Validation Night ( http://connpass.com/event/9982/ )
Rails Context Validation
Validation Night ( http://connpass.com/event/9982/ )
Seven Useful ActiveModel Validators | Viget
Custom ActiveModel::Validators are an easy way to validate individual attributes on your Rails models. All that's required is a Ruby class that inherits from ActiveModel::EachValidator and implements a validate_each method that takes three arguments: record, attribute, and value. I have written a few lately, so I pinged the rest of the amazingly talented Viget developers for some contributions. He
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