search for: _combination_

...validates documentation and it appears that validates_uniqueness_of works on only one field at a time. So I can, for example, validate that "sam" is unique to the record set, and that "smith" is unique to the record set. My problem is that each record includes two fields, the _combination_ of which must be unique to the record set, but each of which may not be unique. So "sam smith", "mary smith" and "sam jones" (stored as fname, lname) all need to pass the validation. Is there an easy way to validate_uniqueness_of a combination of fields within a reco...

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