Strip uniques before update (SAILS)

stripuniques

stripUniques: function(id, data, cb){
	this.findOne({id: id}).exec(function findCB(err, result){
		if (err) {
			//bubble error back to callback
			return cb(err);
		} else if (!result) {
			//id passed is invalid. return empty object and deal with this in callback
			return cb(null, {});
		} else {
			if (data) {
				//do this for all uniques in model
				if (data.name && result.name == data.name) {
					delete data.name;
				}
				return cb(null, data);
			} else {
				//data is empty. return empty object
				return cb(null, {});
			}
		}
	});
}