method

configure_dependency_for_has_one

v2.1.0 - Show latest stable - 0 notes - Class: ActiveRecord::Associations::ClassMethods

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configure_dependency_for_has_one(reflection) private

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# File activerecord/lib/active_record/associations.rb, line 1285
        def configure_dependency_for_has_one(reflection)
          if reflection.options.include?(:dependent)
            case reflection.options[:dependent]
              when :destroy
                method_name = "has_one_dependent_destroy_for_#{reflection.name}".to_sym
                define_method(method_name) do
                  association = send("#{reflection.name}")
                  association.destroy unless association.nil?
                end
                before_destroy method_name
              when :delete
                method_name = "has_one_dependent_delete_for_#{reflection.name}".to_sym
                define_method(method_name) do
                  association = send("#{reflection.name}")
                  association.class.delete(association.id) unless association.nil?
                end
                before_destroy method_name
              when :nullify
                method_name = "has_one_dependent_nullify_for_#{reflection.name}".to_sym
                define_method(method_name) do
                  association = send("#{reflection.name}")
                  association.update_attribute("#{reflection.primary_key_name}", nil) unless association.nil?
                end
                before_destroy method_name
              else
                raise ArgumentError, "The :dependent option expects either :destroy, :delete or :nullify (#{reflection.options[:dependent].inspect})"
            end
          end
        end

configure_dependency_for_has_one

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