/// <summary>
/// Provides a list of books created by an author. It will use the IBookStoreEntities
/// created by the factory to list the books. The IBookeStoreEntities created by
/// the factory could be a fake database, or a real SQL server database, this code doesn't
/// care.
/// </summary>
/// <param name="authorLastName">The last name of the author.</param>
/// <returns>A list of books created by an author with the specified last name.</returns>
public List <Book> ListBooksCreatedBy(string authorLastName)
{
using (IBookStoreEntities entities = factory.Create())
{
return(entities.Books
.Where(b =>
b.Author.LastName == authorLastName)
.ToList());
}
}
/// <summary>
/// Initialises the books table of the database.
/// </summary>
/// <param name="database">The entities to update.</param>
private void CreateBooks(IBookStoreEntities database)
{
// Add fake books.
if (!database.Books.Any())
{
var authorOne = new Author()
{
DateOfBirth = new DateTime(2010, 1, 1),
FirstName = "First Name 1",
LastName = "Last Name 1"
};
database.Books.Add(new Book()
{
Author = authorOne,
Title = "Book 1",
YearPublished = 2010
});
database.Authors.Add(authorOne);
var authorTwo = new Author()
{
DateOfBirth = new DateTime(2011, 1, 1),
FirstName = "First Name 2",
LastName = "Last Name 2"
};
database.Books.Add(new Book()
{
Author = authorTwo,
Title = "Book 2",
YearPublished = 2011
});
database.Authors.Add(authorOne);
database.SaveChanges();
}
}
/// <summary>
/// Initialises the books table of the database.
/// </summary>
/// <param name="database">The entities to update.</param>
private void CreateBooks(IBookStoreEntities database)
{
// Add fake books.
if (!database.Books.Any())
{
var authorOne = new Author()
{
DateOfBirth = new DateTime(2010, 1, 1),
FirstName = "First Name 1",
LastName = "Last Name 1"
};
database.Books.Add(new Book()
{
Author = authorOne,
Title = "Book 1",
YearPublished = 2010
});
database.Authors.Add(authorOne);
var authorTwo = new Author()
{
DateOfBirth = new DateTime(2011, 1, 1),
FirstName = "First Name 2",
LastName = "Last Name 2"
};
database.Books.Add(new Book()
{
Author = authorTwo,
Title = "Book 2",
YearPublished = 2011
});
database.Authors.Add(authorOne);
database.SaveChanges();
}
}
/// <summary>
/// This method could be used to initialise either a real database
/// or a fake one.
/// </summary>
public void Initialise(IBookStoreEntities database)
{
CreateBooks(database);
database.SaveChanges();
}
/// <summary>
/// This method could be used to initialise either a real database
/// or a fake one.
/// </summary>
public void Initialise(IBookStoreEntities database)
{
CreateBooks(database);
database.SaveChanges();
}
