details: http://www.bx.psu.edu/hg/galaxy/rev/5a4aac327bad changeset: 2379:5a4aac327bad user: James Taylor <james(a)jamestaylor.org&gt; date: Wed Apr 29 10:27:57 2009 -0400 description: Fix for issubtype in workflow editor, would cause problems drawing connections for types with no inheritence relationships 1 file(s) affected in this change: static/scripts/galaxy.workflow_editor.canvas.js diffs (12 lines): diff -r e0534b25c282 -r 5a4aac327bad static/scripts/galaxy.workflow_editor.canvas.js --- a/static/scripts/galaxy.workflow_editor.canvas.js Tue Apr 28 15:32:44 2009 -0400 +++ b/static/scripts/galaxy.workflow_editor.canvas.js Wed Apr 29 10:27:57 2009 -0400 @@ -645,7 +645,7 @@ function issubtype( child, parent ) { child = ext_to_type[child]; parent = ext_to_type[parent]; - return ( parent in type_to_type[child] ); + return ( type_to_type[child] ) && ( parent in type_to_type[child] ); }; function populate_datatype_info( data ) {