private BooksDBContext _context; //context is th DB set of projects
//the constructor
public EFBooksRepository(BooksDBContext context)
{
_context = context;
}
public static void EnsurePopulated(IApplicationBuilder application)
{
//make sure it was populated okay
BooksDBContext context = application.ApplicationServices.
CreateScope().ServiceProvider.GetRequiredService <BooksDBContext>();
//check to see if there are any pending migrations
if (context.Database.GetPendingMigrations().Any())
{
//Migrate those
context.Database.Migrate();
}
//if there aren't any books, fill it with this
if (!context.Books.Any())
{
context.Books.AddRange(
new Book
{
Title = "Unbroken",
AuthorFirstName = "Laura",
AuthorLastName = "Hillenbrand",
PageNumber = 528,
Publisher = "Random House",
ISBN = "978-3642117466",
Price = 13.33f,
Category = "Non-Fiction",
Classification = "Historical"
},
new Book
{
Title = "Les Miserables",
AuthorFirstName = "Victor",
AuthorLastName = "Hugo",
PageNumber = 1488,
Publisher = "Signet",
ISBN = "978-0451419439",
Price = 9.95f,
Category = "Non-Fiction",
Classification = "Historical"
},
new Book
{
Title = "Deep Work",
AuthorFirstName = "Cal",
AuthorLastName = "Newport",
PageNumber = 304,
Publisher = "Grand Central Publishing",
ISBN = "978-1455523023",
Price = 14.99f,
Category = "Non-Fiction",
Classification = "Self-Help"
},
new Book
{
Title = "Team of Rivals",
AuthorFirstName = "Doris",
AuthorMiddleInitial = "K",
AuthorLastName = "Goodwin",
PageNumber = 944,
Publisher = "Simon & Schuster",
ISBN = "978-0743270755",
Price = 14.59f,
Category = "Non-Fiction",
Classification = "Biography"
},
new Book
{
Title = "The Snowball",
AuthorFirstName = "Alice",
AuthorLastName = "Schroeder",
PageNumber = 832,
Publisher = "Bantam",
ISBN = "978-0553384611",
Price = 14.99f,
Category = "Non-Fiction",
Classification = "Biography"
},
new Book
{
Title = "American Ulysses",
AuthorFirstName = "Ronald",
AuthorMiddleInitial = "C",
AuthorLastName = "White",
PageNumber = 864,
Publisher = "Random House",
ISBN = "978-0812981254",
Price = 11.61f,
Category = "Non-Fiction",
Classification = "Biography"
},
new Book
{
Title = "The Great Train Robbery",
AuthorFirstName = "Michael",
AuthorLastName = "Crichton",
PageNumber = 288,
Publisher = "Vintage",
ISBN = "978-0804171281",
Price = 15.95f,
Category = "Fiction",
Classification = "Historical Fiction"
},
new Book
{
Title = "It's Your Ship",
AuthorFirstName = "Michael",
AuthorLastName = "Abrashoff",
PageNumber = 240,
Publisher = "Grand Central Publishing",
ISBN = "978-1455523023",
Price = 21.66f,
Category = "Non-Fiction",
Classification = "Self-Help"
},
new Book
{
Title = "The Virgin Way",
AuthorFirstName = "Richard",
AuthorLastName = "Brandson",
PageNumber = 400,
Publisher = "Portfolio",
ISBN = "978-1591847984",
Price = 29.16f,
Category = "Non-Fiction",
Classification = "Business"
},
new Book
{
Title = "Sycamore Row",
AuthorFirstName = "John",
AuthorLastName = "Grisham",
PageNumber = 642,
Publisher = "Bantam",
ISBN = "978-0553393613",
Price = 15.03f,
Category = "Non-Fiction",
Classification = "Thrillers"
},
new Book
{
Title = "Twilight",
AuthorFirstName = "Stephanie",
AuthorLastName = "Meyers",
PageNumber = 498,
Publisher = "Little, Brown Books for Young Readers",
ISBN = "978-0316160179",
Price = 20.69f,
Category = "Non-Fiction",
Classification = "Romance"
},
new Book
{
Title = "New Moon",
AuthorFirstName = "Stephanie",
AuthorLastName = "Meyers",
PageNumber = 563,
Publisher = "Little, Brown Books for Young Readers",
ISBN = "978-0316160193",
Price = 20.99f,
Category = "Non-Fiction",
Classification = "Romance"
},
new Book
{
Title = "Eclipse",
AuthorFirstName = "Stephanie",
AuthorLastName = "Meyers",
PageNumber = 640,
Publisher = "Little, Brown Books for Young Readers",
ISBN = "978-0316027656",
Price = 15.29f,
Category = "Non-Fiction",
Classification = "Romance"
}
);
//save the changes
context.SaveChanges();
}
}
