Thoughtbot: The Perils of Uniqueness Validations

url: http://robots.thoughtbot.com/post/55689359336/the-perils-of-uniqueness-validations

How to reenforce your uniqueness validations with indexes in your RDBMS so that uniqueness is truly consistent.

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Thoughtbot: The Perils of Uniqueness Validations by Walter McGinnis is licensed under a Creative Commons Attribution-Share Alike 3.0 New Zealand License