Enum ChoiceType column results in error

Howdy folks!

The following code produces TypeError: 'MyEnum' object is not iterable, but should work. Note that this is also involves package sqlalchemy_utils

from enum import Enum

class MyEnum(Enum):
   foo = 1
   bar = 2

class MyModel(Base):
    id = Column(sa.Integer, primary_key=True)
    name = Column(sa.Unicode(255))
    type = Column(ChoiceType(MyEnum, impl=Integer()))

class MyObject(SQLAlchemyObjectType):
    class Meta:
        model = MyModel

[thejcannon]

Sure, but that defeats the automagical nature of using SQLAlchemyObjectType along with model = MyModel 😄. Part of the beauty of this library is that I don’t have to specify the Schema fields, because they are deduced from the SQLAlchemy model.

There’s also the fact that using sqlalchemy.Enum(MyEnum) works but sqlalchemy_utils.ChoiceType(MyEnum) doesn’t 😦.

[erikwrede]

@kurtwiersma if you’re still up for that, feel free to go ahead. It’s probably best to create a new branch for the old release. Would appreciate the effort!