--- loncom/homework/inputtags.pm	2003/02/07 22:03:21	1.84
+++ loncom/homework/inputtags.pm	2003/04/07 22:18:11	1.88
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # input  definitons
 #
-# $Id: inputtags.pm,v 1.84 2003/02/07 22:03:21 albertel Exp $
+# $Id: inputtags.pm,v 1.88 2003/04/07 22:18:11 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -336,9 +336,20 @@ sub decideoutput {
     $message = "Unknown message: $award";
     $button=1;
   }
+  if ($Apache::lonhomework::type eq 'exam') {$message='';$previousmsg='';}
   return ($button,$message,$previousmsg);
 }
 
+sub removealldata {
+    my ($id)=@_;
+    foreach my $key (keys(%Apache::lonhomework::results)) {
+	if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
+	    &Apache::lonxml::debug("Removing $key");
+	    delete($Apache::lonhomework::results{$key});
+	}
+    }
+}
+
 sub setgradedata {
   my ($award,$id,$previously_used) = @_;
   # if the student already has it correct, don't modify the status
@@ -371,7 +382,9 @@ sub setgradedata {
     } elsif ( $award eq 'DRAFT' ) {
       $Apache::lonhomework::results{"resource.$id.solved"} = '';
     } elsif ( $award eq 'NO_RESPONSE' ) {
-      return '';
+	#no real response so delete any data that got stored
+	&removealldata($id);
+	return '';
     } else {
       $Apache::lonhomework::results{"resource.$id.solved"} =
 	'incorrect_attempted';
@@ -385,17 +398,18 @@ sub setgradedata {
     } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
       #delete all data as they student didn't do anything, but save
       #the list of collaborators.
-      foreach my $key (keys(%Apache::lonhomework::results)) {
-	if (($key =~ /^resource\.$id\./) && ($key !~ /\.collaborators$/)) {
-	  &Apache::lonxml::debug("Removing $key");
-  delete($Apache::lonhomework::results{$key});
-	}
-      }
+      &removealldata($id);
       #and since they didn't do anything we were never here
       return '';
     } else {
       $Apache::lonhomework::results{"resource.$id.previous"} = '0';
     }
+  } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
+	    /^correct/ ) {
+      #delete all data as they student already has it correct
+      &removealldata($id);
+      #and since they didn't do anything we were never here
+      return '';
   }
   $Apache::lonhomework::results{"resource.$id.award"} = $award;
 }