public static VesselEngineViewModel ToViewModel(this VesselEngine entity) { if (entity == null) { return(null); } VesselEngineViewModel model = new VesselEngineViewModel { Id = entity.Id, VesselId = entity.VesselId, SystemModification = entity.SystemModification, EngineNumber = entity.EngineNumber, Power = entity.Power, Type = entity.Type }; return(model); }