BookManager.Web.Controllers.AccountController.Register C# (CSharp) Метод

        public ActionResult Register(RegisterViewModel model, string returnUrl)
        {
            if (ModelState.IsValid)
            {
                // Attempt to register the user
                try
                {
                    if (Context.Users.Where(u => u.Username.ToUpper() == model.UserName.ToUpper()).Count() > 0)
                    {
                        ModelState.AddModelError("", "Username is already used");
                        return View(model);
                    }

                    var user = new User() {
                        Username = model.UserName, Password = model.Password, Roles = new List<Role>() };
                    var role = Context.Roles.Where(r => r.RoleName == "User").FirstOrDefault();
                    user.Roles.Add(role);
                    Context.Users.Add(user);
                    Context.SaveChanges();

                    var roles = user.Roles.Select(m => m.RoleName).ToArray();
                    CustomPrincipalSerializeModel serializeModel = new CustomPrincipalSerializeModel();
                    serializeModel.UserId = user.UserId;
                    serializeModel.UserName = user.Username;
                    serializeModel.roles = roles;

                    string userData = JsonConvert.SerializeObject(serializeModel);
                    FormsAuthenticationTicket authTicket = new FormsAuthenticationTicket(
                             1,
                             user.Username,
                             DateTime.Now,
                             DateTime.Now.AddMinutes(15),
                             false,
                             userData);

                    string encTicket = FormsAuthentication.Encrypt(authTicket);
                    HttpCookie faCookie = new HttpCookie(FormsAuthentication.FormsCookieName, encTicket);
                    Response.Cookies.Add(faCookie);

                    if (returnUrl == null)
                        return RedirectToAction("Index", "Books");
                    try
                    {
                        return Redirect(returnUrl);
                    }
                    catch
                    {
                        return RedirectToAction("Index", "Books");
                    }
                }
                catch
                {
                    ModelState.AddModelError("", "Cannot create user account");
                }
            }

            // If we got this far, something failed, redisplay form
            return View(model);
        }