diff options
Diffstat (limited to 'actionpack/lib/abstract_controller/base.rb')
| -rw-r--r-- | actionpack/lib/abstract_controller/base.rb | 83 |
1 files changed, 53 insertions, 30 deletions
diff --git a/actionpack/lib/abstract_controller/base.rb b/actionpack/lib/abstract_controller/base.rb index af5de815bb..c95b9a4097 100644 --- a/actionpack/lib/abstract_controller/base.rb +++ b/actionpack/lib/abstract_controller/base.rb @@ -8,10 +8,11 @@ module AbstractController class Error < StandardError #:nodoc: end - class ActionNotFound < StandardError #:nodoc: + # Raised when a non-existing controller action is triggered. + class ActionNotFound < StandardError end - # <tt>AbstractController::Base</tt> is a low-level API. Nobody should be + # 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. @@ -56,21 +57,11 @@ module AbstractController controller.public_instance_methods(true) end - # The list of hidden actions. Defaults to an empty array. - # This can be modified by other modules or subclasses - # to specify particular actions as hidden. - # - # ==== Returns - # * <tt>Array</tt> - An array of method names that should not be considered actions. - def hidden_actions - [] - end - # 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 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. + # itself. # # ==== Returns # * <tt>Set</tt> - A set of all methods that should be considered actions. @@ -81,25 +72,26 @@ module AbstractController # 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 + public_instance_methods(false)).uniq.map(&:to_s) - # Clear out AS callback method pollution - Set.new(methods.reject { |method| method =~ /_one_time_conditions/ }) + methods.to_set end end # action_methods are cached and there is sometimes need to refresh - # them. clear_action_methods! allows you to do that, so next time + # them. ::clear_action_methods! allows you to do that, so next time # you run action_methods, they will be recalculated def clear_action_methods! @action_methods = nil end # Returns the full controller name, underscored, without the ending Controller. - # For instance, MyApp::MyPostsController would return "my_app/my_posts" for - # controller_path. + # + # class MyApp::MyPostsController < AbstractController::Base + # end + # end + # + # MyApp::MyPostsController.controller_path # => "my_app/my_posts" # # ==== Returns # * <tt>String</tt> @@ -120,14 +112,14 @@ module AbstractController # # 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. + # AbstractController::ActionNotFound error is raised. # # ==== Returns # * <tt>self</tt> def process(action, *args) - @_action_name = action_name = action.to_s + @_action_name = action.to_s - unless action_name = method_for_action(action_name) + unless action_name = _find_action_name(@_action_name) raise ActionNotFound, "The action '#{action}' could not be found for #{self.class.name}" end @@ -136,12 +128,12 @@ module AbstractController process_action(action_name, *args) end - # Delegates to the class' #controller_path + # Delegates to the class' ::controller_path def controller_path self.class.controller_path end - # Delegates to the class' #action_methods + # Delegates to the class' ::action_methods def action_methods self.class.action_methods end @@ -160,7 +152,15 @@ module AbstractController # ==== Returns # * <tt>TrueClass</tt>, <tt>FalseClass</tt> def available_action?(action_name) - method_for_action(action_name).present? + _find_action_name(action_name).present? + end + + # 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. + def self.supports_path? + true end private @@ -204,6 +204,24 @@ module AbstractController end # Takes an action name and returns the name of the method that will + # handle the action. + # + # It checks if the action name is valid and returns false otherwise. + # + # See method_for_action for more information. + # + # ==== Parameters + # * <tt>action_name</tt> - An action name to find a method name for + # + # ==== Returns + # * <tt>string</tt> - The name of the method that handles the action + # * false - No valid method name could be found. + # Raise AbstractController::ActionNotFound. + def _find_action_name(action_name) + _valid_action_name?(action_name) && method_for_action(action_name) + end + + # Takes an action name and returns the name of the method that will # handle the action. In normal cases, this method returns the same # name as it receives. By default, if #method_for_action receives # a name that is not an action, it will look for an #action_missing @@ -218,14 +236,14 @@ module AbstractController # the case. # # If none of these conditions are true, and method_for_action - # returns nil, an ActionNotFound exception will be raised. + # returns nil, an AbstractController::ActionNotFound exception will be raised. # # ==== Parameters # * <tt>action_name</tt> - An action name to find a method name for # # ==== Returns # * <tt>string</tt> - The name of the method that handles the action - # * <tt>nil</tt> - No method name could be found. Raise ActionNotFound. + # * <tt>nil</tt> - No method name could be found. def method_for_action(action_name) if action_method?(action_name) action_name @@ -233,5 +251,10 @@ module AbstractController "_handle_action_missing" end end + + # Checks if the action name is valid and returns false otherwise. + def _valid_action_name?(action_name) + !action_name.to_s.include? File::SEPARATOR + end end end |