--- loncom/interface/loncreatecourse.pm	2005/07/08 14:27:14	1.80
+++ loncom/interface/loncreatecourse.pm	2006/01/16 23:11:50	1.85
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Create a course
 #
-# $Id: loncreatecourse.pm,v 1.80 2005/07/08 14:27:14 www Exp $
+# $Id: loncreatecourse.pm,v 1.85 2006/01/16 23:11:50 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -159,6 +159,14 @@ sub copyresourcedb {
     my %newdata=();
     undef %newdata;
     my $startdate=$data{$origcrsid.'.0.opendate'};
+    if (!$startdate) {
+	# now global start date for assements try the enrollment start
+	my %start=&Apache::lonnet::get('environment',
+				   ['default_enrollment_start_date'],
+				   $origcrsdata{'domain'},$origcrsdata{'num'});
+
+	$startdate = $start{'default_enrollment_start_date'};
+    }
     my $today=time;
     my $delta=0;
     if ($startdate) {
@@ -193,7 +201,13 @@ sub copyresourcedb {
 	$thiskey=~s/^$origcrsid/$newcrsid/;
 	$newdata{$thiskey}=$data{$_};
 	if ($data{$_.'.type'}=~/^date_(start|end)$/) {
-	    $newdata{$thiskey}=$newdata{$thiskey}+$delta;
+	    if ($delta > 0) {
+		$newdata{$thiskey}=$newdata{$thiskey}+$delta;
+	    } else {
+		# no delta, it's unlikely we want the old dates and times
+		delete($newdata{$thiskey});
+		delete($newdata{$thiskey.'.type'});
+	    }
 	}
     }
     return &Apache::lonnet::put
@@ -214,10 +228,13 @@ sub copyuserfiles {
 
 sub copydbfiles {
     my ($origcrsid,$newcrsid)=@_;
+
+    my ($origcrs_discussion) = ($origcrsid=~m|^/(.*)|);
+    $origcrs_discussion=~s|/|_|g;
     foreach (&crsdirlist($origcrsid)) {
 	if ($_=~/\.db$/) {
 	    unless 
-             ($_=~/^(nohist\_|discussiontimes|classlist|versionupdate|resourcedata)/) {
+             ($_=~/^(nohist\_|discussiontimes|classlist|versionupdate|resourcedata|\Q$origcrs_discussion\E|slots|slot_reservations|(grading|review)queue|CODEs)/) {
 		 &copydb($origcrsid,$newcrsid,$_);
 		 my $histfile=$_;
 		 $histfile=~s/\.db$/\.hist/;
@@ -784,7 +801,7 @@ sub construct_course {
             foreach my $item (@sections) {
                 my ($sec,$gp) = split/:/,$item;
                 my $class = $args->{'crscode'}.$sec;
-                my $addcheck = &Apache::lonnet::auto_new_course($crsunum,$crsudom,$class,$cenv{'internal.courseowner'});
+                my $addcheck = &Apache::lonnet::auto_new_course($$crsunum,$$crsudom,$class,$cenv{'internal.courseowner'});
                 $cenv{'internal.sectionnums'} .= $item.',';
                 unless ($addcheck eq 'ok') {
                     push @badclasses, $class;