public async Task <IActionResult> EditUser(EditUserViewModel model, List <string> roles)
        {
            if (ModelState.IsValid)
            {
                Worker worker = await _userManager.FindByIdAsync(model.Id);

                if (worker != null)
                {
                    worker.Family   = model.Family;
                    worker.Name     = model.Name;
                    worker.Otch     = model.Otch;
                    worker.Post     = model.Post;
                    worker.SectorId = model.Sector;

                    var result = await _userManager.UpdateAsync(worker);

                    if (result.Succeeded)
                    {
                        var userRoles = await _userManager.GetRolesAsync(worker);

                        var addedRoles   = roles.Except(userRoles);
                        var removedRoles = userRoles.Except(roles);
                        await _userManager.AddToRolesAsync(worker, addedRoles);

                        await _userManager.RemoveFromRolesAsync(worker, removedRoles);

                        return(RedirectToAction("Index"));
                    }
                    else
                    {
                        foreach (var error in result.Errors)
                        {
                            ModelState.AddModelError("", error.Description);
                        }

                        model.FillLists(db);
                        model.AllRoles  = _roleManager.Roles.ToList();
                        model.UserRoles = await _userManager.GetRolesAsync(worker);
                    }
                }
                else
                {
                    return(NotFound());
                }
            }
            return(View(model));
        }