private static void RemoveBooks(BookSystemContext context)
{
int count = 0;
foreach (var book in context.Book.Where(b => b.Copies < 4200))
{
context.Book.Remove(book);
count += 1;
}
Console.WriteLine("{0} books were deleted", count);
context.SaveChanges();
}
// 14
private static void IncreaseBookCopies(BookSystemContext context)
{
int count = 0;
foreach (var book in context.Book.Where(b => b.ReleaseDate > DateTime.Parse("06-06-2013")))
{
book.Copies += 44;
count += 44;
}
Console.WriteLine(count);
context.SaveChanges();
}