we must not assume that we always have the getSimulationState method

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@2949 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/OrderLine.py

@@ -107,9 +107,11 @@ class OrderLine(DeliveryLine):
           (Called when the object is created or moved.)
       """
       DeliveryLine.manage_afterAdd(self, item, container)
-      if self.aq_parent.getSimulationState() not in self.getPortalDraftOrderStateList():
-        # Only reexpand order rule when we add lines
-        self.aq_parent.activate()._createOrderRule()
+      # Make sure we have a workflow with the variable name 'simulation_state'
+      if getattr(self.getParent(),'getSimulationState'):
+        if self.getParent().getSimulationState() not in self.getPortalDraftOrderStateList():
+          # Only reexpand order rule when we add lines
+          self.aq_parent.activate()._createOrderRule()
 
     # Simulation Consistency Check
     def getSimulationQuantity(self):