loncom/interface/lonbulletin.pm - view

File: [LON-CAPA] / loncom / interface / lonbulletin.pm
Revision 1.21: download - view: text, annotated - select for diffs
Wed May 5 21:04:14 2004 UTC (20 years, 2 months ago) by raeburn
Branches: MAIN
CVS tags: HEAD

Posts in discussions now identified as "NEW" if posts were added since user's last visit to resource or bulletin board.  "Speech bubbles" in NAVMAP also displayed for each resource or bulletin board if posts have been added since last visit.

User can set display to be all posts, or only unread posts.  To support cases where there are several "NEW" posts, the time of the previous visit is passed in a query string during hide/make visible, reply or delete operations so that the differentiation of "NEW" posts is retained until the user leaves the bulletin board.  This behavior does not currently apply to discussions associated with resources.

1: # The LearningOnline Network 2: # Bulletin Board Handler 3: # 4: # $Id: lonbulletin.pm,v 1.21 2004/05/05 21:04:14 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: package Apache::lonbulletin; 30: 31: use strict; 32: use Apache::Constants qw(:common); 33: use Apache::loncommon; 34: use Apache::lonnet; 35: use Apache::lontexconvert; 36: use Apache::lonfeedback; 37: use Apache::lonlocal; 38: 39: sub handler { 40: my $r = shift; 41: &Apache::loncommon::content_type($r,'text/html'); 42: $r->send_http_header; 43: return OK if $r->header_only; 44: 45: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous']); 46: # ------------------------------------------------------------ Print the screen 47: $r->print(<<ENDDOCUMENT); 48: <html> 49: <head> 50: <title>The LearningOnline Network with CAPA</title> 51: ENDDOCUMENT 52: my (undef,undef,undef,undef,$marker)=split(/\//,$r->uri); 53: # Is this even in a course? 54: unless ($ENV{'request.course.id'}) { 55: $r->print('</head><body>Not in a course</body></html>'); 56: return OK; 57: } 58: 59: $marker=~s/\D//g; 60: 61: unless ($marker) { 62: $r->print('<body>Invalid call</body>'); 63: return OK; 64: } 65: 66: my $dom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}; 67: my $crs = $ENV{'course.'.$ENV{'request.course.id'}.'.num'}; 68: 69: # --------------------------------------------------------- The syllabus fields 70: my %syllabusfields=&Apache::lonlocal::texthash( 71: 'aaa_title' => 'Topic', 72: 'bbb_content' => 'Task', 73: 'ccc_webreferences' => 'Web References'); 74: 75: # ------------------------------------------------------------ Get Query String 76: &Apache::loncommon::get_unprocessed_cgi 77: ($ENV{'QUERY_STRING'},['forcestudent','forceedit','register']); 78: # ----------------------------------------------------- Force menu registration 79: my $addentries=''; 80: if ($ENV{'form.register'}) { 81: $addentries=' onLoad="'.&Apache::lonmenu::loadevents(). 82: '" onUnload="'.&Apache::lonmenu::unloadevents().'"'; 83: $r->print(&Apache::lonmenu::registerurl(1)); 84: } 85: # --------------------------------------------------------------- Force Student 86: my $forcestudent=''; 87: if ($ENV{'form.forcestudent'}) { $forcestudent='student'; } 88: 89: my $forceedit=''; 90: if ($ENV{'form.forceedit'}) { $forceedit='edit'; } 91: 92: my %syllabus=&Apache::lonnet::dump('bulletinpage_'.$marker,$dom,$crs); 93: 94: # --------------------------------------- There is such a user, get environment 95: 96: $r->print('</head>'.&Apache::loncommon::bodytag 97: ("Bulletin Board/Discussion",$forcestudent,$addentries,'',$dom, 98: $ENV{'form.register'})); 99: 100: my $allowed=&Apache::lonnet::allowed('mdc',$ENV{'request.course.id'}); 101: 102: my $privileged=$allowed; 103: if (($syllabus{'uploaded.lastmodified'}) && (!$forceedit)) { 104: $forcestudent='student'; 105: } 106: 107: if ($forcestudent) { $allowed=0; } 108: 109: if ($allowed) { 110: $r->print( 111: '<p>'. 112: &Apache::loncommon::help_open_topic('Uploaded_Templates_TextBoxes','Help with filling in text boxes').'<br /><a href="'.$r->uri.'?forcestudent=1"><font size="+1">'.&mt('Show Student View').'</font></a>'. 113: &Apache::loncommon::help_open_topic('Uploaded_Templates_PublicView').'</p>'); 114: } elsif ($privileged) { 115: $r->print('<a href="'.$r->uri.'?forceedit=edit"><font size="+1">' 116: .&mt('Edit').'</font></a>'); 117: } 118: 119: if (($ENV{'form.uploaddoc.filename'}) && 120: ($ENV{'form.storeupl'}) && ($allowed)) { 121: if ($ENV{'form.uploaddoc.filename'}=~/\.(gif|jpg|png|jpeg)$/i) { 122: if ($syllabus{'uploaded.photourl'}) { 123: &Apache::lonnet::removeuploadedurl($syllabus{'uploaded.photourl'}); 124: } 125: $syllabus{'uploaded.photourl'}= 126: &Apache::lonnet::userfileupload('uploaddoc',1,'bulletin'); 127: } 128: $syllabus{'uploaded.lastmodified'}=time; 129: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs); 130: } 131: if (($allowed) && ($ENV{'form.storesyl'})) { 132: foreach (keys %syllabusfields) { 133: my $field=$ENV{'form.'.$_}; 134: $field=~s/\s+$//s; 135: $field=&Apache::lonfeedback::clear_out_html($field,1); 136: $syllabus{$_}=$field; 137: } 138: $syllabus{'uploaded.lastmodified'}=time; 139: &Apache::lonnet::put('bulletinpage_'.$marker,\%syllabus,$dom,$crs); 140: } 141: 142: # ---------------------------------------------------------------- Get syllabus 143: if (($syllabus{'uploaded.lastmodified'}) || ($allowed)) { 144: if ($syllabus{'uploaded.photourl'}) { 145: &Apache::lonnet::allowuploaded('/adm/syllabus', 146: $syllabus{'uploaded.photourl'}); 147: $r->print('<img src="'.$syllabus{'uploaded.photourl'}. 148: '" align="right" />'); 149: } 150: if ($allowed) { 151: $r->print( 152: '<form method="post" enctype="multipart/form-data">'. 153: '<input type="hidden" name="forceedit" value="edit" />'. 154: '<h3>'.&mt('Upload a Photo').'</h3>'. 155: '<input type="file" name="uploaddoc" size="50">'. 156: '<input type="submit" name="storeupl" value="'.&mt('Upload').'">'. 157: '</form><form method="post">'); 158: } 159: foreach (sort keys %syllabusfields) { 160: if (($syllabus{$_}) || ($allowed)) { 161: my $message=$syllabus{$_}; 162: $message=~s/\n/\<br \/\>/g; 163: $message 164: =~s/(https*\:\/\/[^\s]+)/\<a href=\"$1\"\>\<tt\>$1\<\/tt\>\<\/a\>/g; 165: $message=&Apache::lontexconvert::msgtexconverted($message); 166: unless ($_ eq 'aaa_title') { 167: if (($_ ne 'bbb_content') || ($allowed)) { 168: $r->print('<h3>'.$syllabusfields{$_}.'</h3>'); 169: } 170: $r->print('<blockquote>'. 171: $message.'</blockquote>'); 172: if ($allowed) { 173: $r->print('<br /><textarea cols="80" rows="10" name="'.$_.'">'. 174: $syllabus{$_}. 175: '</textarea><input type="submit" name="storesyl" value="'.&mt('Store').'" />'); 176: } 177: } else { 178: $r->print('<h1>'.$message.'</h1>'); 179: if ($allowed) { 180: $r->print( 181: '<br />'.&mt('Topic').'<br /><textarea cols="80" rows="2" name="'.$_.'">'. 182: $syllabus{$_}. 183: '</textarea><input type="submit" name="storesyl" value="'.&mt('Store').'" />'); 184: } 185: } 186: } 187: } 188: if ($allowed) { 189: $r->print('</form>'); 190: } 191: $r->print('</p>'); 192: } else { 193: $r->print('<p>'.&mt('No page information provided.').'</p>'); 194: } 195: $r->print(&Apache::lonfeedback::list_discussion 196: ('board','OPEN','bulletin___'.$marker.'___'. 197: $r->uri,$ENV{'form.previous'}).'</body></html>'); 198: return OK; 199: } 200: 201: 1; 202: __END__