Django从ManyToMany关系中删除对象 [英] Django removing object from ManyToMany relationship

问题描述

如果不删除实际对象，我将如何从多对多关系中删除对象？

How would i delete an object from a Many-to-Many relationship without removing the actual object?

示例：

我有模型心情和兴趣。

心情有许多到很多字段兴趣（这是一个 models.ManyToManyField（兴趣） ）。

'Mood' has a many to many field interests (which is a models.ManyToManyField(Interest)).

我创建一个 Moods 的实例称为 my_mood 。在my_moods的兴趣领域，我有 my_interest ，意思是

I create an instance of Moods called my_mood. In my_moods's interests field I have my_interest, meaning

>>> my_mood.interests.all()
[my_interest, ...]

从my_mood中删除my_interest，而不删除任何一个模型实例？换句话说，如何在不影响相关模型的情况下删除关系？

How do I remove my_interest from my_mood without deleting either model instance? In other words, how do I remove the relationship without affecting the related models?

推荐答案

my_mood.interests.remove(my_interest)

Django的关系文档

注意：您可能需要使用my_mood和my_instance的实例 Django的QuerySet API ，然后才能执行此代码。

Note: you might have to get an instance of my_mood and my_instance using Django's QuerySet API before you can execute this code.

这篇关于Django从ManyToMany关系中删除对象的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！