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-rw-r--r--activemodel/lib/active_model/callbacks.rb25
1 files changed, 16 insertions, 9 deletions
diff --git a/activemodel/lib/active_model/callbacks.rb b/activemodel/lib/active_model/callbacks.rb
index eac2761433..fde3381df2 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 = {
@@ -122,26 +127,28 @@ module ActiveModel
private
def _define_before_model_callback(klass, callback)
- klass.define_singleton_method("before_#{callback}") do |*args, &block|
- set_callback(:"#{callback}", :before, *args, &block)
+ klass.define_singleton_method("before_#{callback}") do |*args, **options, &block|
+ options.assert_valid_keys(:if, :unless, :prepend)
+ set_callback(:"#{callback}", :before, *args, options, &block)
end
end
def _define_around_model_callback(klass, callback)
- klass.define_singleton_method("around_#{callback}") do |*args, &block|
- set_callback(:"#{callback}", :around, *args, &block)
+ klass.define_singleton_method("around_#{callback}") do |*args, **options, &block|
+ options.assert_valid_keys(:if, :unless, :prepend)
+ set_callback(:"#{callback}", :around, *args, options, &block)
end
end
def _define_after_model_callback(klass, callback)
- klass.define_singleton_method("after_#{callback}") do |*args, &block|
- options = args.extract_options!
+ klass.define_singleton_method("after_#{callback}") do |*args, **options, &block|
+ options.assert_valid_keys(:if, :unless, :prepend)
options[:prepend] = true
conditional = ActiveSupport::Callbacks::Conditionals::Value.new { |v|
v != false
}
options[:if] = Array(options[:if]) << conditional
- set_callback(:"#{callback}", :after, *(args << options), &block)
+ set_callback(:"#{callback}", :after, *args, options, &block)
end
end
end