Contents

module TemporalTables
	# Uses the time from the "at" field stored in the record to filter queries
	# made to associations.
	module AssociationExtensions
		def target_scope
			# Kludge: Check +public_methods+ instead of using +responds_to?+ to
			# bypass +delegate_missing_to+ calls, as in +ActiveStorage::Attachment+.
			# Using responds_to? results in an infinite loop stack overflow.
			if @owner.public_methods.include?(:at_value)
				# If this is a history record but no at time was given,
				# assume the record's effective to date
				super.at(@owner.at_value || @owner.eff_to)
			else
				super
			end
		end
	end
end

ActiveRecord::Associations::Association.prepend TemporalTables::AssociationExtensions

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
temporal_tables-0.6.10	lib/temporal_tables/association_extensions.rb