Get attribute settings off a model

django-model-fields.py

# get_fields :: Model -> [Field]
def get_fields(model):
    return model._meta.get_fields()


# get_field :: String -> Model -> Field
@curry
def get_field(name, model):
    return model._meta.get_field(name)


# is_required :: String -> Model -> Boolean
@curry
def is_required(name, model):
    return get_field(name, model).null is False


# is_optional :: String -> Model -> Boolean
@curry
def is_optional(name, model):
    return not is_required(name, model)

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