more.emit 0.1

快速启动

安装more.emit：

$ pip install -U more.emit

从emitapp扩展应用程序类：

frommore.ponyimportEmitAppclassApp(EmitApp):pass

现在您可以定义信号：

from.appimportApp@App.signal.on('myevent')defhandler1(arg,request):print(request)print('handler1 called with',arg)@App.signal.on('myevent')defhandler2(arg,request):print('handler2 called with',arg)

例如，您可以从视图发出信号：

@App.json(model=Root)defroot_view(self,request):request.app.signal.emit('myevent','foo',request)return{'name':'Root'}

示例

用户创建时发射信号的示例 以及发送确认电子邮件的用户更新。 本例使用more.pony。

signal.py

from.appimportApp@App.signal.on('user.email_updated')defsend_confirmation_email(user,request):mailer=request.app.service(name='mailer')mailer.send_confirmation_email(user,request)

view.py

@App.json(model=UserCollection,request_method='POST')defuser_collection_add(self,request):email=request.json['email']ifnotUser.exists(email=email):user=self.add(email=email)@request.afterdefafter(response):request.app.signal.emit('user.email_updated',user,request)response.status=201else:@request.afterdefafter(response):response.status=409return{'validationError':'Email already exists'}@App.json(model=User,request_method='PUT')defuser_update(self,request):if'email'inrequest.jsonandUser.exists(email=request.json['email']):@request.afterdefafter(response):response.status=409return{'validationError':'Email already exists'}else:self.update(request.json)if'email'inrequest.json:self.email_confirmed=False@request.afterdefafter(response):request.app.signal.emit('user.email_updated',self,request)