--- loncom/interface/lonnavmaps.pm 2016/03/02 20:07:20 1.516
+++ loncom/interface/lonnavmaps.pm 2016/03/17 13:20:35 1.517
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# Navigate Maps Handler
#
-# $Id: lonnavmaps.pm,v 1.516 2016/03/02 20:07:20 raeburn Exp $
+# $Id: lonnavmaps.pm,v 1.517 2016/03/17 13:20:35 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -2768,11 +2768,13 @@ sub parmval_real {
sub recurseup_maps {
my ($self,$mapname) = @_;
my @recurseup;
- my @pcs = split(/,/,$self->getResourceByUrl(&Apache::lonnet::clutter($mapname))->map_hierarchy());
- shift(@pcs);
- pop(@pcs);
- if (@pcs) {
- @recurseup = map { &Apache::lonnet::declutter($self->getByMapPc($_)->src()); } reverse(@pcs);
+ if ($mapname) {
+ my @pcs = split(/,/,$self->getResourceByUrl(&Apache::lonnet::clutter($mapname))->map_hierarchy());
+ shift(@pcs);
+ pop(@pcs);
+ if (@pcs) {
+ @recurseup = map { &Apache::lonnet::declutter($self->getByMapPc($_)->src()); } reverse(@pcs);
+ }
}
return @recurseup;
}
500 Internal Server Error
Internal Server Error
The server encountered an internal error or
misconfiguration and was unable to complete
your request.
Please contact the server administrator at
root@localhost to inform them of the time this error occurred,
and the actions you performed just before this error.
More information about this error may be available
in the server error log.