# class AbstractController::Base

`AbstractController::Base` is a low-level API. Nobody should be using it directly, and subclasses (like ActionController::Base) are expected to provide their own `render` method, since rendering means different things depending on the context.

### Attributes

abstract[R]
abstract?[R]

### Public Instance Methods

abstract!() click to toggle source

Define a controller as abstract. See #internal_methods for more details.

    # File lib/abstract_controller/base.rb, line 29
    def abstract!
      @abstract = true
    end

action_methods() click to toggle source

A list of method names that should be considered actions. This includes all public instance methods on a controller, less any internal methods (see internal_methods), adding back in any methods that are internal, but still exist on the class itself. Finally, hidden_actions are removed.

#### Returns¶ ↑

- `array` - A list of all methods that should be considered actions.

    # File lib/abstract_controller/base.rb, line 63
    def action_methods
      @action_methods ||= begin
        # All public instance methods of this class, including ancestors
        methods = (public_instance_methods(true) -
          # Except for public instance methods of Base and its ancestors
          internal_methods +
          # Be sure to include shadowed public instance methods of this class
          public_instance_methods(false)).uniq.map { |x| x.to_s } -
          # And always exclude explicitly hidden actions
          hidden_actions.to_a

        # Clear out AS callback method pollution
        methods.reject { |method| method =~ /_one_time_conditions/ }
      end
    end

available_action?(action_name) click to toggle source

Returns true if a method for the action is available and can be dispatched, false otherwise.

Notice that `action_methods.include?("foo")` may return false and `available_action?("foo")` returns true because available action consider actions that are also available through other means, for example, implicit render ones.

    # File lib/abstract_controller/base.rb, line 140
    def available_action?(action_name)
      _find_action_name(action_name).present?
    end

clear_action_methods!() click to toggle source

#action_methods are cached and there is sometimes need to refresh them. clear_action_methods! allows you to do that, so next time you run #action_methods, they will be recalculated

    # File lib/abstract_controller/base.rb, line 82
    def clear_action_methods!
      @action_methods = nil
    end

controller_path() click to toggle source

Returns the full controller name, underscored, without the ending Controller. For instance, MyApp::MyPostsController would return “my_app/my_posts” for controller_name.

#### Returns¶ ↑

- `string`

    # File lib/abstract_controller/base.rb, line 92
    def controller_path
      @controller_path ||= name.sub(/Controller$/, '').underscore unless anonymous?
    end

hidden_actions() click to toggle source

The list of hidden actions to an empty array. Defaults to an empty array. This can be modified by other modules or subclasses to specify particular actions as hidden.

#### Returns¶ ↑

- `array` - An array of method names that should not be considered actions.

    # File lib/abstract_controller/base.rb, line 51
    def hidden_actions
      []
    end

internal_methods() click to toggle source

A list of all internal methods for a controller. This finds the first abstract superclass of a controller, and gets a list of all public instance methods on that abstract class. Public instance methods of a controller would normally be considered action methods, so methods declared on abstract classes are being removed. (ActionController::Metal and ActionController::Base are defined as abstract)

    # File lib/abstract_controller/base.rb, line 39
    def internal_methods
      controller = self
      controller = controller.superclass until controller.abstract?
      controller.public_instance_methods(true)
    end

method_added(name) click to toggle source
Calls superclass method

    # File lib/abstract_controller/base.rb, line 96
    def method_added(name)
      super
      clear_action_methods!
    end

process(action, *args) click to toggle source

Calls the action going through the entire action dispatch stack.

The actual method that is called is determined by calling method_for_action. If no method can handle the action, then an ActionNotFound error is raised.

#### Returns¶ ↑

- `self`

    # File lib/abstract_controller/base.rb, line 112
    def process(action, *args)
      @_action_name = action_name = action.to_s

      unless action_name = _find_action_name(action_name)
        raise ActionNotFound, "The action '#{action}' could not be found for #{self.class.name}"
      end

      @_response_body = nil

      process_action(action_name, *args)
    end