From 4f3955657736796664aa8d6f6d149ef9b213b058 Mon Sep 17 00:00:00 2001
From: dixpac <dino.onex@gmail.com>
Date: Sat, 13 May 2017 13:56:37 +0200
Subject: Improving docs for callbacks execution order [ci skip]

When define callbacks latest definition on the same callback/method
overwrites previous ones.
---
 actionpack/lib/abstract_controller/callbacks.rb | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'actionpack')

diff --git a/actionpack/lib/abstract_controller/callbacks.rb b/actionpack/lib/abstract_controller/callbacks.rb
index ce4ecf17cc..ba7dec6083 100644
--- a/actionpack/lib/abstract_controller/callbacks.rb
+++ b/actionpack/lib/abstract_controller/callbacks.rb
@@ -1,4 +1,24 @@
 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
 
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