Annotation of loncom/homework/externalresponse.pm, revision 1.17
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # external style responses
3: #
1.17 ! www 4: # $Id: externalresponse.pm,v 1.16 2010/12/20 15:54:03 www Exp $
1.1 albertel 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: #
1.6 albertel 28:
1.14 jms 29:
30:
1.1 albertel 31: package Apache::externalresponse;
32: use strict;
33: use HTTP::Request::Common;
34: use Apache::loncapagrade;
1.4 albertel 35: use Apache::lonnet;
1.17 ! www 36: use Apache::lonlocal;
1.1 albertel 37:
38: BEGIN {
1.5 albertel 39: &Apache::lonxml::register('Apache::externalresponse',('externalresponse'));
1.1 albertel 40: }
41:
1.14 jms 42: =pod
43:
1.15 jms 44: =head1 FIXME (start_externalresponse)
1.14 jms 45:
46: send of response params and their current values (form good enough? what parameters to send?)
47: Need to get returned message displayed
48:
49: =cut
50:
51:
1.1 albertel 52: sub start_externalresponse {
1.5 albertel 53: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
54: my $result;
55: my $id = &Apache::response::start_response($parstack,$safeeval);
1.10 albertel 56:
57: if ($target eq 'edit') {
58: $result .=&Apache::edit::tag_start($target,$token);
59: $result .=&Apache::edit::text_arg('URL:','url',$token,60).'<br />';
1.17 ! www 60: $result .=&Apache::edit::text_arg(&mt('Answer:'),'answer',$token);
! 61: $result .=&Apache::edit::text_arg(&mt('Form:'),'form',$token).'<br />';
! 62: $result .=&Apache::edit::text_arg(&mt('Answer display:'),'answerdisplay',$token,80);
1.10 albertel 63: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
64: } elsif ($target eq 'modified') {
65: my $constructtag =
66: &Apache::edit::get_new_args($token,$parstack,$safeeval,
1.17 ! www 67: 'answerdisplay','answer','form','url');
1.10 albertel 68: if ($constructtag) {
69: $result = &Apache::edit::rebuild_tag($token);
70: }
71: } elsif ($target eq 'meta') {
72: $result=&Apache::response::meta_package_write('externalresponse');
73: }
74:
1.5 albertel 75: return $result;
1.1 albertel 76: }
77:
78: sub end_externalresponse {
1.5 albertel 79: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
80: my $result;
1.6 albertel 81: my $part=$Apache::inputtags::part;
82: my $id = $Apache::inputtags::response['-1'];
83: my $increment = 1;
1.5 albertel 84: if ($target eq 'grade') {
1.6 albertel 85: if ( &Apache::response::submitted('scantron') ) {
86: my $increment=&Apache::response::scored_response($part,$id);
87: } elsif ( &Apache::response::submitted() ) {
88: my $response = &Apache::response::getresponse();
1.5 albertel 89: if ( $response =~ /[^\s]/) {
90: my $url = &Apache::lonxml::get_param('url',$parstack,$safeeval);
91: my $answer = &Apache::lonxml::get_param('answer',$parstack,$safeeval);
92: my %form = &Apache::lonxml::get_param_var('form',$parstack,$safeeval);
93: $form{'LONCAPA_student_response'}=$response;
94: $form{'LONCAPA_correct_answer'}=$answer;
95: $form{'LONCAPA_language'}=
96: &Apache::lonnet::metadata($ENV{'REQUEST_URI'},'language');
97: &Apache::lonxml::debug("Asking $url, with:");
98: &Apache::lonhomework::showhash(%form);
99: my $ua = LWP::UserAgent->new;
100: my $res = $ua->request(POST $url, \%form);
101: my %previous = &Apache::response::check_for_previous($response,
1.6 albertel 102: $part,$id);
1.5 albertel 103: %Apache::loncapagrade::results=();
1.6 albertel 104: $Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
1.9 albertel 105: if ($res->is_error()) {
1.6 albertel 106: $Apache::loncapagrade::results{'awarddetail'}='ERROR';
1.5 albertel 107: } else {
1.6 albertel 108: &Apache::lonxml::register('Apache::loncapagrade',
109: ('loncapagrade'));
1.8 albertel 110: @Apache::scripttag::parser_env = @_;
1.5 albertel 111: my $result=&Apache::scripttag::xmlparse($res->{_content});
112: &Apache::lonxml::debug("Got a result of :$result:");
113: }
1.6 albertel 114: foreach my $key (keys(%Apache::loncapagrade::results)) {
115: $Apache::lonhomework::results{"resource.$part.$id.$key"}=
1.5 albertel 116: $Apache::loncapagrade::results{$key};
117: }
1.16 www 118: $Apache::externalresponse::message=$Apache::loncapagrade::results{'message'};
1.5 albertel 119: &Apache::response::handle_previous(\%previous,
120: $Apache::loncapagrade::results{'awarddetail'});
121: &Apache::lonxml::debug("response of");
122: &Apache::lonhomework::showhash(%$res);
1.6 albertel 123: &Apache::lonxml::debug("capagrade of");
1.5 albertel 124: &Apache::lonhomework::showhash(%Apache::loncapagrade::results);
1.6 albertel 125: &Apache::lonxml::debug("results of");
126: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1.5 albertel 127: }
1.1 albertel 128: }
129: }
1.7 albertel 130: if ($target eq 'web') {
131: &Apache::response::setup_prior_tries_hash(\&format_prior_response);
1.17 ! www 132: if (&Apache::response::show_answer()) {
! 133: $result.='<table border="1"><tr><th>'.&mt('Your answer:').'</th><th>'.&mt("Computer's answer information").'</th></tr><tr><td><pre>'.
! 134: $Apache::lonhomework::history{"resource.$part.$id.submission"}.
! 135: '</pre></td><td><pre>'.&Apache::lonxml::get_param('answerdisplay',$parstack,$safeeval).
! 136: '</pre></td></tr></table>';
! 137: }
1.16 www 138: if ($Apache::externalresponse::message) {
1.17 ! www 139: $result.='<br /><table><tr><td bgcolor="#FFFFAA">'.$Apache::externalresponse::message.'</td></tr></table><br />';
1.16 www 140: }
141: $Apache::externalresponse::message='';
1.7 albertel 142: }
143:
1.6 albertel 144: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
145: $target eq 'tex' || $target eq 'analyze') {
1.12 foxr 146: &Apache::lonxml::increment_counter($increment, "$part.$id");
1.11 foxr 147:
148: if ($target eq 'analyze') {
1.13 raeburn 149: $Apache::lonhomework::analyze{"$part.$id.type"} = 'externalresponse';
1.11 foxr 150: &Apache::lonhomework::set_bubble_lines();
151: }
1.6 albertel 152: }
153: &Apache::response::end_response();
1.5 albertel 154: return $result;
1.1 albertel 155: }
156:
1.7 albertel 157: sub format_prior_response {
158: my ($mode,$answer) =@_;
159: return '<span class="LC_prior_external">'.
160: &HTML::Entities::encode($answer,'"<>&').'</span>';
161: }
162:
1.1 albertel 163: 1;
164: __END__
165:
166:
1.15 jms 167: =pod
168:
169: =head1 NAME
170:
171: Apache::externalresponse.pm
172:
173: =head1 SYNOPSIS
174:
175: Handler to evaluate externally graded responses.
176:
177: This is part of the LearningOnline Network with CAPA project
178: described at http://www.lon-capa.org.
179:
180: =head1 SUBROUTINES
181:
182: =over
183:
184: =item start_externalresponse()
185:
186: =item end_externalresponse()
187:
188: =item format_prior_response()
189:
190: =back
191:
1.16 www 192: =cut
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