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-rw-r--r--actionpack/lib/abstract_controller/callbacks.rb20
1 files changed, 20 insertions, 0 deletions
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