# The LearningOnline Network with CAPA
# rank style response
#
# $Id: rankresponse.pm,v 1.57 2008/08/08 16:37:13 bisitz 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/
#
package Apache::rankresponse;
use strict;
use HTML::Entities();
use Apache::optionresponse();
use Apache::lonlocal;
BEGIN {
&Apache::lonxml::register('Apache::rankresponse',('rankresponse'));
}
sub start_rankresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
#when in a rank response use these
&Apache::lonxml::register('Apache::rankresponse',
('foilgroup','foil','conceptgroup'));
push (@Apache::lonxml::namespace,'rankresponse');
my $id = &Apache::response::start_response($parstack,$safeeval);
%Apache::hint::rank=();
undef(%Apache::response::foilnames);
if ($target eq 'meta') {
$result=&Apache::response::meta_package_write('rankresponse');
} elsif ($target eq 'edit' ) {
$result.=&Apache::edit::start_table($token).
'
'.&Apache::lonxml::description($token)." | Delete:".
&Apache::edit::deletelist($target,$token)
." |  ".&Apache::edit::end_row()
.&Apache::edit::start_spanning_row();
$result.=
&Apache::edit::text_arg('Max Number Of Shown Foils:','max',$token,'4').
&Apache::edit::select_arg('Randomize Foil Order','randomize',
['yes','no'],$token).
&Apache::edit::end_row().&Apache::edit::start_spanning_row()."\n";
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args($token,$parstack,
$safeeval,'max',
'randomize');
if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
} elsif ($target eq 'analyze') {
my $part_id="$Apache::inputtags::part.$id";
$Apache::lonhomework::analyze{"$part_id.type"} = 'rankresponse';
push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
push (@{ $Apache::lonhomework::analyze{"$part_id.bubble_lines"} }, 1);
}
return $result;
}
sub end_rankresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
&Apache::response::end_response;
pop @Apache::lonxml::namespace;
&Apache::lonxml::deregister('Apache::rankresponse',
('foilgroup','foil','conceptgroup'));
undef(%Apache::response::foilnames);
return $result;
}
%Apache::response::foilgroup=();
sub start_foilgroup {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
%Apache::response::foilgroup=();
$Apache::rankresponse::conceptgroup=0;
&Apache::response::pushrandomnumber();
return $result;
}
sub end_foilgroup {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
$target eq 'tex' || $target eq 'analyze') {
my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
$safeeval,'-2');
my $tol = &Apache::lonxml::get_param('tol',$parstack,$safeeval,'-2');
if (!defined($tol)) { $tol=0; }
if ($target eq 'web' || $target eq 'tex') {
$result=&displayfoils($target,$max,$randomize,$tol);
$Apache::lonxml::post_evaluate=0;
} elsif ($target eq 'answer' ) {
$result=&displayanswers($max,$randomize,$tol);
} elsif ( $target eq 'grade') {
&grade_response($max,$randomize,$tol);
} elsif ( $target eq 'analyze') {
my @shown = &whichfoils($max,$randomize);
&Apache::response::analyze_store_foilgroup(\@shown,
['text','value','location']);
my $part_id=
"$Apache::inputtags::part.$Apache::inputtags::response[-1]";
$Apache::lonhomework::analyze{"$part_id.tol"}=$tol;
}
my $part = $Apache::inputtags::part;
my $id = $Apache::inputtags::response[-1];
&Apache::lonxml::increment_counter(&getfoilcounts($max),
"$part.$id");
if ($target eq 'analyze') {
&Apache::lonhomework::set_bubble_lines();
}
} elsif ($target eq 'edit') {
$result=&Apache::edit::end_table();
}
&Apache::response::poprandomnumber();
return $result;
}
sub get_correct_order {
my ($tol,@foils) =@_;
my @correctorder;
my @value_names;
foreach my $name (@foils) {
my @pair=($Apache::response::foilgroup{$name.'.value'},$name);
push(@value_names,\@pair);
}
@value_names =
sort {
if (abs($a->[0] - $b->[0]) > $tol) {return ($a->[0] <=> $b->[0]);}
return 0;
} @value_names;
my @value_names_tmp=@value_names;
my $firstpair=shift(@value_names_tmp);
my $order=1;
my %order;
my $count=1;
my $lastvalue=$firstpair->[0];
$order{$firstpair->[1]}=$order;
foreach my $pair (@value_names_tmp) {
$count++;
if (abs($pair->[0]-$lastvalue) > $tol ) {
$order=$count;
}
$order{$pair->[1]}=$order;
$lastvalue=$pair->[0];
}
foreach my $name (@foils) {
push(@correctorder,$order{$name});
}
&Apache::lonhomework::showhash('b' => \@value_names);
&Apache::lonhomework::showhash('b' => \@correctorder);
return @correctorder;
}
sub displayanswers {
my ($max,$randomize,$tol,@opt)=@_;
if (!defined(@{ $Apache::response::foilgroup{'names'} })) { return; }
my @names = @{ $Apache::response::foilgroup{'names'} };
my @whichfoils = &whichfoils($max,$randomize);
my @correctorder=&get_correct_order($tol,@whichfoils);
my $result;
if ($Apache::lonhomework::type eq 'exam') {
my @alphabet = ('A'..'Z');
my $i=0;
foreach my $order (@correctorder) {
$result.=&Apache::response::answer_header('rankresponse',$i++);
$result.=&Apache::response::answer_part('rankresponse',
$alphabet[$order-1]);
$result.=&Apache::response::answer_part('rankresponse',$order);
$result.=&Apache::response::answer_footer('rankresponse');
}
} else {
$result=&Apache::response::answer_header('rankresponse');
foreach my $order (@correctorder) {
$result.=&Apache::response::answer_part('rankresponse',$order);
}
$result.=&Apache::response::answer_footer('rankresponse');
}
return $result;
}
sub check_response_order {
my (%responsehash)=@_;
my @order=sort( {$a <=> $b} values(%responsehash));
my $lastvalue=0;
my $expected=1;
my $malformed=0;
foreach my $current (@order) {
&Apache::lonxml::debug("$lastvalue $expected $malformed");
if (!($current == $lastvalue || $current == $expected)) {
$malformed=1;
}
$expected++;
$lastvalue=$current;
}
return $malformed;
}
sub grade_response {
my ($max,$randomize,$tol)=@_;
my (@whichfoils)=&whichfoils($max,$randomize);
if (!&Apache::response::submitted()) { return; }
my %responsehash;
my %grade;
my ($temp,$right,$wrong,$ignored)=(1,0,0,0);
my @correctorder=&get_correct_order($tol,@whichfoils);
foreach my $name (@whichfoils) {
my $response = &Apache::response::getresponse($temp,'A is 1');
my $value=shift(@correctorder);
if ( $response =~ /[^\s]/) {
$responsehash{$name}=$response;
&Apache::lonxml::debug("submitted a $response for $value \n");
if ($value eq $response) {
$grade{$name}='1'; $right++;
} else {
$grade{$name}='0'; $wrong++;
}
} else {
$ignored++;
}
$temp++;
}
my $malformed=&check_response_order(%responsehash);
my $part=$Apache::inputtags::part;
my $id = $Apache::inputtags::response['-1'];
my $responsestr=&Apache::lonnet::hash2str(%responsehash);
my $gradestr =&Apache::lonnet::hash2str(%grade);
my %previous=&Apache::response::check_for_previous($responsestr,
$part,$id);
&Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored and was $malformed malformed");
my $ad;
if ($malformed) {
$ad='MISORDERED_RANK';
} elsif ($wrong==0 && $ignored==0) {
$ad='EXACT_ANS';
} elsif ($wrong==0 && $right==0) {
#nothing submitted
} else {
if ($ignored==0) {
$ad='INCORRECT';
} else {
$ad='MISSING_ANSWER';
}
}
if ($Apache::lonhomework::type eq 'survey' &&
($ad eq 'INCORRECT' || $ad eq 'EXACT_ANS') ) {
$ad='SUBMITTED';
} else {
$Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=$gradestr;
}
$Apache::lonhomework::results{"resource.$part.$id.submission"}=
$responsestr;
$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
&Apache::response::handle_previous(\%previous,$ad);
}
sub format_prior_answer {
my ($mode,$answer,$other_data) = @_;
my %lastresponse=&Apache::lonnet::str2hash($answer);
my $foil_order =$other_data->[0];
my %grading =&Apache::lonnet::str2hash($other_data->[1]);
my $output;
foreach my $name (@{ $foil_order }) {
next if (!defined($lastresponse{$name}));
$output .= ' |