--- loncom/homework/lonhomework.pm	2000/10/11 21:02:13	1.14
+++ loncom/homework/lonhomework.pm	2000/11/30 16:20:49	1.17
@@ -1,5 +1,6 @@
 # The LON-CAPA Homework handler
 # Guy Albertelli
+# 11/30 Gerd Kortemeyer
 
 package Apache::lonhomework;
 use strict;
@@ -10,47 +11,43 @@ use Apache::inputtags;
 use Apache::structuretags;
 use Apache::response;
 
-sub handler {
-  my $request=shift;
-
-  my $target=&get_target();
-  $Apache::lonxml::debug=1;
-  if ($ENV{'browser.mathml'}) {
-    $request->content_type('text/xml');
-  } else {
-    $request->content_type('text/html');
-  }
-  $request->send_http_header;
-  return 'OK' if $request->header_only;
 
-  &Apache::lonhomework::send_header($request);
-  my $file = "/home/httpd/html".$request->uri;
+sub subhandler {
+  my ($target,$problem)=@_;
   my %mystyle;
   my $result = '';
   &Apache::inputtags::initialize_inputtags;
-
-  my $problem=&Apache::lonnet::getfile($file);
-  if ($problem == -1) {
-    &Apache::lonxml::error("<b> Unable to find <i>$file</i></b>");
-    $problem='';
+  %Apache::lonhomework::results=();
+  %Apache::lonhomework::history=&Apache::lonnet::restore;
+  #ignore error conditions
+  my ($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<br>restored values^</br>\n");
   my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
   if ($default == -1) {
-    &Apache::lonxml::error("<b>Unable to find <i>$file</i></b>");
+    &Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");
     $default='';
   }
 
-  $result = Apache::lonxml::xmlparse($target, $problem,
+  return Apache::lonxml::xmlparse($target, $problem,
 				     $default.&setup_vars($target),%mystyle);
-  #$request->print("Result follows:");
-  $request->print($result);
-  #$request->print(":Result ends");
-  &Apache::lonhomework::send_footer($request);
-  return 'OK';
 }
 
 sub get_target {
-  return "web";
+  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 {
@@ -62,16 +59,17 @@ sub setup_vars {
 sub send_header {
   my ($request)= @_;
   $request->print(&Apache::lontexconvert::header());
-  $request->print('<form name='.$ENV{'form.request.prefix'}.'lonhomework method="POST" action="'.$request->uri.'">');
+  $ENV{'request.uri'}=$request->uri;
+#  $request->print('<form name='.$ENV{'form.request.prefix'}.'lonhomework method="POST" action="'.$request->uri.'">');
 }
 
 sub send_footer {
   my ($request)= @_;
-  $request->print('</form>');
+#  $request->print('</form>');
   $request->print(&Apache::lontexconvert::footer());
 }
 
-sub getfile {
+sub getfilenothere {
   my ($filename) = @_;
   my $a="";
   if (! -e $filename ) {
@@ -88,5 +86,47 @@ sub getfile {
   return $a
 }
 
+sub handler {
+  my $request=shift;
+
+  $Apache::lonxml::debug=1;
+  if ($ENV{'browser.mathml'}) {
+    $request->content_type('text/xml');
+  } else {
+    $request->content_type('text/html');
+  }
+  $request->send_http_header;
+  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 ($problem == -1) {
+    &Apache::lonxml::error("<b> Unable to find <i>$file</i></b>");
+    $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<br>storing values^</br>\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;
 __END__