Django - 发送有关模型更改的电子邮件 [英] Django - send email on model change

问题描述

我想在模型中的特定字段发生更改时发送电子邮件.是否可以?这就是我要找的.我有一个包含 BooleanField 的配置文件模型，当管理员选择为 true 时，我想向用户发送电子邮件.我知道我可以将它放在def save(self):"中，但是，只要模型更改并且字段为真，就会触发电子邮件.如果该字段从 False 更改为 True，有没有办法让它只发送电子邮件?

I want to send an email when a specific field is changed in a model. Is it possible? Here is what I am looking for. I have a profile model that includes a BooleanField that when the administrator selects to be true I want to send user an email. I know I could put it in a "def save(self):" but, that fires off an email anytime the model is changed and the field is true. Is there a way to have it only email if the field was changed from False to True?

推荐答案

save 方法非常适合您想要做的事情:

save method is a perfectly good place for what you want to do:

def save(self):
    if self.id:
        old_foo = Foo.objects.get(pk=self.id)
        if old_foo.YourBooleanField == False and self.YourBooleanField == True:
            send_email()
    super(Foo, self).save()

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