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Contents
# encoding: utf-8
module Dynamoid #:nodoc:
# The HasOne association.
module Associations
class HasOne
include Association
include SingleAssociation
private
# Find the target association, always a :belongs_to association. Uses either options[:inverse_of] or the source class name
# and default parsing to return the most likely name for the target association.
#
# @since 0.2.0
def target_association
key_name = options[:inverse_of] || source.class.to_s.singularize.underscore.to_sym
guess = target_class.associations[key_name]
return nil if guess.nil? || guess[:type] != :belongs_to
key_name
end
# Associate a source object to this association.
#
# @since 0.2.0
def associate_target(object)
object.update_attribute(target_attribute, Set[source.id])
end
# Disassociate a source object from this association.
#
# @since 0.2.0
def disassociate_target(object)
source.update_attribute(source_attribute, nil)
end
end
end
end
Version data entries
22 entries across 22 versions & 4 rubygems