Idiomatic object creation in ruby

Question

In ruby, I often find myself writing the following:

class Foo
  def initialize(bar, baz)
    @bar = bar
    @baz = baz
  end

  << more stuff >>
         


        

Answer 1

You could use Virtus, I don't think it's the idiomatic way to do so but it does all the boiler plate for you.

require 'Virtus'

class Foo
  include 'Virtus'

  attribute :bar, Object 
  attribute :baz, Object

end

Then you can do things like

foo = Foo.new(:bar => "bar") 
foo.bar # => bar

If you don't like to pass an hash to the initializer then add :

def initialize(bar, baz)
  super(:bar => bar, :baz => baz)
end

If you don't think it's DRY enough, you can also do

def initialize(*args)
  super(self.class.attributes.map(&:name).zip(args)])
end