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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
# <tt>ActiveRecord::Base.record_timestamps = false</tt>
#
# Timestamps are in the local timezone by default but can use UTC by setting
# <tt>ActiveRecord::Base.default_timezone = :utc</tt>
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)
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
end
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