Implementation of relation setters

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@1160 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/skins/erp5_core/update_relation.py

@@ -25,15 +25,28 @@ if request.has_key('previous_form_id'):
 form = getattr(context, form_id)
 field = form.get_field(field_id)
 base_category = field.get_value('base_category')
+relation_setter_id = field.get_value('relation_setter_id')
+if relation_setter_id: relation_setter = getattr(o, relation_setter_id)
 portal_type = map(lambda x:x[0],field.get_value('portal_type'))
 
 if uids != []:
+  if relation_setter_id:
+    # Clear the relation
+    relation_setter((), portal_type=portal_type)
+    # Warning, portal type is at strange value because of form
+    # And update it
+    relation_setter(uids, portal_type=portal_type)
+  else:
     # Clear the relation
     o.setValueUids(base_category, (), portal_type=portal_type)
     # Warning, portal type is at strange value because of form
     # And update it
     o.setValueUids(base_category, uids, portal_type=portal_type)
 else:
+  if relation_setter_id:
+    # Clear the relation
+    relation_setter((), portal_type=portal_type)
+  else:    
     # Clear the relation
     o.setValueUids(base_category,  (), portal_type=portal_type)