salix/services/item/common/models/item-niche.js

module.exports = Self => {
/*     Self.validateAsync('warehouseFk', validateWarehouseUniqueness, {
        message: `The warehouse can't be repeated`
    });

    async function validateWarehouseUniqueness(err, done) {
        let where = {
            itemFk: this.itemFk,
            warehouseFk: this.warehouseFk
        };

        if (this.id != null)
            where.id = {neq: this.id};

        let warehouseExists = await Self.findOne({where: where});
        console.log(warehouseExists);

        if (warehouseExists)
            err();

        done();
    } */
};