# The LearningOnline Network with CAPA
# essay (ungraded) style responses
#
# $Id: essayresponse.pm,v 1.18 2003/01/23 19:32:36 www 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/
#
# 4/3 Guy
# July, 2002, H. K. Ng
#
package Apache::essayresponse;
use strict;
use Apache::lonxml;
BEGIN {
&Apache::lonxml::register('Apache::essayresponse',('essayresponse'));
}
sub start_essayresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
my $id = &Apache::response::start_response($parstack,$safeeval);
if ($target eq 'meta') {
$result=&Apache::response::meta_package_write('essayresponse');
} elsif ($target eq 'web') {
my $part= $Apache::inputtags::part;
my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"});
my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"});
$result='<br /><table border="1">';
if ($ncol > 0) {
$result .='<tr><td>'.
'Collaborators: <input type="text" size="70" max="80" name="HWCOL'.
$part.'_'.$id.'" value="'.$coll.'" /><br />'.
'(Enter maximum '.$ncol.' collaborators using username or username@domain, e.g. '.
'smithje or smithje@'.$ENV{'user.domain'}.'.)<br />';
$result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
$result .='</td></tr>';
}
if ($uploadedfiletypes) {
$result.=
'<tr><td>Submit a file: <input type="file" size="50" name="HWFILE'.
$part.'_'.$id.'" value="'.$uploadedfile.'" onChange="this.form.enctype='.
"'multipart/form-data'".';" /><br />Allowed filetypes: <b>'.$uploadedfiletypes.'</b><br />(Hand in a file you have prepared on your computer)</td></tr>';
}
$result.='<tr><td>'.
'<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="yes" checked>'.
' Submit text below as answer to receive credit <br />'.
'<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="no">'.
' Save text below as a draft answer (not submitting it for credit yet) '.
'</td></tr></table>';
}
return $result;
}
sub end_essayresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $part = $Apache::inputtags::part;
my $id = $Apache::inputtags::response[-1];
my $result;
if ( $target eq 'grade' ) {
my $collaborators = $ENV{'form.HWCOL'.$part.'_'.$id};
if ($collaborators =~ /[^\s]/) {
my $previous_list= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"});
$Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators
if ($collaborators ne $previous_list);
}
if ( defined $ENV{'form.submitted'}) {
my $response = $ENV{'form.HWVAL'.$id};
if ( $response =~ /[^\s]/) {
my $award;
if ($ENV{'form.HWDRAFT'.$part.'_'.$id} eq 'yes') {
$award='SUBMITTED';
} else {
$award='DRAFT';
}
$Apache::lonhomework::results{"resource.$part.$id.submission"}=$response;
$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$award;
my %previous=&Apache::response::check_for_previous($response,$part,$id);
&Apache::response::handle_previous(\%previous,$award);
}
}
} elsif ($target eq 'edit') {
$result.=&Apache::edit::end_table();
} elsif ($target eq 'tex') {
if ($Apache::lonhomework::type eq 'exam') {
$result.='\begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]\textit{Live blank on scoring form}\vskip 0 mm';
&Apache::lonxml::increment_counter();
$result.= '\item[\textbf{'.$Apache::lonxml::counter.'}.]\textit{Leave blank on scoring form}\vskip 0 mm \end{enumerate}';
&Apache::lonxml::increment_counter();
}
}
&Apache::response::end_response;
return $result;
}
sub check_collaborators {
my ($ncol,$coll) = @_;
my %classlist=&Apache::lonnet::dump('classlist',
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
my (@badcollaborators,$result);
my (@collaborators) = split(/\,?\s+/,$coll);
foreach (@collaborators) {
my $collaborator = $_;
if (/@/) {
$collaborator =~ s/@/:/;
} else {
$collaborator = $_.':'.$ENV{'user.domain'};
}
push @badcollaborators, $_ if (!grep /^$collaborator/i,keys %classlist);
}
if (scalar(@badcollaborators)) {
$result = '<table border="0"><tr bgcolor="#ffbbbb"><td> The following user'.
(scalar(@badcollaborators) > 1 ? 's are' : ' is').' invalid: '.
join(', ',@badcollaborators).'. Please correct.</td></tr></table>';
}
my $toomany = scalar(@collaborators) - $ncol;
if ($toomany > 0) {
$result .= '<table border="0"><tr bgcolor="#ffbbbb"><td>'.
'You have too many collaborators. Please remove '.$toomany.' collaborator'.
($toomany > 1 ? 's' :'').'.</td></tr></table>';
}
return $result;
}
1;
__END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>