public async Task <ActionResult <PurchasingPower> > PostPurchasingPower(PurchasingPower purchasingPower)
        {
            _context.PurchasingPower.Add(purchasingPower);
            await _context.SaveChangesAsync();

            return(CreatedAtAction("GetPurchasingPower", new { id = purchasingPower.Id }, purchasingPower));
        }
        public async Task <IActionResult> PutPurchasingPower(int id, PurchasingPower purchasingPower)
        {
            if (id != purchasingPower.Id)
            {
                return(BadRequest());
            }

            _context.Entry(purchasingPower).State = EntityState.Modified;

            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!PurchasingPowerExists(id))
                {
                    return(NotFound());
                }
                else
                {
                    throw;
                }
            }

            return(NoContent());
        }