Django代理模型返回父模型

I am having a strange issue here with django 1.6.5.

我对django有个奇怪的问题。

In distribution.models I have:

from core.models import Book, Person

class Proxy1(Book):
    class Meta:
        proxy = True

class Proxy2(Person):
    class Meta:
        proxy = True

how can this happen?:

>>> from distribution.models import Proxy1, Proxy2
>>> type(Proxy1.objects.first())
<class 'core.models.Book'>
>>> type(Proxy2.objects.first())
<class 'distribution.models.Proxy2'>

Any ideas where to hunt for the cause?

有什么办法去寻找这个原因吗?

1 个解决方案

#1

After a lot of hours hunting I finally found the culprit. The MoneyField from the django-money package does some dark magic on the model manager that somehow breaks returning the correct model class for proxy models. I filed an issue: https://github.com/jakewins/django-money/issues/80

经过几个小时的搜捕，我终于找到了罪犯。来自django-money包的MoneyField对模型管理器做了一些黑暗的魔法，以某种方式破坏了为代理模型返回正确的模型类。我提交了一个问题:https://github.com/jakewins/django-money/issues/80

I settled with an easy workaround by manually overriding the 'objects' attribute on the proxy class like this:

通过手动覆盖代理类上的“对象”属性，我解决了一个简单的解决方案:

class ProxyModel(SomeModelWithMoneyField):

    # This fixes django-money that would else return parent objects
    objects = models.Manager()

    class Meta:
        proxy=True

In distribution.models I have:

how can this happen?:

1 个解决方案

#1

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