public static void EnsurePopulated(IApplicationBuilder application)
        {
            BookDbContext context = application.ApplicationServices.CreateScope().ServiceProvider.GetRequiredService <BookDbContext>();

            if (context.Database.GetPendingMigrations().Any())
            {
                context.Database.Migrate();
            }
            if (!context.Books.Any())
            {
                context.Books.AddRange(
                    new Book
                {
                    Title     = "Hunger Games",
                    Author    = "Susan Colins",
                    Publisher = "Scholastic Corporation",
                    ISBN      = "123-4564564561",
                    Category  = "Young Adult",
                    Price     = 15.34
                },

                    new Book
                {
                    Title     = "Catching Fire",
                    Author    = "Susan Colins",
                    Publisher = "Scholastic Corporation",
                    ISBN      = "123-4564564562",
                    Category  = "Young Adult",
                    Price     = 22.00
                },

                    new Book
                {
                    Title     = "Mocking Bird",
                    Author    = "Susan Colins",
                    Publisher = "Scholastic Corporation",
                    ISBN      = "123-4564564563",
                    Category  = "Young Adult",
                    Price     = 30.55
                });

                context.SaveChanges();
            }
        }
Beispiel #2
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        public static void EnsurePopulated(IApplicationBuilder application)
        {
            BookDbContext context = application.ApplicationServices.CreateScope().ServiceProvider.GetRequiredService <BookDbContext>();

            //if there is already data inside of the database then just pull from that
            if (context.Database.GetPendingMigrations().Any())
            {
                context.Database.Migrate();
            }

            //if there is no context/data in the database then add this data to the database
            if (!context.Books.Any())
            {
                context.Books.AddRange(
                    new BookModel
                {
                    Title            = "Les Miserables",
                    AuthorFirstName  = "Victor",
                    AuthorMiddleName = "",
                    AuthorLastName   = "Hugo",
                    Publisher        = "Signet",
                    ISBN             = "978-0451419439",
                    Category         = "Classic",
                    Classification   = "Fiction",
                    Price            = 9.95,
                    Pages            = 1488
                },

                    new BookModel
                {
                    Title            = "Team of Rivals",
                    AuthorFirstName  = "Doris",
                    AuthorMiddleName = "Kearns",
                    AuthorLastName   = "Goodwin",
                    Publisher        = "Simon & Schuster",
                    ISBN             = "978-0743270755",
                    Category         = "Biography",
                    Classification   = "Non-Fiction",
                    Price            = 14.58,
                    Pages            = 944
                },

                    new BookModel
                {
                    Title            = "The Snowball",
                    AuthorFirstName  = "Alice",
                    AuthorMiddleName = "",
                    AuthorLastName   = "Schroeder",
                    Publisher        = "Bantam",
                    ISBN             = "978-0553384611",
                    Category         = "Biography",
                    Classification   = "Non-Fiction",
                    Price            = 21.54,
                    Pages            = 832
                },

                    new BookModel
                {
                    Title            = "American Ulysses",
                    AuthorFirstName  = "Ronald",
                    AuthorMiddleName = "C.",
                    AuthorLastName   = "White",
                    Publisher        = "Random House",
                    ISBN             = "978-0812981254",
                    Category         = "Biography",
                    Classification   = "Non-Fiction",
                    Price            = 11.61,
                    Pages            = 864
                },

                    new BookModel
                {
                    Title            = "Unbroken",
                    AuthorFirstName  = "Laura",
                    AuthorMiddleName = "",
                    AuthorLastName   = "Hillenbrand",
                    Publisher        = "Random House",
                    ISBN             = "978-0812974492",
                    Category         = "Historical",
                    Classification   = "Non-Fiction",
                    Price            = 13.33,
                    Pages            = 528
                },

                    new BookModel
                {
                    Title            = "The Great Train Robbery",
                    AuthorFirstName  = "Michael",
                    AuthorMiddleName = "",
                    AuthorLastName   = "Crichton",
                    Publisher        = "Vintage",
                    ISBN             = "978-0804171281",
                    Category         = "Historical Fiction",
                    Classification   = "Fiction",
                    Price            = 15.95,
                    Pages            = 288
                },

                    new BookModel
                {
                    Title            = "Deep Work",
                    AuthorFirstName  = "Cal",
                    AuthorMiddleName = "",
                    AuthorLastName   = "Newport",
                    Publisher        = "Grand Central Publishing",
                    ISBN             = "978-1455586691",
                    Category         = "Self-Help",
                    Classification   = "Non-Fiction",
                    Price            = 14.99,
                    Pages            = 304
                },

                    new BookModel
                {
                    Title            = "It's Your Ship",
                    AuthorFirstName  = "Michael",
                    AuthorMiddleName = "",
                    AuthorLastName   = "Abrashoff",
                    Publisher        = "Grand Central Publishing",
                    ISBN             = "978-1455523023",
                    Category         = "Self-Help",
                    Classification   = "Non-Fiction",
                    Price            = 21.66,
                    Pages            = 240
                },

                    new BookModel
                {
                    Title            = "The Virgin Way",
                    AuthorFirstName  = "Richard",
                    AuthorMiddleName = "",
                    AuthorLastName   = "Branson",
                    Publisher        = "Portfolio",
                    ISBN             = "978-1591847984",
                    Category         = "Business",
                    Classification   = "Non-Fiction",
                    Price            = 29.16,
                    Pages            = 400
                },

                    new BookModel
                {
                    Title            = "Sycamore Row",
                    AuthorFirstName  = "John",
                    AuthorMiddleName = "",
                    AuthorLastName   = "Grisham",
                    Publisher        = "Bantam",
                    ISBN             = "978-0553393613",
                    Category         = "Thrillers",
                    Classification   = "Fiction",
                    Price            = 15.03,
                    Pages            = 642
                },

                    //Drew's three additional books
                    new BookModel
                {
                    Title            = "How to Win Friends and Influence People",
                    AuthorFirstName  = "Dale",
                    AuthorMiddleName = "",
                    AuthorLastName   = "Carnegie",
                    Publisher        = "Pocket Books",
                    ISBN             = "978-0671027032",
                    Category         = "Business",
                    Classification   = "Non-Fiction",
                    Price            = 11.85,
                    Pages            = 288
                },

                    new BookModel
                {
                    Title            = "Shoe Dog",
                    AuthorFirstName  = "Phil",
                    AuthorMiddleName = "",
                    AuthorLastName   = "Knight",
                    Publisher        = "Scribner",
                    ISBN             = "978-1501135910",
                    Category         = "Business",
                    Classification   = "Non-Fiction",
                    Price            = 29.00,
                    Pages            = 383
                },

                    new BookModel
                {
                    Title            = "Atomic Habits",
                    AuthorFirstName  = "James",
                    AuthorMiddleName = "",
                    AuthorLastName   = "Clear",
                    Publisher        = "Avery",
                    ISBN             = "978-0735211292",
                    Category         = "Self-Help",
                    Classification   = "Non-Fiction",
                    Price            = 18.06,
                    Pages            = 320
                }
                    );

                //save these objects to the database
                context.SaveChanges();
            }
        }