Django 配置文件更新现有配置文件

Question

我有以下信号，用于在新用户注册时创建配置文件，然后向管理员发送电子邮件，通知他们新用户

@receiver(post_save, sender=User)
def create_user_profile(sender, **kwargs):
'''Create a profile for a new user'''
if kwargs['created']:
Profile.objects.create(user=kwargs['instance'])

@receiver(post_save, sender=User)
def notify_admin(sender, instance, created, **kwargs):
'''Notify the administrator that a new user has been added.'''
if created:
subject = 'New Registration created'
message = 'A new candidate  %s has registered with the site' % instance.email
from_addr = '[e-mail]'
recipient_list = ('[e-mail]', )
send_mail(subject, message, from_addr, recipient_list)

我也希望在个人资料更新时通知管理员，但正在努力提出解决方案。

有什么想法吗？

Answer 1

方法 -1
如@Ralf所说，对模型使用不同的信号Profile并检查created标志

@receiver(post_save, sender=Profile)
def profile_update_signal(sender, instance, created, **kwargs):
# Profile update signal
if not created:
# do something here <<<<<<
send_mail()

方法- 2覆盖Profile模型的save()方法

class Profile(models.Model):
# your fields
def save(self, *args, **kwargs):
if self.pk:  # not a new object
# do something here <<<<<<
send_mail()
super(Profile, self).save(*args, **kwargs)