public async Task <IActionResult> AddModerator(int id, [FromBody] string text) { if (String.IsNullOrEmpty(text)) { return(BadRequest("Field can not be empty.")); } var user = await _accountService.GetUserByUsername(text); if (user == null) { return(NotFound("User is not found.")); } if (user == await _accountService.GetCurrentUser(HttpContext.User)) { return(BadRequest("You already have absolute rights for this blog.")); } if (!_blogService.BlogExists(id)) { return(NotFound()); } if (await _blogService.GetBlogModeratorById(id, user.Id) != null) { return(BadRequest("This user is already moderator.")); } await _blogService.AddBlogModerator(id, user); return(PartialView("~/Views/Blog/_ModeratorsPartial.cshtml", await _blogService.GetAllBlogModerators(id))); }