如何将kwargs从保存到post_save信号 [英] How to pass kwargs from save to post_save signal

问题描述

我正在配置一个自定义post_save信号，并注意到我似乎找不到一个简单的方法来传递一组kwargs。

I'm wiring up a custom post_save signal and noticed that I can't seem to find an easy way to pass a set of kwargs.

在保存期间本身（自定义窗体内）

During the save itself (inside a custom form)

def save(self, commit=True):
    user = super(CustomFormThing, self).save(commit=False)
    #set some other attrs on user here ...
    if commit:
        user.save()

    return user

然后在我的自定义post_save钩子我有以下（但从来没有得到任何kwargs）

Then inside my custom post_save hook I have the following (but never get any kwargs)

@receiver(post_save, sender=User)
def create_profile(sender, instance, created, **kwargs):
    some_id = kwargs.get('some', None)
    other_id = kwargs.get('other', None)

    if created:
        #do something with the kwargs above...

如何将kwargs从保存传递到post_save事件？ >

How might I pass kwargs from the save to the post_save event?

推荐答案

内置n信号由Django发送，所以你不能控制他们的kwargs。

Built-in signals are sent by Django, so you can't control their kwargs.

你可以：

1. 定义并发送您自己的信号。



2. 在模型实例中存储附加信息。像这样

1. Define and send your own signals.

2. Store additional info in model instance. Like this

def save(self, commit=True):
    user = super(CustomFormThing, self).save(commit=False)
    #set some other attrs on user here ...
    user._some = 'some'
    user._other = 'other'
    if commit:
        user.save()

    return user

@receiver(post_save, sender=User)
def create_profile(sender, instance, created, **kwargs):
    some_id = getattr(instance, '_some', None)
    other_id = getattr(instance, '_other', None)

    if created:
        #do something with the kwargs above...

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