/// <summary>
/// Initializes and populates bookInventory with Book objects from database context.
/// </summary>
private void LoadToBookInventory()
{
//Get a list of Book objects from database context
var dbBooks = (from b in context.Books
select b).ToList();
//create and assign bookInventory
bookInventory = new BookInventory(dbBooks);
}
////Returns a generic list of all Book objects in bookInventory whose ISBN contains the string in the argument.
//public List<Book> SearchByISBN(string isbn)
//{
// var result = (from b in bookInventory
// where b.ISBN.ToLower().Contains(isbn.ToLower())
// select b).ToList();
// return result;
//}
////Returns a generic list of all Book objects in bookInventory whose title contains the the string in the argument.
//public List<Book> SearchByTitle(string title)
//{
// var result = (from b in bookInventory
// where b.Title.ToLower().Contains(title.ToLower())
// select b).ToList();
// return result;
//}
////Returns a generic list of all Book objects in bookInventory whose author's first name or last name contains
////the string in the argument.
//public List<Book> SearchByAuthor(string author)
//{
// var result = (from b in bookInventory
// where b.Author.Person.FirstName.ToLower().Contains(author.ToLower()) ||
// b.Author.Person.LastName.ToLower().Contains(author.ToLower())
// select b).ToList();
// return result;
//}
////Returns a generic list of all Book objects in bookInventory whose subject contains the string in the argument.
//public List<Book> SearchBySubject(string subject)
//{
// var result = (from b in bookInventory
// where b.Subject.ToLower().Contains(subject.ToLower())
// select b).ToList();
// return result;
//}
/// <summary>
/// Finds all Book objects in the collection that contain the search token
/// </summary>
/// <param name="searchToken">string used to find Book objects</param>
/// <returns>Returns a BookInventory that contains all Book objects in this collection that match the search token</returns>
public BookInventory FindAll(string searchToken)
{
string token = searchToken.ToLower();
BookInventory result = new BookInventory();
foreach (Book b in bookInventory)
{
if (b.ContainsToken(token))
{
result.Add(b);
}
}
return(result);
}
/// <summary>
/// Retrives a list of all Book objects in collection that contain the searchToken
/// </summary>
public void LoadSearchList()
{
//reset ItemsSource
ResultsListView.ItemsSource = null;
//Obtain search results
BookInventory results = controller.SearchBookInventory(this.searchToken);
//Copy search results to observable collection which is filtered depending on user type
ObservableCollection <Book> filtered = new ObservableCollection <Book>();
//if the user is a patron, do not show any Book objects that have 0 total copies
foreach (Book b in results)
{
if (b.NumberOfCopies == 0)
{
if (controller.IsLibrarian)
{
filtered.Add(b);
}
}
else
{
filtered.Add(b);
}
}
//Bind the filtered list
ResultsListView.ItemsSource = filtered;
//Update HasResult property based on the filtered count
if (filtered.Count == 0)
{
HasResult = false;
}
else
{
HasResult = true;
}
}