How do I set up a controller in Rails?

How do I set up a controller in Rails?

To set up a controller in Rails, you can use the command rails generate controller ControllerName. This will create a new controller file.

What files are created when I generate a controller?

When you generate a controller, Rails creates a controller file, a view directory for the controller, and a helper file.

Can you show me an example of a simple controller?

Sure! Here's a simple example:

class PostsController < ApplicationController
  def index
    @posts = Post.all
  end
end

How do I add actions to my controller?

You can add actions by defining methods within your controller class. For example, def show for showing a single post.