static void Main()
{
// Import the books from simple-books.xml file into the database.
BookstoreDb db = new BookstoreDb();
using (db)
{
XmlDocument doc = new XmlDocument();
doc.Load("../../simple-books.xml");
var books = doc.SelectNodes("catalog/book");
foreach (XmlNode book in books)
{
string authorName = book.GetChildText("author");
if (authorName==null)
{
throw new ArgumentNullException("Book must have an author.");
}
string bookTitle = book.GetChildText("title");
if (bookTitle == null)
{
throw new ArgumentNullException("Book must have an title.");
}
decimal bookPrice;
decimal.TryParse(book.GetChildText("price"), out bookPrice);
string bookIsbn = book.GetChildText("isbn");
string bookWebsite = book.GetChildText("web-site");
// check if author exist in the db
Author author = db.Authors.FirstOrDefault(x => x.AuthorName == authorName);
if (author == null)
{
author = new Author();
author.AuthorName = authorName;
db.Authors.Add(author);
}
Book bookToSave = new Book();
bookToSave.BookTitle = bookTitle;
bookToSave.Authors.Add(author);
bookToSave.ISBN = bookIsbn;
bookToSave.Price = bookPrice;
bookToSave.Website = bookWebsite;
db.Books.Add(bookToSave);
db.SaveChanges();
}
}
}
static void Main()
{
BookstoreDb db = new BookstoreDb();
using (db)
{
XmlDocument doc = new XmlDocument();
doc.Load("../../complex-books.xml");
var books = doc.SelectNodes("catalog/book");
foreach (XmlNode book in books)
{
//TransactionScope tran = new TransactionScope(
// TransactionScopeOption.Required,
// new TransactionOptions()
// {
// IsolationLevel = IsolationLevel.RepeatableRead
// });
//tran.Complete();
string bookTitle = book.GetChildText("title");
if (bookTitle == null)
{
throw new ArgumentNullException("Book must have an title.");
}
string bookIsbn = book.GetChildText("isbn");
string bookWebsite = book.GetChildText("web-site");
decimal bookPrice;
decimal.TryParse(book.GetChildText("price"), out bookPrice);
Book bookToSave = new Book();
bookToSave.BookTitle = bookTitle;
bookToSave.ISBN = bookIsbn;
bookToSave.Price = bookPrice;
bookToSave.Website = bookWebsite;
// get all the authors and parse them
var authors = book.SelectSingleNode("authors");
if (authors != null)
{
foreach (XmlNode author in authors.ChildNodes)
{
string authorName = author.InnerText;
Author authorFromDb = db.Authors.FirstOrDefault(x => x.AuthorName == authorName);
if (authorFromDb == null)
{
authorFromDb = new Author();
authorFromDb.AuthorName = authorName;
db.Authors.Add(authorFromDb);
db.SaveChanges();
}
bookToSave.Authors.Add(db.Authors.FirstOrDefault(x => x.AuthorName == authorName));
}
}
// Get all the reviews for the book;
var reviews = book.SelectSingleNode("reviews");
if (reviews != null)
{
foreach (XmlNode review in reviews.ChildNodes)
{
string reviewContent = review.InnerText;
var authorOfReview = review.Attributes.GetNamedItem("author");
var dateOfReview = review.Attributes.GetNamedItem("date");
Review reviewToSave = new Review();
reviewToSave.ReviewContent = reviewContent;
if (authorOfReview != null)
{
string authorName = authorOfReview.InnerText.Trim();
// check if author exists
Author author = db.Authors.FirstOrDefault(x => x.AuthorName == authorName);
if (author == null)
{
author = new Author();
author.AuthorName = authorName;
db.Authors.Add(author);
}
reviewToSave.Author = author;
}
// parse the date
if (dateOfReview != null)
{
string date = dateOfReview.InnerText;
string format = "d-MMM-yyyy";
DateTime dateParsed = DateTime.ParseExact(date, format, CultureInfo.InvariantCulture);
reviewToSave.Date = dateParsed.Date;
}
else
{
reviewToSave.Date = DateTime.Now.Date;
}
bookToSave.Reviews.Add(reviewToSave);
db.Reviews.Add(reviewToSave);
}
}
db.Books.Add(bookToSave);
db.SaveChanges();
}
}
}
