Annotation of loncom/interface/groupboards.pm, revision 1.18
1.1 raeburn 1: # The LearningOnline Network
2: # Group Bulletin Boards Manager
3: #
1.18 ! bisitz 4: # $Id: groupboards.pm,v 1.17 2013/07/15 14:32:45 bisitz 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 />'.
122: &mt('This may prevent creation of additional bulletin boards in this group.').'<br />'.
123: &mt('Please contact the domain coordinator for your LON-CAPA domain.'));
1.8 raeburn 124: }
1.1 raeburn 125: } else {
1.2 albertel 126: $r->print(&mt('There was a problem creating the new discussion board - [_1]','<span class="LC_error">'.$outcome.'</span>').'<br /><a href="/adm/groupboards?group='.$group.'">'.
1.1 raeburn 127: &mt('Return to discussion boards').'</a>');
128: }
129: $r->print(&Apache::loncommon::end_page());
130: return OK;
131: }
132: }
133: my $jscript;
134: if (($can_create) || (&Apache::lonnet::allowed('mdg',$env{'request.course.id'}))) {
135: $jscript = qq|
1.5 raeburn 136: <script type="text/javascript">
1.1 raeburn 137: function makebulboard() {
138: var title=prompt('Discussion Board Title');
139: if (title) {
1.8 raeburn 140: this.document.forms.newbb.newbul.value=title;
1.1 raeburn 141: this.document.forms.newbb.submit();
142: }
143: }
1.5 raeburn 144: </script>
1.1 raeburn 145: |;
146: }
1.5 raeburn 147: $r->print(&boards_header($cdom,$cnum,$group,$description,$gpterm,$ucgpterm,
1.7 raeburn 148: $bodytitle,$refarg,$jscript));
1.4 raeburn 149: my ($groupboards,$boards) = &Apache::longroup::get_group_bbinfo($cdom,$cnum,
150: $group);
1.1 raeburn 151: if (($can_create) || (&Apache::lonnet::allowed('mdg',$env{'request.course.id'}))) {
1.5 raeburn 152: $r->print('<br /><form method="post" name="newbb" action="/adm/groupboards">'.
1.1 raeburn 153: "\n".'<input type="button" name="bbbutton" value="'.
154: &mt('New Discussion Board').
1.17 bisitz 155: '" onclick="javascript:makebulboard();" />'."\n".
1.7 raeburn 156: '<input type="hidden" name="newbul" />'."\n".
157: '<input type="hidden" name="group" value="'.$group.'" />'.
158: '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />'.
1.1 raeburn 159: "\n".'</form><br />');
160: }
1.4 raeburn 161: if (@{$groupboards} > 0) {
1.12 bisitz 162: $r->print('<br />'
163: .&Apache::loncommon::start_data_table()
164: .&Apache::loncommon::start_data_table_header_row()
165: .'<th>'.&mt('Discussion Boards').'</th>'
166: .&Apache::loncommon::end_data_table_header_row()
167: );
1.4 raeburn 168: foreach my $board (@{$groupboards}) {
1.5 raeburn 169: my $board_url = $$boards{$board}{'url'};
170: if ($board_url =~ /\?/) {
171: $board_url .= '&group='.$group;
172: } else {
173: $board_url .= '?group='.$group;
174: }
1.12 bisitz 175: $r->print(&Apache::loncommon::start_data_table_row()
176: .'<td>'
177: .'<a href="'.$board_url.'&'.$refarg.'">'
178: .$$boards{$board}{'title'}.'</a>'
179: .'</td>'
180: .&Apache::loncommon::end_data_table_row()
181: );
1.1 raeburn 182: }
1.12 bisitz 183: $r->print(&Apache::loncommon::end_data_table());
1.1 raeburn 184: } else {
1.12 bisitz 185: $r->print('<p class="LC_info">'
186: .&mt('There are currently no discussion boards in this '.$gpterm.'.',)
187: .'</p>'
188: );
1.1 raeburn 189: }
190: $r->print(&Apache::loncommon::end_page());
191: return OK;
192: }
193:
194: sub create_board {
1.8 raeburn 195: my ($cdom,$cnum,$group,$bbtitle) = @_;
1.16 raeburn 196: my ($outcome,$newurl,$idtype);
1.8 raeburn 197: $bbtitle=&unescape($bbtitle);
1.16 raeburn 198: $idtype = 'inc';
199: my ($boardid,$dellock,$error) =
200: &Apache::lonnet::get_timebased_id($group,'boardids','groupboards',
201: $cdom,$cnum);
202: if ($boardid) {
203: $newurl = '/adm/'.$cdom.'/'.$cnum.'/'.$boardid.'/bulletinboard';
1.8 raeburn 204: } else {
1.16 raeburn 205: return ($error,$newurl,$bbtitle,$dellock);
1.8 raeburn 206: }
1.16 raeburn 207:
1.8 raeburn 208: # need to check here if group_boards_$group.sequence is in the course
209: # if not - add it as an item in group_folder_$group.sequence
1.4 raeburn 210: my $allbbsmap = &Apache::longroup::get_bbfolder_url($cdom,$cnum,$group);
1.1 raeburn 211: if ($allbbsmap =~ m|^/uploaded|) {
1.10 albertel 212: my ($errtext,$fatal)=&LONCAPA::map::mapread($allbbsmap);
1.1 raeburn 213: if (!$fatal) {
1.10 albertel 214: my $newidx=&LONCAPA::map::getresidx($newurl);
215: $LONCAPA::map::resources[$newidx]=$bbtitle.':'.$newurl.
1.1 raeburn 216: ':false:normal:res';
1.10 albertel 217: push(@LONCAPA::map::order,$newidx);
1.15 raeburn 218: my ($errtext,$fatal)=&LONCAPA::map::storemap($allbbsmap,1,1);
1.1 raeburn 219: if ($fatal) {
1.11 albertel 220: $outcome = "error: failed to save discussion boards map - $errtext\n";
1.1 raeburn 221: } else {
1.5 raeburn 222: my %boardinfo = (
223: 'group' => $group,
224: );
225: $outcome = &Apache::lonnet::put('bulletinpage_'.$boardid,
226: \%boardinfo,$cdom,$cnum);
1.1 raeburn 227: }
228: } else {
1.2 albertel 229: $outcome = "error: failed to read all discussion boards map - $errtext\n";
1.1 raeburn 230: }
231: } else {
1.2 albertel 232: $outcome = 'error: discussion boards folder absent, '.
1.1 raeburn 233: 'or in unexpected location - '.$allbbsmap."\n";
234: }
1.16 raeburn 235: return ($outcome,$newurl,$bbtitle,$dellock);
1.1 raeburn 236: }
237:
1.5 raeburn 238: sub display_error {
1.7 raeburn 239: my ($cdom,$cnum,$group,$description,$gpterm,$ucgpterm,$bodytitle,$earlyout,
240: $refarg)=@_;
1.5 raeburn 241: my $output = &boards_header($cdom,$cnum,$group,$description,$gpterm,
1.7 raeburn 242: $ucgpterm,$bodytitle,$refarg);
1.5 raeburn 243: $output .= $earlyout;
244: $output .= &Apache::loncommon::end_page();
245: return $output;
246: }
247:
248: sub boards_header {
1.7 raeburn 249: my ($cdom,$cnum,$group,$description,$gpterm,$ucgpterm,$bodytitle,$refarg,
250: $jscript)=@_;
1.5 raeburn 251: my $output = &Apache::loncommon::start_page($bodytitle,$jscript);
1.7 raeburn 252: if ($refarg) {
253: &Apache::lonhtmlcommon::add_breadcrumb
254: ({href=>"/adm/coursegroups",
255: text=>"Groups",
256: title=>"View course groups"},);
257: }
1.5 raeburn 258: &Apache::lonhtmlcommon::add_breadcrumb
1.7 raeburn 259: ({href=>"/adm/$cdom/$cnum/$group/smppg?$refarg",
1.5 raeburn 260: text=>"$ucgpterm: $description",
261: title=>"Go to group's home page"},
1.7 raeburn 262: {href=>"/adm/groupboards?group=$group&$refarg",
1.5 raeburn 263: text=>"Discussion Boards",
264: title=>"Display group discussion boards"},);
265: $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('[_1] discussion boards - [_2]',$gpterm,$description));
266: return $output;
267: }
268:
1.1 raeburn 269: 1;
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