public async Task <IActionResult> Get(int id)
        {
            try
            {
                if (id > 0)
                {
                    Category category = await _categoriesManager.GetCategory(id);

                    return(Ok(category));
                }
                else
                {
                    return(NoContent());
                }
            }
            catch (NotFoundException ex)
            {
                return(NotFound());
            }
            catch (CouldNotPerformOperationException ex)
            {
                return(BadRequest(ex));
            }
        }
        public IActionResult GetCategory(int id)
        {
            var category = _categoriesManager.GetCategory(id);

            return(category != null ? (IActionResult) new ObjectResult(category) : new NotFoundResult());
        }