[HttpPost] // Create SpaceShip and chose FuelType and Home Planet
 public ActionResult Create(SpaceShip spaceShip, int PlanetId, int FuelTypeId)
 {
     _db.SpaceShips.Add(spaceShip);
     if (PlanetId != 0 && FuelTypeId != 0)
     {
         _db.PlanetSpaceShipFuelType.Add(new PlanetSpaceShipFuelType()
         {
             PlanetId = PlanetId, FuelTypeId = FuelTypeId, SpaceShipId = spaceShip.SpaceShipId
         });
     }
     _db.SaveChanges();
     return(RedirectToAction("Index"));
 }
 public ActionResult Create(Planet planet)
 {
     _db.Planets.Add(planet);
     _db.SaveChanges();
     return(RedirectToAction("Index"));
 }
 public ActionResult Create(FuelType fuelType)
 {
     _db.FuelTypes.Add(fuelType);
     _db.SaveChanges();
     return(RedirectToAction("Index"));
 }