更新时间:2022-11-30 22:18:52
控制器只是 Ruby类文件,其中包含一系列实例方法
Controllers are just Ruby Class files which have a series of instance methods inside
基本说明
Rails控制器基本上是保存动作(方法)的文件
Rails controllers are basically files where actions (methods) are kept
每次访问Rails应用时,您都在向系统发送请求。 Rails route
内部的各种技术均要求执行某些 action
动作,您的代码可以使用传递的数据来执行某些操作操作
(因此得名)。动作保存在控制器
内部,以提供应用程序结构
Each time you access a Rails app, you're sending a request to the system. The various technologies inside Rails route
that request to a certain action
, where your code can use the passed data to perform some sort of action
(hence the name). The actions are kept inside controllers
to give the application structure
因此,如果您访问 http ://yourapp.com/users/new
,它告诉Rails在 users中加载
控制器。您可以在控制器中进行任意数量的操作,但是您必须告诉Rails new
方法 routes
系统它们在那里,否则将无法访问
So if you access http://yourapp.com/users/new
, it tells Rails to load the new
method in the users
controller. You can have as many actions in the controllers as you want, but you have to tell the Rails routes
system they are there, otherwise they won't be accessible
正确的解释
滑轨 Controllers
只是Ruby类,存储一系列操作
Rails Controllers
are just Ruby Classes, storing a series of actions
操作(实例方法)对传递的数据起作用( params
)创建对象可以传递给模型,也可以在其他方法中使用
The "actions" (instance methods) work on passed data (params
) to create objects that can either be passed to the model, or used inside other methods
每当您向Rails发送请求(访问URL)时,它首先使用 ActionDispatch 中间件,将您的请求发送到正确的Class( controller
)实例方法( action
),然后您的代码会对这些数据进行处理
Whenever you send a request to Rails (access a URL), it first uses the ActionDispatch middleware to send your request to the correct Class (controller
) instance method (action
), and then your code does something with that data
您作为开发人员的工作是将正确的控制器与正确的模型连接起来,并在正确的时间向用户提供正确的数据
Your job as a dev is to connect the right controllers with the right models, presenting the right data the user at the right time