In the book 'The Rails Way', Obie Fernandez discusses keeping active-
record validation code within a database and then applying those
validations conditionally based upon certain attributes of the model.

I had a similar requirement recently, before reading the book and
ended up writing my own hand-rolled validator. This was quite painful
and not as powerful as the built in ActiveRecord validations.

Does any one have any info/links to posts etc that would give me a
headstart on how to achieve conditional AR validations with the
validation code stored in a database?


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