module ActiveRecord # Active Records will automatically record creation and/or update timestamps of database objects # if fields of the names created_at/created_on or updated_at/updated_on are present. This module is # automatically included, so you don't need to do that manually. # # This behavior can be turned off by setting ActiveRecord::Base.record_timestamps = false. # This behavior by default uses local time, but can use UTC by setting ActiveRecord::Base.default_timezone = :utc module Timestamp def self.append_features(base) # :nodoc: super base.class_eval do alias_method :create_without_timestamps, :create alias_method :create, :create_with_timestamps alias_method :update_without_timestamps, :update alias_method :update, :update_with_timestamps end end 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) write_attribute('updated_on', t) if respond_to?(:updated_on) end create_without_timestamps end def update_with_timestamps #:nodoc: if record_timestamps 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 end end class Base # Records the creation date and possibly time in created_on (date only) or created_at (date and time) and the update date and possibly # time in updated_on and updated_at. This only happens if the object responds to either of these messages, which they will do automatically # if the table has columns of either of these names. This feature is turned on by default. @@record_timestamps = true cattr_accessor :record_timestamps # deprecated: use ActiveRecord::Base.default_timezone instead. @@timestamps_gmt = false def self.timestamps_gmt=( gmt ) #:nodoc: warn "timestamps_gmt= is deprecated. use default_timezone= instead" self.default_timezone = ( gmt ? :utc : :local ) end def self.timestamps_gmt #:nodoc: warn "timestamps_gmt is deprecated. use default_timezone instead" self.default_timezone == :utc end end end