public void RemoveBook(int id)
{
using (BookContext db = new BookContext())
{
try
{
Book book = db.Books.Find(id);
if (book != null)
{
db.Books.Remove(book);
db.SaveChanges();
}
}
catch (Exception ex)
{
WriteLogFile.WriteLog("LibraryAdminLog.txt", ex.Message);
throw;
}
}
}
public string ShowBooks()
{
using (BookContext db = new BookContext())
{
try
{
List <Book> books = db.Books.ToList();
string bookList = "";
foreach (Book book in books)
{
bookList += String.Format("{0}: {1} {2}: {3} {4}: {5} {6}: {7} {8}: {9} {10}: {11}\n",
Properties.strings.ID, book.Id, Properties.strings.Title, book.Title, Properties.strings.Author,
book.Author, Properties.strings.Genre, book.Genre, Properties.strings.Year, book.Year, Properties.strings.Amount, book.Amount);
}
return(bookList);
}
catch (Exception ex)
{
WriteLogFile.WriteLog("LibraryAdminLog.txt", ex.Message);
throw;
}
}
}
public void AddBook(string author, string title, string genre, int year, int amount, int id)
{
if (amount < 1)
{
UnableToSetAmountLessThan1Exception ex = new UnableToSetAmountLessThan1Exception();
WriteLogFile.WriteLog("LibraryAdminLog.txt", ex.Message);
throw new UnableToSetAmountLessThan1Exception();
}
using (BookContext db = new BookContext())
{
try
{
db.Books.Add(new Book(author, title, genre, year, amount, id));
db.SaveChanges();
}
catch (Exception ex)
{
WriteLogFile.WriteLog("LibraryAdminLog.txt", ex.Message);
throw;
}
}
}