--- loncom/homework/lonhomework.pm	2007/08/24 22:58:18	1.272
+++ loncom/homework/lonhomework.pm	2007/10/17 00:22:51	1.277
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Homework handler
 #
-# $Id: lonhomework.pm,v 1.272 2007/08/24 22:58:18 albertel Exp $
+# $Id: lonhomework.pm,v 1.277 2007/10/17 00:22:51 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -63,6 +63,28 @@ BEGIN {
 }
 
 
+=pod
+
+=item set_bubble_lines()
+
+Called at analysis time to set the bubble lines
+hash for the problem.. This should be called in the
+end_problemtype tag in analysis mode.
+
+We fetch the hash of part id counters from lonxml
+    and push them into analyze:{part_id.bubble_lines}.
+
+=cut
+
+sub set_bubble_lines {
+    my %bubble_counters = &Apache::lonxml::get_bubble_line_hash();
+
+    foreach my $key (keys(%bubble_counters)) {
+	$Apache::lonhomework::analyze{"$key.bubble_lines"} =
+	    $bubble_counters{"$key"};
+    }
+}
+
 #
 # Decides what targets to render for.
 # Implicit inputs:
@@ -376,8 +398,8 @@ sub check_access {
     if ($env{'request.state'} eq "construct") {
 	if ($env{'form.problemstate'}) {
 	    if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) {
-		if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct' &&
-			lc($Apache::lonhomework::problemstatus) eq 'no')) {
+		if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct' 
+			&& &hide_problem_status())) {
 		    return ('CANNOT_ANSWER',
 			    &mt('is in this state due to author settings.'));
 		}
@@ -436,7 +458,7 @@ sub check_access {
 		$date = &mt("an indeterminate date"); $passed = 0;
 	    } else {
 		if (time < $date) { $passed = 0; } else { $passed = 1; }
-		$date = localtime $date;
+		$date = &Apache::lonlocal::locallocaltime($date);
 	    }
 	    if (!$passed) { $type=$temp; last; }
 	}
@@ -467,7 +489,7 @@ sub check_access {
 	# if (correct and show prob status) or excused then CANNOT_ANSWER
 	if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
 	    &&
-	    lc($Apache::lonhomework::problemstatus) ne 'no')
+	    &show_problem_status())
 	   ||
 	   $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
 	    $status = 'CANNOT_ANSWER';
@@ -788,6 +810,14 @@ sub analyze {
 			$i++;
 		    }
 		}
+		if (!keys(%{ $analyze{$part.'.answer'} })) {
+		    my $answer_part = 
+			['<span class="LC_error">'.&mt('Error').'</span>'];
+		    $seedexample{join("\0",$part,0,@{$answer_part})}=
+			$thisseed;
+		    push( @{ $overall{$part.'.answer'}[0] },
+			  $answer_part);
+		}
 	    }
 	}
     }
@@ -831,6 +861,36 @@ sub analyze {
     return $result;
 }
 
+{
+    my $show_problem_status;
+    sub reset_show_problem_status {
+	undef($show_problem_status);
+    }
+
+    sub set_show_problem_status {
+	my ($new_status) = @_;
+	$show_problem_status = lc($new_status);
+    }
+
+    sub hide_problem_status {
+	return ($show_problem_status eq 'no'
+		|| $show_problem_status eq 'no_feedback_ever');
+    }
+
+    sub show_problem_status {
+	return ($show_problem_status eq 'yes'
+		|| $show_problem_status eq '');
+    }
+    
+    sub show_some_problem_status {
+	return ($show_problem_status eq 'no');
+    }
+
+    sub show_no_problem_status {
+	return ($show_problem_status eq 'no_feedback_ever');
+    }
+}
+
 sub editxmlmode {
     my ($request,$file) = @_;
     my $result;
@@ -951,7 +1011,7 @@ sub renderpage {
 	&Apache::lonxml::debug("Should be parsing now");
 	$result .= &Apache::lonxml::xmlparse($request, $target, $problem,
 					     &setup_vars($target),%mystyle);
-	undef($Apache::lonhomework::parsing_a_problem);
+	&finished_parsing();
 	if (!$output) { $result = ''; }
 	#$request->print("Result follows:");
 	if ($target eq 'modified') {
@@ -982,6 +1042,11 @@ sub renderpage {
     }
 }
 
+sub finished_parsing {
+    undef($Apache::lonhomework::parsing_a_problem);
+    undef($Apache::lonhomework::parsing_a_task);
+}
+
 # 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 {