public static void AddBook(int catId, string Title, string Genre, string Author, string Publication, int PagesCount, int Year, EnumFileFormat fileFormat, List<string> Tags)
{
Book book = new Book();
book.parentId = catId;
book.Title = Title;
book.Author = Author;
book.parentId = catId;
book.Publication = Publication;
book.PagesCount = PagesCount;
book.Year = Year;
book.FileFormat = fileFormat;
book.Genre = Genre;
book.Tags = Tags;
Catalog catalog = new Catalog();
catalog.Books.InsertOnSubmit(book);
catalog.SubmitChanges();
int bookId = book.Id;
foreach (string tag in book.Tags)
{
BookTag bookTag = new BookTag();
bookTag.Name = tag;
bookTag.Book_Id = bookId;
catalog.Tags.InsertOnSubmit(bookTag);
}
catalog.SubmitChanges();
}
public static void PutBook(int bookId, int userId)
{
Catalog catalog = new Catalog();
var q = from book in catalog.UserBooks where book.Book_Id == bookId where book.User_Id == userId select book;
UserBook userBook = q.First();
catalog.UserBooks.DeleteOnSubmit(userBook);
catalog.SubmitChanges();
}
public static void AddCategory(string name)
{
Catalog catalog = new Catalog();
BookCategory cat = new BookCategory();
cat.Name = name;
catalog.BookCategories.InsertOnSubmit(cat);
catalog.SubmitChanges();
}
public static void TakeBook(int bookId, int userId)
{
Catalog catalog = new Catalog();
UserBook userBook = new UserBook();
userBook.Book_Id = bookId;
userBook.User_Id = userId;
catalog.UserBooks.InsertOnSubmit(userBook);
catalog.SubmitChanges();
}
public static void CreateUser(string login, string password)
{
User user = new User();
user.Login = login;
user.Password = password;
Catalog catalog = new Catalog();
catalog.Users.InsertOnSubmit(user);
catalog.SubmitChanges();
}
public static void DeleteBook(Book book)
{
Catalog catalog = new Catalog();
var tagq = from tag in catalog.Tags where tag.Book_Id == book.Id select tag;
foreach (BookTag tag in tagq)
catalog.Tags.DeleteOnSubmit(tag);
var userq = from t in catalog.UserBooks where t.Book_Id == book.Id select t;
foreach (UserBook ub in userq)
catalog.UserBooks.DeleteOnSubmit(ub);
catalog.SubmitChanges();
var q = from qBook in catalog.Books where qBook.Id == book.Id select book;
Book deleteBook = q.First();
catalog.Books.Attach(deleteBook);
catalog.Books.DeleteOnSubmit(deleteBook);
catalog.SubmitChanges();
}
public static void DeleteCategory(int catId)
{
Catalog catalog = new Catalog();
var bookQuery = from book in catalog.Books where book.parentId == catId select book;
foreach (Book bookElem in bookQuery)
DeleteBook(bookElem);
var categoryQuery = from category in catalog.BookCategories where category.Id == catId select category;
catalog.BookCategories.DeleteOnSubmit(categoryQuery.First());
catalog.SubmitChanges();
}
public static void UpdateBook(int bookId, int catId, string Title, string Genre, string Author, string Publication, int PagesCount, int Year, EnumFileFormat fileFormat, List<string> Tags)
{
Catalog catalog = new Catalog();
var q = from ord in catalog.Books where ord.Id == bookId select ord;
Book book = q.First();
book.Title = Title;
book.Author = Author;
book.parentId = catId;
book.Publication = Publication;
book.PagesCount = PagesCount;
book.Year = Year;
book.FileFormat = fileFormat;
book.Genre = Genre;
book.Tags = Tags;
var tagQuery = from tag in catalog.Tags where tag.Book_Id == bookId select tag;
foreach (BookTag bookTag in tagQuery)
{
catalog.Tags.DeleteOnSubmit(bookTag);
}
foreach(string tag in book.Tags)
{
BookTag bookTag = new BookTag();
bookTag.Name = tag;
bookTag.Book_Id = bookId;
catalog.Tags.InsertOnSubmit(bookTag);
}
catalog.SubmitChanges();
}
