问题描述
有人可以解释以下含义吗?
Could someone please explain what the following means:
每个示例的一般区别是什么以及几个示例.谢谢你.
What is the general distinction for each as well as a few examples. Thank you.
推荐答案
您可能刚刚在另一个问题的评论中提问了;).
You could've just asked in the comments on the other question ;).
业务逻辑是与事物"的工作或操作方式相关的任何事物.例如以下内容:
Business logic is anything that's related to how a "thing" works or operates. Take for example the following:
class Animal(Object):
def speak(self, sound):
print sound
class Duck(Animal):
has_feathers = True
做类似的事情是不正确的:
It would be incorrect to do something like:
>>> myduck = Duck()
>>> myduck.speak('Quack!')
Quack!
鸭子发出嘎嘎"声的事实.是业务逻辑,应该在模型中:
The fact that a duck makes the sound of 'Quack!' is business logic, and should be in the model:
class Duck(Animal):
has_feathers = True
makes_sound = 'Quack!'
def speak(self):
super(Duck, self).speak(self.makes_sound)
您不一定需要了解所有这些内容;我们要做的就是确保Duck
讲话时说"Quack!":
You don't necessarily need to understand all that; all we're doing is ensuring that when a Duck
speaks it says 'Quack!':
>>> myduck = Duck()
>>> myduck.speak()
Quack!
查看逻辑将与处理请求并返回某种响应有关.使用前面的示例,我们的视图将包含实例化Duck
对象并使之说话的代码.
View logic would be anything related to processing a request and returning some sort of response. Using the previous example, our view would contain the code to instantiate a Duck
object and make it speak.
myduck = Duck()
myduck.speak()
响应"就是嘎嘎!".
这篇关于Django分离业务逻辑和视图逻辑的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!