silly unique name

gistfile1.rb

  # TODO: The next two methods can be extracted to 
  # a more general form: (write tests too)
  def self.name_is_taken(name)
    return true if self.find_by_name(name)
    return false
  end
  def self.gen_unique_name(name)  
    while self.name_is_taken(name)
      number = name[/\d+$/]
      if number
        name = name.gsub(number,"#{number.to_i +1}")
      else
        name = "#{name} (2)"
      end
    end
    return name
  end