This is a rails.
Ruby on rails controller.
Ruby on rails controller methods.
A controller is a ruby class which inherits from applicationcontroller and has methods just like any other class.
So let s see how that works.
The rails controller is the logical center of your application.
How to write unit functional integration and system tests for your application.
We re gonna generate a greeter controller.
Rails routing from the outside inthis guide covers the user facing features of rails routing after reading this guide you will know.
The controller is also a home to a number of important ancillary services.
Ruby on rails makes it much easier and more fun.
The general layout of a rails application.
Latest version rails 6 0 3 3 released september 10 2020.
Notice that you are capitalizing book and using the singular form.
An example of scaffolding a project for a website about books would look like this.
It includes everything you need to build fantastic applications and you can learn it with the support of our large friendly community.
How to use the rails scaffold command.
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.
How to construct your own routes using either the preferred resourceful style or the match method.
How to interpret the code in config routes rb.
How to quickly generate the starting pieces of a rails.
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 you re gonna see here that rails go off generating a control which is gonna be called the name of the control we gave it controller.
And a migration to prepare your database.
How to declare route parameters which are passed onto controller actions.
Other popular testing approaches and plugins.
A controller is a ruby class which inherits from applicationcontroller and has methods just like any other class.
Class worldcontroller applicationcontroller def hello render text hello world end.
Testing rails applicationsthis guide covers built in mechanisms in rails for testing your application after reading this guide you will know.
So we re gonna do rails g controller greeter.
Getting started with railsthis guide covers getting up and running with ruby on rails after reading this guide you will know.
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.
Let s see an example.
It coordinates the interaction between the user the views and the model.
The basic principles of mvc model view controller and restful design.