salix/services/ticket/common/models/ticket-observation.js

module.exports = function(Self) {
   /*  Self.validateAsync('observationTypeFk', validateObservationUniqueness, {
        message: `The observation type can't be repeated`
    });

    async function validateObservationUniqueness(err, done) {
        let observationExists = await Self.findOne({
            where: {
                ticketFk: this.ticketFk,
                observationTypeFk: this.observationTypeFk
            }
        });

        if (observationExists)
            err();

        done();
    } */
};