--- loncom/interface/lonclonecourse.pm	2008/09/11 13:19:28	1.7
+++ loncom/interface/lonclonecourse.pm	2010/02/26 22:45:03	1.7.12.1
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # routines for clone a course
 #
-# $Id: lonclonecourse.pm,v 1.7 2008/09/11 13:19:28 raeburn Exp $
+# $Id: lonclonecourse.pm,v 1.7.12.1 2010/02/26 22:45:03 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -30,6 +30,7 @@
 package Apache::lonclonecourse;
 use LONCAPA;
 use Apache::lonnet;
+use Apache::loncoursedata;
 
 # ================================================ Get course directory listing
 
@@ -241,4 +242,67 @@ sub copycoursefiles {
     &copyresourcedb($origcrsid,$newcrsid,$date_mode,$date_shift);
 }
 
+sub copyroster {
+    my ($origcrsid,$newcrsid,$accessstart,$accessend) = @_;
+    my %origcrsdata=&Apache::lonnet::coursedescription($origcrsid);
+    my $newcrsiddata=&Apache::lonnet::coursedescription($newcrsid);
+
+    my $classlist = 
+        &Apache::loncoursedata::get_classlist($origcrsdata{'domain'},$origcrsdata{'num'});
+    my %origdate = &Apache::lonnet::get('environment',
+                      ['default_enrollment_end_date'],
+                      $origcrsdata{'domain'},$origcrsdata{'num'});
+
+    my $enddate = $origdate{'default_enrollment_end_date'};
+
+    my $sec_idx  = &Apache::loncoursedata::CL_SECTION();
+    my $status_idx   = &Apache::loncoursedata::CL_STATUS();
+    my $end_idx = &Apache::loncoursedata::CL_END();
+    my $start_idx = &Apache::loncoursedata::CL_START();
+
+    my (%newstudents,%rolesadded,$numadded);
+    my $numadded = 0;
+    my $classlist = &Apache::loncoursedata::get_classlist();
+    if (ref($classlist) eq 'HASH') {
+        foreach my $student (sort(keys(%{$classlist}))) {
+            my ($sname,$sdom) = split(/:/,$student);
+            next if ($classlist->{$student}->[$end_idx] eq '-1'
+                   || ($classlist->{$student}->[$start_idx] eq '-1'));
+            if (($classlist->{$student}->[$status_idx] eq 'Active') ||
+                ($classlist->{$student}->[$end_idx] >= $enddate)) {
+                if (ref($classlist->{$student}) eq 'ARRAY') {
+                    my @info = @{$classlist->{$student}};
+                    $info[$end_idx] = $accessend;
+                    $info[$start_idx] = $accessstart;
+                    $newstudents{$student}{'info'} = join(':',@info);
+                    $newstudents{$student}{'section'} = 
+                        $classlist->{$student}->[$sec_idx];
+                }
+            }
+        }
+    }
+    if (keys(%newstudents)) {
+        my $uurl='/'.$newcrsid;
+        $uurl=~s/\_/\//g;
+        foreach my $student (sort(keys(%newstudents))) {
+            my $surl = $uurl;  
+            if ($newstudents{$student}{'section'}) {
+                $surl.='/'.$newstudents{$student}{'section'};
+            }
+            if (&assignrole($sdom,$sname,$uurl,'st',$accessend,$accessstart,undef,undef,'requestcourses') eq 'ok') {
+                $rolesadded{$student} = $newstudents{$student};
+                $numadded ++ ;
+            }
+        }
+    }
+    my $clisterror;
+    if (keys(%rolesadded) > 0) {
+        my $reply=cput('classlist',\%rolesadded,$newcrsdata{'domain'},$newcrsdata{'num'});
+        unless (($reply eq 'ok') || ($reply eq 'delayed')) {
+            $clisterror = 'error: '.$reply;
+        }
+    }
+    return ($numadded,$clisterror);
+}
+
 1;