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    1: # The LearningOnline Network
    2: # Evaluate
    3: #
    4: # $Id: lonevaluate.pm,v 1.19 2006/03/19 22:22:49 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::lonevaluate;
   30: 
   31: use strict;
   32: use Apache::lonnet;
   33: use Apache::Constants qw(:common);
   34: use Apache::loncommon();
   35: use Apache::lonenc();
   36: 
   37: sub handler {
   38:     my $r = shift;
   39:     &Apache::loncommon::content_type($r,'text/html');
   40:     &Apache::loncommon::no_cache($r);
   41:     
   42:     $r->send_http_header;
   43:     return OK if $r->header_only;
   44: 
   45:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['postdata']);
   46:     my $feedurl=$env{'form.postdata'};
   47:     $feedurl=~s/^http\:\/\///;
   48:     $feedurl=~s/^$ENV{'SERVER_NAME'}//;
   49:     $feedurl=~s/^$ENV{'HTTP_HOST'}//;
   50: 
   51:     $feedurl=&Apache::lonnet::declutter($feedurl);
   52: 
   53:     my $title=&Apache::lonnet::gettitle($feedurl);
   54:     my $showurl=&Apache::lonenc::check_encrypt($feedurl);
   55: 
   56:     my ($rdomain,$rauth)=($feedurl=~/^(\w+)\/(\w+)\//);
   57: 
   58:     my $prefix=$env{'user.name'}.'@'.$env{'user.domain'}.'___'.
   59: 	$feedurl.'___';
   60: 
   61:     my @items=('correct','helpful','depth','clear','technical','comments',
   62:                'timestamp');
   63: 
   64:     my @retrieve=map{ $prefix.$_ } @items;
   65: 
   66:     my %currenteval=
   67:        &Apache::lonnet::get('nohist_resevaldata',\@retrieve,$rdomain,$rauth);
   68: 
   69:     my $already=($currenteval{$prefix.'timestamp'} ne '');
   70: 
   71:     $env{'form.timestamp'}=time;
   72: 
   73:     my $warning='';
   74: 
   75:     if ($env{'form.submiteval'} eq 'true') {
   76: # ------------------------------------------------ User is submitting something
   77:         my $complete=1;
   78: 	foreach my $item (@items) {
   79: 	    if ($env{'form.'.$item}) {
   80: 		$currenteval{$prefix.$item}=$env{'form.'.$item};
   81:             } elsif ($item ne 'comments') {
   82:                 $complete=0;
   83:             }
   84:         }
   85:         if ($complete) {
   86: 	    my $showurl=&Apache::lonenc::check_encrypt(&Apache::lonnet::clutter($feedurl));
   87: 	    my $js =<<ENDJS;
   88: <script type="text/javascript">
   89:     function goback() {
   90: 	if ((window.name=='loncapaclient')) {
   91:             window.location='$showurl';
   92:         } else {
   93:             self.close();
   94:         }
   95:     }
   96: </script>
   97: ENDJS
   98: 
   99:             my $start_page = 
  100: 	        &Apache::loncommon::start_page('Evaluate Resource',$js);
  101: 	    $r->print(<<ENDHEADER);
  102: $start_page
  103: <h1>Thank you for your input!</h1>
  104: ENDHEADER
  105:        $r->print('Storing feedback: '.
  106:            &Apache::lonnet::put('nohist_resevaldata',\%currenteval,$rdomain,$rauth));
  107:            unless ($already) {
  108: 	       $r->print('<br />Logging first evaluation');
  109:            }
  110:            $r->print(
  111:             '<script type="text/javascript">setTimeout("goback()",2000);</script>'.&Apache::loncommon::end_page());
  112:            return OK;
  113:         } else {
  114: 	    $warning='Please fill out all fields below';
  115:         }
  116:    
  117:     }
  118: 
  119: # ---------------------------------------------------------- Dial in old values
  120:     my $dialold='';
  121:     my $oldcomments='';
  122: 
  123:     foreach my $item (@items) {
  124:        unless ($item eq 'comments') {
  125:            unless (($item eq 'timestamp') || 
  126:                    (!defined($currenteval{$prefix.$item}))) {
  127:               $dialold.=
  128:                    'document.evaluation.'.$item.'.selectedIndex='.
  129:                    $currenteval{$prefix.$item}.";\n";
  130: 	   }
  131:        } else {
  132:            $oldcomments=$currenteval{$prefix.$item};
  133:        }       
  134:     }
  135: # ------------------------------------------------------- Print out eval screen
  136:     my $standardoptions=(<<ENDOPTIONS);
  137: <option value="0">-</option>
  138: <option value="1">Strongly Disagree</option>
  139: <option value="2">Disagree</option>
  140: <option value="3">Neutral</option>
  141: <option value="4">Agree</option>
  142: <option value="5">Strongly Agree</option>
  143: ENDOPTIONS
  144:     
  145:     my $start_page = &Apache::loncommon::start_page('Evaluate Resource');
  146:     my $end_page   = &Apache::loncommon::end_page();
  147:     $r->print(<<ENDDOCUMENT);
  148: $start_page
  149: <tt>$title</tt><br /><br />
  150: <h3><font color="red">$warning</font></h3>
  151: Please rank the following criteria:
  152: <form method="post" name="evaluation" action="/adm/evaluate">
  153: <input type="hidden" name="submiteval" value="true" />
  154: <input type="hidden" name="postdata" value="$showurl" />
  155: The material appears to be correct
  156: <br /><select name="correct">
  157: $standardoptions
  158: </select>
  159: <hr />
  160: The material is helpful
  161: <br /><select name="helpful">
  162: $standardoptions
  163: </select>
  164: <hr />
  165: The material is covered with sufficient depth
  166: <br /><select name="depth">
  167: $standardoptions
  168: </select>
  169: <hr />
  170: The material is presented in a clear way
  171: <br /><select name="clear">
  172: $standardoptions
  173: </select>
  174: <hr />
  175: The resource is technically correct 
  176: (loads fast enough, does not produce errors, links work, etc) 
  177: <br /><select name="technical">
  178: $standardoptions
  179: </select>
  180: <hr />
  181: Any comments?
  182: <br /><textarea name="comments" cols="40" rows="5">$oldcomments</textarea>
  183: <script type="text/javascript">$dialold</script>
  184: <br /><input type="submit" value="Submit Evaluation" />
  185: </form>
  186: $end_page
  187: ENDDOCUMENT
  188:     return OK;
  189: } 
  190: 
  191: 1;
  192: __END__