[Sqlalchemy-tickets] Issue #3048: Validator methods are not called for synonyms and inherited columns (zzzeek/sqlalchemy)

[Dariusz G. <iss...@bi...>]

New issue 3048: Validator methods are not called for synonyms and inherited columns
https://bitbucket.org/zzzeek/sqlalchemy/issue/3048/validator-methods-are-not-called-for

Dariusz Górecki:

Consider following example of joined-table inheritance:

    class Parent(DeclarativeBase):
        # ...
        parent_column = Column(String(255))

    class Child(Parent):
        # ...
        child_column = synonym('parent_column')

        @validates('child_column')  # @validates('parent_column') also does not work
        def validator(self, name, value):
            # not called at all
            raise ValueError()

The `validator` method is never called