public Boolean AddNewRecord(Book book)
{
Book thisBook = book;
try
{
using (StreamWriter writerBooks = new StreamWriter(finalPathname, true))
{
writerBooks.WriteLineAsync(String.Format(
"{0},{1},{2},{3},${4:0.00},{5}",
thisBook.ID,
thisBook.name,
thisBook.author,
thisBook.year,
thisBook.price,
thisBook.stock
));
writerBooks.Close();
return true;
}
}
catch (Exception Ex)
{
return false;
throw new FaultException<Exception>(new Exception(Ex.Message));
}
}
public void Add(Book book)
{
if (book == null)
{
throw new Exception();
}
books.Add(book);
}
static void Main()
{
Book regularBook = new Book("Under the Yawk", "Ivan Vazov", 10.50);
Console.WriteLine(regularBook);
Console.WriteLine();
GoldenEditionBook goldenBook = new GoldenEditionBook("Tutun", "Dimityr Dimov", 22.50);
Console.WriteLine(goldenBook);
}
//public static List<Book> bookCatalog = new List<Book>();
public static Book AddBookToCatalog(string isbn, string title, string author, int pubYear, decimal price)
{
using (var db = new BookModel())
{
var book = new Book();
book.ISBN = isbn;
book.Title = title;
book.Author = author;
book.PubYear = pubYear;
book.Price = price;
db.bookcatalog.Add(book);
db.SaveChanges();
return book;
}
}
static void PrintTitle(Book b)
{
Console.WriteLine(" {0} " + b.Title);
}
static void PrintTitle(Book book)
{
Console.WriteLine(book.Title);
}
public Boolean updateRecord(Book book, int updatedStock)
{
Book thisBook = book;
String[] bookDetails = {
thisBook.ID,
thisBook.name,
thisBook.author,
thisBook.year.ToString(),
thisBook.price.ToString(),
updatedStock.ToString()
};
Book newBook = createBook(bookDetails, 0);
string thisID = thisBook.ID;
string type = "ID";
deleteBook(type, thisID);
AddNewRecord(newBook);
return true;
}
public Book createBook(String[] bookDetails, int num)
{
List<String> fieldError = new List<String>();
List<String> fieldIsPositive = new List<String>();
bool isFieldEmpty = false;
bool isFieldPositive = false;
for (int i = 0; i <= 5; i++)
{
if (String.IsNullOrWhiteSpace(bookDetails[i]))
{
isFieldEmpty = true;
switch (i)
{
case 0:
fieldError.Add("ID");
break;
case 1:
fieldError.Add("Name");
break;
case 2:
fieldError.Add("Author");
break;
case 3:
fieldError.Add("Year");
break;
case 4:
fieldError.Add("Price");
break;
case 5:
fieldError.Add("Stock");
break;
default:
break;
}
}
}
if (isFieldEmpty)
{
string concatFieldErrors = String.Join(", ", fieldError.ToArray());
throw new ArgumentException("The following field(s) are empty: ", concatFieldErrors);
}
if (isFieldPositive)
{
string concatFieldPositive = String.Join(", ", fieldIsPositive.ToArray());
throw new ArgumentException("The following field(s) must be positive: ", concatFieldPositive);
}
bool isPositivePrice = float.Parse(bookDetails[4].Trim('$')) > 0;
if (!isPositivePrice)
{
throw new ArgumentException("Input(s) for Year, Price and Stock must be positive.");
}
if (!IsYear(bookDetails[3]))
{
throw new FormatException("Year must be valid and contain exactly 4 chars.");
}
Book thisBook = new Book();
thisBook.num = num;
thisBook.ID = bookDetails[0];
thisBook.name = bookDetails[1];
thisBook.author = bookDetails[2];
thisBook.year = int.Parse(bookDetails[3]);
thisBook.price = float.Parse(bookDetails[4].Trim('$'));
thisBook.stock = int.Parse(bookDetails[5]);
return thisBook;
}
internal void AddBookToTotal(Book book)
{
countBooks++;
priceBooks += book.Price;
}
public void AddBook(Book book)
{
bookList.Add(book);
}
internal void AddBookToTotal(Book book)
{
countBooks++;
priceBooks += book.Price;
}
public void AddBook(Book book)
{
bookList.Add(book);
}
/// <summary>
/// Интерактивное меню для добавления книги
/// </summary>
/// <param name="db"></param>
static void AddBookMenu(BookStoreContext db)
{
Console.WriteLine("1) Обычная книга");
Console.WriteLine("2) Научная книга");
Console.WriteLine("3) Журнал");
Console.Write("Выберите тип книги, который хотите добавить: ");
byte menuChoice;
if (Byte.TryParse(Console.ReadLine(), out menuChoice))
{
Console.WriteLine();
PrintAuthorsList(db);
Console.Write("Введите идентификатор его автора: ");
Console.WriteLine();
int authorId;
if (Int32.TryParse(Console.ReadLine(), out authorId))
{
var author = db.Authors.Find(authorId);
if (author != null)
{
Console.Write("Введите название: ");
string name = Console.ReadLine();
Book book = null;
if (menuChoice == 1)
{
book = new Book()
{
Name = name
};
}
else if (menuChoice == 2)
{
Console.Write("Введите тип книги (учебник, справочник): ");
string type = Console.ReadLine();
book = new ScienceBook()
{
Name = name, Type = type
};
}
else if (menuChoice == 3)
{
Console.Write("Для кого предназначен журнал? ");
string reader = Console.ReadLine();
book = new Magazine()
{
Name = name, ReaderType = reader
};
}
db.Books.Add(book);
author.AuthorBooks.Add(new AuthorBook()
{
Book = book
});
db.SaveChanges();
}
else
{
Console.WriteLine("Автора с таким идентификатором нет в базе");
}
}
else
{
Console.WriteLine("Ожидалось целое число");
}
}
}
