diff options
Diffstat (limited to 'actionpack/lib/abstract_controller/base.rb')
-rw-r--r-- | actionpack/lib/abstract_controller/base.rb | 50 |
1 files changed, 41 insertions, 9 deletions
diff --git a/actionpack/lib/abstract_controller/base.rb b/actionpack/lib/abstract_controller/base.rb index 56dc9ab7a1..51c661f735 100644 --- a/actionpack/lib/abstract_controller/base.rb +++ b/actionpack/lib/abstract_controller/base.rb @@ -8,7 +8,8 @@ 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 @@ -35,7 +36,7 @@ module AbstractController end def inherited(klass) # :nodoc: - # define the abstract ivar on subclasses so that we don't get + # Define the abstract ivar on subclasses so that we don't get # uninitialized ivar warnings unless klass.instance_variable_defined?(:@abstract) klass.instance_variable_set(:@abstract, false) @@ -81,7 +82,7 @@ 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 } - + public_instance_methods(false)).uniq.map(&:to_s) - # And always exclude explicitly hidden actions hidden_actions.to_a @@ -120,14 +121,14 @@ 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 @@ -160,7 +161,15 @@ 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 +213,24 @@ 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 +245,14 @@ 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 +260,10 @@ 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 |