• Julien Muchembled's avatar
    fixup! New portal type: External Method · fd4880ce
    Julien Muchembled authored
    This fixes commit ea53f23e:
    
      ERROR Application Couldn't install ERP5Type
      Traceback (most recent call last):
        File "OFS/Application.py", line 691, in install_product
          initmethod(context)
        File "Products/ERP5Type/__init__.py", line 141, in initialize
          initializeProductDocumentRegistry()
        File "Products/ERP5Type/InitGenerator.py", line 62, in initializeProductDocumentRegistry
          importLocalDocument(class_id, class_path=class_path)
        File "Products/ERP5Type/Utils.py", line 994, in importLocalDocument
          module = __import__(module_path, {}, {}, (module_path,))
        File "Products/ERP5/Document/ExternalMethod.py", line 38, in <module>
          class ExternalMethod(XMLObject, ZopeExternalMethod, ExpressionMixin):
      TypeError: Error when calling the metaclass bases
          metaclass conflict: the metaclass of a derived class must be a (non-strict) subclass of the metaclasses of all its bases
    
    What happened is that the API of ExpressionMixin changed in commit
    df85ef46 and the backward compatibility
    code (product/ERP5/mixin/expression.py) was broken.
    
    Also fix 'filter' tab on in the catalog.
    See also commit 6ad56d89.
    fd4880ce
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