public virtual JsonResult Update(DepartmentEditForm form)
{
return(base.UpdateBase(form));
}
public async Task<ActionResult> Edit(DepartmentEditForm form)
{
string[] fieldsToBind = new string[]
{
"Name", "Budget", "StartDate", "InstructorID", "RowVersion"
};
if (form == null)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
var departmentToUpdate = await UoW.Departments.GetByIdAsync(form.Id);
if (departmentToUpdate == null)
{
Department deletedDepartment = new Department();
TryUpdateModel(deletedDepartment, fieldsToBind);
ModelState.AddModelError(string.Empty, "Unable to save changes. The department was deleted by another user.");
return View(deletedDepartment).WithError("Error occured! Look at the info below.");
}
if (TryUpdateModel(departmentToUpdate, fieldsToBind))
{
try
{
departmentToUpdate.RowVersion = form.RowVersion;
await UoW.CommitAsync();
return RedirectToAction("Index")
.WithSuccess("Department Updated Successfully!");
}
catch (DbUpdateConcurrencyException ex)
{
var entry = ex.Entries.Single();
var clientValues = (Department)entry.Entity;
var databaseEntry = entry.GetDatabaseValues();
if (databaseEntry == null)
{
ModelState.AddModelError(string.Empty, "Unable to save changes. The department was deleted by another user.");
}
else
{
var databaseValues = (Department)databaseEntry.ToObject();
if (databaseValues.Name != clientValues.Name)
ModelState.AddModelError("Name", "Current value: " + databaseValues.Name);
if (databaseValues.Budget != clientValues.Budget)
ModelState.AddModelError("Budget", "Current value: " + string.Format("{0:c}", databaseValues.Budget));
if (databaseValues.StartDate != clientValues.StartDate)
ModelState.AddModelError("StartDate", "Current value: " + string.Format("{0:d}", databaseValues.StartDate));
if (databaseValues.InstructorId != clientValues.InstructorId)
ModelState.AddModelError("InstructorId", "Current value: " + UoW.Instructors.GetById(databaseValues.InstructorId.Value).FullName);
ModelState.AddModelError(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.");
departmentToUpdate.RowVersion = databaseValues.RowVersion;
}
}
catch (RetryLimitExceededException /* dex */)
{
//Log the error (uncomment dex variable name and add a line here to write a log.
ModelState.AddModelError("", "Unable to save changes. Try again, and if the problem persists, see your system administrator.");
}
}
return View(departmentToUpdate).WithError("Error occured! Look at the info below.");
}
