public TEntity Get(Expression <Func <TEntity, bool> > filter) { using (ReCapContext context = new ReCapContext()) { return(context.Set <TEntity>().SingleOrDefault(filter)); } }
public List <TEntity> GetAll(Expression <Func <TEntity, bool> > filter = null) { using (ReCapContext context = new ReCapContext()) { return(filter == null?context.Set <TEntity>().ToList() : context.Set <TEntity>().Where(filter).ToList()); } }
public void Update(TEntity entity) { using (ReCapContext context = new ReCapContext()) { var updatedEntity = context.Entry(entity); updatedEntity.State = EntityState.Modified; context.SaveChanges(); } }
public bool IsCarAvailable(int carId) { using (ReCapContext context = new ReCapContext()) { var result = from r in context.Rentals where r.CarId == carId && r.ReturnDate == null select r; return((result.Count() == 0) ? true : false); } }