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.
- A
- C
- F
- I
- M
- P
- R
- S
[R] | abstract | |
[R] | abstract? |
Define a controller as abstract. See ::internal_methods for more details.
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.
Returns
-
Set
- A set of all methods that should be considered actions.
# File actionpack/lib/abstract_controller/base.rb, line 74 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(&:to_s) methods.to_set end end
::action_methods are cached and there is sometimes a need to refresh them. ::clear_action_methods! allows you to do that, so next time you run ::action_methods, they will be recalculated.
Returns the full controller name, underscored, without the ending Controller.
class MyApp::MyPostsController < AbstractController::Base
end
MyApp::MyPostsController.controller_path # => "my_app/my_posts"
Returns
-
String
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)
Refresh the cached ::action_methods when a new action_method is added.
Returns true if the given controller is capable of rendering a path. A
subclass of AbstractController::Base
may return false. An
Email controller for example does not support paths, only full URLs.
Delegates to the class' ::action_methods
Returns the name of the action this controller is processing.
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 this method considers actions that are also available through
other means, for example, implicit render ones.
Parameters
-
action_name
- The name of an action to be tested
Delegates to the class' ::controller_path
Returns the formats that can be processed by the controller.
Tests if a response body is set. Used to determine if the
process_action
callback needs to be terminated in
AbstractController::Callbacks
.
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 AbstractController::ActionNotFound error is raised.
Returns
-
self
# File actionpack/lib/abstract_controller/base.rb, line 125 def process(action, *args) @_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