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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 <tt>ActiveRecord::Base.record_timestamps = false</tt>.
# This behavior by default uses local time, but can use UTC by setting <tt>ActiveRecord::Base.default_timezone = :utc</tt>
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
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