Annotation of loncom/interface/groupboards.pm, revision 1.6
1.1 raeburn 1: # The LearningOnline Network
2: # Group Bulletin Boards Manager
3: #
4: # Copyright Michigan State University Board of Trustees
5: #
6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
7: #
8: # LON-CAPA is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2 of the License, or
11: # (at your option) any later version.
12: #
13: # LON-CAPA is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17: #
18: # You should have received a copy of the GNU General Public License
19: # along with LON-CAPA; if not, write to the Free Software
20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: #
22: # /home/httpd/html/adm/gpl.txt
23: #
24: # http://www.lon-capa.org/
25: #
26:
27: package Apache::groupboards;
1.2 albertel 28:
1.1 raeburn 29: use strict;
30: use Apache::Constants qw(:common :http);
31: use Apache::loncommon;
32: use Apache::lonnet;
33: use Apache::lonuserstate;
34: use Apache::lonratedt;
35: use Apache::lonlocal;
36: use LONCAPA;
37:
38: sub handler {
39: my ($r) = @_;
40: &Apache::loncommon::content_type($r,'text/html');
41: $r->send_http_header;
42: return OK if $r->header_only;
43:
44: # Needs to be in a course
45: if (! ($env{'request.course.fn'})) {
46: # Not in a course
47: $env{'user.error.msg'}=
48: "/adm/groupboards:mdg:0:0:Cannot edit or view course groups";
49: return HTTP_NOT_ACCEPTABLE;
50: }
51:
52: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
53: ['group']);
54:
55: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
56: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
57: my $now = time;
58: my $crstype = &Apache::loncommon::course_type();
59: my $gpterm = &Apache::loncommon::group_term();
1.5 raeburn 60: my $ucgpterm = $gpterm;
61: $ucgpterm =~ s/^(\w)/uc($1)/e;
1.1 raeburn 62: my $bodytitle = &mt('[_1] Discussion Boards',$crstype);
63: my $group = $env{'form.group'};
1.5 raeburn 64: $group =~ s/\W//g;
65: my ($description,$earlyout);
66:
67: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.1 raeburn 68: if (!defined($group)) {
1.5 raeburn 69: $earlyout = &mt('No [_1] defined, so there are no [_1] discussion boards to display',$gpterm);
70: $r->print(&display_error($cdom,$cnum,$group,$description,$gpterm,
71: $ucgpterm,$bodytitle,$earlyout));
72: return OK;
73: }
74: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum,$group);
75: if (!defined($curr_groups{$group})) {
76: $earlyout = &mt('Invalid [_1]',$gpterm);
77: $r->print(&display_error($cdom,$cnum,$group,$description,$gpterm,
78: $ucgpterm,$bodytitle,$earlyout));
1.1 raeburn 79: return OK;
80: }
1.5 raeburn 81: my %content = &Apache::longroup::get_group_settings($curr_groups{$group});
1.6 ! albertel 82: $description = &unescape($content{'description'});
1.5 raeburn 83:
1.1 raeburn 84: my $can_create=&Apache::lonnet::allowed('cgb',$env{'request.course.id'}.
85: '/'.$group);
1.5 raeburn 86: my $can_view = &Apache::lonnet::allowed('vcg',$env{'request.course.id'});
87:
88: if (!$can_view) {
89: $can_view = &Apache::lonnet::allowed('pgd',$env{'request.course.id'}.
1.1 raeburn 90: '/'.$group);
1.5 raeburn 91: }
92: if (!$can_view) {
93: $earlyout=&mt('You do not have privileges to view discussion boards in this [_1]',$gpterm);
94: $r->print(&display_error($cdom,$cnum,$group,$description,$gpterm,
95: $ucgpterm,$bodytitle,$earlyout));
96: return OK;
97: }
1.1 raeburn 98: if (defined($env{'form.newbul'})) {
99: if (($can_create) || (&Apache::lonnet::allowed('mdg',$env{'request.course.id'}))) {
1.5 raeburn 100: $r->print(&boards_header($cdom,$cnum,$group,$description,$gpterm,
101: $ucgpterm,$bodytitle));
1.4 raeburn 102: my ($outcome,$newurl,$bbtitle) =
1.2 albertel 103: &create_board($cdom,$cnum,$group,$env{'form.newbul'});
1.1 raeburn 104: if ($outcome eq 'ok') {
105: my ($furl,$ferr)= &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
106: $r->print(&mt('The new discussion board was added successfully.<br />'));
107: $r->print('<table border="0"><tr><td>'.
1.3 raeburn 108: '<a href="'.$newurl.'?group='.$group.'">'.
1.1 raeburn 109: &mt('Edit [_1] board',$bbtitle).'</a></td>'.
110: '<td> </td><td>'.
111: '<a href="/adm/groupboards?group='.$group.'">'.
112: &mt('View all group discussion boards').
113: '</a></td></tr></table>');
114: } else {
1.2 albertel 115: $r->print(&mt('There was a problem creating the new discussion board - [_1]','<span class="LC_error">'.$outcome.'</span>').'<br /><a href="/adm/groupboards?group='.$group.'">'.
1.1 raeburn 116: &mt('Return to discussion boards').'</a>');
117: }
118: $r->print(&Apache::loncommon::end_page());
119: return OK;
120: }
121: }
122: my $jscript;
123: if (($can_create) || (&Apache::lonnet::allowed('mdg',$env{'request.course.id'}))) {
124: $jscript = qq|
1.5 raeburn 125: <script type="text/javascript">
1.1 raeburn 126: function makebulboard() {
127: var title=prompt('Discussion Board Title');
128: if (title) {
129: this.document.forms.newbb.newbul.value=
130: title+'=/adm/$cdom/$cnum/$now/bulletinboard';
131: this.document.forms.newbb.submit();
132: }
133: }
1.5 raeburn 134: </script>
1.1 raeburn 135: |;
136: }
1.5 raeburn 137: $r->print(&boards_header($cdom,$cnum,$group,$description,$gpterm,$ucgpterm,
138: $bodytitle,$jscript));
1.4 raeburn 139: my ($groupboards,$boards) = &Apache::longroup::get_group_bbinfo($cdom,$cnum,
140: $group);
1.1 raeburn 141: if (($can_create) || (&Apache::lonnet::allowed('mdg',$env{'request.course.id'}))) {
1.5 raeburn 142: $r->print('<br /><form method="post" name="newbb" action="/adm/groupboards">'.
1.1 raeburn 143: "\n".'<input type="button" name="bbbutton" value="'.
144: &mt('New Discussion Board').
145: '" onClick="javascript:makebulboard();" />'."\n".
146: ' <input type="hidden" name="newbul" />'."\n".
147: ' <input type="hidden" name="group" value="'.$group.'" />'.
148: "\n".'</form><br />');
149: }
1.4 raeburn 150: if (@{$groupboards} > 0) {
1.5 raeburn 151: $r->print('<br />');
1.4 raeburn 152: foreach my $board (@{$groupboards}) {
1.5 raeburn 153: my $board_url = $$boards{$board}{'url'};
154: if ($board_url =~ /\?/) {
155: $board_url .= '&group='.$group;
156: } else {
157: $board_url .= '?group='.$group;
158: }
159: $r->print('<a href="'.$board_url.'">'.$$boards{$board}{'title'}.'</a><br />');
1.1 raeburn 160: }
161: } else {
1.5 raeburn 162: $r->print('<br />'.&mt('There are currently no discussion boards in this [_1].',
1.1 raeburn 163: $gpterm));
164: }
165: $r->print(&Apache::loncommon::end_page());
166: return OK;
167: }
168:
169: sub create_board {
1.4 raeburn 170: my ($cdom,$cnum,$group,$newboard) = @_;
1.1 raeburn 171: my ($bbtitle,$newurl)=split(/\=/,$newboard);
1.5 raeburn 172: my $outcome;
173: my ($boardid) = ($newurl =~ m-/adm/\Q$cdom\E/\Q$cnum\E/(\d+)/bulletinboard-);
174: if (!$boardid) {
175: $outcome = ('error: the URL for new board was invalid');
176: return ($outcome,$newurl,$bbtitle);
177: }
1.1 raeburn 178: $bbtitle=&unescape($bbtitle);
179: $newurl=&unescape($newurl);
1.4 raeburn 180: my $allbbsmap = &Apache::longroup::get_bbfolder_url($cdom,$cnum,$group);
1.1 raeburn 181: if ($allbbsmap =~ m|^/uploaded|) {
182: my ($errtext,$fatal)=&Apache::lonratedt::mapread($allbbsmap);
183: if (!$fatal) {
184: my $newidx=&Apache::lonratedt::getresidx($newurl);
185: $Apache::lonratedt::resources[$newidx]=$bbtitle.':'.$newurl.
186: ':false:normal:res';
1.2 albertel 187: push(@Apache::lonratedt::order,$newidx);
1.1 raeburn 188: my ($errtext,$fatal)=&Apache::lonratedt::storemap($allbbsmap,1);
189: if ($fatal) {
1.2 albertel 190: $outcome = "error: failed to store discussion boards map - $errtext\n";
1.1 raeburn 191: } else {
1.5 raeburn 192: my %boardinfo = (
193: 'group' => $group,
194: );
195: $outcome = &Apache::lonnet::put('bulletinpage_'.$boardid,
196: \%boardinfo,$cdom,$cnum);
1.1 raeburn 197: }
198: } else {
1.2 albertel 199: $outcome = "error: failed to read all discussion boards map - $errtext\n";
1.1 raeburn 200: }
201: } else {
1.2 albertel 202: $outcome = 'error: discussion boards folder absent, '.
1.1 raeburn 203: 'or in unexpected location - '.$allbbsmap."\n";
204: }
1.4 raeburn 205: return ($outcome,$newurl,$bbtitle);
1.1 raeburn 206: }
207:
1.5 raeburn 208: sub display_error {
209: my ($cdom,$cnum,$group,$description,$gpterm,$ucgpterm,$bodytitle,$earlyout)=@_;
210: my $output = &boards_header($cdom,$cnum,$group,$description,$gpterm,
211: $ucgpterm,$bodytitle);
212: $output .= $earlyout;
213: $output .= &Apache::loncommon::end_page();
214: return $output;
215: }
216:
217: sub boards_header {
218: my ($cdom,$cnum,$group,$description,$gpterm,$ucgpterm,$bodytitle,$jscript)=@_;
219: my $output = &Apache::loncommon::start_page($bodytitle,$jscript);
220: &Apache::lonhtmlcommon::add_breadcrumb
221: ({href=>"/adm/$cdom/$cnum/$group/smppg",
222: text=>"$ucgpterm: $description",
223: title=>"Go to group's home page"},
224: {href=>"/adm/groupboards?group=$group",
225: text=>"Discussion Boards",
226: title=>"Display group discussion boards"},);
227: $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('[_1] discussion boards - [_2]',$gpterm,$description));
228: return $output;
229: }
230:
1.1 raeburn 231: 1;
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