public SqlCategoryRepo(TravelListContext context)
 {
     _context = context;
 }
 public SqlTravelRouteRepo(TravelListContext context)
 {
     _context = context;
 }
 public SqlTravelListItemRepo(TravelListContext context)
 {
     _context = context;
 }
 public SqlTravelPointOfInterestRepo(TravelListContext context)
 {
     _context = context;
 }