test_querysets.py 文件源码

def test_order_by_two_virtual_fields(self):
        ca = Category.objects.create(name='foo a', title='test a', title_nl='testje a')
        cb = Category.objects.create(name='foo b', title='test b', title_nl='testje b')

        Blog.objects.bulk_create([
            Blog(title='a', title_nl='d', category=cb),
            Blog(title='b', title_nl='c', category=cb),
            Blog(title='c', title_nl='b', category=cb),

            Blog(title='z', title_nl='a', category=ca),
            Blog(title='y', title_nl='b', category=ca),
            Blog(title='x', title_nl='c', category=ca)
        ])

        qs = Blog.objects.filter(category__title_nl__contains='test').order_by(
            '-category__title_nl',
            '-title_nl'
        )
        self.assertEquals([m.title for m in qs], 'a b c x y z'.split())