public bool UsageValidate(CategoryModel model) { var categoryUsed = DataStorageService.GetAllNews().Any(n => n.Category.Id.Equals(model.Id)); if (!categoryUsed) { categoryUsed = DataStorageService.GetAllProducts().Any(n => n.Category.Id.Equals(model.Id)); } return(!categoryUsed); }
public override IEnumerable <ProductModel> GetAll() { return(DataStorageService.GetAllProducts()); }