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File:  [LON-CAPA] / loncom / interface / lonpickcourse.pm
Revision 1.6: download - view: text, annotated - select for diffs
Thu Mar 27 20:56:30 2003 UTC (21 years, 3 months ago) by www
Branches: MAIN
CVS tags: HEAD
First use of "pick-a-course" - does not set domain yet.

    1: # The LearningOnline Network
    2: # Pick a course
    3: #
    4: # $Id: lonpickcourse.pm,v 1.6 2003/03/27 20:56:30 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::lonpickcourse;
   30: 
   31: use strict;
   32: use Apache::Constants qw(:common);
   33: use Apache::loncommon;
   34: use Apache::loncoursedata;
   35: use Apache::lonnet;
   36: 
   37: sub handler {
   38:     my $r = shift;
   39:     $r->content_type('text/html');
   40:     $r->send_http_header;
   41:     return OK if $r->header_only;
   42: 
   43: # ------------------------------------------------------------ Print the screen
   44:     $r->print(<<ENDDOCUMENT);
   45: <html>
   46: <head>
   47: <title>The LearningOnline Network with CAPA</title>
   48: </head>
   49: ENDDOCUMENT
   50: # Get parameters from query string
   51:     &Apache::loncommon::get_unprocessed_cgi
   52:         ($ENV{'QUERY_STRING'},['domainfilter','descriptfilter',
   53:                  'sincefilter','form','cnumelement','cdomelement']);
   54: # domain filter and selection
   55:     my $domainfilter=$ENV{'form.domainfilter'};
   56:     $domainfilter=~s/\W//g;
   57:     unless ($domainfilter) { $domainfilter=''; }
   58:     my $domainselectform=&Apache::loncommon::select_dom_form($domainfilter,
   59:                                                           'domainfilter',1);
   60: # description filter
   61:     my $descriptfilter=$ENV{'form.descriptfilter'};
   62:     $descriptfilter=~s/[^\w\s]//g;
   63:     unless ($descriptfilter) { $descriptfilter=''; }
   64: 
   65: # last course activity filter and selection
   66:     my $sincefilter=$ENV{'form.sincefilter'};
   67:     $sincefilter=~s/[^\d-]//g;
   68:     unless ($sincefilter) { $sincefilter=-1; }
   69:     my $sincefilterform=&Apache::loncommon::select_form($sincefilter,
   70:        'sincefilter',('-1'=>'',
   71:                       '86400' => 'today',
   72:                       '604800' => 'last week',
   73:                       '2592000' => 'last month',
   74:                       '7776000' => 'last three months',
   75:                       '15552000' => 'last six months',
   76:                       '31104000' => 'last year'));
   77:        
   78:     $r->print(&Apache::loncommon::bodytag("Selecting a Course"));
   79:     $r->print(<<ENDSCRIPT);
   80: <script>
   81: function gochoose(cname,cdom) {
   82:     opener.document.$ENV{'form.form'}.$ENV{'form.cnumelement'}.value=cname;
   83:     var slct=opener.document.$ENV{'form.form'}.$ENV{'form.cdomelement'};
   84:     var i;
   85:     for (i=0;i<slct.length;i++) {
   86:         if (slct[i]==cdom) { slct.selectedIndex=i; }
   87:     }
   88:     self.close();
   89: }
   90: </script>
   91: <form method="post">
   92: <input type="hidden" name="cnumelement" value="$ENV{'form.cnumelement'}" />
   93: <input type="hidden" name="cdomelement" value="$ENV{'form.cdomelement'}" />
   94: <input type="hidden" name="form" value="$ENV{'form.form'}" />
   95: 
   96: Course Activity: $sincefilterform
   97: <br />
   98: Course Domain: $domainselectform
   99: <br />
  100: Course Description:
  101: <input type="text" name="descriptfilter" size="40" value="$descriptfilter" />
  102: <p><input type="submit" name="gosearch" value="Search" /></p>
  103: </form>
  104: <hr />
  105: ENDSCRIPT
  106: # ---------------------------------------------------------------- Get the data
  107:     if ($ENV{'form.gosearch'}) {
  108:         $r->print('Searching ...<br />&nbsp;<br />');
  109:         $r->rflush();
  110: 	unless ($descriptfilter) { $descriptfilter='.'; }
  111:         my $timefilter=($sincefilter==-1?1:time-$sincefilter);
  112: 	my %courses=
  113: 	    &Apache::lonnet::courseiddump
  114: 	    ($domainfilter,$descriptfilter,$timefilter);
  115: 	$r->print('<form>');
  116: 	foreach (keys %courses) {
  117: 	    my ($cdom,$cnum)=split(/\_/,$_);
  118: 	    $r->print('<input type="button" value="Select" onClick="gochoose('.
  119: 		  "'".$cnum."','".$cdom."')".'" /> '.$courses{$_}.' ('.
  120: 		  ($Apache::lonnet::domaindescription{$cdom}?
  121:                    $Apache::lonnet::domaindescription{$cdom}:$cdom).
  122:                  ")<br />\n");
  123: 	}
  124:         $r->print('</form>');
  125:     }
  126:     $r->print('</body></html>');
  127:     return OK;
  128: } 
  129: 
  130: 1;
  131: __END__
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