ActiveRecord::Sanitization::ClassMethods

Accepts a hash of SQL conditions and replaces those attributes that correspond to a #composed_of relationship with their expanded aggregate attribute values. Given: class Person < ActiveRecord::Base composed_of :address, class_name: "Address", mapping: [%w(address_street street), %w(address_city city)] end Then: { address: Address.new("813 abc st.", "chicago") } # => { address_street: "813 abc st.