I want to implement a custom django.db.models.manager.Manager (let's call it MyManager) for MyModel.
我想为MyModel实现一个自定义的django.db.models.manager.Manager(让我们称之为MyManager)。
The methods in MyManager needs to invoke filter methods on AnotherModel.
MyManager中的方法需要在AnotherModel上调用过滤器方法。
Is this possible ? I'm getting an ImportError because of this.
这可能吗 ?因为这个我得到了一个ImportError。
1 个解决方案
#1
1
In your MyModel, you need to add your MyManager as an explicit manager.
在MyModel中,您需要将MyManager添加为显式管理器。
class MyModel(models.Model):
objects = MyManager()
You can retain the standard Manager and have your manager both, by including this manager by another name.
您可以保留标准管理器并让您的经理同时使用其他名称包含此经理。
class MyModel(models.Model):
myobjects = MyManager()
If you are using the django-admin, there are nuances involved in what manager's objects are picked up. You can find those and many other details from the awesome django documentation.
如果您使用的是django-admin,那么管理员的对象将被捕获的细微差别。您可以从令人敬畏的django文档中找到这些和许多其他细节。
#1
1
In your MyModel, you need to add your MyManager as an explicit manager.
在MyModel中,您需要将MyManager添加为显式管理器。
class MyModel(models.Model):
objects = MyManager()
You can retain the standard Manager and have your manager both, by including this manager by another name.
您可以保留标准管理器并让您的经理同时使用其他名称包含此经理。
class MyModel(models.Model):
myobjects = MyManager()
If you are using the django-admin, there are nuances involved in what manager's objects are picked up. You can find those and many other details from the awesome django documentation.
如果您使用的是django-admin,那么管理员的对象将被捕获的细微差别。您可以从令人敬畏的django文档中找到这些和许多其他细节。