private static void RemoveBooksWithFewCopies(ShopSystemContext context)
{
var booksToRemove = context.Books.Where(b => b.Copies < 4200);
var count = booksToRemove.Count();
context.Books
.RemoveRange(booksToRemove);
context.SaveChanges();
Console.WriteLine($"{count} books were deleted");
}
private static void IncreaseBooksCopies(ShopSystemContext context)
{
var books = context.Books
.ToList();
int count = 0;
foreach (var book in books)
{
if (book.ReleaseDate > DateTime.Parse("06/01/2013"))
{
book.Copies += 44;
count += 44;
}
}
context.SaveChanges();
Console.WriteLine(count);
}