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-rw-r--r--actionpack/lib/abstract_controller/callbacks.rb28
1 files changed, 25 insertions, 3 deletions
diff --git a/actionpack/lib/abstract_controller/callbacks.rb b/actionpack/lib/abstract_controller/callbacks.rb
index ce4ecf17cc..146d17cf40 100644
--- a/actionpack/lib/abstract_controller/callbacks.rb
+++ b/actionpack/lib/abstract_controller/callbacks.rb
@@ -1,4 +1,26 @@
+# frozen_string_literal: true
+
module AbstractController
+ # = Abstract Controller Callbacks
+ #
+ # Abstract Controller provides hooks during the life cycle of a controller action.
+ # Callbacks allow you to trigger logic during this cycle. Available callbacks are:
+ #
+ # * <tt>after_action</tt>
+ # * <tt>append_after_action</tt>
+ # * <tt>append_around_action</tt>
+ # * <tt>append_before_action</tt>
+ # * <tt>around_action</tt>
+ # * <tt>before_action</tt>
+ # * <tt>prepend_after_action</tt>
+ # * <tt>prepend_around_action</tt>
+ # * <tt>prepend_before_action</tt>
+ # * <tt>skip_after_action</tt>
+ # * <tt>skip_around_action</tt>
+ # * <tt>skip_before_action</tt>
+ #
+ # NOTE: Calling the same callback multiple times will overwrite previous callback definitions.
+ #
module Callbacks
extend ActiveSupport::Concern
@@ -9,12 +31,12 @@ module AbstractController
included do
define_callbacks :process_action,
- terminator: ->(controller, result_lambda) { result_lambda.call if result_lambda.is_a?(Proc); controller.performed? },
+ terminator: ->(controller, result_lambda) { result_lambda.call; controller.performed? },
skip_after_callbacks_if_terminated: true
end
- # Override AbstractController::Base's process_action to run the
- # process_action callbacks around the normal behavior.
+ # Override <tt>AbstractController::Base#process_action</tt> to run the
+ # <tt>process_action</tt> callbacks around the normal behavior.
def process_action(*args)
run_callbacks(:process_action) do
super