Klaus: Raise exception when there is no allowed content type

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@4055 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/Document/Folder.py

@@ -71,6 +71,8 @@ class FolderMixIn(ExtensionClass.Base):
       new_id = str(container.generateNewId(id_group = id_group, default=default, method=method))
     else:
       new_id = str(id)
+    if not container.allowedContentTypes():
+      raise 'NoAllowedContenTypesError'
     if portal_type is None: portal_type = container.allowedContentTypes()[0].id
     self.portal_types.constructContent(type_name=portal_type,
                                        container=container,