version 1.5, 2000/08/08 19:14:53
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version 1.140, 2003/09/11 20:03:28
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# The LearningOnline Network with CAPA |
# The LON-CAPA Homework handler |
# The LON-CAPA Homework handler |
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# |
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# $Id$ |
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# |
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# Copyright Michigan State University Board of Trustees |
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# |
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# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
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# |
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# LON-CAPA is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# LON-CAPA is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with LON-CAPA; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# /home/httpd/html/adm/gpl.txt |
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# |
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# http://www.lon-capa.org/ |
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# |
# Guy Albertelli |
# Guy Albertelli |
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# 11/30 Gerd Kortemeyer |
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# 6/1,8/17,8/18 Gerd Kortemeyer |
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# 7/18 Jeremy Bowers |
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package Apache::lonhomework; |
package Apache::lonhomework; |
use strict; |
use strict; |
use Apache::style; |
use Apache::style(); |
use Apache::lonxml; |
use Apache::lonxml(); |
use Apache::lonnet; |
use Apache::lonnet(); |
use Apache::inputtags; |
use Apache::lonplot(); |
use Apache::structuretags; |
use Apache::inputtags(); |
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use Apache::structuretags(); |
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use Apache::randomlabel(); |
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use Apache::response(); |
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use Apache::hint(); |
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use Apache::outputtags(); |
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use Apache::caparesponse(); |
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use Apache::radiobuttonresponse(); |
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use Apache::optionresponse(); |
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use Apache::imageresponse(); |
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use Apache::essayresponse(); |
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use Apache::externalresponse(); |
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use Apache::rankresponse(); |
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use Apache::matchresponse(); |
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use Apache::chemresponse(); |
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use Apache::Constants qw(:common); |
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use HTML::Entities(); |
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use Apache::loncommon(); |
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#use Time::HiRes qw( gettimeofday tv_interval ); |
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sub handler { |
BEGIN { |
my $request=shift; |
&Apache::lonxml::register_insert(); |
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my $target=&get_target(); |
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$request->content_type('text/html'); |
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$request->send_http_header; |
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&Apache::lonhomework::send_header($request); |
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my $file = "/home/httpd/html".$request->uri; |
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my %mystyle; |
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my $result = ''; |
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&Apache::inputtags::initialize_inputtags; |
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if ($target eq "web") { |
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$result = Apache::lonxml::xmlparse($target,'<scriptlib>/res/103/albertel/default_homework</scriptlib>'.&setup_vars($target).&getfile($file),%mystyle); |
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} else { |
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$result = Apache::lonxml::xmlparse($target,&getfile($file),%mystyle); |
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} |
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#$request->print("Result follows:"); |
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$request->print($result); |
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#$request->print(":Result ends"); |
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&Apache::lonhomework::send_footer($request); |
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} |
} |
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sub get_target { |
sub get_target { |
return "edit"; |
if (($ENV{'request.state'} eq "published") || |
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($ENV{'request.state'} eq "uploaded")) { |
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if ( defined($ENV{'form.grade_target'} ) |
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&& ($ENV{'form.grade_target'} eq 'tex')) { |
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return ($ENV{'form.grade_target'}); |
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} elsif ( defined($ENV{'form.grade_target'} ) |
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&& ($Apache::lonhomework::viewgrades eq 'F' )) { |
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return ($ENV{'form.grade_target'}); |
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} elsif (defined($ENV{'form.grade_target'} ) |
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&& ($ENV{'form.grade_target'} eq 'answer')) { |
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return ($ENV{'form.grade_target'}); |
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} |
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if ( defined($ENV{'form.submitted'}) && |
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( !defined($ENV{'form.resetdata'})) && |
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( !defined($ENV{'form.newrandomization'}))) { |
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return ('grade', 'web'); |
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} else { |
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return ('web'); |
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} |
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} elsif ($ENV{'request.state'} eq "construct") { |
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if ( defined($ENV{'form.grade_target'}) ) { |
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return ($ENV{'form.grade_target'}); |
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} |
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if ( defined($ENV{'form.preview'})) { |
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if ( defined($ENV{'form.submitted'})) { |
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return ('grade', 'web'); |
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} else { |
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return ('web'); |
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} |
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} else { |
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if ( $ENV{'form.problemmode'} eq 'View' || |
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$ENV{'form.problemmode'} eq 'Discard Edits and View') { |
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if ( defined($ENV{'form.submitted'}) && |
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(!defined($ENV{'form.resetdata'})) && |
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(!defined($ENV{'form.newrandomization'}))) { |
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return ('grade', 'web','answer'); |
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} else { |
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return ('web','answer'); |
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} |
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} elsif ( $ENV{'form.problemmode'} eq 'Edit' ) { |
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if ( $ENV{'form.submitted'} eq 'edit' ) { |
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if ( $ENV{'form.submit'} eq 'Submit Changes and View' ) { |
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return ('modified','web','answer'); |
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} else { |
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return ('modified','edit'); |
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} |
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} else { |
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return ('edit'); |
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} |
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} else { |
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return ('web'); |
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} |
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} |
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} |
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return (); |
} |
} |
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sub setup_vars { |
sub setup_vars { |
my ($target) = @_; |
my ($target) = @_; |
$Apache::lonhomework::target=$target; |
return ';' |
return '<script>$external::target='.$target.';</script>'; |
# return ';$external::target='.$target.';'; |
} |
} |
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sub send_header { |
sub send_header { |
my ($request)= @_; |
my ($request)= @_; |
$request->print('<html>'); |
$request->print(&Apache::lontexconvert::header()); |
$request->print('<form method="POST" action="'.$request->uri.'">'); |
# $request->print('<form name='.$ENV{'form.request.prefix'}.'lonhomework method="POST" action="'.$request->uri.'">'); |
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} |
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sub createmenu { |
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my ($which,$request)=@_; |
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if ($which eq 'grade') { |
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$request->print('<script language="JavaScript"> |
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hwkmenu=window.open("/res/adm/pages/homeworkmenu.html","homeworkremote", |
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"height=350,width=150,menubar=no"); |
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</script>'); |
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} |
} |
} |
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sub send_footer { |
sub send_footer { |
my ($request)= @_; |
my ($request)= @_; |
$request->print('</form>'); |
# $request->print('</form>'); |
$request->print('</html>'); |
$request->print(&Apache::lontexconvert::footer()); |
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} |
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$Apache::lonxml::browse=''; |
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# JB, 9/24/2002: Any changes in this function may require a change |
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# in lonnavmaps::resource::getDateStatus. |
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sub check_access { |
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my ($id) = @_; |
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my $date =''; |
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my $status; |
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my $datemsg = ''; |
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my $lastdate = ''; |
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my $temp; |
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my $type; |
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my $passed; |
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if ($ENV{'request.state'} eq "construct") { |
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&Apache::lonxml::debug("in construction ignoring dates"); |
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$status='CAN_ANSWER'; |
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$datemsg='is in under construction'; |
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return ($status,$datemsg); |
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} |
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&Apache::lonxml::debug("checking for part :$id:"); |
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&Apache::lonxml::debug("time:".time); |
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foreach $temp ("opendate","duedate","answerdate") { |
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$lastdate = $date; |
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$date = &Apache::lonnet::EXT("resource.$id.$temp"); |
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my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type"); |
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if ($thistype =~ /^(con_lost|no_such_host)/ || |
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$date =~ /^(con_lost|no_such_host)/) { |
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$status='UNAVAILABLE'; |
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$date="may open later."; |
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return($status,$date); |
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} |
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if ($thistype eq 'date_interval') { |
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if ($temp eq 'opendate') { |
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$date=&Apache::lonnet::EXT("resource.$id.duedate")-$date; |
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} |
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if ($temp eq 'answerdate') { |
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$date=&Apache::lonnet::EXT("resource.$id.duedate")+$date; |
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} |
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} |
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&Apache::lonxml::debug("found :$date: for :$temp:"); |
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if ($date eq '') { |
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$date = "an unknown date"; $passed = 0; |
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} elsif ($date eq 'con_lost') { |
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$date = "an indeterminate date"; $passed = 0; |
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} else { |
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if (time < $date) { $passed = 0; } else { $passed = 1; } |
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$date = localtime $date; |
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} |
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if (!$passed) { $type=$temp; last; } |
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} |
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&Apache::lonxml::debug("have :$type:$passed:"); |
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if ($passed) { |
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$status='SHOW_ANSWER'; |
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$datemsg=$date; |
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} elsif ($type eq 'opendate') { |
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$status='CLOSED'; |
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$datemsg = "will open on $date"; |
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} elsif ($type eq 'duedate') { |
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$status='CAN_ANSWER'; |
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$datemsg = "is due at $date"; |
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} elsif ($type eq 'answerdate') { |
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$status='CLOSED'; |
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$datemsg = "was due on $lastdate, and answers will be available on $date"; |
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} |
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if ($status eq 'CAN_ANSWER') { |
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#check #tries, and if correct. |
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my $tries = $Apache::lonhomework::history{"resource.$id.tries"}; |
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my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries"); |
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if ( $tries eq '' ) { $tries = '0'; } |
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if ( $maxtries eq '' ) { $maxtries = '2'; } |
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if ($tries >= $maxtries) { $status = 'CANNOT_ANSWER'; } |
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# if (correct and show prob status) or excused then CANNOT_ANSWER |
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if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/ |
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&& |
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lc($Apache::lonhomework::problemstatus) ne 'no') |
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|| |
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$Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) { |
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$status = 'CANNOT_ANSWER'; |
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} |
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} |
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#if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') && |
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# (!$Apache::lonhomework::history{"resource.0.outtoken"})) { |
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# return ('UNCHECKEDOUT','needs to be checked out'); |
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#} |
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&Apache::lonxml::debug("sending back :$status:$datemsg:"); |
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if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) { |
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&Apache::lonxml::debug("should be allowed to browse a resource when closed"); |
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$status='CAN_ANSWER'; |
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$datemsg='is closed but you are allowed to view it'; |
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} |
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return ($status,$datemsg); |
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} |
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sub showhash { |
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my (%hash) = @_; |
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&showhashsubset(\%hash,'.'); |
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return ''; |
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} |
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sub showarray { |
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my ($array)=@_; |
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my $string="("; |
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foreach my $elm (@{ $array }) { |
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if (ref($elm)) { |
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if ($elm =~ /ARRAY/ ) { |
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$string.=&showarray($elm); |
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} |
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} else { |
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$string.="$elm," |
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} |
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} |
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chop($string); |
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$string.=")"; |
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return $string; |
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} |
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sub showhashsubset { |
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my ($hash,$keyre) = @_; |
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my $resultkey; |
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foreach $resultkey (sort keys %$hash) { |
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if ($resultkey =~ /$keyre/) { |
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if (ref($$hash{$resultkey})) { |
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if ($$hash{$resultkey} =~ /ARRAY/ ) { |
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&Apache::lonxml::debug("$resultkey ---- ". |
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&showarray($$hash{$resultkey})); |
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} elsif ($$hash{$resultkey} =~ /HASH/ ) { |
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&Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}"); |
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&showhashsubset($$hash{$resultkey},'.'); |
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} else { |
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&Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}"); |
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} |
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} else { |
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&Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}"); |
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} |
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} |
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} |
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&Apache::lonxml::debug("\n<br />restored values^</br>\n"); |
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return ''; |
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} |
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sub setuppermissions { |
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$Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$ENV{'request.filename'}); |
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my $viewgrades = &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}); |
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if (! $viewgrades && |
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exists($ENV{'request.course.sec'}) && |
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$ENV{'request.course.sec'} !~ /^\s*$/) { |
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$viewgrades = &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}. |
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'/'.$ENV{'request.course.sec'}); |
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} |
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$Apache::lonhomework::viewgrades = $viewgrades; |
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return '' |
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} |
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sub setupheader { |
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my $request=$_[0]; |
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if ($ENV{'browser.mathml'}) { |
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$request->content_type('text/xml'); |
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} else { |
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$request->content_type('text/html'); |
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} |
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$request->content_encoding('UTF-8'); |
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if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) { |
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&Apache::loncommon::no_cache($request); |
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} |
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$request->send_http_header; |
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return OK if $request->header_only; |
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return '' |
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} |
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sub handle_save_or_undo { |
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my ($request,$problem,$result) = @_; |
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my $file = &Apache::lonnet::filelocation("",$request->uri); |
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my $filebak =$file.".bak"; |
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my $filetmp =$file.".tmp"; |
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my $error=0; |
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if ($ENV{'form.Undo'} eq 'undo') { |
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my $error=0; |
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if (!copy($file,$filetmp)) { $error=1; } |
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if ((!$error) && (!copy($filebak,$file))) { $error=1; } |
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if ((!$error) && (!move($filetmp,$filebak))) { $error=1; } |
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if (!$error) { |
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$request->print("<p><b>Undid changes, Switched $filebak and $file</b></p>"); |
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} else { |
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$request->print("<p><font color=\"red\" size=\"+1\"><b>Unable to undo, unable to switch $filebak and $file</b></font></p>"); |
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$error=1; |
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} |
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} else { |
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my $fs=Apache::File->new(">$filebak"); |
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if (defined($fs)) { |
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print $fs $$problem; |
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$request->print("<b>Making Backup to $filebak</b><br />"); |
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} else { |
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$request->print("<font color=\"red\" size=\"+1\"><b>Unable to make backup $filebak</b></font>"); |
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$error=2; |
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} |
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my $fh=Apache::File->new(">$file"); |
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if (defined($fh)) { |
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print $fh $$result; |
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$request->print("<b>Saving Modifications to $file</b><br />"); |
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} else { |
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$request->print("<font color=\"red\" size=\"+1\"><b>Unable to write to $file</b></font>"); |
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$error|=4; |
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} |
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} |
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return $error; |
} |
} |
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sub getfile { |
sub analyze_header { |
my ($filename) = @_; |
my ($request) = @_; |
my $a=""; |
my $result.='<html> |
&Apache::lonnet::repcopy($filename); |
<head><title>Analyzing a problem</title></head> |
{ |
<body bgcolor="#FFFFFF"> |
my $fh=Apache::File->new($filename); |
<form name="lonhomework" method="POST" action="'. |
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$ENV{'request.uri'}.'"> |
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<input type="submit" name="problemmode" value="EditXML" /> |
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<input type="submit" name="problemmode" value="Edit" /> |
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<hr /> |
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<input type="submit" name="submit" value="View" /> |
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<hr /> |
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List of possible answers: |
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</form>'; |
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$request->print($result); |
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$request->rflush(); |
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} |
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while (<$fh>) { |
sub analyze_footer { |
$a .=$_; |
my ($request) = @_; |
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my $result='</body></html>'; |
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$request->print($result); |
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$request->rflush(); |
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} |
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sub analyze { |
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my ($request,$file) = @_; |
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&Apache::lonxml::debug("Analyze"); |
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my $result; |
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my %overall; |
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my %allparts; |
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my $rndseed=$ENV{'form.rndseed'}; |
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&analyze_header($request); |
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my %prog_state= |
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&Apache::lonhtmlcommon::Create_PrgWin($request,'Analyze Progress', |
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'Getting Problem Variants', |
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$ENV{'form.numtoanalyze'}); |
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for(my $i=1;$i<$ENV{'form.numtoanalyze'}+1;$i++) { |
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&Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state, |
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'last problem'); |
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my $subresult=&Apache::lonnet::ssi($request->uri, |
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('grade_target' => 'analyze'), |
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('rndseed' => $i+$rndseed)); |
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(my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2); |
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my %analyze=&Apache::lonnet::str2hash($subresult); |
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my @parts; |
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if (defined(@{ $analyze{'parts'} })) { |
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@parts=@{ $analyze{'parts'} }; |
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} |
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foreach my $part (@parts) { |
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if (!exists($allparts{$part})) {$allparts{$part}=1;}; |
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if ($analyze{$part.'.type'} eq 'numericalresponse' || |
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$analyze{$part.'.type'} eq 'stringresponse' || |
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$analyze{$part.'.type'} eq 'formularesponse' ) { |
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push( @{ $overall{$part.'.answer'} }, |
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[@{ $analyze{$part.'.answer'} }]); |
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} |
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} |
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} |
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&Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state, |
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'Analyzing Results'); |
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foreach my $part (sort(keys(%allparts))) { |
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if (defined(@{ $overall{$part.'.answer'} })) { |
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my $num_cols=scalar(@{ $overall{$part.'.answer'}->[0] }); |
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$request->print('<table><tr><td colspan="'.($num_cols+1).'">Part '.$part.'</td></tr>'); |
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my %frequency; |
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foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'} })) { |
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$frequency{join("\0",@{ $answer })}++; |
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} |
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$request->print('<tr><td colspan="'.($num_cols).'">Answer</td><td>Frequency</td></tr>'); |
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foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) { |
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$request->print('<tr><td align="right">'. |
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join('</td><td align="right">',split("\0",$answer)). |
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'</td><td>('.$frequency{$answer}. |
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')</td></tr>'); |
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} |
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$request->print('</table>'); |
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} else { |
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$request->print('<p>Part '.$part. |
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' is not analyzable at this time</p>'); |
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} |
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} |
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if (scalar(keys(%allparts)) == 0 ) { |
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$request->print('<p>Found no analyzable parts in this problem, |
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currently only Numerical, Formula and String response |
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styles are supported.</p>'); |
} |
} |
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&Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state); |
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&analyze_footer($request); |
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&Apache::lonhomework::showhash(%overall); |
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return $result; |
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} |
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sub editxmlmode { |
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my ($request,$file) = @_; |
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my $result; |
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my $problem=&Apache::lonnet::getfile($file); |
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if ($problem eq -1) { |
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&Apache::lonxml::error("<b> Unable to find <i>$file</i></b>"); |
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$problem=''; |
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} |
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if (defined($ENV{'form.editxmltext'}) || defined($ENV{'form.Undo'})) { |
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my $error=&handle_save_or_undo($request,\$problem, |
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\$ENV{'form.editxmltext'}); |
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if (!$error) { $problem=&Apache::lonnet::getfile($file); } |
} |
} |
return $a |
&Apache::lonhomework::showhashsubset(\%ENV,'^form'); |
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if ( $ENV{'form.submit'} eq 'Submit Changes and View' ) { |
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&Apache::lonhomework::showhashsubset(\%ENV,'^form'); |
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$ENV{'form.problemmode'}='View'; |
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&renderpage($request,$file); |
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} else { |
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my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem); |
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my $xml_help = Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index", |
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"Problem Editing Help"); |
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if ($cols > 80) { $cols = 80; } |
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if ($cols < 70) { $cols = 70; } |
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if ($rows < 20) { $rows = 20; } |
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$result.='<html><body bgcolor="#FFFFFF"> |
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<form name="lonhomework" method="POST" action="'. |
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$ENV{'request.uri'}.'"> |
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<input type="hidden" name="problemmode" value="EditXML" /> |
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<input type="submit" name="problemmode" value="Discard Edits and View" /> |
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<input type="submit" name="problemmode" value="Edit" /> |
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<hr /> |
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<input type="submit" name="submit" value="Submit Changes" /> |
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<input type="submit" name="submit" value="Submit Changes and View" /> |
|
<input type="submit" name="Undo" value="undo" /> |
|
<hr /> |
|
' . $xml_help . ' |
|
<textarea rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'. |
|
&HTML::Entities::encode($problem).'</textarea> |
|
</form></body></html>'; |
|
$request->print($result); |
|
} |
|
return ''; |
|
} |
|
|
|
sub renderpage { |
|
my ($request,$file) = @_; |
|
|
|
my (@targets) = &get_target(); |
|
&Apache::lonxml::debug("Running targets ".join(':',@targets)); |
|
foreach my $target (@targets) { |
|
#my $t0 = [&gettimeofday()]; |
|
my $problem=&Apache::lonnet::getfile($file); |
|
if ($problem eq -1) { |
|
&Apache::lonxml::error("<b> Unable to find <i>$file</i></b>"); |
|
$problem=''; |
|
} |
|
|
|
my %mystyle; |
|
my $result = ''; |
|
if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); } |
|
if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); } |
|
if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%ENV,'^form');} |
|
|
|
&Apache::lonxml::debug("Should be parsing now"); |
|
$result = &Apache::lonxml::xmlparse($request, $target, $problem, |
|
&setup_vars($target),%mystyle); |
|
undef($Apache::lonhomework::parsing_a_problem); |
|
#$request->print("Result follows:"); |
|
if ($target eq 'modified') { |
|
&handle_save_or_undo($request,\$problem,\$result); |
|
} else { |
|
if ($target eq 'analyze') { |
|
$result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze); |
|
undef(%Apache::lonhomework::analyze); |
|
} |
|
#my $td=&tv_interval($t0); |
|
#if ( $Apache::lonxml::debug) { |
|
#$result =~ s:</body>::; |
|
#$result.="<br />Spent $td seconds processing target $target\n</body>"; |
|
#} |
|
$request->print($result); |
|
$request->rflush(); |
|
} |
|
#$request->print(":Result ends"); |
|
#my $td=&tv_interval($t0); |
|
} |
|
} |
|
|
|
# with no arg it returns a HTML <option> list of the template titles |
|
# with one arg it returns the filename associated with the arg passed |
|
sub get_template_list { |
|
my ($namewanted,$extension) = @_; |
|
my $result; |
|
my @allnames; |
|
&Apache::lonxml::debug("Looking for :$extension:"); |
|
foreach my $file (</home/httpd/html/res/adm/includes/templates/*.$extension>) { |
|
my $name=&Apache::lonnet::metadata($file,'title'); |
|
if ($namewanted && ($name eq $namewanted)) { |
|
$result=$file; |
|
last; |
|
} else { |
|
if ($name) { push (@allnames, $name); } |
|
} |
|
} |
|
if (@allnames && !$result) { |
|
$result="<option>Select a $extension template</option>\n<option>". |
|
join('</option><option>',sort(@allnames)).'</option>'; |
|
} |
|
return $result; |
|
} |
|
|
|
sub newproblem { |
|
my ($request) = @_; |
|
my $extension=$request->uri; |
|
$extension=~s:^.*\.([\w]+)$:$1:; |
|
&Apache::lonxml::debug("Looking for :$extension:"); |
|
my $templatelist=&get_template_list('',$extension); |
|
if ($ENV{'form.template'} && |
|
$ENV{'form.template'} ne "Select a $extension template") { |
|
use File::Copy; |
|
my $file = &get_template_list($ENV{'form.template'},$extension); |
|
my $dest = &Apache::lonnet::filelocation("",$request->uri); |
|
copy($file,$dest); |
|
&renderpage($request,$dest); |
|
} elsif($ENV{'form.newfile'} && !$templatelist) { |
|
# I don't like hard-coded filenames but for now, this will work. |
|
use File::Copy; |
|
my $templatefilename = |
|
$request->dir_config('lonIncludes').'/templates/blank.problem'; |
|
&Apache::lonxml::debug("$templatefilename"); |
|
my $dest = &Apache::lonnet::filelocation("",$request->uri); |
|
copy($templatefilename,$dest); |
|
&renderpage($request,$dest); |
|
} else { |
|
my $url=$request->uri; |
|
my $dest = &Apache::lonnet::filelocation("",$request->uri); |
|
my $errormsg; |
|
if ($ENV{'form.newfile'}) { |
|
$errormsg='<p><font color="red">You did not select a template.</font></p>'."\n"; |
|
} |
|
my $instructions; |
|
if ($templatelist) { $instructions=", select a template from the pull-down menu below.<br />Then";} |
|
$request->print(<<ENDNEWPROBLEM); |
|
<body bgcolor="#FFFFFF"> |
|
<h1>Creating a new $extension resource</h1> |
|
$errormsg |
|
The requested file <tt>$url</tt> currently does not exist. |
|
<p> |
|
<b>To create a new $extension$instructions click on the "Create $extension" button.</b> |
|
</p> |
|
<p><form action="$url" method="POST"> |
|
ENDNEWPROBLEM |
|
if (defined($templatelist)) { |
|
$request->print("<select name=\"template\">$templatelist</select>"); |
|
} |
|
$request->print("<br /><input type=\"submit\" name=\"newfile\" value=\"Create $extension\" />"); |
|
$request->print("</form></p></body>"); |
|
} |
|
return ''; |
|
} |
|
|
|
sub view_or_edit_menu { |
|
my ($request) = @_; |
|
my $url=$request->uri; |
|
$request->print(<<EDITMENU); |
|
<body bgcolor="#FFFFFF"> |
|
<form action="$url" method="POST"> |
|
Would you like to <input type="submit" name="problemmode" value="View"> or |
|
<input type="submit" name="problemmode" value="Edit"> the problem. |
|
</form> |
|
</body> |
|
EDITMENU |
|
} |
|
|
|
sub handler { |
|
#my $t0 = [&gettimeofday()]; |
|
my $request=$_[0]; |
|
|
|
$Apache::lonxml::debug=$ENV{'user.debug'}; |
|
|
|
if (&setupheader($request)) { return OK; } |
|
$ENV{'request.uri'}=$request->uri; |
|
|
|
#setup permissions |
|
$Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$ENV{'request.filename'}); |
|
$Apache::lonhomework::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}); |
|
&Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:"); |
|
# some times multiple problemmodes are submitted, need to select |
|
# the last one |
|
&Apache::lonxml::debug("Problem Mode ".$ENV{'form.problemmode'}); |
|
if ( defined($ENV{'form.problemmode'}) && |
|
ref($ENV{'form.problemmode'}) ) { |
|
&Apache::lonxml::debug("Problem Mode ".join(",",@$ENV{'form.problemmode'})); |
|
my $mode=$ENV{'form.problemmode'}->[-1]; |
|
undef $ENV{'form.problemmode'}; |
|
$ENV{'form.problemmode'}=$mode; |
|
} |
|
&Apache::lonxml::debug("Problem Mode ".$ENV{'form.problemmode'}); |
|
my $file=&Apache::lonnet::filelocation("",$request->uri); |
|
|
|
#check if we know where we are |
|
if ($ENV{'request.course.fn'} && !&Apache::lonnet::symbread()) { |
|
# if we are browsing we might not be able to know where we are |
|
if ($Apache::lonhomework::browse ne 'F') { |
|
#should know where we are, so ask |
|
if ( Apache::exists_config_define("MODPERL2") ) { |
|
&Apache::lonnet::cleanenv(); |
|
} |
|
$request->internal_redirect('/adm/ambiguous'); return; |
|
} |
|
} |
|
|
|
my ($symb) = &Apache::lonxml::whichuser(); |
|
&Apache::lonxml::debug('symb is '.$symb); |
|
if ($ENV{'request.state'} eq "construct" || $symb eq '') { |
|
if ($ENV{'form.resetdata'} eq 'Reset Submissions' || |
|
$ENV{'form.resetdata'} eq 'New Problem Variation' || |
|
$ENV{'form.newrandomization'} eq 'New Randomization') { |
|
my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); |
|
&Apache::lonnet::tmpreset($symb,'',$domain,$name); |
|
&Apache::lonxml::debug("Attempt reset"); |
|
} |
|
} |
|
if ($ENV{'request.state'} eq "construct") { |
|
if ( -e $file ) { |
|
&Apache::loncommon::get_unprocessed_cgi |
|
($ENV{'QUERY_STRING'},['problemmode']); |
|
if (!(defined $ENV{'form.problemmode'})) { |
|
#first visit to problem in construction space |
|
#&view_or_edit_menu($request); |
|
$ENV{'form.problemmode'}='View'; |
|
&renderpage($request,$file); |
|
} elsif ($ENV{'form.problemmode'} eq 'EditXML') { |
|
&editxmlmode($request,$file); |
|
} elsif ($ENV{'form.problemmode'} eq 'Calculate answers') { |
|
&analyze($request,$file); |
|
} else { |
|
&renderpage($request,$file); |
|
} |
|
} else { |
|
# requested file doesn't exist in contruction space |
|
&newproblem($request); |
|
} |
|
} else { |
|
# just render the page normally outside of construction space |
|
&Apache::lonxml::debug("not construct"); |
|
&renderpage($request,$file); |
|
} |
|
#my $td=&tv_interval($t0); |
|
#&Apache::lonxml::debug("Spent $td seconds processing"); |
|
# &Apache::lonhomework::send_footer($request); |
|
# always turn off debug messages |
|
$Apache::lonxml::debug=0; |
|
return OK; |
|
|
} |
} |
|
|
1; |
1; |