a better polymorphic refactor for http://blog.8thlight.com/wai-lee-chin-feman/2013/08/11/anti-anti-if.html

example.rb

class Employee
  attr_accessor :title, :name

  def initialize(employee_attributes)
    @title = employee_attributes[:title]
    @name = employee_attributes[:name]
  end
end

class Manager < Employee
  def hours
    40
  end
end

class Programmer < Employee
  def hours
    80
  end
end

class Thank
  def generate(employee_attributes)
    employee = EmployeeFactory.new_employee(employee_attributes)
    "Thank you #{employee.name} for your #{employee.hours} hours of hard work!"
  end
end

class EmployeeFactory
  def self.new_employee(employee_attributes)
    employee_attributes.title.constantize.new(employee_attributes)
  end
end

Thanks for the feedback :-)

I think this only works in Rails.

In the blog, I was trying to make observations about OO in general; I just happened to be using Ruby.