--- loncom/interface/lonfeedback.pm	2004/06/03 20:06:15	1.89
+++ loncom/interface/lonfeedback.pm	2004/06/04 22:54:36	1.93
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Feedback
 #
-# $Id: lonfeedback.pm,v 1.89 2004/06/03 20:06:15 albertel Exp $
+# $Id: lonfeedback.pm,v 1.93 2004/06/04 22:54:36 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -37,18 +37,35 @@ use Apache::lontexconvert();
 use Apache::lonlocal; # must not have ()
 use Apache::lonhtmlcommon();
 
-sub list_discussion {
-    my ($mode,$status,$symb)=@_;
-
-    if (!($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER'
+sub discussion_open {
+    my ($status)=@_;
+    if (defined($status) &&
+	!($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER'
 	  || $status eq 'OPEN')) {
-	return '';
+	return 0;
     }
     my $close=&Apache::lonnet::EXT('resource.0.discussend');
     if (defined($close) && $close ne '' && $close < time) {
-	return ''
+	return 0;
     }
+    return 1;
+}
+
+sub discussion_visible {
+    my ($status)=@_;
+    if (not &discussion_open($status)) {
+	my $hidden=&Apache::lonnet::EXT('resource.0.discusshide');
+	if (lc($hidden) eq 'yes' or $hidden eq '' or !defined($hidden))  {
+	    return 0;
+	}
+    }
+    return 1;
+}
+
+sub list_discussion {
+    my ($mode,$status,$symb)=@_;
 
+    if (not &discussion_visible($status)) { return ''; }
     my @bgcols = ("#cccccc","#eeeeee");
     my $discussiononly=0;
     if ($mode eq 'board') { $discussiononly=1; }
@@ -252,7 +269,8 @@ sub list_discussion {
 			    $sender='<i>'.$screenname.'</i>';
 			}
 		    }
-		    if (&Apache::lonnet::allowed('pch',
+		    if (&discussion_open($status) &&
+			&Apache::lonnet::allowed('pch',
 						 $ENV{'request.course.id'}.
 						 ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
 			$sender.=' <a href="/adm/feedback?replydisc='.
@@ -424,7 +442,8 @@ Attachment (128 KB max size): <input typ
 ENDDISCUSS
       $discussion.=&generate_preview_button();
     } else {
-	if (&Apache::lonnet::allowed('pch',
+	if (&discussion_open($status) &&
+	    &Apache::lonnet::allowed('pch',
 				   $ENV{'request.course.id'}.
 	($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
 			    $discussion.='<table bgcolor="#BBBBBB"><tr><td><a href="/adm/feedback?replydisc='.
@@ -647,7 +666,8 @@ sub screen_header {
 	}
     }
     if ($ENV{'request.course.id'}) {
-	if (&Apache::lonnet::allowed('pch',
+	if (&discussion_open() &&
+	    &Apache::lonnet::allowed('pch',
 				     $ENV{'request.course.id'}.
 				     ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
 	    $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" '.
@@ -823,7 +843,8 @@ sub send_msg {
 sub adddiscuss {
     my ($symb,$email,$anon,$attachmenturl,$subject)=@_;
     my $status='';
-    if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
+    if (&discussion_open() &&
+	&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
         ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
 
     my %contrib=('message'      => $email,