File:  [LON-CAPA] / loncom / interface / lonpickcourse.pm
Revision 1.12: download - view: text, annotated - select for diffs
Tue Nov 4 16:33:10 2003 UTC (20 years, 7 months ago) by albertel
Branches: MAIN
CVS tags: version_1_1_X, version_1_1_3, version_1_1_2, version_1_1_1, version_1_1_0, version_1_0_99_3, version_1_0_99_2, version_1_0_99_1, version_1_0_99, HEAD
- localize last commit

    1: # The LearningOnline Network
    2: # Pick a course
    3: #
    4: # $Id: lonpickcourse.pm,v 1.12 2003/11/04 16:33:10 albertel 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::lonpickcourse;
   30: 
   31: use strict;
   32: use Apache::Constants qw(:common);
   33: use Apache::loncommon;
   34: use Apache::loncoursedata;
   35: use Apache::lonnet;
   36: use Apache::lonlocal;
   37: 
   38: sub handler {
   39:     my $r = shift;
   40:     &Apache::loncommon::content_type($r,'text/html');
   41:     $r->send_http_header;
   42:     return OK if $r->header_only;
   43: 
   44: # ------------------------------------------------------------ Print the screen
   45:     $r->print(<<ENDDOCUMENT);
   46: <html>
   47: <head>
   48: <title>The LearningOnline Network with CAPA</title>
   49: </head>
   50: ENDDOCUMENT
   51: # Get parameters from query string
   52:     &Apache::loncommon::get_unprocessed_cgi
   53:         ($ENV{'QUERY_STRING'},['domainfilter','descriptfilter',
   54:                  'sincefilter','form','cnumelement','cdomelement']);
   55: # domain filter and selection
   56:     my $domainfilter=$ENV{'form.domainfilter'};
   57:     $domainfilter=~s/\W//g;
   58:     unless ($domainfilter) { $domainfilter=''; }
   59:     my $domainselectform=&Apache::loncommon::select_dom_form($domainfilter,
   60:                                                           'domainfilter',1);
   61: # description filter
   62:     my $descriptfilter=$ENV{'form.descriptfilter'};
   63:     $descriptfilter=~s/[^\w\s]//g;
   64:     unless ($descriptfilter) { $descriptfilter=''; }
   65: 
   66: # last course activity filter and selection
   67:     my $sincefilter=$ENV{'form.sincefilter'};
   68:     $sincefilter=~s/[^\d-]//g;
   69:     unless ($sincefilter) { $sincefilter=-1; }
   70:     my $sincefilterform=&Apache::loncommon::select_form($sincefilter,
   71:        'sincefilter',('-1'=>'',
   72:                       '86400' => 'today',
   73:                       '604800' => 'last week',
   74:                       '2592000' => 'last month',
   75:                       '7776000' => 'last three months',
   76:                       '15552000' => 'last six months',
   77:                       '31104000' => 'last year',
   78:                       'select_form_order' =>
   79:                       ['-1','86400','604800','2592000','7776000',
   80: 		      '15552000','31104000']));
   81:        
   82:     $r->print(&Apache::loncommon::bodytag("Selecting a Course"));
   83:     my %lt=&Apache::lonlocal::texthash(
   84: 				       'cac' => 'Course Activity',
   85: 				       'cde' => 'Course Description',
   86: 				       'cdo' => 'Course Domain');
   87:     $r->print(<<ENDSCRIPT);
   88: <script>
   89: function gochoose(cname,cdom) {
   90:     opener.document.$ENV{'form.form'}.$ENV{'form.cnumelement'}.value=cname;
   91:     var slct=opener.document.$ENV{'form.form'}.$ENV{'form.cdomelement'};
   92:     var i;
   93:     for (i=0;i<slct.length;i++) {
   94:         if (slct.options[i].value==cdom) { slct.selectedIndex=i; }
   95:     }
   96:     self.close();
   97: }
   98: </script>
   99: <form method="post">
  100: <input type="hidden" name="cnumelement" value="$ENV{'form.cnumelement'}" />
  101: <input type="hidden" name="cdomelement" value="$ENV{'form.cdomelement'}" />
  102: <input type="hidden" name="form" value="$ENV{'form.form'}" />
  103: 
  104: $lt{'cac'}: $sincefilterform
  105: <br />
  106: $lt{'cdo'}: $domainselectform
  107: <br />
  108: $lt{'cde'}:
  109: <input type="text" name="descriptfilter" size="40" value="$descriptfilter" />
  110: <p><input type="submit" name="gosearch" value="Search" /></p>
  111: </form>
  112: <hr />
  113: ENDSCRIPT
  114: # ---------------------------------------------------------------- Get the data
  115:     if ($ENV{'form.gosearch'}) {
  116:         $r->print(&mt('Searching').' ...<br />&nbsp;<br />');
  117:         $r->rflush();
  118: 	unless ($descriptfilter) { $descriptfilter='.'; }
  119:         my $timefilter=($sincefilter==-1?1:time-$sincefilter);
  120: 	my %courses=
  121: 	    &Apache::lonnet::courseiddump
  122: 	    ($domainfilter,$descriptfilter,$timefilter);
  123: 	$r->print('<form>');
  124: 	my %by_descrip;
  125: 	foreach my $course (keys %courses) {
  126: 	    $by_descrip{lc($courses{$course})}=$course;
  127: 	}
  128: 	foreach my $description (sort(keys(%by_descrip))) {
  129: 	    my $course=$by_descrip{$description};
  130: 	    my ($cdom,$cnum)=split(/\_/,$course);
  131: 	    $r->print('<input type="button" value="Select" onClick="gochoose('.
  132: 		  "'".$cnum."','".$cdom."')".'" /> '.$courses{$course}.' ('.
  133: 		  ($Apache::lonnet::domaindescription{$cdom}?
  134:                    $Apache::lonnet::domaindescription{$cdom}:$cdom).
  135:                  ")<br />\n");
  136: 	}
  137: 	if (!%courses) { $r->print(&mt('None found')); }
  138:         $r->print('</form>');
  139:     }
  140:     $r->print('</body></html>');
  141:     return OK;
  142: } 
  143: 
  144: 1;
  145: __END__

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