test_models.py 文件源码

def test_order_by_inheritance():
    class Base(TestModel):
        created = DateTimeField()

        class Meta:
            order_by = ('-created',)

    class Foo(Base):
        data = CharField()

    class Bar(Base):
        val = IntegerField()
        class Meta:
            order_by = ('-val',)

    foo_order_by = Foo._meta.order_by[0]
    assert isinstance(foo_order_by, Field)
    assert foo_order_by.model_class is Foo
    assert foo_order_by.name == 'created'

    bar_order_by = Bar._meta.order_by[0]
    assert isinstance(bar_order_by, Field)
    assert bar_order_by.model_class is Bar
    assert bar_order_by.name == 'val'