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Rails Generate Controller

we can create a new controller with rails g controller command.

$ bin/rails generate controller controller_name

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The controller generator is expecting parameters in the form of generate controller ControllerName action1 action2. The following creates a Greetings controller with an action of hello.

$ bin/rails generate controller Greetings hello

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create  app/controllers/greetings_controller.rb
      route  get "greetings/hello"
     invoke  erb
     create    app/views/greetings
     create    app/views/greetings/hello.html.erb
     invoke  test_unit
     create    test/controllers/greetings_controller_test.rb
     invoke  helper
     create    app/helpers/greetings_helper.rb
     invoke  assets
     invoke    coffee
     create      app/assets/javascripts/greetings.coffee
     invoke    scss
     create      app/assets/stylesheets/greetings.scss

This generates the following

File	Example
Controller File	`greetings_controller.rb`
View File	`hello.html.erb`
Functional Test File	`greetings_controller_test.rb`
View Helper	`greetings_helper.rb`
JavaScript File	`greetings.coffee`

It will also add routes for each action in routes.rb

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