Annotation of loncom/interface/lonannounce.pm, revision 1.3

1.1       www         1: # The LearningOnline Network
1.2       www         2: # Announce
1.1       www         3: #
1.3     ! www         4: # $Id: $
1.1       www         5: #
1.3     ! www         6: # Copyright Michigan State University Board of Trustees
1.1       www         7: #
1.3     ! www         8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
1.1       www         9: #
1.3     ! www        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.
1.1       www        14: #
1.3     ! www        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: 
1.2       www        29: package Apache::lonannounce;
1.1       www        30: 
                     31: use strict;
                     32: use Apache::Constants qw(:common);
1.3     ! www        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{$_};
        !            44:         }
        !            45:     }
        !            46:     return %returnhash;
        !            47: }
        !            48: 
        !            49: sub emptycell {
        !            50:     return '<td bgcolor="#AAAAAA">&nbsp;</td>';
        !            51: }
        !            52: 
        !            53: sub normalcell {
        !            54:     my ($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: }
1.1       www        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: 
1.3     ! www        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
1.1       www       112:     $r->print(<<ENDDOCUMENT);
                    113: <html>
                    114: <head>
                    115: <title>The LearningOnline Network with CAPA</title>
1.3     ! www       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>
1.1       www       166: </head>
                    167: <body bgcolor="#FFFFFF">
1.3     ! www       168: <h1>Announcements</h1>
1.1       www       169: ENDDOCUMENT
1.3     ! www       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>');
1.1       www       260:     return OK;
                    261: } 
                    262: 
                    263: 1;
                    264: __END__

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