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Module: Rails

Relationships & Source Files
Namespace Children
Modules:
API, Command, Configuration, ConsoleMethods, Generators, Info, Initializable, Paths, Rack, Rackup, TestUnit, VERSION
Classes:
AppBuilder, Application, Console, DBConsole, Engine, HealthController, PluginBuilder, Railtie, Server, SourceAnnotationExtractor, TestUnitRailtie, TestUnitReporter
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::ActiveSupport::Benchmarkable, ::ActiveSupport::Autoload
Defined in: actioncable/lib/rails/generators/channel/channel_generator.rb,
actionmailbox/lib/rails/generators/mailbox/mailbox_generator.rb,
actionmailer/lib/rails/generators/mailer/mailer_generator.rb,
activejob/lib/rails/generators/job/job_generator.rb,
railties/lib/rails.rb,
railties/lib/rails/app_loader.rb,
railties/lib/rails/application.rb,
railties/lib/rails/autoloaders.rb,
railties/lib/rails/backtrace_cleaner.rb,
railties/lib/rails/command.rb,
railties/lib/rails/configuration.rb,
railties/lib/rails/deprecator.rb,
railties/lib/rails/dev_caching.rb,
railties/lib/rails/engine.rb,
railties/lib/rails/gem_version.rb,
railties/lib/rails/generators.rb,
railties/lib/rails/health_controller.rb,
railties/lib/rails/info.rb,
railties/lib/rails/initializable.rb,
railties/lib/rails/paths.rb,
railties/lib/rails/rack.rb,
railties/lib/rails/railtie.rb,
railties/lib/rails/source_annotation_extractor.rb,
railties/lib/rails/version.rb,
railties/lib/rails/api/task.rb,
railties/lib/rails/application/bootstrap.rb,
railties/lib/rails/application/configuration.rb,
railties/lib/rails/application/default_middleware_stack.rb,
railties/lib/rails/application/finisher.rb,
railties/lib/rails/application/routes_reloader.rb,
railties/lib/rails/autoloaders/inflector.rb,
railties/lib/rails/command/actions.rb,
railties/lib/rails/command/base.rb,
railties/lib/rails/command/behavior.rb,
railties/lib/rails/command/environment_argument.rb,
railties/lib/rails/command/helpers/editor.rb,
railties/lib/rails/commands/about/about_command.rb,
railties/lib/rails/commands/app/update_command.rb,
railties/lib/rails/commands/application/application_command.rb,
railties/lib/rails/commands/boot/boot_command.rb,
railties/lib/rails/commands/console/console_command.rb,
railties/lib/rails/commands/console/irb_console.rb,
railties/lib/rails/commands/credentials/credentials_command.rb,
railties/lib/rails/commands/db/system/change/change_command.rb,
railties/lib/rails/commands/dbconsole/dbconsole_command.rb,
railties/lib/rails/commands/destroy/destroy_command.rb,
railties/lib/rails/commands/dev/dev_command.rb,
railties/lib/rails/commands/devcontainer/devcontainer_command.rb,
railties/lib/rails/commands/encrypted/encrypted_command.rb,
railties/lib/rails/commands/gem_help/gem_help_command.rb,
railties/lib/rails/commands/generate/generate_command.rb,
railties/lib/rails/commands/help/help_command.rb,
railties/lib/rails/commands/initializers/initializers_command.rb,
railties/lib/rails/commands/middleware/middleware_command.rb,
railties/lib/rails/commands/new/new_command.rb,
railties/lib/rails/commands/notes/notes_command.rb,
railties/lib/rails/commands/plugin/plugin_command.rb,
railties/lib/rails/commands/rake/rake_command.rb,
railties/lib/rails/commands/restart/restart_command.rb,
railties/lib/rails/commands/routes/routes_command.rb,
railties/lib/rails/commands/runner/runner_command.rb,
railties/lib/rails/commands/secret/secret_command.rb,
railties/lib/rails/commands/server/server_command.rb,
railties/lib/rails/commands/test/test_command.rb,
railties/lib/rails/commands/unused_routes/unused_routes_command.rb,
railties/lib/rails/commands/version/version_command.rb,
railties/lib/rails/console/methods.rb,
railties/lib/rails/engine/configuration.rb,
railties/lib/rails/engine/railties.rb,
railties/lib/rails/engine/updater.rb,
railties/lib/rails/generators/actions.rb,
railties/lib/rails/generators/active_model.rb,
railties/lib/rails/generators/app_base.rb,
railties/lib/rails/generators/app_name.rb,
railties/lib/rails/generators/base.rb,
railties/lib/rails/generators/database.rb,
railties/lib/rails/generators/generated_attribute.rb,
railties/lib/rails/generators/migration.rb,
railties/lib/rails/generators/model_helpers.rb,
railties/lib/rails/generators/named_base.rb,
railties/lib/rails/generators/resource_helpers.rb,
railties/lib/rails/generators/test_case.rb,
railties/lib/rails/generators/actions/create_migration.rb,
railties/lib/rails/generators/rails/app/app_generator.rb,
railties/lib/rails/generators/rails/application_record/application_record_generator.rb,
railties/lib/rails/generators/rails/benchmark/benchmark_generator.rb,
railties/lib/rails/generators/rails/controller/controller_generator.rb,
railties/lib/rails/generators/rails/credentials/credentials_generator.rb,
railties/lib/rails/generators/rails/db/system/change/change_generator.rb,
railties/lib/rails/generators/rails/devcontainer/devcontainer_generator.rb,
railties/lib/rails/generators/rails/encrypted_file/encrypted_file_generator.rb,
railties/lib/rails/generators/rails/encryption_key_file/encryption_key_file_generator.rb,
railties/lib/rails/generators/rails/generator/generator_generator.rb,
railties/lib/rails/generators/rails/helper/helper_generator.rb,
railties/lib/rails/generators/rails/integration_test/integration_test_generator.rb,
railties/lib/rails/generators/rails/master_key/master_key_generator.rb,
railties/lib/rails/generators/rails/migration/migration_generator.rb,
railties/lib/rails/generators/rails/model/model_generator.rb,
railties/lib/rails/generators/rails/plugin/plugin_generator.rb,
railties/lib/rails/generators/rails/resource/resource_generator.rb,
railties/lib/rails/generators/rails/resource_route/resource_route_generator.rb,
railties/lib/rails/generators/rails/scaffold/scaffold_generator.rb,
railties/lib/rails/generators/rails/scaffold_controller/scaffold_controller_generator.rb,
railties/lib/rails/generators/rails/system_test/system_test_generator.rb,
railties/lib/rails/generators/rails/task/task_generator.rb,
railties/lib/rails/generators/testing/assertions.rb,
railties/lib/rails/generators/testing/behavior.rb,
railties/lib/rails/generators/testing/setup_and_teardown.rb,
railties/lib/rails/rack/logger.rb,
railties/lib/rails/rackup/server.rb,
railties/lib/rails/railtie/configurable.rb,
railties/lib/rails/railtie/configuration.rb,
railties/lib/rails/test_unit/line_filtering.rb,
railties/lib/rails/test_unit/railtie.rb,
railties/lib/rails/test_unit/reporter.rb,
railties/lib/rails/test_unit/runner.rb,
railties/lib/rails/test_unit/test_parser.rb,
railties/lib/rails/test_unit/test_parser.rb

Overview

Class Attribute Summary

Class Method Summary

::ActiveSupport::Benchmarkable - Extended

benchmark

Allows you to measure the execution time of a block in a template and records the result to the log.

::ActiveSupport::Autoload - Extended

autoload, autoload_at, autoload_under, eager_autoload, eager_load!

Instance Method Summary

Class Attribute Details

.app_class (rw)

[ GitHub ] 

  


# File 'railties/lib/rails.rb', line 44



attr_accessor :app_class, :cache, :logger


  








  

    .application   (rw)
  

  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 45



def application
  @application ||= (app_class.instance if app_class)
end


  








  

    .application=(value)   (rw)
  

  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 43



attr_writer :application


  








  

    .cache   (rw)
  

  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 44



attr_accessor :app_class, :cache, :logger


  








  

    .env   (rw)
  



  

    

Returns the current Rails environment.



Rails.env # => "development"
Rails.env.development? # => true
Rails.env.production? # => false
Rails.env.local? # => true              true for "development" and "test", false for anything else


  



  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 75



def env
  @_env ||= ActiveSupport::EnvironmentInquirer.new(ENV["RAILS_ENV"].presence || ENV["RACK_ENV"].presence || "development")
end


  








  

    .env=(environment)   (rw)
  



  

    

Sets the Rails environment.



Rails.env = "staging" # => "staging"


  



  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 82



def env=(environment)
  @_env = ActiveSupport::EnvironmentInquirer.new(environment)
end


  








  

    .logger   (rw)
  

  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 44



attr_accessor :app_class, :cache, :logger


  







Class Method Details



  

    .autoloaders  
  

  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 126



def autoloaders
  application.autoloaders
end


  








  

    .backtrace_cleaner  
  

  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 56



def backtrace_cleaner
  @backtrace_cleaner ||= Rails::BacktraceCleaner.new
end


  








  

    .configuration  
  



  

    

The Configuration instance used to configure the Rails environment


  



  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 52



def configuration
  application.config
end


  








  

    .error  
  



  

    

Returns the ::ActiveSupport::ErrorReporter of the current Rails project, otherwise it returns nil if there is no project.



Rails.error.handle(IOError) do
  # ...
end
Rails.error.report(error)


  



  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 93



def error
  ActiveSupport.error_reporter
end


  








  

    .gem_version  
  



  

    

Returns the currently loaded version of Rails as a Gem::Version.


  



  [ GitHub ]


  

  


# File 'railties/lib/rails/gem_version.rb', line 5



def self.gem_version
  Gem::Version.new VERSION::STRING
end


  








  

    .groups(*groups)  
  



  

    

Returns all Rails groups for loading based on:


  • 

    The Rails environment;
    

  • 

    The environment variable RAILS_GROUPS;
    

  • 

    The optional envs given as argument and the hash with group dependencies;
    




Rails.groups assets: [:development, :test]
# => [:default, "development", :assets] for Rails.env == "development"
# => [:default, "production"]           for Rails.env == "production"


  



  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 106



def groups(*groups)
  hash = groups.extract_options!
  env = Rails.env
  groups.unshift(:default, env)
  groups.concat ENV["RAILS_GROUPS"].to_s.split(",")
  groups.concat hash.map { |k, v| k if v.map(&:to_s).include?(env) }
  groups.compact!
  groups.uniq!
  groups
end


  








  

    .public_path  
  



  

    

Returns a ::Pathname object of the public folder of the current Rails project, otherwise it returns nil if there is no project:



Rails.public_path
  # => #<Pathname:/Users/someuser/some/path/project/public>


  



  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 122



def public_path
  application && Pathname.new(application.paths["public"].first)
end


  








  

    .root  
  



  

    

Returns a ::Pathname object of the current Rails project, otherwise it returns nil if there is no project:



Rails.root
  # => #<Pathname:/Users/someuser/some/path/project>


  



  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 65



def root
  application && application.config.root
end


  








  

    .version  
  



  

    

Returns the currently loaded version of Rails as a string.


  



  [ GitHub ]


  

  


# File 'railties/lib/rails/version.rb', line 7



def self.version
  VERSION::STRING
end


  







Instance Method Details



  

    #initialize!  
  

  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 49



delegate :initialize!, :initialized?, to: :application


  








  

    #initialized?  ⇒ Boolean 
  



  

    
  





  


  [ GitHub ]


  

  


# File 'railties/lib/rails.rb', line 49



delegate :initialize!, :initialized?, to: :application