예제 #1
0
        public void UpdatePriceValue(int product, int store, float productPrice)
        {
            var priceValueStored = db.Prices.FirstOrDefault(p => p.ProductID == product && p.StoreID == store);

            if (priceValueStored != null)
            {
                priceValueStored.Amount = productPrice;
            }
            try
            {
                db.SaveChanges();
            }
            catch (Exception)
            {
                Console.WriteLine("Price Value could not be updated");
            }
        }
        public static void Initialize(StorePriceComparisonDbContext db)
        {
            db.Database.EnsureCreated();
            if (db.Stores.Any())
            {
                return;   // DB has been seeded
            }
            var stores = new Store[]
            {
                new Store()
                {
                    Name = "Coles", Address = "Payneham Rd, Stepney SA 5069"
                },
                new Store()
                {
                    Name = "Alde", Address = "398 Magill Rd, Kensington Park SA 5068"
                },
                new Store()
                {
                    Name = "Woolsworth", Address = "104 Walkerville Terrace, Walkerville SA 5081"
                }
            };

            foreach (Store s in stores)
            {
                db.Stores.Add(s);
            }
            db.SaveChanges();
            Console.WriteLine("Store data seeded");

            //Seeding Category Data

            var categories = new Category[]
            {
                new Category {
                    Name = "Baby Items"
                },
                new Category {
                    Name = "Baking"
                },
                new Category {
                    Name = "Beverages"
                },
                new Category {
                    Name = "Bread/Bakery"
                },
                new Category {
                    Name = "Bulk"
                },
                new Category {
                    Name = "Canned Goods"
                },
                new Category {
                    Name = "Cereal/Breakfast"
                },
                new Category {
                    Name = "Condiments"
                },
                new Category {
                    Name = "Dairy"
                },
                new Category {
                    Name = "Deli"
                },
                new Category {
                    Name = "Frozen"
                },
                new Category {
                    Name = "Meats"
                },
                new Category {
                    Name = "Pasta/Rice"
                },
                new Category {
                    Name = "Produce"
                },
                new Category {
                    Name = "Snacks"
                },

                //non-food
                new Category {
                    Name = "Cleaning Supplies"
                },
                new Category {
                    Name = "Health and Beauty"
                },
                new Category {
                    Name = "Kitchen Utensils"
                },
                new Category {
                    Name = "Paper Products"
                },
                new Category {
                    Name = "Pet Supplies"
                },

                //finally
                new Category {
                    Name = "Other"
                }
            };

            foreach (Category c in categories)
            {
                db.Categories.Add(c);
            }
            db.SaveChanges();


            //Seeding Product Data
            var products = new Product[]
            {
                new Product
                {
                    Name = "Great Grains Crunchy Pecans", CategoryID = categories.Single(p => p.Name == "Pet Supplies").CategoryID
                },
            };

            foreach (Product p in products)
            {
                db.Products.Add(p);
            }
            db.SaveChanges();

            var prices = new Price[]
            {
                new Price
                {
                    StoreID   = stores.Single(s => s.Name == "Coles").StoreID,
                    ProductID = products.Single(p => p.Name == "Great Grains Crunchy Pecans").ProductID,
                    Quantity  = Quantity.Pound, Amount = 10
                }
            };

            foreach (Price p in prices)
            {
                db.Prices.Add(p);
            }
            db.SaveChanges();
        }