From: Brian Candler <b.candler@...>
Date: 2011-02-28T06:55:07+09:00
Subject: Re: Ensuring uniqueness of an object at creation time

Abinoam Jr. wrote in post #984295:
> In my specific piece of software I just have to make all the class a
> "find_or_create" method, even if it doesn't have any uniqueness
> constraints. This is because my parser is "agnostic", so I don't want
> it to decide where to use "new" or "find_or_create". It has just to
> use "find_or_create" in every object it tries to create.

One option:

class Object
  def self.find_or_create(*args,&blk)
    new(*args,&blk)
  end
end

Then you override it in those classes where you need to.

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