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Contents
# encoding: utf-8
module Mongoid
# This module handles unit of work functionality with regards to the identity
# map.
module UnitOfWork
# We can process a unit of work in Mongoid and have the identity map
# automatically clear itself out after the work is complete.
#
# @example Process a unit of work.
# Mongoid.unit_of_work do
# Person.create(title: "Sir")
# end
#
# @example Process with identity map disabled on the current thread.
# Mongoid.unit_of_work(disable: :current) do
# Person.create(title: "Sir")
# end
#
# @example Process with identity map disabled on all threads.
# Mongoid.unit_of_work(disable: :all) do
# Person.create(title: "Sir")
# end
#
# @param [ Hash ] options The disabling options.
#
# @option [ Symbol ] :disable Either :all or :current to indicate whether
# to temporarily disable the identity map on the current thread or all
# threads.
#
# @return [ Object ] The result of the block.
#
# @since 2.1.0
def unit_of_work(options = {})
disable = options[:disable]
begin
Threaded.disable_identity_map(disable) if disable
yield if block_given?
ensure
if disable
Threaded.enable_identity_map(disable)
else
IdentityMap.clear
end
end
end
# Are we currently using the identity map?
#
# @example Is the identity map currently enabled?
# Mongoid.using_identity_map?
#
# @return [ true, false ] If the identity map is in use.
#
# @since 3.0.0
def using_identity_map?
Mongoid.identity_map_enabled? && Threaded.identity_map_enabled?
end
end
end
Version data entries
36 entries across 36 versions & 5 rubygems