A module for implementing the Service Object pattern that allows for custom "verbs".

Usage

Including CallMe in your class adds a call class method that instantiates an object of the class using the provided arguments and invokes its call method. For example:

Thing = Struct.new(:value) do
  include CallMe

  def call
    puts value
  end
end

Thing.call(123)
# => "123"

If you would prefer a verb other than call, then use CallMe.with(:your_verb):

Thing = Struct.new(:value) do
  include CallMe.with(:say)

  def say
    puts value
  end
end

Thing.say(123)
# => "123"

with is aliased to [], so you can use CallMe[:verb] instead of CallMe.with(:verb) if you prefer.

One final note: while the examples all use include, you can also use extend.