Module: ActionHandler

Defined in:
lib/action_handler/installer.rb,
lib/action_handler.rb,
lib/action_handler/args.rb,
lib/action_handler/call.rb,
lib/action_handler/equip.rb,
lib/action_handler/config.rb,
lib/action_handler/version.rb,
lib/action_handler/args_maker.rb,
lib/action_handler/controller.rb,
lib/action_handler/args/params.rb,
lib/action_handler/args/default.rb,
lib/action_handler/response_evaluator.rb

Overview

It is better if there is a way to return streaming response. (‘self.response_body = ` or `response.stream.write`?)

Defined Under Namespace

Modules: Args, Controller, ControllerExtension, Equip, HandlerExtension Classes: ActionArgumentError, ArgsMaker, Call, Config, Installer, ResponseEvaluator

Constant Summary collapse

CONFIG_VAR_NAME = 
:@_action_handler_config
VERSION = 
'0.2.0'

Class Method Summary collapse

Class Method Details

.autoload_handlers_from_controller_file ⇒ Object

Enable to autoload handlers defined in a controller file. Rails autoloading works only if the constant is defined in a file matching its name. So if ‘FooHandler` is defined in `foo_controller.rb`, it cannot be autoloaded. (guides.rubyonrails.org/autoloading_and_reloading_constants.html)

So this hooks const_missing and load the corresponding controller. If the controller exists, its handler will be loaded as well.

Currently this supports only the handlers defined in the top level scope.



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# File 'lib/action_handler.rb', line 19

module_function def autoload_handlers_from_controller_file
  unless defined? Rails
    raise 'Rails is not defined. This method is supposed to use in Rails environment.'
  end

  return if @hook_registered

  @hook_registered = true

  # Perhaps this warning is a RuboCop's bug.
  # rubocop:disable Lint/NestedMethodDefinition
  def Object.const_missing(name)
    # rubocop:enable Lint/NestedMethodDefinition

    return super unless name =~ /\A[a-zA-Z0-9_]+Handler\z/
    return super if name == :ActionHandler

    # Try to autoload the corresponding controller.
    prefix = name.to_s.sub(/Handler\z/, '')
    begin
      const_get("::#{prefix}Controller")
    rescue NameError
      super
    end

    # Return the handler if loaded.
    return const_get(name) if Object.const_defined?(name)

    # Otherwise raise the NameError.
    super
  end
end