/usr/lib/ruby/vendor_ruby/active_model/validations/callbacks.rb is in ruby-activemodel-3.2 3.2.16-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | require 'active_support/callbacks'
module ActiveModel
module Validations
module Callbacks
# == Active Model Validation callbacks
#
# Provides an interface for any class to have <tt>before_validation</tt> and
# <tt>after_validation</tt> callbacks.
#
# First, extend ActiveModel::Callbacks from the class you are creating:
#
# class MyModel
# include ActiveModel::Validations::Callbacks
#
# before_validation :do_stuff_before_validation
# after_validation :do_stuff_after_validation
# end
#
# Like other before_* callbacks if <tt>before_validation</tt> returns false
# then <tt>valid?</tt> will not be called.
extend ActiveSupport::Concern
included do
include ActiveSupport::Callbacks
define_callbacks :validation, :terminator => "result == false", :scope => [:kind, :name]
end
module ClassMethods
def before_validation(*args, &block)
options = args.last
if options.is_a?(Hash) && options[:on]
options[:if] = Array.wrap(options[:if])
options[:if].unshift("self.validation_context == :#{options[:on]}")
end
set_callback(:validation, :before, *args, &block)
end
def after_validation(*args, &block)
options = args.extract_options!
options[:prepend] = true
options[:if] = Array.wrap(options[:if])
options[:if] << "!halted"
options[:if].unshift("self.validation_context == :#{options[:on]}") if options[:on]
set_callback(:validation, :after, *(args << options), &block)
end
end
protected
# Overwrite run validations to include callbacks.
def run_validations!
run_callbacks(:validation) { super }
end
end
end
end
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