Really Essential Rails Commands

essential_rails_commands.md

• Rails new with specific database

  • rails new myapp --database=postgresql
  • rails new myapp --database=mysql
  • rails new myapp --database=sqlite3

• API-only application

  • rails new myapp --api

• Minimal application without default gems

  • rails new myapp --minimal

• Rails 7+ with specific frontend configurations

  • rails new myapp --css tailwind
  • rails new myapp --css bootstrap
  • rails new myapp --css bulma
  • rails new myapp --javascript esbuild
  • rails new myapp --javascript webpack
  • rails new myapp --javascript importmap

• Skip specific components

  • rails new myapp --skip-test
  • rails new myapp --skip-system-test
  • rails new myapp --skip-active-storage
  • rails new myapp --skip-action-mailbox
  • rails new myapp --skip-action-text

• Create database

  • rails db:create

• Run all pending migrations

  • rails db:migrate

• Rollback last migration

  • rails db:rollback STEP=1

• Rollback Version

  • rails db:migrate:down VERSION=2022070100

• Reset database (drop, create, migrate)

  • rails db:reset

• Load seed data

  • rails db:seed

• Drop database

  • rails db:drop

• Advanced Database Commands

  • rails db:migrate:status # Check migration status
  • rails db:version # Show current schema version
  • rails db:schema:load # Load schema.rb
  • rails db:structure:load # Load structure.sql
  • rails db:setup # Create, load schema, and seed
  • rails db:prepare # Prepare test database
  • rails db:environment:set RAILS_ENV=production # Set environment

• Database Maintenance

  • rails db:schema:cache:clear # Clear schema cache
  • rails db:schema:cache:dump # Create schema cache
  • rails db:migrate:down VERSION=20230101000000 # Revert specific migration
  • rails db:migrate:up VERSION=20230101000000 # Run specific migration

• Generate model with attributes

  • rails generate model User name:string email:string:uniq age:integer

• Generate model with references

  • rails generate model Comment content:text user:references post:references

• Generate model with validations

  • rails generate model Product name:string{30} price:decimal{10,2}

• Advanced Model Generation

  • rails generate model User admin:boolean default:false
  • rails generate model Article slug:string:uniq title:string{100} body:text published_at:datetime
  • rails generate model Profile user:belongs_to bio:text social_links:json
  • rails generate model Category name:string position:integer:index

• Generate controller with actions

  • rails generate controller Users index show create update destroy

• Generate API controller

  • rails generate controller api/v1/Users index show --skip-template-engine

• Generate controller with specific namespace

  • rails generate controller Admin::Dashboard index

• Additional Controller Options

  • rails generate controller Posts --skip-routes
  • rails generate controller Comments --skip-helper
  • rails generate controller Admin::Products --skip-assets
  • rails generate controller Api::V2::Users --skip-template-engine --api

• Generate mailer

  • rails generate mailer UserMailer welcome_email password_reset

• Generate job

  • rails generate job process_payment
  • rails generate job send_notifications --queue urgent

• Generate channel

  • rails generate channel room speak

• Generate serializer

  • rails generate serializer user name email role

• Generate stimulus controller

  • rails generate stimulus form_validation

• Run all tests

  • rails test

• Run specific tests

  • rails test test/models/user_test.rb

• Performance Tests

  • rails generate performance_test browsing
  • rails test:performance # Run performance tests

• Parallel Testing

  • rails test:parallel # Run tests in parallel
  • rails test:prepare # Prepare parallel test database

• Server Commands

  • rails server -p 4000 # Run on specific port
  • rails server -b 0.0.0.0 # Bind to all interfaces
  • rails server -e production # Run in specific environment
  • rails server -d # Run as daemon

• Console Variations

  • rails console --sandbox # Run console in sandbox mode
  • rails console -e production # Production console
  • rails console test # Test environment console

• Debugging and Information

  • rails stats # Code statistics
  • rails notes # Show TODO/FIXME/OPTIMIZE comments
  • rails middleware # Show middleware stack
  • rails runner 'puts User.count' # Run Ruby code

• Routes Information

  • rails routes -g users # Show routes matching pattern
  • rails routes -c Users # Show routes for controller
  • rails routes --expanded # Display routes in expanded format

• Asset Pipeline Commands

  • rails assets:precompile # Compile assets
  • rails assets:clean # Remove old compiled assets
  • rails assets:clobber # Remove compiled assets
  • rails assets:environment # Load asset environment
  • rails assets:precompile:all # Compile all assets

• Webpacker Specific (if using Webpacker)

  • rails webpacker:install # Install Webpacker
  • rails webpacker:compile # Compile JavaScript packs
  • rails webpacker:clean # Clean old compiled packs
  • rails webpacker:clobber # Remove compiled packs

• Production Setup

  • rails credentials:edit --environment production
  • rails db:migrate RAILS_ENV=production
  • rails assets:precompile RAILS_ENV=production

• Secret Management

  • rails secret # Generate secret key
  • rails credentials:show # Show credentials
  • rails encrypted:edit config/master.key # Edit master key

• Cache Management

  • rails dev:cache # Toggle development caching
  • rails tmp:cache:clear # Clear tmp cache
  • rails tmp:clear # Clear all tmp files

• Hotwire/Turbo Installation

  • rails turbo:install
  • rails turbo:install:redis

• Stimulus Installation

  • rails stimulus:install

• Import Map Commands

  • bin/importmap pin @hotwired/turbo-rails
  • bin/importmap pin @hotwired/stimulus
  • bin/importmap pin lodash --download
  • bin/importmap json

• CSS Processing

  • rails css:install:tailwind
  • rails css:install:bootstrap
  • rails css:install:postcss
  • rails css:install:sass

• Check routes

  • rails routes | grep users