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File:  [LON-CAPA] / loncom / interface / lonevaluate.pm
Revision 1.16: download - view: text, annotated - select for diffs
Thu Feb 17 08:50:20 2005 UTC (19 years, 2 months ago) by albertel
Branches: MAIN
CVS tags: HEAD
- $r->content_type -> loncommon::content_type

# The LearningOnline Network
# Evaluate
#
# $Id: lonevaluate.pm,v 1.16 2005/02/17 08:50:20 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
# (Internal Server Error Handler
#
# (Login Screen
# 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
# 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
#
# 3/1/1 Gerd Kortemeyer)
#
# 3/1,12/6,12/12,12/21,12/22 Gerd Kortemeyer
#
package Apache::lonevaluate;

use strict;
use Apache::lonnet();
use Apache::Constants qw(:common);
use Apache::loncommon();
use Apache::lonenc();

sub handler {
    my $r = shift;
    &Apache::loncommon::content_type($r,'text/html');
    $r->send_http_header;
    return OK if $r->header_only;

    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['postdata']);
    my $feedurl=$ENV{'form.postdata'};
    $feedurl=~s/^http\:\/\///;
    $feedurl=~s/^$ENV{'SERVER_NAME'}//;
    $feedurl=~s/^$ENV{'HTTP_HOST'}//;

    $feedurl=&Apache::lonnet::declutter($feedurl);

    my $title=&Apache::lonnet::gettitle($feedurl);
    my $showurl=&Apache::lonenc::check_encrypt($feedurl);

    my ($rdomain,$rauth)=($feedurl=~/^(\w+)\/(\w+)\//);

    my $prefix=$ENV{'user.name'}.'@'.$ENV{'user.domain'}.'___'.
	$feedurl.'___';

    my @items=('correct','helpful','depth','clear','technical','comments',
               'timestamp');

    my @retrieve=map{ $prefix.$_ } @items;

    my %currenteval=
       &Apache::lonnet::get('nohist_resevaldata',\@retrieve,$rdomain,$rauth);

    my $already=($currenteval{$prefix.'timestamp'} ne '');

    $ENV{'form.timestamp'}=time;

    my $warning='';

    my $bodytag=&Apache::loncommon::bodytag('Evaluate Resource');

    if ($ENV{'form.submiteval'} eq 'true') {
# ------------------------------------------------ User is submitting something
        my $complete=1;
	foreach my $item (@items) {
	    if ($ENV{'form.'.$item}) {
		$currenteval{$prefix.$item}=$ENV{'form.'.$item};
            } elsif ($item ne 'comments') {
                $complete=0;
            }
        }
        if ($complete) {
	    my $showurl=&Apache::lonenc::check_encrypt(&Apache::lonnet::clutter($feedurl));
	    my $html=&Apache::lonxml::xmlbegin();
	    $r->print(<<ENDHEADER);
$html
<head>
<title>Evaluation submitted</title>
<script>
    function goback() {
	if ((window.name=='loncapaclient')) {
            window.location='$showurl';
        } else {
            self.close();
        }
    }
</script>
<meta http-equiv="pragma" content="no-cache"></meta>
</head>
$bodytag
<h1>Thank you for your input!</h1>
ENDHEADER
       $r->print('Storing feedback: '.
           &Apache::lonnet::put('nohist_resevaldata',\%currenteval,$rdomain,$rauth));
           unless ($already) {
	       $r->print('<br>Logging first evaluation');
           }
           $r->print(
            '<script>setTimeout("goback()",2000);</script></body></html>');
           return OK;
        } else {
	    $warning='Please fill out all fields below';
        }
   
    }

# ---------------------------------------------------------- Dial in old values
    my $dialold='';
    my $oldcomments='';

    foreach my $item (@items) {
       unless ($item eq 'comments') {
           unless (($item eq 'timestamp') || 
                   (!defined($currenteval{$prefix.$item}))) {
              $dialold.=
                   'document.evaluation.'.$item.'.selectedIndex='.
                   $currenteval{$prefix.$item}.";\n";
	   }
       } else {
           $oldcomments=$currenteval{$prefix.$item};
       }       
    }
# ------------------------------------------------------- Print out eval screen
    my $standardoptions=(<<ENDOPTIONS);
<option value=0>-</option>
<option value=1>Strongly Disagree</option>
<option value=2>Disagree</option>
<option value=3>Neutral</option>
<option value=4>Agree</option>
<option value=5>Strongly Agree</option>
ENDOPTIONS
    
    my $html=&Apache::lonxml::xmlbegin();
    $r->print(<<ENDDOCUMENT);
$html
<head>
<title>The LearningOnline Network with CAPA</title>
</head>
$bodytag
<tt>$title</tt><p>
<h3><font color="red">$warning</font></h3>
Please rank the following criteria:
<form method=post name=evaluation>
<input type=hidden name=submiteval value=true>
<input type=hidden name=postdata value="$showurl">
The material appears to be correct
<br><select name=correct>
$standardoptions
</select>
<hr>
The material is helpful
<br><select name=helpful>
$standardoptions
</select>
<hr>
The material is covered with sufficient depth
<br><select name=depth>
$standardoptions
</select>
<hr>
The material is presented in a clear way
<br><select name=clear>
$standardoptions
</select>
<hr>
The resource is technically correct 
(loads fast enough, does not produce errors, links work, etc) 
<br><select name=technical>
$standardoptions
</select>
<hr>
Any comments?
<br><textarea name=comments cols=40 rows=5>$oldcomments</textarea>
<script>$dialold</script>
<br><input type=submit value="Submit Evaluation">
</form>
</body>
</html>
ENDDOCUMENT
    return OK;
} 

1;
__END__
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