Пример #1
0
        public static async void FetchData()
        {
            // REMOVE FOR PERSISTENT Data
            Context.Database.EnsureDeleted();

            // Ensure the Database is Created
            Context.Database.EnsureCreated();

            // Set URL of api Manager to point to the Brands API
            // Load the Brands that Validate into the Local Storage
            List <Brand> brands = await APIManager.GetBrandsAsync();



            try
            {
                Context.Brand.AttachRange(brands);
                Context.Brand.AddRange(brands);
            }
            catch (DbUpdateException exception)
            {
                Debug.WriteLine(exception.Message);

                Context.Brand.UpdateRange(brands);
            }
            finally
            {
                Context.ChangeTracker.DetectChanges();
                Context.SaveChanges();
            }

            // Load the Beverages that Validate into the Local Storage
            List <Beverage> beverages = await APIManager.GetBeveragesAsync();

            try
            {
                Context.Beverage.AttachRange(beverages);
                Context.Beverage.AddRange(beverages);
            }
            catch (DbUpdateException exception)
            {
                Debug.WriteLine(exception.Message);

                Context.Beverage.UpdateRange(beverages);
            }
            finally
            {
                Context.ChangeTracker.DetectChanges();
                Context.SaveChanges();
            }


            // Release database resources
            //Context?.Dispose();
        }