Django—指定哪个模型管理器Django admin应该使用。

I've created a custom Manager for a Django model which returns a QuerySet holding a subset of objects.all(). I need this to be the model's default Manager, since I am also creating a custom tag which will retrieve content from any model (specified by an argument), and needs to use the default Manager for the specified model. All that works fine, except - Django Admin is ALSO using the default Manager for this particular model, which means that not all model instances appear in the admin.I've created a custom Manager for a Django mode