From 3da701dd3c76abbb9013e71daf26a0eee8dfa744 Mon Sep 17 00:00:00 2001
From: Edouard CHIN <edouard.chin@shopify.com>
Date: Thu, 9 Jun 2016 21:04:58 -0400
Subject: [ci skip] `define_model_callbacks` only exist in active model:

- Also added a note when calling multiple time `define_callbacks`
---
 activesupport/lib/active_support/callbacks.rb | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'activesupport')

diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb
index 904d3f0eb0..1559fe641c 100644
--- a/activesupport/lib/active_support/callbacks.rb
+++ b/activesupport/lib/active_support/callbacks.rb
@@ -736,8 +736,13 @@ module ActiveSupport
       #
       #   would call <tt>Audit#save</tt>.
       #
-      # NOTE: +method_name+ passed to `define_model_callbacks` must not end with
+      # ===== Notes
+      #
+      # +names+ passed to `define_callbacks` must not end with
       # `!`, `?` or `=`.
+      #
+      # Calling `define_callbacks` multiple times with the same +names+ will
+      # overwrite previous callbacks registered with `set_callback`.
       def define_callbacks(*names)
         options = names.extract_options!
 
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