Annotation of loncom/interface/groupboards.pm, revision 1.20
1.1 raeburn 1: # The LearningOnline Network
2: # Group Bulletin Boards Manager
3: #
1.20 ! bisitz 4: # $Id: groupboards.pm,v 1.19 2013/08/17 00:34:29 raeburn Exp $
1.14 bisitz 5: #
1.1 raeburn 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::groupboards;
1.2 albertel 30:
1.1 raeburn 31: use strict;
32: use Apache::Constants qw(:common :http);
1.10 albertel 33: use Apache::loncommon();
1.1 raeburn 34: use Apache::lonnet;
1.10 albertel 35: use Apache::lonuserstate();
36: use LONCAPA::map();
1.1 raeburn 37: use Apache::lonlocal;
38: use LONCAPA;
39:
40: sub handler {
41: my ($r) = @_;
42: &Apache::loncommon::content_type($r,'text/html');
43: $r->send_http_header;
44: return OK if $r->header_only;
45:
46: # Needs to be in a course
47: if (! ($env{'request.course.fn'})) {
48: # Not in a course
49: $env{'user.error.msg'}=
50: "/adm/groupboards:mdg:0:0:Cannot edit or view course groups";
51: return HTTP_NOT_ACCEPTABLE;
52: }
53:
54: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.7 raeburn 55: ['group','ref']);
1.1 raeburn 56:
57: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
58: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
59: my $now = time;
60: my $crstype = &Apache::loncommon::course_type();
61: my $gpterm = &Apache::loncommon::group_term();
1.5 raeburn 62: my $ucgpterm = $gpterm;
63: $ucgpterm =~ s/^(\w)/uc($1)/e;
1.13 schafran 64: my $bodytitle = $ucgpterm.' Discussion Boards';
1.1 raeburn 65: my $group = $env{'form.group'};
1.5 raeburn 66: $group =~ s/\W//g;
1.7 raeburn 67: my ($description,$earlyout,$refarg);
68:
69: if (exists($env{'form.ref'})) {
70: $refarg = 'ref='.$env{'form.ref'};
71: }
1.5 raeburn 72:
73: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.1 raeburn 74: if (!defined($group)) {
1.5 raeburn 75: $earlyout = &mt('No [_1] defined, so there are no [_1] discussion boards to display',$gpterm);
76: $r->print(&display_error($cdom,$cnum,$group,$description,$gpterm,
1.7 raeburn 77: $ucgpterm,$bodytitle,$earlyout,$refarg));
1.5 raeburn 78: return OK;
79: }
80: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum,$group);
81: if (!defined($curr_groups{$group})) {
1.8 raeburn 82: $earlyout = &mt('Invalid group');
1.5 raeburn 83: $r->print(&display_error($cdom,$cnum,$group,$description,$gpterm,
1.7 raeburn 84: $ucgpterm,$bodytitle,$earlyout,$refarg));
1.1 raeburn 85: return OK;
86: }
1.5 raeburn 87: my %content = &Apache::longroup::get_group_settings($curr_groups{$group});
1.6 albertel 88: $description = &unescape($content{'description'});
1.5 raeburn 89:
1.1 raeburn 90: my $can_create=&Apache::lonnet::allowed('cgb',$env{'request.course.id'}.
91: '/'.$group);
1.7 raeburn 92: my $can_view = &Apache::lonnet::allowed('vcg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
1.5 raeburn 93:
94: if (!$can_view) {
1.7 raeburn 95: $can_view = &Apache::lonnet::allowed('vgb',$env{'request.course.id'}.
1.1 raeburn 96: '/'.$group);
1.5 raeburn 97: }
98: if (!$can_view) {
99: $earlyout=&mt('You do not have privileges to view discussion boards in this [_1]',$gpterm);
100: $r->print(&display_error($cdom,$cnum,$group,$description,$gpterm,
1.7 raeburn 101: $ucgpterm,$bodytitle,$earlyout,$refarg));
1.5 raeburn 102: return OK;
103: }
1.1 raeburn 104: if (defined($env{'form.newbul'})) {
105: if (($can_create) || (&Apache::lonnet::allowed('mdg',$env{'request.course.id'}))) {
1.5 raeburn 106: $r->print(&boards_header($cdom,$cnum,$group,$description,$gpterm,
1.7 raeburn 107: $ucgpterm,$bodytitle,$refarg));
1.16 raeburn 108: my ($outcome,$newurl,$bbtitle,$lockfreed) =
1.2 albertel 109: &create_board($cdom,$cnum,$group,$env{'form.newbul'});
1.1 raeburn 110: if ($outcome eq 'ok') {
111: my ($furl,$ferr)= &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
1.18 bisitz 112: $r->print(&mt('The new discussion board was added successfully.').'<br />');
1.1 raeburn 113: $r->print('<table border="0"><tr><td>'.
1.7 raeburn 114: '<a href="'.$newurl.'?group='.$group.'&'.$refarg.
115: '">'.&mt('Edit [_1] board',$bbtitle).'</a></td>'.
1.1 raeburn 116: '<td> </td><td>'.
1.7 raeburn 117: '<a href="/adm/groupboards?group='.$group.'&'.
118: $refarg.'">'.&mt('View all group discussion boards').
1.1 raeburn 119: '</a></td></tr></table>');
1.16 raeburn 120: if ($lockfreed ne 'ok') {
121: $r->print(&mt('There was a problem removing a lockfile for the group ([_1]).',$description).'<br />'.
1.20 ! bisitz 122: &mt('This may prevent creation of additional discussion boards in this group.').'<br />'.
1.19 raeburn 123: &mt('Please contact the [_1]helpdesk[_2] for assistance.',
124: '<a href="/adm/helpdesk">','</a>')
125: );
1.8 raeburn 126: }
1.1 raeburn 127: } else {
1.2 albertel 128: $r->print(&mt('There was a problem creating the new discussion board - [_1]','<span class="LC_error">'.$outcome.'</span>').'<br /><a href="/adm/groupboards?group='.$group.'">'.
1.1 raeburn 129: &mt('Return to discussion boards').'</a>');
130: }
131: $r->print(&Apache::loncommon::end_page());
132: return OK;
133: }
134: }
135: my $jscript;
136: if (($can_create) || (&Apache::lonnet::allowed('mdg',$env{'request.course.id'}))) {
137: $jscript = qq|
1.5 raeburn 138: <script type="text/javascript">
1.1 raeburn 139: function makebulboard() {
140: var title=prompt('Discussion Board Title');
141: if (title) {
1.8 raeburn 142: this.document.forms.newbb.newbul.value=title;
1.1 raeburn 143: this.document.forms.newbb.submit();
144: }
145: }
1.5 raeburn 146: </script>
1.1 raeburn 147: |;
148: }
1.5 raeburn 149: $r->print(&boards_header($cdom,$cnum,$group,$description,$gpterm,$ucgpterm,
1.7 raeburn 150: $bodytitle,$refarg,$jscript));
1.4 raeburn 151: my ($groupboards,$boards) = &Apache::longroup::get_group_bbinfo($cdom,$cnum,
152: $group);
1.1 raeburn 153: if (($can_create) || (&Apache::lonnet::allowed('mdg',$env{'request.course.id'}))) {
1.5 raeburn 154: $r->print('<br /><form method="post" name="newbb" action="/adm/groupboards">'.
1.1 raeburn 155: "\n".'<input type="button" name="bbbutton" value="'.
156: &mt('New Discussion Board').
1.17 bisitz 157: '" onclick="javascript:makebulboard();" />'."\n".
1.7 raeburn 158: '<input type="hidden" name="newbul" />'."\n".
159: '<input type="hidden" name="group" value="'.$group.'" />'.
160: '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />'.
1.1 raeburn 161: "\n".'</form><br />');
162: }
1.4 raeburn 163: if (@{$groupboards} > 0) {
1.12 bisitz 164: $r->print('<br />'
165: .&Apache::loncommon::start_data_table()
166: .&Apache::loncommon::start_data_table_header_row()
167: .'<th>'.&mt('Discussion Boards').'</th>'
168: .&Apache::loncommon::end_data_table_header_row()
169: );
1.4 raeburn 170: foreach my $board (@{$groupboards}) {
1.5 raeburn 171: my $board_url = $$boards{$board}{'url'};
172: if ($board_url =~ /\?/) {
173: $board_url .= '&group='.$group;
174: } else {
175: $board_url .= '?group='.$group;
176: }
1.12 bisitz 177: $r->print(&Apache::loncommon::start_data_table_row()
178: .'<td>'
179: .'<a href="'.$board_url.'&'.$refarg.'">'
180: .$$boards{$board}{'title'}.'</a>'
181: .'</td>'
182: .&Apache::loncommon::end_data_table_row()
183: );
1.1 raeburn 184: }
1.12 bisitz 185: $r->print(&Apache::loncommon::end_data_table());
1.1 raeburn 186: } else {
1.12 bisitz 187: $r->print('<p class="LC_info">'
188: .&mt('There are currently no discussion boards in this '.$gpterm.'.',)
189: .'</p>'
190: );
1.1 raeburn 191: }
192: $r->print(&Apache::loncommon::end_page());
193: return OK;
194: }
195:
196: sub create_board {
1.8 raeburn 197: my ($cdom,$cnum,$group,$bbtitle) = @_;
1.16 raeburn 198: my ($outcome,$newurl,$idtype);
1.8 raeburn 199: $bbtitle=&unescape($bbtitle);
1.16 raeburn 200: $idtype = 'inc';
201: my ($boardid,$dellock,$error) =
202: &Apache::lonnet::get_timebased_id($group,'boardids','groupboards',
203: $cdom,$cnum);
204: if ($boardid) {
205: $newurl = '/adm/'.$cdom.'/'.$cnum.'/'.$boardid.'/bulletinboard';
1.8 raeburn 206: } else {
1.16 raeburn 207: return ($error,$newurl,$bbtitle,$dellock);
1.8 raeburn 208: }
1.16 raeburn 209:
1.8 raeburn 210: # need to check here if group_boards_$group.sequence is in the course
211: # if not - add it as an item in group_folder_$group.sequence
1.4 raeburn 212: my $allbbsmap = &Apache::longroup::get_bbfolder_url($cdom,$cnum,$group);
1.1 raeburn 213: if ($allbbsmap =~ m|^/uploaded|) {
1.10 albertel 214: my ($errtext,$fatal)=&LONCAPA::map::mapread($allbbsmap);
1.1 raeburn 215: if (!$fatal) {
1.10 albertel 216: my $newidx=&LONCAPA::map::getresidx($newurl);
217: $LONCAPA::map::resources[$newidx]=$bbtitle.':'.$newurl.
1.1 raeburn 218: ':false:normal:res';
1.10 albertel 219: push(@LONCAPA::map::order,$newidx);
1.15 raeburn 220: my ($errtext,$fatal)=&LONCAPA::map::storemap($allbbsmap,1,1);
1.1 raeburn 221: if ($fatal) {
1.11 albertel 222: $outcome = "error: failed to save discussion boards map - $errtext\n";
1.1 raeburn 223: } else {
1.5 raeburn 224: my %boardinfo = (
225: 'group' => $group,
226: );
227: $outcome = &Apache::lonnet::put('bulletinpage_'.$boardid,
228: \%boardinfo,$cdom,$cnum);
1.1 raeburn 229: }
230: } else {
1.2 albertel 231: $outcome = "error: failed to read all discussion boards map - $errtext\n";
1.1 raeburn 232: }
233: } else {
1.2 albertel 234: $outcome = 'error: discussion boards folder absent, '.
1.1 raeburn 235: 'or in unexpected location - '.$allbbsmap."\n";
236: }
1.16 raeburn 237: return ($outcome,$newurl,$bbtitle,$dellock);
1.1 raeburn 238: }
239:
1.5 raeburn 240: sub display_error {
1.7 raeburn 241: my ($cdom,$cnum,$group,$description,$gpterm,$ucgpterm,$bodytitle,$earlyout,
242: $refarg)=@_;
1.5 raeburn 243: my $output = &boards_header($cdom,$cnum,$group,$description,$gpterm,
1.7 raeburn 244: $ucgpterm,$bodytitle,$refarg);
1.5 raeburn 245: $output .= $earlyout;
246: $output .= &Apache::loncommon::end_page();
247: return $output;
248: }
249:
250: sub boards_header {
1.7 raeburn 251: my ($cdom,$cnum,$group,$description,$gpterm,$ucgpterm,$bodytitle,$refarg,
252: $jscript)=@_;
1.5 raeburn 253: my $output = &Apache::loncommon::start_page($bodytitle,$jscript);
1.7 raeburn 254: if ($refarg) {
255: &Apache::lonhtmlcommon::add_breadcrumb
256: ({href=>"/adm/coursegroups",
257: text=>"Groups",
258: title=>"View course groups"},);
259: }
1.5 raeburn 260: &Apache::lonhtmlcommon::add_breadcrumb
1.7 raeburn 261: ({href=>"/adm/$cdom/$cnum/$group/smppg?$refarg",
1.5 raeburn 262: text=>"$ucgpterm: $description",
263: title=>"Go to group's home page"},
1.7 raeburn 264: {href=>"/adm/groupboards?group=$group&$refarg",
1.5 raeburn 265: text=>"Discussion Boards",
266: title=>"Display group discussion boards"},);
267: $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('[_1] discussion boards - [_2]',$gpterm,$description));
268: return $output;
269: }
270:
1.1 raeburn 271: 1;
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