private void setBackupCounts(object _, object __)
{
var books = DbContexts.GetContext()
.GetLibrary_Flat_NoTracking()
.Select(sp => sp.Book)
.ToList();
setBookBackupCounts(books);
setPdfBackupCounts(books);
}
public static LibraryBook GetSingleLibraryBook(string productId)
{
using var context = DbContexts.GetContext();
var libraryBook = context
.Library
.GetLibrary()
.SingleOrDefault(lb => lb.Book.AudibleProductId == productId);
return(libraryBook);
}
private static LibraryBook getNextValidBook(this IProcessable processable)
{
var libraryBooks = DbContexts.GetContext().GetLibrary_Flat_NoTracking();
foreach (var libraryBook in libraryBooks)
{
if (processable.Validate(libraryBook))
{
return(libraryBook);
}
}
return(null);
}
public void Display()
{
if (hasBeenDisplayed)
{
return;
}
hasBeenDisplayed = true;
//
// transform into sorted GridEntry.s BEFORE binding
//
context = DbContexts.GetContext();
var lib = context.GetLibrary_Flat_WithTracking();
// if no data. hide all columns. return
if (!lib.Any())
{
for (var i = dataGridView.ColumnCount - 1; i >= 0; i--)
{
dataGridView.Columns.RemoveAt(i);
}
return;
}
var orderedGridEntries = lib
.Select(lb => new GridEntry(lb)).ToList()
// default load order
.OrderByDescending(ge => ge.Purchase_Date)
//// more advanced example: sort by author, then series, then title
//.OrderBy(ge => ge.Authors)
// .ThenBy(ge => ge.Series)
// .ThenBy(ge => ge.Title)
.ToList();
//
// BIND
//
gridEntryBindingSource.DataSource = orderedGridEntries.ToSortableBindingList();
//
// FILTER
//
filter();
BackupCountsChanged?.Invoke(this, EventArgs.Empty);
}
/// <summary>Process the first valid product. Create default context</summary>
/// <returns>Returns either the status handler from the process, or null if all books have been processed</returns>
public static async Task <StatusHandler> ProcessSingleAsync(this IProcessable processable, string productId)
{
using var context = DbContexts.GetContext();
var libraryBook = context
.Library
.GetLibrary()
.SingleOrDefault(lb => lb.Book.AudibleProductId == productId);
if (libraryBook == null)
{
return(null);
}
if (!processable.Validate(libraryBook))
{
return new StatusHandler {
"Validation failed"
}
}
;
return(await processBookAsync(processable, libraryBook));
}
DbContext GetDbContext(DbContexts contexts, IInjectionPoint injectionPoint)
{
return(contexts.GetContext(injectionPoint));
}
public IDbSet <T> GetDbSet(DbContexts contexts, IInjectionPoint injectionPoint)
{
return(contexts.GetContext(injectionPoint).Set <T>());
}
//
// DO NOT USE ConfigureAwait(false) WITH ProcessAsync() unless ensuring ProcessAsync() implementation is cross-thread compatible
// ProcessAsync() often does a lot with forms in the UI context
//
// when used in foreach: stateful. deferred execution
public static IEnumerable <LibraryBook> GetValidLibraryBooks(this IProcessable processable)
=> DbContexts.GetContext()
.GetLibrary_Flat_NoTracking()
.Where(libraryBook => processable.Validate(libraryBook));
