Fix a name error. portal_type was unbound.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@39040 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/Base.py

@@ -2781,7 +2781,8 @@ class Base( CopyContainer,
     """
     if context is None:
       pt = self._getTypesTool()
-      type_info = pt.getTypeInfo(self.getPortalType())
+      portal_type = self.getPortalType()
+      type_info = pt.getTypeInfo(portal_type)
       if type_info is None:
         raise ValueError('No such content type: %s' % portal_type)