public Auto Delete(Auto auto)
{
using (KundenReservationContext dbContext = new KundenReservationContext())
{
dbContext.Entry(auto).State = EntityState.Deleted;
dbContext.SaveChanges();
return(auto);
}
}
public Kunde Delete(Kunde kunde)
{
using (KundenReservationContext dbContext = new KundenReservationContext())
{
dbContext.Entry(kunde).State = EntityState.Deleted;
dbContext.SaveChanges();
return(kunde);
}
}
public Reservation Delete(Reservation res)
{
using (KundenReservationContext dbContext = new KundenReservationContext())
{
dbContext.Entry(res).State = EntityState.Deleted;
dbContext.SaveChanges();
return(res);
}
}
protected static OptimisticConcurrencyException <T> CreateOptimisticConcurrencyException <T>(KundenReservationContext context, T entity)
where T : class
{
var dbEntity = (T)context.Entry(entity)
.GetDatabaseValues()
.ToObject();
return(new OptimisticConcurrencyException <T>($"Update {typeof(T).Name}: Concurrency-Fehler", dbEntity));
}
public Kunde Insert(Kunde kunde)
{
using (KundenReservationContext dbContext = new KundenReservationContext())
{
Kunde insertedKunde = dbContext.Kunden.Add(kunde);
dbContext.Entry(insertedKunde).State = EntityState.Added;
dbContext.SaveChanges();
return(insertedKunde);
}
}
public Auto Insert(Auto auto)
{
using (KundenReservationContext dbContext = new KundenReservationContext())
{
Auto insertedAuto = dbContext.Autos.Add(auto);
dbContext.Entry(insertedAuto).State = EntityState.Added;
dbContext.SaveChanges();
return(insertedAuto);
}
}
public Reservation Insert(Reservation res)
{
using (KundenReservationContext dbContext = new KundenReservationContext())
{
Reservation insertedReservation = dbContext.Reservationen.Add(res);
dbContext.Entry(insertedReservation).State = EntityState.Added;
dbContext.SaveChanges();
return(insertedReservation);
}
}
public Kunde Update(Kunde kunde)
{
using (KundenReservationContext dbContext = new KundenReservationContext())
{
try
{
dbContext.Entry(kunde).State = EntityState.Modified;
dbContext.SaveChanges();
return(kunde);
}
catch (DbUpdateConcurrencyException ex)
{
throw ManagerBase.CreateOptimisticConcurrencyException <Kunde>(dbContext, kunde);
}
}
}
public Auto Update(Auto auto)
{
using (KundenReservationContext dbContext = new KundenReservationContext())
{
try
{
dbContext.Entry(auto).State = EntityState.Modified;
dbContext.SaveChanges();
return(auto);
}
catch (DbUpdateConcurrencyException ex)
{
throw CreateOptimisticConcurrencyException <Auto>(dbContext, auto);
}
}
}
public Reservation Update(Reservation res)
{
using (KundenReservationContext dbContext = new KundenReservationContext())
{
try
{
dbContext.Entry(res).State = EntityState.Modified;
dbContext.SaveChanges();
return(res);
}
catch (DbUpdateConcurrencyException)
{
throw CreateOptimisticConcurrencyException <Reservation>(dbContext, res);
}
}
}
