private static void RemoveBattleFromSamuraiWhenDisconnected()
{
Samurai samurai;
using (var seperateOperation = new BusinessDBContext())
{
samurai = seperateOperation.Samurais.Include(s => s.SamuraiBattles)
.ThenInclude(sb => sb.Battle)
.SingleOrDefault(s => s.Id == 3);
}
var sbToRemove = samurai.SamuraiBattles.SingleOrDefault(sb => sb.BattleId == 1);
samurai.SamuraiBattles.Remove(sbToRemove);
//businessDbContext.Attach(samurai);
//businessDbContext.ChangeTracker.DetectChanges();
businessDbContext.Remove(sbToRemove);
businessDbContext.SaveChanges();
}