Methods
Instance Public methods
store(store_attribute, options = {}) Link
# File activerecord/lib/active_record/store.rb, line 104 def store(store_attribute, options = {}) serialize store_attribute, IndifferentCoder.new(store_attribute, options[:coder]) store_accessor(store_attribute, options[:accessors], **options.slice(:prefix, :suffix)) if options.has_key? :accessors end
store_accessor(store_attribute, *keys, prefix: nil, suffix: nil) Link
# File activerecord/lib/active_record/store.rb, line 109 def store_accessor(store_attribute, *keys, prefix: nil, suffix: nil) keys = keys.flatten accessor_prefix = case prefix when String, Symbol "#{prefix}_" when TrueClass "#{store_attribute}_" else "" end accessor_suffix = case suffix when String, Symbol "_#{suffix}" when TrueClass "_#{store_attribute}" else "" end _store_accessors_module.module_eval do keys.each do |key| accessor_key = "#{accessor_prefix}#{key}#{accessor_suffix}" define_method("#{accessor_key}=") do |value| write_store_attribute(store_attribute, key, value) end define_method(accessor_key) do read_store_attribute(store_attribute, key) end define_method("#{accessor_key}_changed?") do return false unless attribute_changed?(store_attribute) prev_store, new_store = changes[store_attribute] prev_store&.dig(key) != new_store&.dig(key) end define_method("#{accessor_key}_change") do return unless attribute_changed?(store_attribute) prev_store, new_store = changes[store_attribute] [prev_store&.dig(key), new_store&.dig(key)] end define_method("#{accessor_key}_was") do return unless attribute_changed?(store_attribute) prev_store, _new_store = changes[store_attribute] prev_store&.dig(key) end define_method("saved_change_to_#{accessor_key}?") do return false unless saved_change_to_attribute?(store_attribute) prev_store, new_store = saved_change_to_attribute(store_attribute) prev_store&.dig(key) != new_store&.dig(key) end define_method("saved_change_to_#{accessor_key}") do return unless saved_change_to_attribute?(store_attribute) prev_store, new_store = saved_change_to_attribute(store_attribute) [prev_store&.dig(key), new_store&.dig(key)] end define_method("#{accessor_key}_before_last_save") do return unless saved_change_to_attribute?(store_attribute) prev_store, _new_store = saved_change_to_attribute(store_attribute) prev_store&.dig(key) end end end # assign new store attribute and create new hash to ensure that each class in the hierarchy # has its own hash of stored attributes. self.local_stored_attributes ||= {} self.local_stored_attributes[store_attribute] ||= [] self.local_stored_attributes[store_attribute] |= keys end