module ActiveRecord # Active Record automatically timestamps create and update operations if the table has fields # named created_at/created_on or updated_at/updated_on. # # Timestamping can be turned off by setting # ActiveRecord::Base.record_timestamps = false # # Timestamps are in the local timezone by default but you can use UTC by setting # ActiveRecord::Base.default_timezone = :utc module Timestamp def self.included(base) #:nodoc: base.alias_method_chain :create, :timestamps base.alias_method_chain :update, :timestamps base.class_inheritable_accessor :record_timestamps, :instance_writer => false base.record_timestamps = true end private def create_with_timestamps #:nodoc: if record_timestamps t = self.class.default_timezone == :utc ? Time.now.utc : Time.now write_attribute('created_at', t) if respond_to?(:created_at) && created_at.nil? write_attribute('created_on', t) if respond_to?(:created_on) && created_on.nil? write_attribute('updated_at', t) if respond_to?(:updated_at) && updated_at.nil? write_attribute('updated_on', t) if respond_to?(:updated_on) && updated_on.nil? end create_without_timestamps end def update_with_timestamps(*args) #:nodoc: if record_timestamps && (!partial_updates? || changed?) t = self.class.default_timezone == :utc ? Time.now.utc : Time.now write_attribute('updated_at', t) if respond_to?(:updated_at) write_attribute('updated_on', t) if respond_to?(:updated_on) end update_without_timestamps(*args) end end end