Do not fail even if a translation domain is not defined.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@8149 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/Accessor/Translation.py

@@ -102,9 +102,12 @@ class PropertyTranslationDomainGetter(Method):
       ptype_domain = None
       ptype = instance.getPortalType()
       ptypes_tool = instance.getPortalObject()['portal_types']
-      ptype_domain = ptypes_tool[ptype]\
-                      .getPropertyTranslationDomainDict()\
-                      [self._original_key].getDomainName()
+      domain_dict = ptypes_tool[ptype].getPropertyTranslationDomainDict()
+      domain = domain_dict.get(self._original_key)
+      if domain is None:
+        ptype_domain = ''
+      else:
+        ptype_domain = domain.getDomainName()
       if ptype_domain is '' and default is not None:
         # then get the default property defined on property sheet
         value = default