--- loncom/homework/lonhomework.pm 2000/07/25 17:45:40 1.1 +++ loncom/homework/lonhomework.pm 2000/11/30 16:20:49 1.17 @@ -1,26 +1,131 @@ # The LON-CAPA Homework handler # Guy Albertelli +# 11/30 Gerd Kortemeyer package Apache::lonhomework; use strict; use Apache::style; use Apache::lonxml; +use Apache::lonnet; +use Apache::inputtags; +use Apache::structuretags; +use Apache::response; + + +sub subhandler { + my ($target,$problem)=@_; + my %mystyle; + my $result = ''; + &Apache::inputtags::initialize_inputtags; + %Apache::lonhomework::results=(); + %Apache::lonhomework::history=&Apache::lonnet::restore; + #ignore error conditions + my ($temp)=keys %Apache::lonhomework::history ; + if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); } + + my $resultkey; + foreach $resultkey (sort keys %Apache::lonhomework::history) { + &Apache::lonxml::debug("$resultkey ---- $Apache::lonhomework::history{$resultkey}"); + } + &Apache::lonxml::debug("\n
restored values^
\n"); + my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm'); + if ($default == -1) { + &Apache::lonxml::error("Unable to find default_homework.lcpm"); + $default=''; + } + + return Apache::lonxml::xmlparse($target, $problem, + $default.&setup_vars($target),%mystyle); +} + +sub get_target { + if ( $ENV{'request.state'} eq "published") { + return 'web'; + } elsif ($ENV{'request.state'} eq "construct") { + if ( defined $ENV{'form.preview'}) { + return 'web'; + } else { + return 'edit'; + } + } +} + +sub setup_vars { + my ($target) = @_; + return ';' +# return ';$external::target='.$target.';'; +} + +sub send_header { + my ($request)= @_; + $request->print(&Apache::lontexconvert::header()); + $ENV{'request.uri'}=$request->uri; +# $request->print('
'); +} + +sub send_footer { + my ($request)= @_; +# $request->print('
'); + $request->print(&Apache::lontexconvert::footer()); +} + +sub getfilenothere { + my ($filename) = @_; + my $a=""; + if (! -e $filename ) { + &Apache::lonnet::subscribe($filename); + &Apache::lonnet::repcopy($filename); + } + { + my $fh=Apache::File->new($filename); + + while (<$fh>) { + $a .=$_; + } + } + return $a +} sub handler { my $request=shift; - my @parsecontents; - { - my $fh=Apache::File->new($request->filename); - @parsecontents=<$fh>; + $Apache::lonxml::debug=1; + if ($ENV{'browser.mathml'}) { + $request->content_type('text/xml'); + } else { + $request->content_type('text/html'); } - - my $parsestring=join('',@parsecontents); - - $request->content_type('text/html'); $request->send_http_header; - $request->print(' -
'); + return 'OK' if $request->header_only; + + &Apache::lonhomework::send_header($request); + my $file=&Apache::lonnet::filelocation("",$request->uri); + my $problem=&Apache::lonnet::getfile($file); + if ($problem == -1) { + &Apache::lonxml::error(" Unable to find $file"); + $problem=''; + } + + my $result=&subhandler(&get_target(),$problem); + + #$request->print("Result follows:"); + $request->print($result); + #$request->print(":Result ends"); + + my $temp; + my $resultkey; + foreach $resultkey (sort keys %Apache::lonhomework::results) { + &Apache::lonxml::debug("$resultkey ---- $Apache::lonhomework::results{$resultkey}"); + } + &Apache::lonxml::debug("\n
storing values^
\n"); + + &Apache::lonhomework::send_footer($request); + ($temp) = keys %Apache::lonhomework::results; + if ( $temp ne '' ) { + &Apache::lonxml::debug("Store return message:".&Apache::lonnet::cstore(%Apache::lonhomework::results)); + } + return 'OK'; + } 1;