public async Task <IActionResult> Edit(String title, String userCreator)
        {
            //TODO test
            var user = await _userManager.GetUserAsync(User);

            var manual = await _context.Manuals.FirstOrDefaultAsync(manuals =>
                                                                    manuals.UserCreator == userCreator &&
                                                                    manuals.Title == title);

            if (manual != null && user.UserName == userCreator && userCreator != null)
            {
                var manualViewModel = new EditManualViewModel
                {
                    Title            = manual.Title,
                    Content          = manual.Body,
                    ShortDescription = manual.ShortDescription,
                    Tags             = manual.Tags,
                    Themes           = manual.Themes
                };

                return(View(manualViewModel));
            }

            return(NotFound(title));
        }
        public async Task <IActionResult> Edit(EditManualViewModel model, string returnUrl = null)
        {
            ViewData["ReturnUrl"] = returnUrl;
            if (ModelState.IsValid)
            {
                var room = await _context.Manuals.FirstOrDefaultAsync(u =>
                                                                      u.Title == model.Title &&
                                                                      u.UserCreator == _userManager.GetUserName(HttpContext.User));

                //TODO BUG IF Title null fix please
                if (room != null && model.Title != null)
                {
                    var manual = new Manual
                    {
                        Themes           = model.Themes,
                        Tags             = model.Tags,
                        Body             = model.Content,
                        Title            = model.Title,
                        ShortDescription = model.ShortDescription,
                        CreatedDate      = DateTime.Now,
                        UserCreator      = _userManager.GetUserName(HttpContext.User),
                    };

                    var user = await _userManager.GetUserAsync(User);

                    _context.Manuals.Remove(room);

                    await _context.Manuals.AddAsync(manual);

                    await _context.SaveChangesAsync();

                    _logger.LogInformation($"User {manual.UserCreator} created a new manual.");
                    return(RedirectToAction("Index", "Manual"));
                }
                else
                {
                    ModelState.AddModelError("", "Sorry, you already created such a manual");
                }
            }

            return(View(model));
        }