![]() bin/rails db:version is useful when troubleshooting, telling you the current version of the database. The most common tasks of the db: bin/rails namespace are migrate and create, and it will pay off to try out all of the migration bin/rails tasks ( up, down, redo, reset). If you want to clear public/assets completely, you can use bin/rails assets:clobber. The assets:clean task allows for rolling deploys that may still be linking to an old asset while the new assets are being built. You can precompile the assets in app/assets using bin/rails assets:precompile, and remove older compiled assets using bin/rails assets:clean. Middleware: Rack::Sendfile, ActionDispatch::Static, ActionDispatch::Executor, ActiveSupport::Cache::Strategy::LocalCache::Middleware, Rack::Runtime, Rack::MethodOverride, ActionDispatch::RequestId, ActionDispatch::RemoteIp, Sprockets::Rails::QuietAssets, Rails::Rack::Logger, ActionDispatch::ShowExceptions, WebConsole::Middleware, ActionDispatch::DebugExceptions, ActionDispatch::Reloader, ActionDispatch::Callbacks, ActiveRecord::Migration::CheckPending, ActionDispatch::Cookies, ActionDispatch::Session::CookieStore, ActionDispatch::Flash, Rack::Head, Rack::ConditionalGet, Rack::ETagĪpplication root /home/foobar/commandsapp ĭb:structure:load Recreates the databases. ĭb:structure:dump Dumps the database structure. ĭb:migrate:status Display status of migrationsĭb:schema:cache:clear Clears a db/schema_cache.yml fileĭb:schema:cache:dump Creates a db/schema_cache.yml fileĭb:schema:dump Creates a db/schema.rb file. ĭb:fixtures:load Loads fixtures into the. In addition to those commands, there are:Īssets:clean Remove old compiled assetsĪssets:environment Load asset compile environmentĪssets:precompile Compile all the assets. Server Start the Rails server (short-cut alias: "s")Īll commands can be run with -h (or -help) for more information. Generate Generate new code (short-cut alias: "g")Ĭonsole Start the Rails console (short-cut alias: "c") We'll talk more about bin/rails in-depth in a little while. Which database? The SQLite3 database that Rails will create for you when we run the bin/rails db:migrate command. The migration requires that we migrate, that is, run some Ruby code (living in that 20130717151933_create_high_scores.rb) to modify the schema of our database. The generator checks that there exist the directories for models, controllers, helpers, layouts, functional and unit tests, stylesheets, creates the views, controller, model and database migration for HighScore (creating the high_scores table and fields), takes care of the route for the resource, and new tests for everything. ![]() Identical app/assets/stylesheets/scaffolds.scss $ bin/rails generate scaffold HighScore game:string score:integerĬreate db/migrate/20130717151933_create_high_scores.rbĬreate app/controllers/high_scores_controller.rbĬreate app/views/high_scores/Ĭreate app/views/high_scores/Ĭreate app/views/high_scores/Ĭreate app/views/high_scores/Ĭreate app/views/high_scores/_Ĭreate test/controllers/high_scores_controller_test.rbĬreate app/views/high_scores/Ĭreate app/views/high_scores/Ĭreate app/assets/javascripts/high_ffeeĬreate app/assets/stylesheets/high_scores.scss ![]() Start Here Getting Started with Rails Models Active Record Basics Active Record Migrations Active Record Validations Active Record Callbacks Active Record Associations Active Record Query Interface Views Layouts and Rendering in Rails Action View Form Helpers Controllers Action Controller Overview Rails Routing from the Outside In Digging Deeper Active Support Core Extensions Rails Internationalization API Action Mailer Basics Active Job Basics Testing Rails Applications Securing Rails Applications Debugging Rails Applications Configuring Rails Applications The Rails Command Line Asset Pipeline Working with JavaScript in Rails Autoloading and Reloading Constants Caching with Rails: An Overview Using Rails for API-only Applications Action Cable Overview Extending Rails Rails on Rack Creating and Customizing Rails Generators Contributing to Ruby on Rails Contributing to Ruby on Rails API Documentation Guidelines Ruby on Rails Guides Guidelines Maintenance Policy Maintenance Policy Release Notes Upgrading Ruby on Rails Ruby on Rails 5.1 Release Notes Ruby on Rails 5.0 Release Notes Ruby on Rails 4.2 Release Notes Ruby on Rails 4.1 Release Notes Ruby on Rails 4.0 Release Notes Ruby on Rails 3.2 Release Notes Ruby on Rails 3.1 Release Notes Ruby on Rails 3.0 Release Notes Ruby on Rails 2.3 Release Notes Ruby on Rails 2.2 Release Notes ![]()
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