# The LearningOnline Network with CAPA
# The LON-CAPA Grading handler
#
# $Id: grades.pm,v 1.593 2010/02/08 01:09:36 raeburn 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::grades;
use strict;
use Apache::style;
use Apache::lonxml;
use Apache::lonnet;
use Apache::loncommon;
use Apache::lonhtmlcommon;
use Apache::lonnavmaps;
use Apache::lonhomework;
use Apache::lonpickcode;
use Apache::loncoursedata;
use Apache::lonmsg();
use Apache::Constants qw(:common);
use Apache::lonlocal;
use Apache::lonenc;
use String::Similarity;
use LONCAPA;
use POSIX qw(floor);
my %perm=();
# These variables are used to recover from ssi errors
my $ssi_retries = 5;
my $ssi_error;
my $ssi_error_resource;
my $ssi_error_message;
sub ssi_with_retries {
my ($resource, $retries, %form) = @_;
my ($content, $response) = &Apache::loncommon::ssi_with_retries($resource, $retries, %form);
if ($response->is_error) {
$ssi_error = 1;
$ssi_error_resource = $resource;
$ssi_error_message = $response->code . " " . $response->message;
}
return $content;
}
#
# Prodcuces an ssi retry failure error message to the user:
#
sub ssi_print_error {
my ($r) = @_;
my $helpurl = &Apache::loncommon::top_nav_help('Helpdesk');
$r->print('
'.&mt('Unable to retrieve a resource from a server:').'
'.&mt('Resource:').' '.$ssi_error_resource.'
'.&mt('Error:').' '.$ssi_error_message.'
'.
&mt('It is recommended that you try again later, as this error may mean the server was just temporarily unavailable, or is down for maintenance.').'
'.
&mt('If the error persists, please contact the [_1] for assistance.',$helpurl).
'
'; } elsif ($response eq 'match') { my %answer=&Apache::lonnet::str2hash($answer); my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"}); my @items=&Apache::lonnet::str2array($record->{$version."resource.$partid.$respid.submissionitems"}); my ($toprow,$middlerow,$bottomrow); foreach my $foil (@$order) { my $item=shift(@items); if ($grading{$foil} == 1) { $toprow.=''. '
'. ' '.&mt('Answer').' '.$toprow.''.' '.$grayFont.&mt('Option ID').' '. $grayFont.$bottomrow.'
'; } elsif ($response eq 'radiobutton') { my %answer=&Apache::lonnet::str2hash($answer); my ($toprow,$bottomrow); my $correct = &get_radiobutton_correct_foil($partid,$respid,$symb,$uname,$udom); foreach my $foil (@$order) { if (exists($answer{$foil})) { if ($foil eq $correct) { $toprow.=''. '
'. ' '.&mt('Answer').' '.$toprow.''. ' '.$grayFont.&mt('Item ID').' '. $middlerow.''.' '.$grayFont.&mt('Option ID').' '. $bottomrow.'
'; } elsif ($response eq 'essay') { if (! exists ($env{'form.'.$symb})) { my (%keyhash) = &Apache::lonnet::dump('nohist_handgrade', $env{'course.'.$env{'request.course.id'}.'.domain'}, $env{'course.'.$env{'request.course.id'}.'.num'}); my $loginuser = $env{'user.name'}.':'.$env{'user.domain'}; $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : ''; $env{'form.kwclr'} = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red'; $env{'form.kwsize'} = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0'; $env{'form.kwstyle'} = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : ''; $env{'form.'.$symb} = 1; # so that we don't have to read it from disk for multiple sub of the same prob. } $answer =~ s-\n-'. '
'. ' '.&mt('Answer').' '.$toprow.''.' '.$grayFont.&mt('Option ID').' '. $grayFont.$bottomrow.'
'.&keywords_highlight($answer).''; } elsif ( $response eq 'organic') { my $result='Smile representation: "'.$answer.'"'; my $jme=$record->{$version."resource.$partid.$respid.molecule"}; $result.=&Apache::chemresponse::jme_img($jme,$answer,400); return $result; } elsif ( $response eq 'Task') { if ( $answer eq 'SUBMITTED') { my $files = $record->{$version."resource.$respid.$partid.bridgetask.portfiles"}; my $result = &Apache::bridgetask::file_list($files,$uname,$udom); return $result; } elsif ( grep(/^\Q$version\E.*?\.instance$/, keys(%{$record})) ) { my @matches = grep(/^\Q$version\E.*?\.instance$/, keys(%{$record})); return join('
' .&mt('Overall result: [_1]', $record->{$version."resource.$respid.$partid.status"}) .'
'; $result .= '' .&mt('No match found for the above receipt number.') .'
'; } else { $string = &jscriptNform($symb).$title. ''. &mt('The above receipt number matches the following [quant,_1,student].',$matches). '
'. $header. $contents. &Apache::loncommon::end_data_table()."\n"; } return $string.&show_grading_menu_form($symb); } #--- This is called by a number of programs. #--- Called from the Grading Menu - View/Grade an individual student #--- Also called directly when one clicks on the subm button # on the problem page. sub listStudents { my ($request) = shift; my ($symb) = &get_symb($request); my $cdom = $env{"course.$env{'request.course.id'}.domain"}; my $cnum = $env{"course.$env{'request.course.id'}.num"}; my $getsec = $env{'form.section'} eq '' ? 'all' : $env{'form.section'}; my $getgroup = $env{'form.group'} eq '' ? 'all' : $env{'form.group'}; my $submitonly= $env{'form.submitonly'} eq '' ? 'all' : $env{'form.submitonly'}; my $viewgrade = $env{'form.showgrading'} eq 'yes' ? 'View/Grade/Regrade' : 'View'; $env{'form.probTitle'} = $env{'form.probTitle'} eq '' ? &Apache::lonnet::gettitle($symb) : $env{'form.probTitle'}; my $result='