我希望在删除某些对象时通知管理员,但我也想确定哪个用户正在执行删除。
是否可以?
这是代码:
# models.py
# signal to notify admins when nodes are deleted
from django.db.models.signals import post_delete
from settings import DEBUG
def notify_on_delete(sender, instance, using, **kwargs):
''' Notify admins when nodes are deleted. Only for production use '''
if DEBUG:
#return False
pass
# prepare context
context = {
'node': instance,
'site': SITE
}
# notify admins that want to receive notifications
notify_admins(instance, 'email_notifications/node-deleted-admin_subject.txt', 'email_notifications/node-deleted-admin_body.txt', context, skip=False)
post_delete.connect(notify_on_delete, sender=Node)
我怀疑是否可以使用内置信号(没有User
隐含地绑定到delete
操作,并且由于 Django 的松耦合 https://docs.djangoproject.com/en/dev/misc/design-philosophies/?from=olddocs#loose-coupling数据库层不处理HttpRequest
对象)。我会创建自己的信号,它提供了user
参数并将其发送到发生删除操作的任何视图中,例如:
# myapp/signals.py
from django.dispatch import Signal
my_post_delete = Signal(providing_args=['instance', 'user'])
# myapp/models.py
from myapp.signals import my_post_delete
...
my_post_delete.connect(notify_on_delete, sender=Node)
# myapp/views.py
from myapp.signals import my_post_delete
...
@login_required
def my_delete_view(request, ...)
...
instance = Node.objects.get(...)
instance.delete()
my_post_delete.send(sender=Node, instance=instance, user=request.user)
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