instance method `attribute_method_suffix`

Ruby on Rails 4.0.13

Since v3.0.20

Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

attribute_method_suffix(*suffixes)

Declares a method available for all attributes with the given suffix. Uses method_missing and respond_to? to rewrite the method.

#{attr}#{suffix}(*args, &block)

attribute#{suffix}(#{attr}, *args, &block)

An attribute#{suffix} instance method must exist and accept at least the attr argument.

class Person
  include ActiveModel::AttributeMethods

  attr_accessor :name
  attribute_method_suffix '_short?'
  define_attribute_methods :name

  private

  def attribute_short?(attr)
    send(attr).length < 5
  end
end

person = Person.new
person.name = 'Bob'
person.name          # => "Bob"
person.name_short?   # => true

Parameters

suffixes rest

Source

# File activemodel/lib/active_model/attribute_methods.rb, line 148
      def attribute_method_suffix(*suffixes)
        self.attribute_method_matchers += suffixes.map! { |suffix| AttributeMethodMatcher.new suffix: suffix }
        undefine_attribute_methods
      end

Defined in activemodel/lib/active_model/attribute_methods.rb line 148 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveModel::AttributeMethods::ClassMethods

Signature

Parameters