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 can use GMT by setting ActiveRecord::Base.timestamps_gmt = true
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:
t = timestamps_gmt ? Time.now.gmtime : Time.now
write_attribute("created_at", t) if record_timestamps && respond_to?(:created_at) && created_at.nil?
write_attribute("created_on", t) if record_timestamps && respond_to?(:created_on) && created_on.nil?
write_attribute("updated_at", t) if record_timestamps && respond_to?(:updated_at)
write_attribute("updated_on", t) if record_timestamps && respond_to?(:updated_on)
create_without_timestamps
end
def update_with_timestamps #:nodoc:
t = timestamps_gmt ? Time.now.gmtime : Time.now
write_attribute("updated_at", t) if record_timestamps && respond_to?(:updated_at)
write_attribute("updated_on", t) if record_timestamps && respond_to?(:updated_on)
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
@@timestamps_gmt = false
cattr_accessor :timestamps_gmt
end
end