1: # The LearningOnline Network
2: # Announce
3: #
4: # $Id: lonannounce.pm,v 1.3 2002/08/08 13:44:17 www 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::lonannounce;
30:
31: use strict;
32: use Apache::Constants qw(:common);
33: use Apache::loncommon;
34:
35: sub readcalendar {
36: my $courseid=shift;
37: my $coursenum=$ENV{'course.'.$courseid.'.num'};
38: my $coursedom=$ENV{'course.'.$courseid.'.domain'};
39: my %thiscal=&Apache::lonnet::dump('calendar',$coursedom,$coursenum);
40: my %returnhash=();
41: foreach (keys %thiscal) {
42: unless (($_=~/^error\:/) || ($thiscal{$_}=~/^error\:/)) {
43: $returnhash{$courseid.'@'.$_}=$thiscal{$_};
44: }
45: }
46: return %returnhash;
47: }
48:
49: sub emptycell {
50: return '<td bgcolor="#AAAAAA"> </td>';
51: }
52:
53: sub normalcell {
54: my ($day,$text)=@_;
55: return '<td><b>'.$day.'</b><br>'.$text.'</td>';
56: }
57:
58: sub nextday {
59: my %th=@_;
60: $th{'day'}++;
61: return (&Apache::loncommon::maketime(%th),$th{'month'});
62: }
63:
64: sub showday {
65: my ($tk,%allcal)=@_;
66: my %th=&Apache::loncommon::timehash($tk);
67: my ($nextday,$nextmonth)=&nextday(%th);
68: my $outp='';
69: foreach (keys %allcal) {
70: my ($course,$startdate,$enddate)=($_=~/^(\w+)\@(\d+)\_(\d+)$/);
71: print $course.' '.localtime($startdate).' '.localtime($enddate).
72: localtime($tk).' '.localtime($nextday).'<br>';
73: if (($startdate>$tk) && ($enddate<$nextday)) {
74: $outp.='___&&&___'.$course.'@'.$allcal{$_};
75: }
76: }
77: return ($nextday,$nextmonth,&normalcell($th{'day'},$outp));
78: }
79:
80: sub handler {
81: my $r = shift;
82: $r->content_type('text/html');
83: $r->send_http_header;
84: return OK if $r->header_only;
85:
86: # ---------------------------------------------------------- Get time right now
87: my $today=time;
88: my %todayhash=&Apache::loncommon::timehash($today);
89:
90: # ---------------------------------------------------------- Get month and year
91: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
92: ['month','year']);
93: # ----------------------------------------------------- Summarize all calendars
94: my %allcal=();
95: foreach (&Apache::loncommon::findallcourses()) {
96: %allcal=(%allcal,&readcalendar($_));
97: }
98: # --------------------------------------------------- Decide what month to show
99: my $year=$todayhash{'year'};
100: if ($ENV{'form.year'}) { $year=$ENV{'form.year'}; }
101: my $month=$todayhash{'month'};
102: if ($ENV{'form.month'}) { $month=$ENV{'form.month'}; }
103: # --------------------------------------------- Find out first day of the month
104:
105: my %firstday=&Apache::loncommon::timehash(
106: &Apache::loncommon::maketime( 'day' => 1, 'month'=> $month,
107: 'year' => $year, 'hours' => 0,
108: 'minutes' => 0, 'seconds' => 0,
109: 'dlsav' => $todayhash{'dlsav'} ));
110: my $weekday=$firstday{'weekday'};
111: # ------------------------------------------------------------ Print the screen
112: $r->print(<<ENDDOCUMENT);
113: <html>
114: <head>
115: <title>The LearningOnline Network with CAPA</title>
116: <script>
117: function pclose() {
118: parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
119: "height=350,width=350,scrollbars=no,menubar=no");
120: parmwin.close();
121: }
122:
123: function pjump(type,dis,value,marker,ret,call) {
124: parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
125: +"&value="+escape(value)+"&marker="+escape(marker)
126: +"&return="+escape(ret)
127: +"&call="+escape(call)+"&name="+escape(dis),"LONCAPAparms",
128: "height=350,width=350,scrollbars=no,menubar=no");
129:
130: }
131:
132: function dateset() {
133: if (document.anno.pres_marker.value=='end') {
134: document.anno.enddate.value=
135: document.anno.pres_value.value;
136: }
137: if (document.anno.pres_marker.value=='start') {
138: document.anno.startdate.value=
139: document.anno.pres_value.value;
140: }
141: pclose();
142: }
143:
144: function trysubmit() {
145: if (document.anno.startdate.value=='') {
146: alert("Announcements must have a starting date");
147: return '';
148: }
149: if (document.anno.enddate.value=='') {
150: alert("Announcements must have a starting date");
151: return '';
152: }
153: if (document.anno.startdate.value>document.anno.enddate.value) {
154: alert("Starting date is later than ending date");
155: return '';
156: }
157: document.anno.action.value="new";
158: document.anno.submit();
159: }
160:
161: function removesub() {
162: document.anno.action.value="del";
163: document.anno.submit();
164: }
165: </script>
166: </head>
167: <body bgcolor="#FFFFFF">
168: <h1>Announcements</h1>
169: ENDDOCUMENT
170:
171: # does this user have privileges to post, etc?
172: my $allowed=0;
173: if ($ENV{'request.course.id'}) {
174: $allowed=&Apache::lonnet::allowed('srm',$ENV{'request.course.id'});
175: }
176:
177: if ($allowed) {
178: my $coursenum=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
179: my $coursedom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
180: # ----------------------------------------------------- Store new submitted one
181: if ($ENV{'form.action'} eq 'new') {
182: &Apache::lonnet::put('calendar',{
183: $ENV{'form.startdate'}.'_'.$ENV{'form.enddate'} =>
184: $ENV{'form.msg'} },$coursedom,$coursenum);
185: }
186: # ---------------------------------------------------------------- Remove items
187: if ($ENV{'form.action'} eq 'del') {
188: my @delwhich=();
189: foreach (keys %ENV) {
190: if ($_=~/^form\.remove\_(.+)$/) {
191: push(@delwhich,$1);
192: }
193: }
194: &Apache::lonnet::del('calendar',\@delwhich,$coursedom,$coursenum);
195: }
196: # -------------------------------------------------------- Form to post new one
197: my %tomorrowhash=%todayhash;
198: $tomorrowhash{'day'}++;
199: my $tomorrow=&Apache::loncommon::maketime(%tomorrowhash);
200:
201: $r->print(<<ENDFORM);
202: <form name="anno" method="post">
203: <input type="hidden" value='' name="action" >
204: <input type="hidden" value='' name="pres_value" >
205: <input type="hidden" value='' name="pres_type" >
206: <input type="hidden" value='' name="pres_marker" >
207: <input type="hidden" value='$today' name="startdate" >
208: <input type="hidden" value='$tomorrow' name="enddate" >
209: <a
210: href="javascript:pjump('date_start','Starting Date',document.anno.startdate.value,'start','anno.pres','dateset');"
211: >Set Starting Date</a>
212: <a
213: href="javascript:pjump('date_end','Ending Date',document.anno.enddate.value,'end','anno.pres','dateset');"
214: >Set Ending Date</a><p>
215: <textarea name="msg" rows="4" cols="60">
216: </textarea>
217: <input type="button" onClick="trysubmit()" value="Post Announcement"><hr>
218: <input type="button" onClick="removesub()" value="Remove Marked"><hr>
219: ENDFORM
220: }
221: my ($pm,$py,$fm,$fy)=($month-1,$year,$month+1,$year);
222: if ($pm<1) { ($pm,$py)=(12,$year-1); }
223: if ($fm>12){ ($fm,$fy)=(1,$year+1); }
224: $r->print('<h1>'.('','January','February','March','April','May',
225: 'June','July','August','September','October',
226: 'November','December')[$month].' '.$year.'</h1>'.
227: '<a href="/adm/announcements?month='.$pm.'&year='.$py.'">Previous Month</a> '.
228: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.'">Next Month</a><p>'.
229: '<table border="2" cols="7" rows="5"><tr><th>Sun</th><th>Mon</th>'.
230: '<th>Tue</th><th>Wed</th><th>Thu</th><th>Fri</th><th>Sat</th>');
231:
232: my $tk=&Apache::loncommon::maketime(%firstday);
233: my $outp;
234: my $nm;
235:
236: # ---------------------------------------------------------------- Actual table
237: $r->print('<tr>');
238: for (my $i=0;$i<$weekday;$i++) { $r->print(&emptycell); }
239: for (my $i=$weekday;$i<=6;$i++) {
240: ($tk,$nm,$outp)=&showday($tk,%allcal);
241: $r->print($outp);
242: }
243: $r->print('</tr>');
244:
245: for (my $k=0;$k<=3;$k++) {
246: $r->print('<tr>');
247: for (my $i=0;$i<=6;$i++) {
248: ($tk,$nm,$outp)=&showday($tk,%allcal);
249: if ($month!=$nm) { $outp=&emptycell; }
250: $r->print($outp);
251: }
252: $r->print('</tr>');
253: }
254: # ------------------------------------------------------------------- End table
255: if ($allowed) { $r->print('</form>'); }
256: $r->print('</table><p>'.
257: '<a href="/adm/announcements?month='.$pm.'&year='.$py.'">Previous Month</a> '.
258: '<a href="/adm/announcements?month='.$fm.'&year='.$fy.'">Next Month</a><p>'.
259: '</body></html>');
260: return OK;
261: }
262:
263: 1;
264: __END__
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