Use newer config strategy for all views

to make inheritance easier

tailbone/views/purchasing/costing.py

@@ -377,5 +377,12 @@ class NewCostingBatch(colander.Schema):
                                    validator=valid_workflow)
 
 
-def includeme(config):
+def defaults(config, **kwargs):
+    base = globals()
+
+    CostingBatchView = kwargs.get('CostingBatchView', base['CostingBatchView'])
     CostingBatchView.defaults(config)
+
+
+def includeme(config):
+    defaults(config)

tailbone/views/purchasing/ordering.py

@@ -527,5 +527,12 @@ class OrderingBatchView(PurchasingBatchView):
                                        "Download {} as Excel".format(model_title))
 
 
-def includeme(config):
+def defaults(config, **kwargs):
+    base = globals()
+
+    OrderingBatchView = kwargs.get('OrderingBatchView', base['OrderingBatchView'])
     OrderingBatchView.defaults(config)
+
+
+def includeme(config):
+    defaults(config)

tailbone/views/purchasing/receiving.py

@@ -2082,5 +2082,12 @@ class DeclareCreditForm(colander.MappingSchema):
                                           missing=colander.null)
 
 
-def includeme(config):
+def defaults(config, **kwargs):
+    base = globals()
+
+    ReceivingBatchView = kwargs.get('ReceivingBatchView', base['ReceivingBatchView'])
     ReceivingBatchView.defaults(config)
+
+
+def includeme(config):
+    defaults(config)