1: # The LearningOnline Network with CAPA
2: # Handler to display the classlist
3: #
4: # $Id: lonviewclasslist.pm,v 1.16 2014/10/26 15:20:25 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: ##############################################################
30:
31: package Apache::lonviewclasslist;
32:
33: use strict;
34: use Apache::loncoursedata();
35: use Apache::loncommon();
36: use Apache::lonhtmlcommon();
37: use Apache::courseprefs();
38: use Apache::Constants qw(:common :http REDIRECT);
39: use Apache::lonlocal;
40: use Apache::lonnet;
41:
42:
43: ###################################################################
44: ###################################################################
45:
46: =pod
47:
48: =item &handler
49:
50: The typical handler you see in all these modules. Takes $r, the
51: http request, as an argument.
52:
53: =cut
54:
55: ###################################################################
56: ###################################################################
57: sub handler {
58: my $r=shift;
59: if ($r->header_only) {
60: &Apache::loncommon::content_type($r,'text/html');
61: $r->send_http_header;
62: return OK;
63: }
64: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
65: ['register','forceedit','action','symb','todocs']);
66: if (! ($env{'request.course.fn'})) {
67: $env{'user.error.msg'}=
68: "/adm/viewclasslist:not in course role";
69: return HTTP_NOT_ACCEPTABLE;
70: }
71: &Apache::loncommon::content_type($r,'text/html');
72: $r->send_http_header;
73: #
74: my $start_page;
75: if ($env{'form.register'}) {
76: $start_page = &Apache::loncommon::start_page('Classlist',undef,
77: {'force_register' => $env{'form.register'}});
78: } else {
79: my $brcrum = [{'href' => 'adm/viewclasslist',
80: 'text' => 'View Classlist'},];
81: $start_page = &Apache::loncommon::start_page('Classlist',undef,
82: {'bread_crumbs' => $brcrum});
83: }
84: $r->print(<<ENDHEADER);
85: $start_page
86: ENDHEADER
87:
88: # Get classlist view settings
89: my %viewsettings = &retrieve_view_settings();
90: my $crstype = &Apache::loncommon::course_type();
91:
92: if (($env{'form.forceedit'}) || ($env{'form.action'} eq 'setconfig')) {
93: if (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) {
94: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
95: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
96: my $rosterprefs = &roster_prefs($crstype);
97: my $allitems = {};
98: if ($env{'form.action'} eq 'setconfig') {
99: my %values=&Apache::lonnet::dump('environment',$cdom,$cnum);
100: if (keys(%values) > 0) {
101: my ($numchanged,%changes,%disallowed);
102: my $prefs = {
103: classlists => $rosterprefs,
104: };
105: $changes{'classlists'} = {};
106: &Apache::courseprefs::process_changes($cdom,'classlists',\%values,
107: $rosterprefs,
108: $changes{'classlists'},
109: $allitems,\%disallowed,$crstype);
110: my $message;
111: if (keys(%{$changes{'classlists'}}) > 0) {
112: my $actions = ['classlists'];
113: $message =
114: &Apache::courseprefs::store_changes($cdom,$cnum,$actions,
115: $actions,$prefs,\%values,
116: \%changes,$crstype);
117: } else {
118: if ($crstype eq 'Community') {
119: $message = &mt('No changes made to community settings.');
120: } else {
121: $message = &mt('No changes made to course settings.');
122: }
123: }
124: $r->print(&Apache::loncommon::confirmwrapper($message));
125: } else {
126: $r->print('<div class="LC_info">'.
127: &mt('Unable to retrieve current settings.').'<br />'.
128: &mt('No changes saved.').
129: '</div>');
130: }
131: } else {
132: my $current = {};
133: my @settings = ('student_classlist_view','student_classlist_opt_in',
134: 'student_classlist_portfiles');
135: foreach my $setting (@settings) {
136: $current->{$setting} = $env{"course.$env{'request.course.id'}.$setting"};
137: }
138: my ($output,$rowtotal) =
139: &Apache::courseprefs::print_config_box($r,$cdom,'display',
140: 'viewableroster',
141: $rosterprefs,$current,
142: $allitems,$crstype);
143: if ($output) {
144: $r->print('<form method="post" name="display" action="/adm/viewclasslist">'."\n".
145: '<input type="hidden" name="action" value="setconfig" />'."\n".
146: '<input type="hidden" name="register" value="'.$env{'form.register'}.'" />'."\n".
147: '<input type="hidden" name="forceedit" value="'.$env{'form.forceedit'}.'" />'."\n");
148: if ($env{'form.symb'}) {
149: $r->print('<input type="hidden" name="symb" value="'.$env{'form.symb'}.'" />'."\n");
150: }
151: if ($env{'form.symb'}) {
152: $r->print('<input type="hidden" name="todocs" value="'.$env{'form.todocs'}.'" />'."\n");
153: }
154: $r->print('<div class="LC_left_float">'.
155: $output.
156: '</div><br clear="all" />'.
157: '<input type="submit" value="'.&mt('Save').'" />'.
158: '</form>');
159: } else {
160: $r->print('<div class="LC_info">');
161: if ($crstype eq 'Community') {
162: $r->print(&mt('No member-viewable community roster settings available.'));
163: } else {
164: $r->print(&mt('No student-viewable course roster settings available.'));
165: }
166: $r->print('</div>');
167: }
168: }
169: } else {
170: $r->print('<div class="LC_info">');
171: if ($crstype eq 'Community') {
172: $r->print(&mt('You do not have rights to modify member-viewable community roster settings.'));
173: } else {
174: $r->print(&mt('You do not have rights to modify student-viewable course roster settings.'));
175: }
176: $r->print('</div>');
177: }
178: } else {
179:
180: # Print classlist
181: if (keys(%viewsettings) > 0) {
182: $r->print(&html_classlist($r,$crstype,\%viewsettings));
183: } else {
184: $r->print('<div class="LC_info">');
185: if ($crstype eq 'Community') {
186: $r->print(&mt("Display of a member-viewable community roster is not currently enabled."));
187: } else {
188: $r->print(&mt("Display of a student-viewable course roster is not currently enabled."));
189: }
190: $r->print('</div>');
191: }
192: }
193: #
194: # Finish up
195: $r->print(&Apache::loncommon::end_page());
196: return OK;
197: }
198:
199: sub retrieve_view_settings {
200: my %viewsettings;
201: if (exists($env{'request.course.id'})) {
202: my $cid = $env{'request.course.id'};
203: my $viewpermission = 'course.'.$cid.'.student_classlist_view';
204: my $student_opt_in = 'course.'.$cid.'.student_classlist_opt_in';
205: my $portfiles_link = 'course.'.$cid.'.student_classlist_portfiles';
206: if (exists($env{$viewpermission}) &&
207: $env{$viewpermission} =~ /^(all|section)$/) {
208: $viewsettings{'permission'} = $env{$viewpermission};
209: if ($viewsettings{'permission'} =~ /^section$/i) {
210: $viewsettings{'limit_to_section'} = 1;
211: } else {
212: $viewsettings{'limit_to_section'} = 0;
213: }
214: $viewsettings{'student_opt_in'} = $env{$student_opt_in};
215: $viewsettings{'portfiles_link'} = $env{$portfiles_link};
216: }
217: }
218: return %viewsettings;
219: }
220:
221: sub roster_prefs {
222: my ($crstype) = @_;
223: my %lt;
224: if ($crstype eq 'Community') {
225: %lt = &Apache::lonlocal::texthash (
226: svrs => 'Member-viewable roster settings',
227: stuv => 'Member-viewable membership list options',
228: stul => 'Member agreement needed to be listed',
229: );
230: } else {
231: %lt = &Apache::lonlocal::texthash(
232: svrs => 'Student-viewable roster settings',
233: stuv => 'Student-viewable classlist options',
234: stul => 'Student agreement needed to be listed',
235: );
236: }
237: $lt{'incl'} = &mt('Include link to accessible portfolio files');
238:
239: return
240: { text => $lt{'svrs'},
241: header => [ {col1 => 'Setting',
242: col2 => $lt{'stuv'}}],
243: ordered => ['student_classlist_view',
244: 'student_classlist_opt_in',
245: 'student_classlist_portfiles'],
246: itemtext => {
247: student_classlist_view => $lt{'stuv'},
248: student_classlist_opt_in => $lt{'stul'},
249: student_classlist_portfiles => $lt{'incl'},
250: },
251: };
252: }
253:
254: sub html_classlist {
255: my ($r,$crstype,$viewsettings) = @_;
256: my ($Str,$title,$secdisplay,$cid,$cdom,$cnum,$listtype,%publicroster);
257: my $fullroster = &Apache::loncoursedata::get_classlist();
258: my $classlist;
259:
260: my $singular = 'student';
261: my $plural = 'students';
262: my $titleplural = 'Students';
263: my $heading = &mt('Student-viewable course roster');
264:
265: if ($crstype eq 'Community') {
266: $singular = 'member';
267: $plural = 'members';
268: $titleplural = 'Members';
269: $heading = &mt('Member-viewable community roster');
270: }
271:
272: if ($env{'form.action'} eq 'setenv') {
273: $Str .= &process_student_prefs();
274: }
275:
276: $Str .= '<h2>'.$heading.'</h2>';
277:
278: $cid = $env{'request.course.id'};
279: $cdom = $env{'course.'.$cid.'.domain'};
280: $cnum = $env{'course.'.$cid.'.num'};
281:
282: my $title;
283: if ($viewsettings->{'limit_to_section'}) {
284: if ($env{'request.course.sec'} eq '') {
285: $title = &mt($titleplural.' with no section');
286: $listtype = 'without a section';
287: } else {
288: $title = &mt($titleplural.' in section "[_1]"',
289: $env{'request.course.sec'});
290: $listtype = 'in the section';
291: $secdisplay = " ($env{'request.course.sec'}) ";
292: }
293: } else {
294: $title = &mt($titleplural.' in any section');
295: $listtype = 'in the course';
296: }
297:
298: if ($viewsettings->{'student_opt_in'}) {
299: if ($env{'request.role'} =~ /^st/) {
300: $Str .= &print_roster_form();
301: }
302: %publicroster = &Apache::lonnet::dump('publicroster',$cdom,$cnum);
303: }
304:
305: $Str .= '<h3>'.$title.'</h3>';
306:
307: my $fullcount = 0;
308: my $publiccount = 0;
309: my $displaycount = 0;
310: my $sectionidx = &Apache::loncoursedata::CL_SECTION();
311: my $statusidx = &Apache::loncoursedata::CL_STATUS();
312:
313: foreach my $student (keys(%{$fullroster})) {
314: my $section = $fullroster->{$student}->[$sectionidx];
315: my $status = $fullroster->{$student}->[$statusidx];
316: next if (lc($status) ne 'active');
317: if ($viewsettings->{'limit_to_section'}) {
318: next if ($section ne $env{'request.course.sec'});
319: }
320: $fullcount ++;
321: if ($viewsettings->{'student_opt_in'}) {
322: if ($publicroster{$student}) {
323: $classlist->{$student} = $fullroster->{$student};
324: $publiccount ++;
325: }
326: } else {
327: $classlist->{$student} = $fullroster->{$student};
328: }
329: }
330: if ($viewsettings->{'student_opt_in'}) {
331: $displaycount = $publiccount;
332: if ($fullcount > $publiccount) {
333: if ($publiccount) {
334: $Str .= &mt('Only '.$plural.' who have opted to be listed in the roster ([_1] out of [_2] '.$plural.') are shown.',$publiccount,$fullcount).'<br />';
335: } else {
336: if ($fullcount == 1) {
337: $Str .= &mt('The single '.$singular.' '.$listtype.'[_1] has opted not to be listed in the roster.',$secdisplay);
338: } else {
339: $Str .= &mt('None of the [_1] '.$plural.' '.$listtype.'[_2] have opted to be listed in the roster.',$fullcount,$secdisplay);
340: }
341: return $Str;
342: }
343: } else {
344: if ($fullcount > 1) {
345: $Str .= &mt('All [_1] '.$plural.' '.$listtype.'[_2] have opted to be listed in the roster.',$fullcount,$secdisplay);
346: } elsif ($fullcount == 1) {
347: $Str .= &mt('The single '.$singular.' '.$listtype.'[_1] has opted to be listed in the roster.',$secdisplay);
348: }
349: }
350: } else {
351: $displaycount = $fullcount;
352: if ($fullcount > 1) {
353: $Str .= &mt('All [_1] '.$plural.' '.$listtype.'[_2] are listed in the roster.',$fullcount,$secdisplay);
354: } elsif ($fullcount == 1) {
355: $Str .= &mt('There is only a single '.$singular.' '.$listtype.'[_1]',$secdisplay);
356: }
357: }
358: undef($fullroster);
359:
360: if (!$displaycount) {
361: $Str .= &mt('There are currently no '.$plural.' to display.');
362: return $Str;
363: }
364:
365: # Set up a couple variables.
366: my $usernameidx = &Apache::loncoursedata::CL_SNAME();
367: my $domainidx = &Apache::loncoursedata::CL_SDOM();
368: my $fullnameidx = &Apache::loncoursedata::CL_FULLNAME();
369:
370: # Sort the students
371: my $sortby = $fullnameidx;
372: my @Sorted_Students = sort {
373: lc($classlist->{$a}->[$sortby]) cmp lc($classlist->{$b}->[$sortby])
374: } (keys(%$classlist));
375: $Str .= '<br />'.&Apache::loncommon::start_data_table()."\n".
376: &Apache::loncommon::start_data_table_header_row()."\n".
377: '<th></th>'. # for the count
378: '<th>'.&mt('Name').'</th>'.
379: '<th>'.&mt('Username').'</th>';
380: if (! $viewsettings->{'limit_to_section'}) {
381: $Str .= '<th>'.&mt('Section').'</th>';
382: }
383: if ($viewsettings->{'portfiles_link'}) {
384: $Str .= '<th>'.&mt('Available Portfolio files').'</th>';
385: }
386: $Str .= &Apache::loncommon::end_data_table_header_row();
387: my $count ++;
388: foreach my $student (@Sorted_Students) {
389: my $username = $classlist->{$student}->[$usernameidx];
390: my $domain = $classlist->{$student}->[$domainidx];
391: my $fullname = $classlist->{$student}->[$fullnameidx];
392: if ($fullname =~ /^\s*$/) {
393: $fullname = &mt('Name not given');
394: }
395: my $section = $classlist->{$student}->[$sectionidx];
396: if ($section eq '') {
397: $section = &mt('none');
398: }
399: $Str .= &Apache::loncommon::start_data_table_row()."\n".
400: '<td>'.$count++.'</td>'.
401: '<td>'.&Apache::loncommon::aboutmewrapper($fullname,
402: $username,
403: $domain).'</td>'.
404: '<td>'.(' 'x2).
405: &Apache::loncommon::messagewrapper
406: ('<img src="/adm/lonIcons/mailto.gif" border="0" /> '.
407: $username.':'.$domain,$username,$domain).'</td>';
408: if (! $viewsettings->{'limit_to_section'}) {
409: $Str .= '<td>'.$section.'</td>';
410: }
411: if ($viewsettings->{'portfiles_link'}) {
412: my $filecounts = &Apache::lonaboutme::portfolio_files($r,'showlink',undef,undef,$domain,$username,$fullname);
413: my $link;
414: if (ref($filecounts) eq 'HASH') {
415: $link = &mt('[quant,_1,file,files,No files]',$filecounts->{'both'});
416: if ($filecounts->{'both'} > 0) {
417: $link = '<a href="/adm/'.$domain.'/'.$username.'/aboutme/portfolio?classlist">'.$link.'</a>';
418: }
419: } else {
420: $link = '<span class="LC_error">'.&mt("Error retrieving file information.").'</span>';
421: }
422: $Str .= '<td>'.$link.'</td>';
423: }
424: $Str .= &Apache::loncommon::end_data_table_row()."\n";
425: }
426: $Str .= &Apache::loncommon::end_data_table();
427: return $Str;
428: }
429:
430: sub print_roster_form {
431: my $cid = $env{'request.course.id'};
432: my $showinroster = $env{'environment.internal.'.$cid.'.showinroster'};
433: my ($showoff,$showon);
434: if ($showinroster) {
435: $showon = ' checked="checked" ';
436: $showoff = ' ';
437: } else {
438: $showoff = ' checked="checked" ';
439: $showon = ' ';
440: }
441: my $output =
442: '<div class="LC_left_float">'
443: .'<fieldset><legend>'.&mt('Your roster setting').'</legend>';
444: if ($showinroster) {
445: $output .= &mt('You are currently listed in the student-viewable roster.');
446: } else {
447: $output .= &mt('You are currently [_1]not[_2] listed in the student-viewable roster.','<b>','</b>');
448: }
449: $output .= '<br />'.&mt('Include yourself in the roster?').' '.
450: '<form name="studentparm" method="post" action="">'.
451: '<span class="LC_nobreak"><label><input type="radio" name="showinroster" value="1"'.$showon.'/>'.&mt('Yes').'</label> <label>'.
452: '<input type="radio" name="showinroster" value="0"'.$showoff.'/>'.&mt('No').
453: '</label></span><br /><br />'.
454: '<input type="hidden" name="action" value="setenv" />'.
455: '<input type="submit" name="studentsubmit" value="'.&mt('Save').'" />'.
456: '</form></fieldset></div><br clear="all" />';
457: return $output;
458: }
459:
460: sub process_student_prefs {
461: my $cid = $env{'request.course.id'};
462: my $cdom = $env{'course.'.$cid.'.domain'};
463: my $cnum = $env{'course.'.$cid.'.num'};
464: my $uname = $env{'user.name'};
465: my $udom = $env{'user.domain'};
466: my $student = $uname.':'.$udom;
467: my %pubroster = &Apache::lonnet::get('publicroster',[$student],$cdom,$cnum);
468: my $visibility = &mt('off');
469: my $showinroster = $env{'form.showinroster'};
470: if ($showinroster) {
471: $visibility = &mt('on');
472: }
473: my $sturoster = 0;
474: if ($pubroster{$student}) {
475: $sturoster = 1;
476: }
477: my $output;
478: if ($sturoster ne $showinroster) {
479: my %changeHash = (
480: 'environment.internal.'.$cid.'.showinroster' => $showinroster,
481: );
482: my $putresult = &Apache::lonnet::put('environment',
483: \%changeHash,$udom,$uname);
484: if ($putresult eq 'ok') {
485: &Apache::lonnet::appenv(\%changeHash);
486: my $result = &Apache::lonnet::put('publicroster',{$student => $showinroster,},$cdom,$cnum);
487: if ($result eq 'ok') {
488: $output .=
489: &Apache::lonhtmlcommon::confirm_success(
490: &mt('Display of your name in the student-viewable roster set to [_1].','<b>'.$visibility.'</b>'));
491: } else {
492: $output .=
493: &Apache::lonhtmlcommon::confirm_success(
494: &mt('Error occurred saving display setting.'),1);
495: }
496: } else {
497: $output .=
498: &Apache::lonhtmlcommon::confirm_success(
499: &mt('Error occurred saving display setting.'),1);
500: }
501: } else {
502: $output .=
503: &Apache::lonhtmlcommon::confirm_success(
504: &mt('Display of your name in the student-viewable roster unchanged (set to [_1]).','<b>'.$visibility.'</b>'));
505: }
506: $output = &Apache::loncommon::confirmwrapper($output);
507: return $output;
508: }
509:
510:
511:
512:
513: ###################################################################
514: ###################################################################
515:
516: 1;
517: __END__
518:
519:
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