Add Ruby On Rails basic command line cheatsheet

backend/ruby_on_rails.rb

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+# The Rails Command Line
+# For more info see: https://guides.rubyonrails.org/command_line.html
+
+# Attention!!!
+# In Rails 4 some commands need replace `rails` to `rake`
+# For more info see: https://github.com/rails/rails/pull/22288
+#
+# If commands not working, you can run them as:
+# `bin/rails <command> <arg>` or `bundle exec rails <command> <arg>`
+
+
+# Create new project
+rails new project_name
+
+# with the version number of the framework
+rails _4.2.7_ new old_project_name
+
+
+
+# Run server (for development)
+rails server
+rails s # shortcut
+
+# Run sever listen 3200 port on all network interfaces
+rails s -b 0.0.0.0 -p 3200
+
+
+
+# Run console
+rails console
+rails c # shortcut
+
+# Run console in test environment
+rails console test
+
+# Run console in sandbox (all transactions and changes will be canceled)
+rails console --sandbox
+
+
+
+# Create model
+rails generation model Product title:string body:text
+rails g model ProductItem product:references 'price:decimal{8,2}'
+
+# Delete a generated model template
+rails destroy model Product
+rails d model ProductItem
+
+
+
+# Create controller
+# Controller name is better to use in the plural
+rails generate controller Users index show new create edit update destroy
+rails g controller Pages index show
+
+# Create a controller in the namespace
+rails g controller api/v1/users index show create update destroy
+
+# Delete a generated controller template
+rails destroy controller Users
+rails d controller Pages
+
+
+
+# Create migration
+rails g migration AddAwesomeFieldToProduct awesome_field:string
+
+# Delete a generated migration template
+rails d migration AddAwesomeFieldToProduct
+
+
+
+# Create mailer
+rails g mailer UserMailer account_activation password_reset
+
+
+
+# Create channel (ActionCable, websockets)
+rails g channel Room
+
+
+
+# Create database
+rails db:create
+
+# Drop database
+rails db:drop
+
+# Load seeds (default data in database)
+rails db:seed
+
+# Perform migration
+rails db:migrate
+rake db:migrate # in Rails 4
+
+# Rollback migration
+rails db:rollback
+rails db:rollback STEP=3 # rollback 3 last migration
+
+
+
+# View all available routes in the app
+# In the dev environment you can see routes in http://localhost:3000/rails/info/routes
+rails routes
+
+
+
+# View project code metrics
+rails stats
+
+
+
+# Run the script in a Rails environment
+rails runner path/to/script.rb