django - StringField 被定义为唯一的，但重复项被静默保存

Question

我定义了一个简单的文档，如下所示：

class Company(Document):
    screen_name = StringField(max_length=100, required=True, unique=True)
    official_name = StringField(required=False)

    meta = {
        'indexes': [{'fields': 'screen_name', 'unique': True}]
    }

但是当我写测试时

@use_tdb
def test_company3():
    """ test company2 """
    company = Company(screen_name='asdasd')
    company.save()
    company = Company(screen_name='asdasd')
    with nt.assert_raises(OperationError):
        company.save()
        pprint([(x.id, x.screen_name,) for x in Company.objects.all()])

它实际上拯救了他们两个。我在输出中看到：

[(ObjectId('4f719f915c121a21ad000003'), u'asdasd'),
 (ObjectId('4f719f915c121a21ad000004'), u'asdasd')]

任何想法，我做错了什么？

谢谢

Answer 1

这可能需要 drop_collection。

def test_company3():
    """ test company2 """
    Company.drop_collection()
    company = Company(screen_name='asdasd')
    company.save()
    company = Company(screen_name='asdasd')
    with nt.assert_raises(OperationError):
        company.save()
    pprint([(x.id, x.screen_name,) for x in Company.objects.all()])

请参阅此测试。Mongoengine 是所有测试都通过了。 https://github.com/hmarr/mongoengine/blob/master/tests/document.py#L875

Mongoengine 团队最近发布了 0.6.3。