public List <Car> GetAll(Expression <Func <Car, bool> > filter = null)
{
using (CarRentalDBContext context = new CarRentalDBContext())
{
return(filter == null?context.Set <Car>().ToList() : context.Set <Car>().Where(filter).ToList());
// filter = holding lambda expressions while using Linq queries
}
}
public Car Get(Expression <Func <Car, bool> > filter = null)
{
using (CarRentalDBContext context = new CarRentalDBContext())
{
return(context.Set <Car>().SingleOrDefault(filter));
}
}