Annotation of loncom/interface/groupboards.pm, revision 1.22
1.1 raeburn 1: # The LearningOnline Network
2: # Group Bulletin Boards Manager
3: #
1.22 ! raeburn 4: # $Id: groupboards.pm,v 1.21 2013/11/23 20:40:57 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();
1.22 ! raeburn 36: use Apache::longroup;
! 37: use Apache::lonnavmaps;
1.10 albertel 38: use LONCAPA::map();
1.1 raeburn 39: use Apache::lonlocal;
40: use LONCAPA;
41:
42: sub handler {
43: my ($r) = @_;
44: &Apache::loncommon::content_type($r,'text/html');
45: $r->send_http_header;
46: return OK if $r->header_only;
47:
48: # Needs to be in a course
49: if (! ($env{'request.course.fn'})) {
50: # Not in a course
51: $env{'user.error.msg'}=
52: "/adm/groupboards:mdg:0:0:Cannot edit or view course groups";
53: return HTTP_NOT_ACCEPTABLE;
54: }
55:
56: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.7 raeburn 57: ['group','ref']);
1.1 raeburn 58:
59: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
60: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
61: my $now = time;
62: my $crstype = &Apache::loncommon::course_type();
63: my $gpterm = &Apache::loncommon::group_term();
1.5 raeburn 64: my $ucgpterm = $gpterm;
65: $ucgpterm =~ s/^(\w)/uc($1)/e;
1.13 schafran 66: my $bodytitle = $ucgpterm.' Discussion Boards';
1.1 raeburn 67: my $group = $env{'form.group'};
1.5 raeburn 68: $group =~ s/\W//g;
1.7 raeburn 69: my ($description,$earlyout,$refarg);
70:
71: if (exists($env{'form.ref'})) {
72: $refarg = 'ref='.$env{'form.ref'};
73: }
1.5 raeburn 74:
75: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.1 raeburn 76: if (!defined($group)) {
1.21 raeburn 77: $earlyout = &mt("No $gpterm defined, so there are no $gpterm discussion boards to display");
1.5 raeburn 78: $r->print(&display_error($cdom,$cnum,$group,$description,$gpterm,
1.7 raeburn 79: $ucgpterm,$bodytitle,$earlyout,$refarg));
1.5 raeburn 80: return OK;
81: }
82: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum,$group);
83: if (!defined($curr_groups{$group})) {
1.8 raeburn 84: $earlyout = &mt('Invalid group');
1.5 raeburn 85: $r->print(&display_error($cdom,$cnum,$group,$description,$gpterm,
1.7 raeburn 86: $ucgpterm,$bodytitle,$earlyout,$refarg));
1.1 raeburn 87: return OK;
88: }
1.5 raeburn 89: my %content = &Apache::longroup::get_group_settings($curr_groups{$group});
1.6 albertel 90: $description = &unescape($content{'description'});
1.5 raeburn 91:
1.1 raeburn 92: my $can_create=&Apache::lonnet::allowed('cgb',$env{'request.course.id'}.
93: '/'.$group);
1.7 raeburn 94: my $can_view = &Apache::lonnet::allowed('vcg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
1.5 raeburn 95:
96: if (!$can_view) {
1.7 raeburn 97: $can_view = &Apache::lonnet::allowed('vgb',$env{'request.course.id'}.
1.1 raeburn 98: '/'.$group);
1.5 raeburn 99: }
100: if (!$can_view) {
1.21 raeburn 101: $earlyout=&mt("You do not have privileges to view discussion boards in this $gpterm");
1.5 raeburn 102: $r->print(&display_error($cdom,$cnum,$group,$description,$gpterm,
1.7 raeburn 103: $ucgpterm,$bodytitle,$earlyout,$refarg));
1.5 raeburn 104: return OK;
105: }
1.1 raeburn 106: if (defined($env{'form.newbul'})) {
107: if (($can_create) || (&Apache::lonnet::allowed('mdg',$env{'request.course.id'}))) {
1.5 raeburn 108: $r->print(&boards_header($cdom,$cnum,$group,$description,$gpterm,
1.7 raeburn 109: $ucgpterm,$bodytitle,$refarg));
1.16 raeburn 110: my ($outcome,$newurl,$bbtitle,$lockfreed) =
1.2 albertel 111: &create_board($cdom,$cnum,$group,$env{'form.newbul'});
1.1 raeburn 112: if ($outcome eq 'ok') {
113: my ($furl,$ferr)= &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
1.18 bisitz 114: $r->print(&mt('The new discussion board was added successfully.').'<br />');
1.1 raeburn 115: $r->print('<table border="0"><tr><td>'.
1.7 raeburn 116: '<a href="'.$newurl.'?group='.$group.'&'.$refarg.
117: '">'.&mt('Edit [_1] board',$bbtitle).'</a></td>'.
1.1 raeburn 118: '<td> </td><td>'.
1.7 raeburn 119: '<a href="/adm/groupboards?group='.$group.'&'.
120: $refarg.'">'.&mt('View all group discussion boards').
1.1 raeburn 121: '</a></td></tr></table>');
1.16 raeburn 122: if ($lockfreed ne 'ok') {
123: $r->print(&mt('There was a problem removing a lockfile for the group ([_1]).',$description).'<br />'.
1.20 bisitz 124: &mt('This may prevent creation of additional discussion boards in this group.').'<br />'.
1.19 raeburn 125: &mt('Please contact the [_1]helpdesk[_2] for assistance.',
126: '<a href="/adm/helpdesk">','</a>')
127: );
1.8 raeburn 128: }
1.1 raeburn 129: } else {
1.2 albertel 130: $r->print(&mt('There was a problem creating the new discussion board - [_1]','<span class="LC_error">'.$outcome.'</span>').'<br /><a href="/adm/groupboards?group='.$group.'">'.
1.1 raeburn 131: &mt('Return to discussion boards').'</a>');
132: }
133: $r->print(&Apache::loncommon::end_page());
134: return OK;
135: }
136: }
137: my $jscript;
138: if (($can_create) || (&Apache::lonnet::allowed('mdg',$env{'request.course.id'}))) {
139: $jscript = qq|
1.5 raeburn 140: <script type="text/javascript">
1.1 raeburn 141: function makebulboard() {
142: var title=prompt('Discussion Board Title');
143: if (title) {
1.8 raeburn 144: this.document.forms.newbb.newbul.value=title;
1.1 raeburn 145: this.document.forms.newbb.submit();
146: }
147: }
1.5 raeburn 148: </script>
1.1 raeburn 149: |;
150: }
1.5 raeburn 151: $r->print(&boards_header($cdom,$cnum,$group,$description,$gpterm,$ucgpterm,
1.7 raeburn 152: $bodytitle,$refarg,$jscript));
1.4 raeburn 153: my ($groupboards,$boards) = &Apache::longroup::get_group_bbinfo($cdom,$cnum,
154: $group);
1.1 raeburn 155: if (($can_create) || (&Apache::lonnet::allowed('mdg',$env{'request.course.id'}))) {
1.5 raeburn 156: $r->print('<br /><form method="post" name="newbb" action="/adm/groupboards">'.
1.1 raeburn 157: "\n".'<input type="button" name="bbbutton" value="'.
158: &mt('New Discussion Board').
1.17 bisitz 159: '" onclick="javascript:makebulboard();" />'."\n".
1.7 raeburn 160: '<input type="hidden" name="newbul" />'."\n".
161: '<input type="hidden" name="group" value="'.$group.'" />'.
162: '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />'.
1.1 raeburn 163: "\n".'</form><br />');
164: }
1.4 raeburn 165: if (@{$groupboards} > 0) {
1.12 bisitz 166: $r->print('<br />'
167: .&Apache::loncommon::start_data_table()
168: .&Apache::loncommon::start_data_table_header_row()
169: .'<th>'.&mt('Discussion Boards').'</th>'
170: .&Apache::loncommon::end_data_table_header_row()
171: );
1.4 raeburn 172: foreach my $board (@{$groupboards}) {
1.5 raeburn 173: my $board_url = $$boards{$board}{'url'};
174: if ($board_url =~ /\?/) {
175: $board_url .= '&group='.$group;
176: } else {
177: $board_url .= '?group='.$group;
178: }
1.12 bisitz 179: $r->print(&Apache::loncommon::start_data_table_row()
180: .'<td>'
181: .'<a href="'.$board_url.'&'.$refarg.'">'
182: .$$boards{$board}{'title'}.'</a>'
183: .'</td>'
184: .&Apache::loncommon::end_data_table_row()
185: );
1.1 raeburn 186: }
1.12 bisitz 187: $r->print(&Apache::loncommon::end_data_table());
1.1 raeburn 188: } else {
1.12 bisitz 189: $r->print('<p class="LC_info">'
190: .&mt('There are currently no discussion boards in this '.$gpterm.'.',)
191: .'</p>'
192: );
1.1 raeburn 193: }
194: $r->print(&Apache::loncommon::end_page());
195: return OK;
196: }
197:
198: sub create_board {
1.8 raeburn 199: my ($cdom,$cnum,$group,$bbtitle) = @_;
1.16 raeburn 200: my ($outcome,$newurl,$idtype);
1.8 raeburn 201: $bbtitle=&unescape($bbtitle);
1.16 raeburn 202: $idtype = 'inc';
203: my ($boardid,$dellock,$error) =
204: &Apache::lonnet::get_timebased_id($group,'boardids','groupboards',
205: $cdom,$cnum);
206: if ($boardid) {
207: $newurl = '/adm/'.$cdom.'/'.$cnum.'/'.$boardid.'/bulletinboard';
1.8 raeburn 208: } else {
1.16 raeburn 209: return ($error,$newurl,$bbtitle,$dellock);
1.8 raeburn 210: }
1.16 raeburn 211:
1.8 raeburn 212: # need to check here if group_boards_$group.sequence is in the course
213: # if not - add it as an item in group_folder_$group.sequence
1.4 raeburn 214: my $allbbsmap = &Apache::longroup::get_bbfolder_url($cdom,$cnum,$group);
1.1 raeburn 215: if ($allbbsmap =~ m|^/uploaded|) {
1.10 albertel 216: my ($errtext,$fatal)=&LONCAPA::map::mapread($allbbsmap);
1.1 raeburn 217: if (!$fatal) {
1.10 albertel 218: my $newidx=&LONCAPA::map::getresidx($newurl);
219: $LONCAPA::map::resources[$newidx]=$bbtitle.':'.$newurl.
1.1 raeburn 220: ':false:normal:res';
1.10 albertel 221: push(@LONCAPA::map::order,$newidx);
1.15 raeburn 222: my ($errtext,$fatal)=&LONCAPA::map::storemap($allbbsmap,1,1);
1.1 raeburn 223: if ($fatal) {
1.11 albertel 224: $outcome = "error: failed to save discussion boards map - $errtext\n";
1.1 raeburn 225: } else {
1.5 raeburn 226: my %boardinfo = (
227: 'group' => $group,
228: );
229: $outcome = &Apache::lonnet::put('bulletinpage_'.$boardid,
230: \%boardinfo,$cdom,$cnum);
1.1 raeburn 231: }
232: } else {
1.2 albertel 233: $outcome = "error: failed to read all discussion boards map - $errtext\n";
1.1 raeburn 234: }
235: } else {
1.2 albertel 236: $outcome = 'error: discussion boards folder absent, '.
1.1 raeburn 237: 'or in unexpected location - '.$allbbsmap."\n";
238: }
1.16 raeburn 239: return ($outcome,$newurl,$bbtitle,$dellock);
1.1 raeburn 240: }
241:
1.5 raeburn 242: sub display_error {
1.7 raeburn 243: my ($cdom,$cnum,$group,$description,$gpterm,$ucgpterm,$bodytitle,$earlyout,
244: $refarg)=@_;
1.5 raeburn 245: my $output = &boards_header($cdom,$cnum,$group,$description,$gpterm,
1.7 raeburn 246: $ucgpterm,$bodytitle,$refarg);
1.5 raeburn 247: $output .= $earlyout;
248: $output .= &Apache::loncommon::end_page();
249: return $output;
250: }
251:
252: sub boards_header {
1.7 raeburn 253: my ($cdom,$cnum,$group,$description,$gpterm,$ucgpterm,$bodytitle,$refarg,
254: $jscript)=@_;
1.5 raeburn 255: my $output = &Apache::loncommon::start_page($bodytitle,$jscript);
1.7 raeburn 256: if ($refarg) {
257: &Apache::lonhtmlcommon::add_breadcrumb
258: ({href=>"/adm/coursegroups",
259: text=>"Groups",
260: title=>"View course groups"},);
261: }
1.22 ! raeburn 262: my $view_permission =
! 263: &Apache::lonnet::allowed('vcg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
! 264: my $navmap=Apache::lonnavmaps::navmap->new();
! 265: my $grouppagelink = &Apache::longroup::get_group_link($cdom,$cnum,$group,$navmap,$view_permission,$refarg);
! 266: if ($grouppagelink) {
! 267: &Apache::lonhtmlcommon::add_breadcrumb
! 268: ({href=>$grouppagelink,
! 269: text=>"$ucgpterm: $description",
! 270: title=>"Go to group's home page"});
! 271: } else {
! 272: &Apache::lonhtmlcommon::add_breadcrumb
! 273: ({text=>"$ucgpterm: $description",});
! 274: }
1.5 raeburn 275: &Apache::lonhtmlcommon::add_breadcrumb
1.22 ! raeburn 276: ({href=>"/adm/groupboards?group=$group&$refarg",
1.5 raeburn 277: text=>"Discussion Boards",
278: title=>"Display group discussion boards"},);
279: $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('[_1] discussion boards - [_2]',$gpterm,$description));
280: return $output;
281: }
282:
1.1 raeburn 283: 1;
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