a hierarchical order line can acquire resource from the parent order line

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@26016 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/PropertySheet/TradeOrderLine.py

@@ -33,7 +33,7 @@ class TradeOrderLine:
   _constraints = (
     { 'id'            : 'resource',
       'description'   : 'Resource must be defined',
-      'type'          : 'CategoryMembershipArity',
+      'type'          : 'CategoryAcquiredMembershipArity',
       'min_arity'     : '1',
       'max_arity'     : '1',
       'portal_type'   : ( ),