Django覆盖bulk_create [英] Django override bulk_create
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问题描述
如何覆盖bulk_create方法?我试试这个
How to override bulk_create method? I try this
class SomeModel(models.Model):
field = models.CharField()
def bulk_create(self, objs, batch_size=None):
#do something
return super(SomeModel, self).bulk_create(objs, batch_size)
但这不起作用。当我运行此代码时
But it doesn't work. When I run this code
SomeModel.objects.bulk_create(objects_list)
它正在创建新对象,但是不使用我的重写bulk_create方法。是否可以覆盖bulk_create?如何?
It's create new objects, but it doesn't use my override bulk_create method. Is it possible to override bulk_create? And how?
推荐答案
bulk_create
是上的一种方法Manager
类和 SomeModel.objects
是 Manager
的实例。您需要将 Manager
子类化并在那里重写方法,然后将管理器添加到 SomeModel
:
bulk_create
is a method on the Manager
class, and SomeModel.objects
is an instance of Manager
. You need to subclass Manager
and override the method there, then add the manager to SomeModel
:
class SomeModelManager(models.Manager):
def bulk_create(self, objs, batch_size=None, ignore_conflicts=False):
...
class SomeModel(models.Model):
objects = SomeModelManager()
请参阅自定义经理中的文档了解更多信息。
See the documentation on custom managers for more information.
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