public async Task <ActionResult> Edit(DepartmentUpdate.CommandModel commandModel)
{
var request = new DepartmentUpdate.Request(SystemPrincipal.Name, commandModel);
var response = await DomainServices.DispatchAsync <DepartmentUpdate.Response>(request);
if (!response.HasValidationIssues)
{
return(RedirectToAction("Index"));
}
if (response.RowVersion != null)
{
commandModel.RowVersion = response.RowVersion;
}
var instructors = await _QueryRepository.GetEntitiesAsync <Instructor>(new AsNoTrackingQueryStrategy());;
ViewBag.InstructorID = new SelectList(instructors, "ID", "FullName", commandModel.InstructorID);
ModelState.AddRange(response.ValidationDetails.AllValidationMessages);
return(View(commandModel));
}
private static ValidationMessageCollection OnUpdateFailedFunc(IRepository repository, DbUpdateConcurrencyException dbUpdateEx, DepartmentUpdate.CommandModel commandModel, ref byte[] rowVersion)
{
var validationMessages = new ValidationMessageCollection();
var entry = dbUpdateEx.Entries.Single();
var databaseEntry = entry.GetDatabaseValues();
if (databaseEntry == null)
{
validationMessages.Add(string.Empty, "Unable to save changes. The department was deleted by another user.");
return(validationMessages);
}
var databaseValues = (Department)databaseEntry.ToObject();
rowVersion = databaseValues.RowVersion;
if (databaseValues.Name != commandModel.Name)
{
validationMessages.Add(nameof(commandModel.Name), "Current value: " + databaseValues.Name);
}
if (databaseValues.Budget != commandModel.Budget)
{
validationMessages.Add(nameof(commandModel.Budget), "Current value: " + string.Format("{0:c}", databaseValues.Budget));
}
if (databaseValues.StartDate != commandModel.StartDate)
{
validationMessages.Add(nameof(commandModel.StartDate), "Current value: " + string.Format("{0:d}", databaseValues.StartDate));
}
if (databaseValues.InstructorID != commandModel.InstructorID)
{
validationMessages.Add(nameof(commandModel.InstructorID), "Current value: " + repository.GetEntity <Instructor>(p => p.ID == databaseValues.InstructorID.Value).FullName);
}
validationMessages.Add(string.Empty, "The record you attempted to edit "
+ "was modified by another user after you got the original value. The "
+ "edit operation was canceled and the current values in the database "
+ "have been displayed. If you still want to edit this record, click "
+ "the Save button again. Otherwise click the Back to List hyperlink.");
return(validationMessages);
}
