internal void AddBookToSnapshot(cBook newBook)
{
Books.Add(newBook);
var overrides = new XmlAttributeOverrides();
var attributes = new XmlAttributes();
attributes.XmlIgnore = true;
string plainTextXml;
newBook.Borrowed = new cBorrowed
{
FirstName = "",
LastName = "",
From = ""
};
using (var sw = new StringWriter())
{
var xs = new XmlSerializer(typeof(cLibrary), overrides);
xs.Serialize(sw, this);
plainTextXml = sw.ToString();
}
XmlDocument newDoc = new XmlDocument();
newDoc.LoadXml(plainTextXml);
LibraryProvider.StreamSnapshot = new MemoryStream();
LibraryProvider.StreamSnapshot.Position = 0;
newDoc.Save(LibraryProvider.StreamSnapshot);
LibraryProvider.StreamSnapshot.Position = 0;
}
internal void EditBook(cBook newBook)
{
cBook originalBook = (from b in Books where b.Id == newBook.Id select b).First();
originalBook.Name = newBook.Name;
originalBook.Author = newBook.Author;
originalBook.Borrowed = newBook.Borrowed;
UpdateSnapshotFromDataLayer();
}
internal void ReturnBook(int id)
{
cBook BookToReturn = (from b in Books
where b.Id == id
select b).First();
BookToReturn.Borrowed = null;
UpdateSnapshotFromDataLayer();
}
internal void BorrowBook(int bookId, string firstName, string lastName, DateTime now)
{
cBook bookToAssign = (from book in Books where book.Id == bookId select book).First();
if (bookToAssign.Borrowed == null)
{
bookToAssign.Borrowed = new cBorrowed();
}
bookToAssign.Borrowed.FirstName = firstName;
bookToAssign.Borrowed.LastName = lastName;
bookToAssign.Borrowed.From = now.ToString();
UpdateSnapshotFromDataLayer();
}