add a constraint to make sure the currency is defined, otherwise accounting

generation will fail



git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@20982 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/PropertySheet/TradeOrder.py

@@ -67,6 +67,13 @@ class TradeOrder:
       'destination': 1,
       'message': 'Recipient or Beneficiary must be defined',
     },
+    { 'id'            : 'price_currency_category_existence',
+      'description'   : 'Price Currency must be defined',
+      'type'          : 'CategoryExistence',
+      'portal_type'   : ('Currency', ),
+      'price_currency': 1,
+      'message': 'Currency must be defined',
+    },
     { 'id'            : 'total_quantity',
       'description'   : 'Total Quantity must not be 0',
       'type'          : 'TALESConstraint',