public IActionResult Post([FromBody] ComparisonByPrice item)
        {
            if (item == null)
            {
                return(BadRequest());
            }

            item.Id = _context.ComparisonsByPrice.Count() + 1;
            _context.ComparisonsByPrice.Add(item);
            _context.SaveChanges();

            return(CreatedAtRoute("GetBrand", new { id = item.Id }, item));
        }
        public IActionResult Update(long id, [FromBody] ComparisonByPrice item)
        {
            if (item == null || item.Id != id)
            {
                return(BadRequest());
            }

            var comp = _context.ComparisonsByPrice.FirstOrDefault(t => t.Id == id);

            if (comp == null)
            {
                return(NotFound());
            }

            comp.BrandId                   = item.BrandId;
            comp.CompetitorBrandId         = item.CompetitorBrandId;
            comp.CategoryTreeId            = item.CategoryTreeId;
            comp.AveragePrice              = item.AveragePrice;
            comp.PriceCompetitivenessIndex = item.PriceCompetitivenessIndex;

            _context.ComparisonsByPrice.Update(comp);
            _context.SaveChanges();
            return(new NoContentResult());
        }