在管理员中显示来自信号的自定义消息 [英] Display custom message from signal in the admin

问题描述

我有一个预保存的信号监听器，可以更新第二个模型.与此示例相同:

I have a pre-save signal listener that updates a second model. The same as this example:

• Django Signals更新其他模型

我想让用户知道侦听器成功更新了模型并提供了一些信息.通常，我认为我可以使用django具有的内置消息功能.问题在于信号无法访问请求".所以我看不到如何使用内置的Django Messages Framework.

I'd like to let the user know that the listener succeeded in updating the model and provide some information. Normally, I would think I could use the built in messages functionality that django has. The problem is that the signal doesn't have access to 'request'. So I can't see how to use the built in Django Messages Framework.

• https://docs.djangoproject.com/en/dev/ref/contrib/messages/

是否存在用于向管理员中的用户发送消息的已知方法?也许通过覆盖其中一个模型的save()方法?(发送信号或接收信号的人)，但我也不认为save()方法也可以访问请求"吗?

Is there a known method for sending a message to the user in the admin? Maybe by overriding the save() method for one of the models? (the one sending the signal, or receiving), but I don't think the save() method has access to 'request' either?

这一定是其他人也想做的吗?

This must be something others want to do as well?

推荐答案

您可以覆盖 save_model 方法.像这样:

You can override save_model method in ModelAdmin. Something like this:

from django.contrib import messages
# your imports
...
# your code

def save_model(self, request, obj, form, change):
    obj.user = request.user  
    obj.save()
    # you can just call super(YourModelAdminName, self).save_model(request, obj, form, change)
    messages.add_message(request, messages.INFO, 'Text of message')

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