public async Task <ActionResult> Login(LoginViewModel model, string returnUrl)
        {
            if (!ModelState.IsValid)
            {
                return(View(model));
            }

            // This doesn't count login failures towards account lockout
            // To enable password failures to trigger account lockout, change to shouldLockout: true
            var result = await SignInManager.PasswordSignInAsync(model.UserName, model.Password, model.RememberMe, shouldLockout : false);

            switch (result)
            {
            case SignInStatus.Success:

                ApplicationUser user = UserManager.FindByName(model.UserName);
                //  Logger logger = new Logger();
                // logger.addEvent(user.Id, "login");

                CommonHelpers commonHelpers = new CommonHelpers();
                commonHelpers.AddLog_Login(user.Id);

                return(RedirectToLocal(returnUrl));

            case SignInStatus.LockedOut:
                return(View("Lockout"));

            case SignInStatus.RequiresVerification:
                return(RedirectToAction("SendCode", new { ReturnUrl = returnUrl, RememberMe = model.RememberMe }));

            case SignInStatus.Failure:
            default:
                ModelState.AddModelError("", "Invalid login attempt.");
                return(View(model));
            }
        }