Let s see an example.
Ruby on rails controller.
The general layout of a rails application.
Getting started with railsthis guide covers getting up and running with ruby on rails after reading this guide you will know.
Ruby on rails makes it much easier and more fun.
Testing rails applicationsthis guide covers built in mechanisms in rails for testing your application after reading this guide you will know.
How to declare route parameters which are passed onto controller actions.
And a migration to prepare your database.
How to construct your own routes using either the preferred resourceful style or the match method.
Other popular testing approaches and plugins.
This is a rails.
So let s see how that works.
How to install rails create a new rails application and connect your application to a database.
A controller is a ruby class which inherits from applicationcontroller and has methods just like any other class.
An example of scaffolding a project for a website about books would look like this.
It coordinates the interaction between the user the views and the model.
How to interpret the code in config routes rb.
We re gonna generate a greeter controller.
The rails controller is the logical center of your application.
Rails routing from the outside inthis guide covers the user facing features of rails routing after reading this guide you will know.
How to use the rails scaffold command.
Views for every standard controller action index edit show new a new route.
When your application receives a request the routing will determine which controller and action to run then rails creates an instance of that controller and runs the method with the same name as the action.
So we re gonna do rails g controller greeter.
Class worldcontroller applicationcontroller def hello render text hello world end.
How to quickly generate the starting pieces of a rails.
Rails g scaffold books.
How to write unit functional integration and system tests for your application.
Ruby on rails controller methods.
A controller is a ruby class which inherits from applicationcontroller and has methods just like any other class.
The basic principles of mvc model view controller and restful design.
It includes everything you need to build fantastic applications and you can learn it with the support of our large friendly community.
And the hello is the action name and it s also going to be the name of a view.
Each public method in a controller is callable by the standard url scheme controller action.
Notice that you are capitalizing book and using the singular form.
When your application receives a request the routing will determine which controller and action to run then rails creates an instance of that controller and runs the method with the same name as the action.
