//executes the creation of a user and saving it to database.
public IActionResult CreateUpdateResult(CreateOrUpdateViewModel vm)
{
//flag to show in view if saving succeded.
ViewBag.Success = true;
//flag to show if new user was created, or a pre existed user was just updated.
ViewBag.NewUser = true;
//this set up an if() that will stop _login view validation to show up
//when a guest try to register using this action.
TempData["Validation"] = "true";
//get current user.
var currentUser = _um.GetUser();
//if user exist, remove username from validation checks.
if (currentUser != null)
{
ModelState.Remove("UserName");
}
//returns to CreateOrUpdate view if form was not completed.
if (!ModelState.IsValid)
{
//check each property, on faild validation create Tempdata with the propery name
//as the key.
foreach (var item in ModelState.Keys)
{
if (ModelState.GetValidationState(item) == ModelValidationState.Invalid)
{
//this will be used to check which properties failed validation
//ad a span with red asterisk will be created in the view besides the
//relevent input element.
TempData[item] = "Show*";
}
}
return(View("CreateOrUpdate", vm));
}
//Create or update User in db.
if (currentUser != null)
{
//Updating an existing user.
ViewBag.NewUser = false;
var userToUpdate = _db.UserRepository.Get(currentUser.Id);
//encrypts the new password.
vm.Password = EncryptionHelper.ComputeHash(vm.Password, "SHA512", null);
_um.UpdateUser(userToUpdate, vm);
//tries to save data to database.
if (!_db.Save())
{
//if failed in saving, show that in the view.
ViewBag.Success = false;
}
}
else
{
//creats a User class from the viewmodel sent in the form.
var user = _um.CreateNewUserFromViewModel(vm);
//encrypts the password.
user.Password = EncryptionHelper.ComputeHash(user.Password, "SHA512", null);
//tires to save user in the database.
if (!_db.UserRepository.Create(user))
{
//if failed in saving, show that in the view.
ViewBag.Success = false;
}
else
{
//Creatin a new user.
ViewBag.NewUser = true;
//after saving, create a new log entry in the database.
_um.CreateCurrentUserCookie(user);
LogEntry entry = new LogEntry()
{
Content = $"user: {user.UserName} created",
TimeStamp = DateTime.Now
};
_db.LogEntryRepository.Create(entry);
}
}
return(View(vm));
}
