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File:  [LON-CAPA] / loncom / homework / externalresponse.pm
Revision 1.3: download - view: text, annotated - select for diffs
Tue Apr 8 02:40:56 2003 UTC (21 years, 1 month ago) by albertel
Branches: MAIN
CVS tags: version_1_3_X, version_1_3_3, version_1_3_2, version_1_3_1, version_1_3_0, version_1_2_X, version_1_2_99_1, version_1_2_99_0, version_1_2_1, version_1_2_0, version_1_1_X, version_1_1_99_5, version_1_1_99_4, version_1_1_99_3, version_1_1_99_2, version_1_1_99_1, version_1_1_99_0, 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, version_1_0_3, version_1_0_2, version_1_0_1, version_1_0_0, version_0_99_5, version_0_99_4, version_0_99_3, version_0_99_2, version_0_99_1, version_0_99_0, conference_2003, HEAD
- brining consitancy to the homework input fields

    1: # The LearningOnline Network with CAPA
    2: # external style responses
    3: #
    4: # $Id: externalresponse.pm,v 1.3 2003/04/08 02:40:56 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: # 1/26 Guy
   29: package Apache::externalresponse;
   30: use strict;
   31: use HTTP::Request::Common;
   32: use Apache::loncapagrade;
   33: 
   34: BEGIN {
   35:   &Apache::lonxml::register('Apache::externalresponse',('externalresponse'));
   36: }
   37: 
   38: #FIXME
   39: # send of response params and there current values
   40: # accept a string to be printed out (Where does it get shown?) (.message)
   41: # need to get a correct answer from somewhere (probably here since randomized)
   42: sub start_externalresponse {
   43:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   44:   my $result;
   45:   my $id = &Apache::response::start_response($parstack,$safeeval);
   46:   return $result;
   47: }
   48: 
   49: sub end_externalresponse {
   50:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   51:   my $result;
   52:   if ($target eq 'grade') {
   53:     if ( defined $ENV{'form.submitted'}) {
   54:       my $id = $Apache::inputtags::response['-1'];
   55:       my $response = $ENV{'form.HWVAL_'.$id};
   56:       if ( $response =~ /[^\s]/) {
   57: 	my $url = &Apache::lonxml::get_param('url',$parstack,$safeeval);
   58: 	my $answer = &Apache::lonxml::get_param('answer',$parstack,$safeeval);
   59: 	my %form = &Apache::lonxml::get_param_var('form',$parstack,$safeeval);
   60: 	$form{'LONCAPA_student_response'}=$response;
   61: 	$form{'LONCAPA_correct_answer'}=$answer;
   62: 	$form{'LONCAPA_language'}=
   63: 	  &Apache::lonnet::metadata($ENV{'REQUEST_URI'},'language');
   64: 	&Apache::lonxml::debug("Asking $url, with:");
   65: 	&Apache::lonhomework::showhash(%form);
   66: 	my $ua = LWP::UserAgent->new;
   67: 	my $res = $ua->request(POST $url, \%form);
   68: 	my $partid = $Apache::inputtags::part;
   69: 	my $id = $Apache::inputtags::response['-1'];
   70: 	my %previous = &Apache::response::check_for_previous($response,
   71: 							     $partid,$id);
   72: 	%Apache::loncapagrade::results=();
   73:         if ($res->{_rc} != '200') {
   74: 	  $Apache::loncapagrade::results{'awardetail'}='ERROR';
   75: 	} else {
   76: 	  &Apache::lonxml::register('Apache::loncapagrade',('loncapagrade'));
   77: 	  my $result=&Apache::scripttag::xmlparse($res->{_content});
   78: 	  &Apache::lonxml::debug("Got a result of :$result:");
   79: 	}
   80: 	foreach my $key (%Apache::loncapagrade::results) {
   81: 	  $Apache::lonhomework::results{"resource.$partid.$id.$key"}=
   82: 	    $Apache::loncapagrade::results{$key};
   83: 	}
   84: 	&Apache::response::handle_previous(\%previous,
   85: 		    $Apache::loncapagrade::results{'awarddetail'});
   86: 	&Apache::lonxml::debug("response of");
   87: 	&Apache::lonhomework::showhash(%$res);
   88: 	&Apache::lonhomework::showhash(%Apache::loncapagrade::results);
   89:       }
   90:     }
   91:   }
   92:   &Apache::response::end_response;
   93:   return $result;
   94: }
   95: 
   96: 1;
   97: __END__
   98: 
   99:
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