Django覆盖bulk_create [英] Django override bulk_create

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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