--- loncom/homework/lonhomework.pm	2002/02/27 20:23:26	1.71
+++ loncom/homework/lonhomework.pm	2002/03/22 20:11:00	1.73
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Homework handler
 #
-# $Id: lonhomework.pm,v 1.71 2002/02/27 20:23:26 albertel Exp $
+# $Id: lonhomework.pm,v 1.73 2002/03/22 20:11:00 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -31,17 +31,18 @@
 
 package Apache::lonhomework;
 use strict;
-use Apache::style;
-use Apache::lonxml;
-use Apache::lonnet;
-use Apache::lonplot;
-use Apache::inputtags;
-use Apache::structuretags;
-use Apache::randomlabel;
-use Apache::response;
-use Apache::hint;
-use Apache::outputtags;
+use Apache::style();
+use Apache::lonxml();
+use Apache::lonnet();
+use Apache::lonplot();
+use Apache::inputtags();
+use Apache::structuretags();
+use Apache::randomlabel();
+use Apache::response();
+use Apache::hint();
+use Apache::outputtags();
 use Apache::Constants qw(:common);
+use HTML::Entities();
 #use Time::HiRes qw( gettimeofday tv_interval );
 
 BEGIN {
@@ -128,6 +129,7 @@ sub check_access {
   my $type;
   my $passed;
   &Apache::lonxml::debug("checking for part :$id:");
+  &Apache::lonxml::debug("time:".time);
   foreach $temp ("opendate","duedate","answerdate") {
     $lastdate = $date;
     $date = &Apache::lonnet::EXT("resource.$id.$temp");
@@ -189,7 +191,20 @@ sub showhash {
   my (%hash) = @_;
   my $resultkey;
   foreach $resultkey (sort keys %hash) {
-    &Apache::lonxml::debug("$resultkey ---- $hash{$resultkey}");
+    if (ref($hash{$resultkey})) {
+      if ($hash{$resultkey} =~ /ARRAY/ ) {
+	my $string="$resultkey ---- (";
+	foreach my $elm (@{ $hash{$resultkey} }) {
+	  $string.="$elm,";
+	}
+	chop($string);
+	&Apache::lonxml::debug("$string)");
+      } else {
+	&Apache::lonxml::debug("$resultkey ---- $hash{$resultkey}");
+      }
+    } else {
+      &Apache::lonxml::debug("$resultkey ---- $hash{$resultkey}");
+    }
   }
   &Apache::lonxml::debug("\n<br />restored values^</br>\n");
   return '';
@@ -281,7 +296,7 @@ sub editxmlmode {
             <input type="submit" name="Undo" value="undo" />
             <hr />
             <textarea rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.
-	      $problem.'</textarea>
+	      &HTML::Entities::encode($problem).'</textarea>
             </form></body></html>';
   $request->print($result);
   return '';
@@ -437,11 +452,12 @@ sub handler {
   &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:");
   # some times multiple problemmodes are submitted, need to select
   # the last one
-  if ( defined @{ $ENV{'form.problemmode'} } ) {
-    &Apache::lonxml::debug("Problem Modes ".join(':',@{ $ENV{'form.problemmode'} }));
-    my @modes=@{ $ENV{'form.problemmode'} };
+  if ( defined($ENV{'form.problemmode'}) &&
+       defined(@{ $ENV{'form.problemmode'} })) {
+    &Apache::lonxml::debug("3Problem Modes ".$ENV{'form.problemmode'});
+    my $mode=$ENV{'form.problemmode'}->[-1];
     undef $ENV{'form.problemmode'};
-    $ENV{'form.problemmode'}=$modes[-1];
+    $ENV{'form.problemmode'}=$mode;
   }
   &Apache::lonxml::debug("Problem Mode ".$ENV{'form.problemmode'});
   my $file=&Apache::lonnet::filelocation("",$request->uri);