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-rw-r--r--activemodel/lib/active_model/callbacks.rb9
1 files changed, 7 insertions, 2 deletions
diff --git a/activemodel/lib/active_model/callbacks.rb b/activemodel/lib/active_model/callbacks.rb
index eac2761433..8fa9680cb1 100644
--- a/activemodel/lib/active_model/callbacks.rb
+++ b/activemodel/lib/active_model/callbacks.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
require "active_support/core_ext/array/extract_options"
module ActiveModel
@@ -56,6 +58,9 @@ module ActiveModel
#
# Would only create the +after_create+ and +before_create+ callback methods in
# your class.
+ #
+ # NOTE: Calling the same callback multiple times will overwrite previous callback definitions.
+ #
module Callbacks
def self.extended(base) #:nodoc:
base.class_eval do
@@ -98,8 +103,8 @@ module ActiveModel
# end
# end
#
- # NOTE: +method_name+ passed to `define_model_callbacks` must not end with
- # `!`, `?` or `=`.
+ # NOTE: +method_name+ passed to define_model_callbacks must not end with
+ # <tt>!</tt>, <tt>?</tt> or <tt>=</tt>.
def define_model_callbacks(*callbacks)
options = callbacks.extract_options!
options = {