public async Task <IActionResult> UpdateOrder(Order_Product_Link opl)
        {
            db.Entry(opl).State = EntityState.Modified;
            await db.SaveChangesAsync();

            return(NoContent());
        }
        public async Task <ActionResult <Order_Product_Link> > Create([FromBody] Order_Product_Link opl)
        {
            db.elOrder_Product_Links.Add(opl);
            await db.SaveChangesAsync();

            return(CreatedAtAction(nameof(GetOrder_Product_Link), new { id = opl.Id }, opl));
        }