async updateItemCost(omitcode = "") {
        for (let irow of await oo.query.select(["Code"]).from("Item").where({Recipe: this.Code}).fetch()) {
            if (!omitcode || omitcode != irow.Code) {
                let icost = await cm.ItemCost.bring(irow.Code);
                if (icost) {
                    icost.SubCost = this.TotalCost;
                    if (!icost.OperativeCostCurrency)
                        icost.OperativeCostCurrency = await cm.Currency.default();
                    let res = await icost.save();
                    if (!res){
                        this.__error_responses__ = icost.getErrorResponses();
                        return res;
                    }
                }
            }
        }
        return true;
    }
}