an import was missing

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@164 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/FormulatorPatch.py

@@ -21,9 +21,12 @@
 ##############################################################################
 
 from Products.Formulator.Field import Field
+from AccessControl import ClassSecurityInfo
 
 class PatchedField:
 
+    security = ClassSecurityInfo()
+
     security.declareProtected('Access contents information',
                               'generate_field_key')
     def generate_field_key(self, validation=0, key=None):