public FilmLocations addLocationToFilm(string filmName, string locationName, string xCoord, string yCoord)
        {
            FilmLocations filmToModify = findFilmLocationByName(filmName);
            List<Location> locsInFilm = null;

            if (filmToModify != null)
            {
                // Create a location with dependent Point object. This will auto-persist the dependents
                Location location = new Location(locationName, new Point(xCoord, yCoord));

                // If there is no list, create one
                if (filmToModify.locations != null)
                    locsInFilm = filmToModify.locations.ToList();
                else
                    locsInFilm = new List<Location>();

                // Add the new location to the existing list..
                locsInFilm.Add(location);

                // ... and save it back into the object
                filmToModify.locations = locsInFilm;
            }

            // EF will only save the main object (and hence the dependents) if it is marked as modified
            db.Entry(filmToModify).State = EntityState.Modified;
            db.SaveChanges();

            // Check it comes back (legacy)
            FilmLocations x = findFilmLocationByName(filmName);

            return filmToModify;
        }
        public Location addLocation(string locationName, string xCoord, string yCoord)
        {
            PointDAL pointDAL = new PointDAL();
            Point point = pointDAL.addPoint(xCoord, yCoord);

            Location location = new Location(locationName, point);

            db.locations.Add(location);

            return location;
        }