public int AddRequest(Guide_Tourist gt) { int num = 0; DBservices db = new DBservices(); Guide_Tourist guideTourist = db.GetRequestByTouristEmailAndGuideEmail(gt.TouristEmail, gt.GuideEmail); if (guideTourist.GuideEmail != null) { num = db.updateStatusGuideTourist(gt); } else { num = db.AddRequest(gt); } return(num); }