br />'));
1.6 raeburn 222: $r->print('<table><tr>');
223: for (my $k=0; $k<$lasttitle-1; $k++) {
224: my @unsorted = @{$cat_items{$codetitles[$k]}};
225: my @items;
226: &Apache::courseclassifier::sort_cats($k,\%cat_order,\@codetitles,\@unsorted,\@items);
227: my @longitems;
228: if (defined($cat_titles{$codetitles[$k]})) {
229: foreach my $item (@items) {
230: push(@longitems,$cat_titles{$codetitles[$k]}{$item});
231: }
1.1 raeburn 232: } else {
1.6 raeburn 233: @longitems = @items;
1.1 raeburn 234: }
1.6 raeburn 235: $r->print('<td align="center">'.$codetitles[$k].'<br />'."\n".
236: '<select name="'.$codetitles[$k].'" onChange="courseSet()"');
237: $r->print('>'."\n".'<option value="0" />All'."\n");
238: for (my $i=0; $i<@items; $i++) {
1.1 raeburn 239: if ($longitems[$i] eq '') {
240: $longitems[$i] = $items[$i];
241: }
1.6 raeburn 242: $r->print(' <option value="'.$items[$i].'">'.$longitems[$i].'</option>');
1.1 raeburn 243: }
1.6 raeburn 244: $r->print('</select></td>');
1.1 raeburn 245: }
1.6 raeburn 246: $r->print('<td align="center">'.$codetitles[$lasttitle-1].'<br />'."\n".
247: '<select name="'.$codetitles[$lasttitle-1].'">'."\n".
248: '<option value="0">All'."\n".
249: '</option>'."\n".'</select>'."\n".
1.1 raeburn 250: '</td>'
251: );
1.16 raeburn 252: if (&user_is_dc($codedom)) {
253: my $showdetails_status;
254: if ($env{'form.showdetails'}) {
255: $showdetails_status = 'checked="checked" ';
256: }
257: $r->print('<td></td><td><input type="checkbox" name="showdetails" value="1" '.$showdetails_status.'/>'.&mt('Show full details for each course (DC only)').'</td>');
258: }
1.1 raeburn 259: $r->print('</tr></table>');
260: if ($numtitles > 4) {
1.6 raeburn 261: $r->print('<br /><br />'.$codetitles[$numtitles-1].'<br />'."\n".
262: '<input type="text" name="'.$codetitles[$numtitles-1].'" /><br />'."\n");
1.1 raeburn 263: }
1.18 ! raeburn 264: $r->print('<br />');
! 265: }
! 266: $r->print('<input type="hidden" name="coursenum" value="" /><input type="hidden" name="sortby" value="" /><input type="hidden" name="state" value="listing" />');
! 267: if ($numtitles > 0) {
! 268: $r->print('<input type="submit" name="catalogfilter" value="'.&mt('Display courses').'" />');
! 269: }
! 270: $r->print('</form>');
! 271: if (($numtitles > 0) && ($env{'form.state'} eq 'listing')) {
! 272: $r->print('<br /><br />');
1.1 raeburn 273: }
1.5 raeburn 274: } else {
275: $r->print(&Apache::loncommon::start_page('Course Catalog','',
276: {
277: 'no_inline_link' => 1,}));
278: $r->print('<br />'.&mt('No official courses to display for [_1].',$domdesc));
1.1 raeburn 279: }
1.18 ! raeburn 280: return $numtitles;
1.1 raeburn 281: }
282:
1.16 raeburn 283: sub user_is_dc {
284: my ($codedom) = @_;
285: if (exists($env{'user.role.dc./'.$codedom.'/'})) {
286: my $livedc = 1;
287: my $now = time;
288: my ($start,$end)=split(/\./,$env{'user.role.dc./'.$codedom.'/'});
289: if ($start && $start>$now) { $livedc = 0; }
290: if ($end && $end <$now) { $livedc = 0; }
291: return $livedc;
292: }
293: return;
294: }
1.7 raeburn 295:
1.6 raeburn 296: sub recurse_options {
297: my ($currkey,$currlist,$level,$cat,$cat_options,$data,$by_year,$by_sem,$by_dept) = @_;
298: if (ref($currlist) eq 'HASH') {
299: $level ++;
300: foreach my $key (sort(keys(%{$currlist}))) {
301: $$data[$level-1]= $key;
302: &recurse_options($key,$currlist->{$key},$level,$cat,$cat_options,$data,$by_year,$by_sem,$by_dept);
303: }
304: } else {
305: $level --;
306: my @contents = split(/","/,$currlist);
307: foreach my $item (@contents) {
308: if (!grep(/^\Q$item\E$/,@{$cat_options->{$cat}})) {
309: push(@{$cat_options->{$cat}},$item);
310: }
311: if ($level == 3) {
312: if (!grep/^\Q$item\E$/,@{$by_year->{$data->[1]}->{$currkey}}) {
313: push(@{$by_year->{$data->[1]}->{$currkey}},$item);
314: }
315: if (!grep/^\Q$item\E$/,@{$by_sem->{$data->[2]}->{$currkey}}) {
316: push(@{$by_sem->{$data->[2]}->{$currkey}},$item);
317: }
318: if (!grep/^\Q$item\E$/,@{$by_dept->{$currkey}}) {
319: push(@{$by_dept->{$currkey}},$item);
320: }
321:
322: }
323: }
324: }
325: return $level;
326: }
327:
328: sub build_javascript {
329: my ($by_year,$by_sem,$by_dept,$cat_order,$codetitles) = @_;
330: my @unsorted = keys(%{$by_year});
331: my @sorted_yrs;
332: &Apache::courseclassifier::sort_cats('0',$cat_order,$codetitles,\@unsorted,\@sorted_yrs);
333: my $output = 'var idcse_by_yr_year = new Array("'.join('","',@sorted_yrs).'");'."\n".
334: 'var idcse_by_yr_dept = new Array('.scalar(@sorted_yrs).');'."\n".
335: 'var idcse_by_yr_num = new Array('.scalar(@sorted_yrs).');'."\n";
336: for (my $i=0; $i<@sorted_yrs; $i++) {
337: my $numkeys = keys(%{$by_year->{$sorted_yrs[$i]}});
338: $output .= " idcse_by_yr_num[$i] = new Array($numkeys);\n";
339: if (ref($by_year->{$sorted_yrs[$i]}) eq 'HASH') {
340: @unsorted = keys(%{$by_year->{$sorted_yrs[$i]}});
341: my @sorted_depts;
342: &Apache::courseclassifier::sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_depts);
343: $output .= qq| idcse_by_yr_dept[$i] = new Array ("|.join('","',@sorted_depts).'");'."\n";
344: for (my $j=0; $j<@sorted_depts; $j++) {
345: $output .= qq| idcse_by_yr_num[$i][$j] = new Array ("|;
346: $output .= join('","',sort(@{$by_year->{$sorted_yrs[$i]}->{$sorted_depts[$j]}})).'");'."\n";
347: }
348: }
349: }
350: @unsorted = keys(%{$by_sem});
351: my @sorted_sems;
352: &Apache::courseclassifier::sort_cats('1',$cat_order,$codetitles,\@unsorted,\@sorted_sems);
353: $output .= 'idcse_by_sem_sems = new Array("'.join('","',@sorted_sems).'");'."\n".
354: 'idcse_by_sem_dept = new Array('.scalar(@sorted_sems).');'."\n".
355: 'idcse_by_sem_num = new Array('.scalar(@sorted_sems).');'."\n";
356: for (my $i=0; $i<@sorted_sems; $i++) {
357: my $numkeys = keys(%{$by_sem->{$sorted_sems[$i]}});
358: $output .= " idcse_by_sem_num[$i] = new Array($numkeys);\n";
359: if (ref($by_sem->{$sorted_sems[$i]}) eq 'HASH') {
360: @unsorted = keys(%{$by_sem->{$sorted_sems[$i]}});
361: my @sorted_depts;
362: &Apache::courseclassifier::sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_depts);
363: $output .= qq| idcse_by_sem_dept[$i] = new Array("|.join('","',@sorted_depts).'");'."\n";
364: for (my $j=0; $j<@sorted_depts; $j++) {
365: $output .= qq| idcse_by_sem_num[$i][$j] = new Array ("|.join('","',sort(@{$by_sem->{$sorted_sems[$i]}->{$sorted_depts[$j]}})).'");'."\n";
366: }
367: }
368: }
369: @unsorted = keys(%{$by_dept});
370: my @sorted_deps;
371: &Apache::courseclassifier::sort_cats('2',$cat_order,$codetitles,\@unsorted,\@sorted_deps);
372: $output .= 'idcse_by_dep = new Array('.scalar(@sorted_deps).');'."\n";
373: for (my $k=0; $k<@sorted_deps; $k++) {
374: $output .= qq| idcse_by_dep[$k] = new Array ("|.join('","',sort(@{$by_dept->{$sorted_deps[$k]}})).'");'."\n";
375: }
376: return $output;
377: }
378:
1.7 raeburn 379: sub search_courselist {
1.18 ! raeburn 380: my ($domain,$numtitles) = @_;
! 381: my $instcode;
! 382: if (defined($numtitles) && $numtitles == 0) {
! 383: $instcode = '.+';
! 384: } else {
! 385: my (%codedefaults,@code_order);
! 386: my $defaults_result =
! 387: &Apache::lonnet::auto_instcode_defaults($domain,\%codedefaults,
! 388: \@code_order);
! 389: if ($defaults_result eq 'ok') {
! 390: $instcode ='^';
! 391: foreach my $item (@code_order) {
! 392: if ($env{'form.'.$item} eq '0' ) {
! 393: $instcode .= $codedefaults{$item};
! 394: } else {
! 395: $instcode .= $env{'form.'.$item};
! 396: }
1.7 raeburn 397: }
1.18 ! raeburn 398: $instcode .= '$';
! 399: } else {
! 400: $instcode = '.';
1.7 raeburn 401: }
402: }
403: my %courses = &Apache::lonnet::courseiddump($domain,'.',1,$instcode,'.','.',
404: undef,undef,'Course',1);
405: return %courses;
406: }
407:
1.6 raeburn 408:
1.1 raeburn 409: sub print_course_listing {
1.18 ! raeburn 410: my ($domain,$numtitles) = @_;
1.1 raeburn 411: my $output;
1.7 raeburn 412: my %courses;
1.15 raeburn 413: my $knownuser = &user_is_known();
1.16 raeburn 414: my $details = $env{'form.coursenum'};
415: if (&user_is_dc($domain)) {
416: if ($env{'form.showdetails'}) {
417: $details = 1;
418: }
419: }
1.7 raeburn 420: if ($env{'form.coursenum'} ne '') {
421: %courses = &Apache::lonnet::courseiddump($domain,'.',1,'.','.',
422: $env{'form.coursenum'},
423: undef,undef,'Course');
424: if (keys(%courses) == 0) {
425: $output .= &mt('The courseID provided does not match a course in this domain.');
426: return $output;
427: }
1.6 raeburn 428: } else {
1.18 ! raeburn 429: %courses = &search_courselist($domain,$numtitles);
1.7 raeburn 430: if (keys(%courses) == 0) {
431: $output = &mt('No courses match the criteria you selected.');
432: return $output;
433: }
1.16 raeburn 434: if ($knownuser && !$env{'form.showdetails'}) {
1.8 raeburn 435: $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 />');
436: }
1.7 raeburn 437: }
1.16 raeburn 438: $output .= &construct_data_table($knownuser,\%courses,$details);
439: $output .= &Apache::lonhtmlcommon::echo_form_input(['coursenum','state','catalogfilter','sortby','showdetails']);
1.15 raeburn 440: return $output;
441: }
442:
443: sub construct_data_table {
444: my ($knownuser,$courses,$details,$usersections) = @_;
1.7 raeburn 445: my %sortname;
1.16 raeburn 446: if (($details eq '') || ($env{'form.showdetails'})) {
1.7 raeburn 447: $sortname{'Code'} = 'code';
448: $sortname{'Title'} = 'title';
449: $sortname{'Owner'} = 'owner';
450: }
1.15 raeburn 451: my $output = &Apache::loncommon::start_data_table().
452: &Apache::loncommon::start_data_table_header_row();
453: my @coltitles = ('Code','Sections','Crosslisted','Title','Owner');
454: if (ref($usersections) eq 'HASH') {
455: $coltitles[1] = 'Your Section';
456: }
1.7 raeburn 457: foreach my $item (@coltitles) {
458: $output .= '<th>';
459: if (defined($sortname{$item})) {
460: $output .= '<a href="javascript:changeSort('."'$sortname{$item}'".')">'.&mt($item).'</a>';
461: } else {
462: $output .= &mt($item);
463: }
464: $output .= '</th>';
1.1 raeburn 465: }
1.15 raeburn 466: if ($knownuser) {
467: if ($details) {
1.8 raeburn 468: $output .=
1.7 raeburn 469: '<th>'.&mt('Default Access Dates for Students').'</th>'.
470: '<th>'.&mt('Student Counts').'</th>'.
471: '<th>'.&mt('Auto-enrollment of <br />registered students').'</th>';
1.15 raeburn 472: } else {
473: $output .= '<th> </th>';
1.8 raeburn 474: }
1.1 raeburn 475: }
1.7 raeburn 476: &Apache::loncommon::end_data_table_header_row();
1.15 raeburn 477: my %courseinfo = &build_courseinfo_hash($courses,$knownuser,$details,
478: $usersections);
1.7 raeburn 479: my %Sortby;
1.15 raeburn 480: foreach my $course (sort(keys(%{$courses}))) {
1.7 raeburn 481: if ($env{'form.sortby'} eq 'code') {
482: push(@{$Sortby{$courseinfo{$course}{'code'}}},$course);
483: } elsif ($env{'form.sortby'} eq 'owner') {
484: push(@{$Sortby{$courseinfo{$course}{'ownerlastname'}}},$course);
485: } else {
486: push(@{$Sortby{$courseinfo{$course}{'title'}}},$course);
487: }
488: }
489: my @sorted_courses;
490: if (($env{'form.sortby'} eq 'code') || ($env{'form.sortby'} eq 'owner')) {
491: @sorted_courses = sort(keys(%Sortby));
1.6 raeburn 492: } else {
1.7 raeburn 493: @sorted_courses = sort { lc($a) cmp lc($b) } (keys(%Sortby));
1.1 raeburn 494: }
1.7 raeburn 495: foreach my $item (@sorted_courses) {
496: foreach my $course (@{$Sortby{$item}}) {
497: $output.=&Apache::loncommon::start_data_table_row();
1.15 raeburn 498: $output.=&courseinfo_row($courseinfo{$course},$knownuser,$details);
1.7 raeburn 499: $output.=&Apache::loncommon::end_data_table_row();
500: }
1.1 raeburn 501: }
1.7 raeburn 502: $output .= &Apache::loncommon::end_data_table();
503: return $output;
504: }
505:
506: sub build_courseinfo_hash {
1.15 raeburn 507: my ($courses,$knownuser,$details,$usersections) = @_;
1.1 raeburn 508: my %courseinfo;
1.7 raeburn 509: my $now = time;
1.15 raeburn 510: foreach my $course (keys(%{$courses})) {
1.1 raeburn 511: my $descr;
1.15 raeburn 512: if ($courses->{$course} =~ m/^([^:]*):/i) {
1.1 raeburn 513: $descr = &unescape($1);
514: } else {
1.15 raeburn 515: $descr = &unescape($courses->{$course});
1.1 raeburn 516: }
517: my $cleandesc=&HTML::Entities::encode($descr,'<>&"');
518: $cleandesc=~s/'/\\'/g;
1.10 raeburn 519: $cleandesc =~ s/^\s+//;
1.1 raeburn 520: my ($cdom,$cnum)=split(/\_/,$course);
1.7 raeburn 521:
1.15 raeburn 522: my ($desc,$instcode,$owner,$ttype) = split(/:/,$courses->{$course});
1.1 raeburn 523: $owner = &unescape($owner);
524: my ($ownername,$ownerdom);
525: if ($owner =~ /:/) {
526: ($ownername,$ownerdom) = split(/:/,$owner);
527: } else {
528: $ownername = $owner;
529: if ($owner ne '') {
530: $ownerdom = $cdom;
531: }
532: }
533: my %ownernames;
534: if ($ownername ne '' && $ownerdom ne '') {
535: %ownernames = &Apache::loncommon::getnames($ownername,$ownerdom);
536: }
537: $courseinfo{$course}{'cdom'} = $cdom;
538: $courseinfo{$course}{'cnum'} = $cnum;
539: $courseinfo{$course}{'code'} = $instcode;
540: $courseinfo{$course}{'ownerlastname'} = $ownernames{'lastname'};
541: $courseinfo{$course}{'title'} = $cleandesc;
1.7 raeburn 542: $courseinfo{$course}{'owner'} = $owner;
543:
544: my %coursehash = &Apache::lonnet::dump('environment',$cdom,$cnum);
545: my @classids;
546: my @crosslistings;
1.15 raeburn 547: my ($seclist,$numsec) =
548: &identify_sections($coursehash{'internal.sectionnums'});
549: if (ref($usersections) eq 'HASH') {
550: if (ref($usersections->{$course}) eq 'ARRAY') {
551: $seclist = join(', ',@{$usersections->{$course}});
552: }
553: }
1.7 raeburn 554: $courseinfo{$course}{'seclist'} = $seclist;
1.15 raeburn 555: my ($xlist_items,$numxlist) =
556: &identify_sections($coursehash{'internal.crosslistings'});
1.7 raeburn 557: my $showsyllabus = 1; # default is to include a syllabus link
558: if (defined($coursehash{'showsyllabus'})) {
559: $showsyllabus = $coursehash{'showsyllabus'};
560: }
561: $courseinfo{$course}{'showsyllabus'} = $showsyllabus;
1.15 raeburn 562: if (((defined($env{'form.coursenum'}) && ($cnum eq $env{'form.coursenum'}))) ||
563: ($knownuser && ($details == 1))) {
564: $courseinfo{$course}{'counts'} = &count_students($cdom,$cnum,$numsec);
565: $courseinfo{$course}{'autoenrollment'} =
566: &autoenroll_info(\%coursehash,$now,$seclist,$xlist_items,
567: $instcode,$owner,$cdom,$cnum);
568:
569: my $startaccess = '';
570: my $endaccess = '';
571: my $accessdates;
572: if ( defined($coursehash{'default_enrollment_start_date'}) ) {
573: $startaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_start_date'});
574: }
575: if ( defined($coursehash{'default_enrollment_end_date'}) ) {
576: $endaccess = &Apache::lonlocal::locallocaltime($coursehash{'default_enrollment_end_date'});
577: if ($coursehash{'default_enrollment_end_date'} == 0) {
578: $endaccess = "No ending date";
579: }
580: }
581: if ($startaccess) {
582: $accessdates .= &mt('<i>From:</i> ').$startaccess.'<br />';
1.7 raeburn 583: }
1.15 raeburn 584: if ($endaccess) {
585: $accessdates .= &mt('<i>To:</i> ').$endaccess.'<br />';
586: }
587: $courseinfo{$course}{'access'} = $accessdates;
1.1 raeburn 588: }
1.7 raeburn 589: if ($xlist_items eq '') {
590: $xlist_items = &mt('No');
1.1 raeburn 591: }
1.7 raeburn 592: $courseinfo{$course}{'xlist'} = $xlist_items;
1.1 raeburn 593: }
1.7 raeburn 594: return %courseinfo;
1.1 raeburn 595: }
596:
1.7 raeburn 597: sub count_students {
1.15 raeburn 598: my ($cdom,$cnum,$numsec) = @_;
1.1 raeburn 599: my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cnum);
1.7 raeburn 600: my %student_count = (
601: Active => 0,
602: Future => 0,
603: Expired => 0,
604: );
1.1 raeburn 605: my %idx;
606: $idx{'status'} = &Apache::loncoursedata::CL_STATUS();
1.4 albertel 607: my %status_title = &Apache::lonlocal::texthash(
1.1 raeburn 608: Expired => 'Previous access',
609: Active => 'Current access',
610: Future => 'Future access',
611: );
1.7 raeburn 612:
1.4 albertel 613: while (my ($student,$data) = each(%$classlist)) {
1.1 raeburn 614: $student_count{$data->[$idx{'status'}]} ++;
615: }
1.7 raeburn 616:
1.15 raeburn 617: my $countslist = &mt('[quant,_1,section]',$numsec).':<br />';
1.7 raeburn 618: foreach my $status ('Active','Future') {
1.1 raeburn 619: $countslist .= '<nobr>'.$status_title{$status}.': '.
620: $student_count{$status}.'</nobr><br />';
621: }
1.7 raeburn 622: return $countslist;
623: }
624:
625: sub courseinfo_row {
1.15 raeburn 626: my ($info,$knownuser,$details) = @_;
1.7 raeburn 627: my ($cdom,$cnum,$title,$ownerlast,$code,$owner,$seclist,$xlist_items,
628: $accessdates,$showsyllabus,$counts,$autoenrollment,$output);
629: if (ref($info) eq 'HASH') {
630: $cdom = $info->{'cdom'};
631: $cnum = $info->{'cnum'};
632: $title = $info->{'title'};
633: $ownerlast = $info->{'ownerlastname'};
634: $code = $info->{'code'};
635: $owner = $info->{'owner'};
636: $seclist = $info->{'seclist'};
637: $xlist_items = $info->{'xlist'};
638: $accessdates = $info->{'access'};
639: $counts = $info->{'counts'};
640: $autoenrollment = $info->{'autoenrollment'};
641: $showsyllabus = $info->{'showsyllabus'};
642: } else {
643: $output = '<td colspan="8">'.&mt('No information available for [_1].',
644: $code).'</td>';
645: return $output;
1.2 raeburn 646: }
1.7 raeburn 647: $output .= '<td>'.$code.'</td>'.
648: '<td>'.$seclist.'</td>'.
649: '<td>'.$xlist_items.'</td>'.
650: '<td>'.$title.' <font size="-2">';
1.2 raeburn 651: if ($showsyllabus) {
652: $output .= &Apache::loncommon::syllabuswrapper(&mt('Syllabus'),$cnum,$cdom);
1.7 raeburn 653: } else {
654: $output .= ' ';
1.2 raeburn 655: }
656: $output .= '</font></td>'.
1.7 raeburn 657: '<td>'.$ownerlast.'</td>';
1.15 raeburn 658: if ($knownuser) {
659: if ($details) {
1.8 raeburn 660: $output .=
1.7 raeburn 661: '<td>'.$accessdates.'</td>'.
662: '<td>'.$counts.'</td>'.
663: '<td>'.$autoenrollment.'</td>';
1.15 raeburn 664: } else {
665: $output .= "<td><a href=\"javascript:setCourseId('$cnum')\">".&mt('Show more details').'</a></td>';
1.8 raeburn 666: }
1.7 raeburn 667: }
1.1 raeburn 668: return $output;
669: }
670:
671: sub identify_sections {
672: my ($seclist) = @_;
673: my @secnums;
674: if ($seclist =~ /,/) {
1.4 albertel 675: my @sections = split(/,/,$seclist);
1.1 raeburn 676: foreach my $sec (@sections) {
677: $sec =~ s/:[^:]*$//;
678: push(@secnums,$sec);
679: }
680: } else {
681: if ($seclist =~ m/^([^:]+):/) {
682: my $sec = $1;
1.4 albertel 683: if (!grep(/^\Q$sec\E$/,@secnums)) {
684: push(@secnums,$sec);
1.1 raeburn 685: }
686: }
687: }
688: @secnums = sort {$a <=> $b} @secnums;
689: my $seclist = join(', ',@secnums);
1.15 raeburn 690: my $numsec = @secnums;
691: return ($seclist,$numsec);
1.1 raeburn 692: }
693:
1.2 raeburn 694: sub get_valid_classes {
695: my ($seclist,$xlist_items,$crscode,$owner,$cdom,$cnum) = @_;
696: my $response;
697: my %validations;
698: @{$validations{'sections'}} = ();
699: @{$validations{'xlists'}} = ();
700: my $totalitems = 0;
701: if ($seclist) {
1.13 raeburn 702: foreach my $sec (split(/, /,$seclist)) {
1.2 raeburn 703: my $class = $crscode.$sec;
1.3 albertel 704: if (&Apache::lonnet::auto_validate_class_sec($cdom,$cnum,$owner,
705: $class) eq 'ok') {
1.2 raeburn 706: if (!grep(/^\Q$sec$\E/,@{$validations{'sections'}})) {
1.4 albertel 707: push(@{$validations{'sections'}},$sec);
1.2 raeburn 708: $totalitems ++;
709: }
710: }
711: }
712: }
713: if ($xlist_items) {
1.13 raeburn 714: foreach my $item (split(/, /,$xlist_items)) {
1.3 albertel 715: if (&Apache::lonnet::auto_validate_class_sec($cdom,$cnum,$owner,
716: $item) eq 'ok') {
1.2 raeburn 717: if (!grep(/^\Q$item$\E/,@{$validations{'xlists'}})) {
1.4 albertel 718: push(@{$validations{'xlists'}},$item);
1.2 raeburn 719: $totalitems ++;
720: }
721: }
722: }
723: }
724: if ($totalitems > 0) {
725: if (@{$validations{'sections'}}) {
726: $response = &mt('Sections: ').
1.14 raeburn 727: join(', ',@{$validations{'sections'}}).'<br />';
1.2 raeburn 728: }
729: if (@{$validations{'xlists'}}) {
730: $response .= &mt('Courses: ').
1.14 raeburn 731: join(', ',@{$validations{'xlists'}});
1.2 raeburn 732: }
733: }
734: return $response;
735: }
736:
1.6 raeburn 737: sub javascript_select_filler {
738: my ($formname,$scripttext,$codetitles,$longtitles_str,$allidlist) = @_;
739: my $output = <<END;
740: function courseSet() {
741: var longtitles = new Array ("$longtitles_str");
742: var valyr = document.$formname.Year.options[document.$formname.Year.selectedIndex].value
743: var valsem = document.$formname.Semester.options[document.$formname.Semester.selectedIndex].value
744: var valdept = document.$formname.Department.options[document.$formname.Department.selectedIndex].value
745: var valclass = document.$formname.Number.options[document.$formname.Number.selectedIndex].value
746: var idyears = new Array("$allidlist");
747: var idyr = -1;
748: var idsem = -1;
749: var iddept = -1;
750: document.$formname.Number.length = 0;
751:
752: $scripttext
753:
754: selYear = document.$formname.Year.selectedIndex-1;
755: selSemester = document.$formname.Semester.selectedIndex-1;
756: selDepartment = document.$formname.Department.selectedIndex-1;
757: if (selYear == -1) {
758: if (selSemester == -1) {
759: if (selDepartment > -1) {
760: document.$formname.Number.options[0] = new Option('All','0',false,false);
761: for (var k=0; k<idcse_by_dep[selDepartment].length; k++) {
762: document.$formname.Number.options[k+1] = new Option(idcse_by_dep[selDepartment][k],idcse_by_dep[selDepartment][k],false,false);
763:
764: }
765: }
766: else {
767: document.$formname.Number.options[0] = new Option("All","0",true,true);
768: }
769: }
770: else {
771: if (selDepartment > -1) {
772: for (var i=0; i<idcse_by_sem_sems.length; i++) {
773: if (idcse_by_sem_sems[i] == valsem) {
774: idsem = i;
775: }
776: }
777: if (idsem != -1) {
778: for (var i=0; i<idcse_by_sem_dept[idsem].length; i++) {
779: if (idcse_by_sem_dept[idsem][i] == valdept) {
780: iddept = i;
781: }
782: }
783: }
784: if (iddept != -1) {
785: document.$formname.Number.options[0] = new Option('All','0',false,false);
786: for (var k=0; k<idcse_by_sem_num[idsem][iddept].length; k++) {
787: document.$formname.Number.options[k+1] = new Option(idcse_by_sem_num[idsem][iddept][k],idcse_by_sem_num[idsem][iddept][k],false,false);
788: }
789: }
790: else {
791: document.$formname.Number.options[0] = new Option('No courses','0',true,true);
792: }
793: }
794: else {
795: document.$formname.Number.options[0] = new Option("All","0",true,true);
796: }
797: }
798: }
799: else {
800: if (selSemester == -1) {
801: if (selDepartment > -1) {
802: for (var i=0; i<idcse_by_yr_year.length; i++) {
803: if (idcse_by_yr_year[i] == valyr) {
804: idyr = i;
805: }
806: }
807: if (idyr != -1) {
808: for (var i=0; i<idcse_by_yr_dept[idyr].length; i++) {
809: if (idcse_by_yr_dept[idyr][i] == valdept) {
810: iddept = i;
811: }
812: }
813: }
814: if (iddept != -1) {
815: document.$formname.Number.options[0] = new Option('All','0',false,false);
816: for (var k=0; k<idcse_by_yr_num[idyr][iddept].length; k++) {
817: document.$formname.Number.options[k+1] = new Option(idcse_by_yr_num[idyr][iddept][k],idcse_by_yr_num[idyr][iddept][k],false,false);
818: }
819: }
820: else {
821: document.$formname.Number.options[0] = new Option('No courses','0',true,true);
822: }
823: }
824: else {
825: document.$formname.Number.options[0] = new Option("All","0",true,true);
826: }
827: }
828: else {
1.9 raeburn 829: if (selDepartment > -1) {
830: for (var k=0; k<idyears.length; k++) {
831: if (idyears[k] == valyr) {
832: idyr = k;
833: }
1.6 raeburn 834: }
1.9 raeburn 835: if (idyr != -1) {
836: for (var k=0; k<idsems[idyr].length; k++) {
837: if (idsems[idyr][k] == valsem) {
838: idsem = k;
839: }
1.6 raeburn 840: }
841: }
1.9 raeburn 842: if (idsem != -1) {
843: for (var k=0; k<idcodes[idyr][idsem].length; k++) {
844: if (idcodes[idyr][idsem][k] == valdept) {
845: iddept = k;
846: }
1.6 raeburn 847: }
848: }
1.9 raeburn 849: if (iddept != -1) {
850: document.$formname.Number.options[0] = new Option('All','0',false,false);
851: for (var i=0; i<idcourses[idyr][idsem][iddept].length; i++) {
852: var display = idcourses[idyr][idsem][iddept][i];
853: if (longtitles[3] == 1) {
854: if (idcourseslongs[idyr][idsem][iddept][i] != "") {
855: display = idcourseslongs[idyr][idsem][iddept][i]
856: }
1.6 raeburn 857: }
1.9 raeburn 858: document.$formname.Number.options[i+1] = new Option(display,idcourses[idyr][idsem][iddept][i],false,false)
1.6 raeburn 859: }
1.9 raeburn 860: }
861: else {
862: document.$formname.Number.options[0] = new Option('No courses','0',true,true);
1.6 raeburn 863: }
1.9 raeburn 864: }
1.6 raeburn 865: else {
1.9 raeburn 866: document.$formname.Number.options[0] = new Option('All','0',true,true);
1.6 raeburn 867: }
868: }
869: document.$formname.Number.selectedIndex = 0
870: }
871: }
872: END
873: return $output;
874: }
1.1 raeburn 875:
1.7 raeburn 876: sub autoenroll_info {
877: my ($coursehash,$now,$seclist,$xlist_items,$code,$owner,$cdom,$cnum) = @_;
878: my $autoenrolldates = &mt('Not enabled');
879: if (defined($coursehash->{'internal.autoadds'}) && $coursehash->{'internal.autoadds'} == 1) {
880: my ($autostart,$autoend);
881: if ( defined($coursehash->{'internal.autostart'}) ) {
882: $autostart = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autostart'});
883: }
884: if ( defined($coursehash->{'internal.autoend'}) ) {
885: $autoend = &Apache::lonlocal::locallocaltime($coursehash->{'internal.autoend'});
886: }
887: if ($coursehash->{'internal.autostart'} > $now) {
888: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
889: $autoenrolldates = &mt('Not enabled');
890: } else {
891: my $valid_classes =
892: &get_valid_classes($seclist,$xlist_items,$code,
893: $owner,$cdom,$cnum);
894: if ($valid_classes ne '') {
895: $autoenrolldates = &mt('Not enabled<br />Starts: ').
896: $autostart.'<br />'.$valid_classes; }
897: }
898: } else {
899: if ($coursehash->{'internal.autoend'} && $coursehash->{'internal.autoend'} < $now) {
900: $autoenrolldates = &mt('Not enabled<br />Ended: ').$autoend;
901: } else {
902: my $valid_classes = &get_valid_classes($seclist,$xlist_items,
903: $code,$owner,$cdom,$cnum);
904: if ($valid_classes ne '') {
905: $autoenrolldates = &mt('Currently enabled<br />').
906: $valid_classes;
907: }
908: }
909: }
910: }
911: return $autoenrolldates;
912: }
913:
1.8 raeburn 914: sub user_is_known {
915: my $known = 0;
916: if ($env{'user.name'} ne '' && $env{'user.name'} ne 'public'
917: && $env{'user.domain'} ne '' && $env{'user.domain'} ne 'public') {
918: $known = 1;
919: }
920: return $known;
921: }
922:
1.1 raeburn 923: 1;
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