在syncdb中，django-messages是如何创建通知类型的？

Question

我使用的django-notification和django-messages项目组合在一起，并采取内置于Django的消息，其违约通知类型收到短信时的Django的通知整合的优势，回复等

然而，我无法确定如何创建这些默认的NoticeType对象。 Django通知文档建议在management.py文件中使用post_syncdb信号，这是我为自己的自定义通知所做的。我无法在这些通知类型定义的任何代码中找到任何地方。然而，每当我在新数据库上运行syncdb时，它们都会奇迹般地出现。

正在由Django的消息的应用程序所创建的通知类型的 “标记” 属性如下：

• messages_received
• messages_sent
• messages_replied
• messages_reply_received
• messages_deleted
• messages_recovered

Answer 1

django_messages/management.py：

from django.db.models import get_models, signals 
from django.conf import settings 
from django.utils.translation import ugettext_noop as _ 

if "notification" in settings.INSTALLED_APPS: 
    from notification import models as notification 

    def create_notice_types(app, created_models, verbosity, **kwargs): 
     notification.create_notice_type("messages_received", _("Message Received"), _("you have received a message"), default=2) 
     notification.create_notice_type("messages_sent", _("Message Sent"), _("you have sent a message"), default=1) 
     notification.create_notice_type("messages_replied", _("Message Replied"), _("you have replied to a message"), default=1) 
     notification.create_notice_type("messages_reply_received", _("Reply Received"), _("you have received a reply to a message"), default=2) 
     notification.create_notice_type("messages_deleted", _("Message Deleted"), _("you have deleted a message"), default=1) 
     notification.create_notice_type("messages_recovered", _("Message Recovered"), _("you have undeleted a message"), default=1) 

    signals.post_syncdb.connect(create_notice_types, sender=notification) 
else: 
    print "Skipping creation of NoticeTypes as notification app not found" 

https://github.com/arneb/django-messages/blob/master/django_messages/management.py

类型在这里定义和钩在post_syncdb信号。