# frozen_string_literal: true module ActiveRecord module AttributeMethods module Read extend ActiveSupport::Concern module ClassMethods # :nodoc: private def define_method_attribute(name) ActiveModel::AttributeMethods::AttrNames.define_attribute_accessor_method( generated_attribute_methods, name ) do |temp_method_name, attr_name_expr| generated_attribute_methods.module_eval <<-RUBY, __FILE__, __LINE__ + 1 def #{temp_method_name} name = #{attr_name_expr} _read_attribute(name) { |n| missing_attribute(n, caller) } end RUBY end end end # Returns the value of the attribute identified by attr_name after # it has been typecast (for example, "2004-12-12" in a date column is cast # to a date object, like Date.new(2004, 12, 12)). def read_attribute(attr_name, &block) name = attr_name.to_s name = self.class.attribute_aliases[name] || name name = @primary_key if name == "id" && @primary_key _read_attribute(name, &block) end # This method exists to avoid the expensive primary_key check internally, without # breaking compatibility with the read_attribute API def _read_attribute(attr_name, &block) # :nodoc sync_with_transaction_state if @transaction_state&.finalized? @attributes.fetch_value(attr_name.to_s, &block) end alias :attribute :_read_attribute private :attribute end end end