//FOR ABOVE METHOD, MADE BCS OF AN ERROR;
/*
* The instance of entity type 'Rating' cannot be tracked because another
* instance with the key value '{Id: x}' is already being tracked
*/
public bool DeleteRatingFromDB(int userid, string titleid)
{
using var ctx = new ImdbContext();
var dbRating = GetMovieRatingFromUser(userid, titleid);
ctx.Remove(dbRating);
ctx.SaveChanges();
return(true);
}