/// <summary>
/// UpdateBook()
/// </summary>
/// <param name="Id"></param>
/// <param name="vm"></param>
/// <returns></returns>
public async Task <BookViewModel> UpdateBook(int Id, BookViewModel vm)
{
BookViewModel book = await _db.Books.Where(a => a.ID == Id).SingleOrDefaultAsync();
if (book != null)
{
string originalEdition = book.Edition;
book.Title = vm.Title;
book.Author = vm.Author;
book.Edition = vm.Edition;
book.Genre = vm.Genre;
book.ISBN = vm.ISBN;
book.Location = vm.Location;
book.YearPublished = vm.YearPublished;
book.DateUpdated = DateTime.Now;
_db.Update(book);
await _db.SaveChangesAsync();
// Detect a changed field.
if (vm.Edition != originalEdition)
{
BookInventoryChangedIntegrationEvent bookInventoryChangedIntegrationEvent
= new BookInventoryChangedIntegrationEvent(Id, book.Edition, originalEdition);
await _eventBus.Publish(bookInventoryChangedIntegrationEvent);
await Task.Delay(2000);
}
}
return(book);
}
public static void Run([ServiceBusTrigger("bookloanasbqueue",
Connection = "AzureWebJobsServiceBusQueue")] Message myQueueItem,
ILogger log)
{
// Deserialize the body of the message..
var body = Encoding.UTF8.GetString(myQueueItem.Body);
BookInventoryChangedIntegrationEvent bookInventoryChangedIntegrationEvent =
JsonConvert.DeserializeObject <BookInventoryChangedIntegrationEvent>(body);
log.LogInformation($"C# ServiceBus queue trigger function processed message: { bookInventoryChangedIntegrationEvent.BookId}");
log.LogInformation($"C# ServiceBus queue trigger function processed message old edition: {bookInventoryChangedIntegrationEvent.OldEdition}");
log.LogInformation($"C# ServiceBus queue trigger function processed message new edition: {bookInventoryChangedIntegrationEvent.NewEdition}");
}
