rails generate code example
Example 1: rails g model
$ rails generate model Article title:string text:text
Example 2: how to generate a controller in rails
$ rails generate controller Greetings hello
# Below are the files this generator creates
# hello would create a view file
# to create the controller without creating the view file enter:
# rails generate controller Greetings
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 test_unit
invoke assets
invoke scss
create app/assets/stylesheets/greetings.scss
Example 3: rails command line
rails new app_name #creates a new rails application
rails server or rails s #runs the rails server
rails generate or rails g #gives a list of available generators
rails console or rails c #opens up the rails console that allows you
# to interact with your rails application
rails destroy or rails d #allows you to destroy what was previously created
# ex: rails g model Oops - creates
# ex: rails d model Oops - deletes what was created
rails about #gives info about your ruby application including the version, etc.
rails -T #opens up the rails tasks list to give you info on what you can run.
rails db: #most common command, allows you to run create or migrate
#ex: rails db:migrate - runs the migration
#ex: rails db:seed - seeds your DB from what was added in your seed file