# The LearningOnline Network
# Simple Problem Parameter Setting "Editor"
#
# $Id: lonsimpleproblemedit.pm,v 1.10 2003/12/11 21:23:58 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/
#
package Apache::lonsimpleproblemedit;
use strict;
use Apache::Constants qw(:common :http);
use Apache::loncommon;
use Apache::lonnet;
use Apache::lonlocal;
my %qparms;
my $prefix;
my $qtype;
sub evaloptionhash {
my $options=shift;
$options=~s/^\(\'//;
$options=~s/\'\)$//;
my %returnhash=();
foreach (split(/\'\,\'/,$options)) {
$returnhash{$_}=$_;
}
return %returnhash;
}
sub rawrendering {
my ($request,$uri)=@_;
my $problem=&Apache::lonnet::getfile
(&Apache::lonnet::filelocation('',$uri));
&Apache::lonnet::devalidatecourseresdata(
$ENV{'course.'.$ENV{'request.course.id'}.'.num'},
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'});
my $uname=$ENV{'user.name'};
my $udom=$ENV{'user.domain'};
$ENV{'user.name'}=time;
$ENV{'user.domain'}=time;
my $result = &Apache::lonxml::xmlparse($request,'web', $problem);
undef($Apache::lonhomework::parsing_a_problem);
$ENV{'user.name'}=$uname;
$ENV{'user.domain'}=$udom;
$result=~s/^.*\
]*\>//si;
$result=~s/\<\/body[^\>]*\>.*$//si;
return $result;
}
sub questiontext {
my $text=$qparms{$prefix.'questiontext'};
my $qt=&mt('Question Text');
return (<
$qt
|
ENDQUESTION
}
sub hint {
my $text=$qparms{$prefix.'hinttext'};
my $ht=&mt('Hint Text');
return (<
$ht
|
ENDHINT
}
sub foil {
my $number=shift;
my %values='';
if ($qtype eq 'radio') {
%values=('true' => 'True', 'false' => 'False');
} elsif ($qtype eq 'option') {
%values=&evaloptionhash($qparms{$prefix.'options'});
}
$values{'unused'}='Not shown, not used';
my $value=$qparms{$prefix.'value'.$number};
unless (defined($value)) { $value='unused'; }
unless ($values{$value}) { $value='unused'; }
my $position=$qparms{$prefix.'position'.$number};
my %positions=('random' => 'Random position',
'top' => 'Show always at top position',
'bottom' => 'Show always at bottom position');
unless (defined($position)) { $position='random'; }
unless ($positions{$position}) {
$position='random';
}
my $selectvalue=&Apache::loncommon::select_form
($value,'value'.$number,%values);
my $selectposition=&Apache::loncommon::select_form
($position,'position'.$number,%positions);
my $text=$qparms{$prefix.'text'.$number};
my %lt=&Apache::lonlocal::texthash('foil' => 'Foil',
'value' => 'Value',
'pos' => 'Position',
'text' => 'Text');
return (<
$lt{'foil'} |
$lt{'value'}: $selectvalue | $lt{'pos'}: $selectposition |
$lt{'text'}:
|
ENDFOIL
}
sub handler {
my $r = shift;
if ($r->header_only) {
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
return OK;
}
# -------------------------------------------------------------------- Allowed?
unless (&Apache::lonnet::allowed('mdc',$ENV{'request.course.id'})) {
return HTTP_NOT_ACCEPTABLE;
}
# ----------------------------------------------------------------- Send header
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
# ----------------------------------------------------- Figure out where we are
my $uri=$r->uri;
$uri=~s/\/smpedit$//;
my $symb=&Apache::lonnet::symbread($uri);
# ------------------------------------------------ Prefix for everything stored
$prefix=$ENV{'request.course.id'}.'.'.$symb.'.0.';
# ---------------------------------------------------------- Anything to store?
if (($symb) && (defined($ENV{'form.questiontype'}))) {
my %storecontent=();
undef %storecontent;
if ($ENV{'form.questiontype'} eq 'option') {
my %curoptions=&evaloptionhash($ENV{'form.options'});
if ($ENV{'form.delopt'}) {
delete $curoptions{$ENV{'form.delopt'}};
}
if ($ENV{'form.newopt'}) {
$ENV{'form.newopt'}=~s/\'/\\\'/g;
$curoptions{$ENV{'form.newopt'}}=$ENV{'form.newopt'};
}
$ENV{'form.options'}="('".join("','",keys %curoptions)."')";
}
$ENV{'form.hiddenparts'}='!'.$ENV{'form.questiontype'};
foreach (keys %ENV) {
if ($_=~/^form\.(\w+)$/) {
my $parm=$1;
$storecontent{$prefix.$parm}=$ENV{'form.'.$parm};
$storecontent{$prefix.$parm}=~s/^\s+//s;
$storecontent{$prefix.$parm}=~s/\s+$//s;
}
}
my $reply=&Apache::lonnet::cput
('resourcedata',\%storecontent,
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
}
# ------------------------------------------------------------------- Read Data
%qparms=&Apache::lonnet::dump('resourcedata',
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
$ENV{'course.'.$ENV{'request.course.id'}.'.num'},
$ENV{'request.course.id'}.'.'.$symb);
# ------------------------------------------------------------ Print the screen
$r->print(<
The LearningOnline Network with CAPA
ENDDOCUMENT
$r->print(&Apache::loncommon::bodytag('Simple Problem Editor'));
if ($symb) {
$r->print(''.&Apache::lonnet::gettitle($symb).'
');
$r->print(''.
&rawrendering($r,$uri).
' |
');
$r->print('');
} else {
$r->print(&mt('Could not identify problem.'));
}
$r->print('');
return OK;
}
1;
__END__