Ruby Factory Pattern

PizzaFactory.rb

class PizzaFactory
  
  def self.create_pizza(type)
    if type == 'Pepperoni'
      return PepperoniPizza.new
    if type == 'Greek'
      return GreekPizza.new
    end
  end
  
end

class Pizza
  
  def bake
    puts "Baking pizza..."
  end
  
  def package
    puts "Baking pizza..."
  end
end

# Concrete implementations
class PepperoniPizza < Pizza
  
  def bake
    puts "Baking Pepperoni pizza"
  end
  
  def package
    puts "Packaging Pepperoni pizza"
  end
end

class GreekPizza < Pizza
  
  def bake
    puts "Baking Greek pizza"
  end
  
  def package
    puts "Baking Greek pizza"
  end
end