public CompanyPurchase Update(CompanyPurchase companyPurchaseChanges)
        {
            var companyper = context.CompanyPurchases.Attach(companyPurchaseChanges);

            companyper.State = Microsoft.EntityFrameworkCore.EntityState.Modified;
            context.SaveChanges();
            return(companyPurchaseChanges);
        }
 public CompanyPurchase Add(CompanyPurchase companyPurchase)
 {
     context.CompanyPurchases.Add(companyPurchase);
     context.SaveChanges();
     return(companyPurchase);
 }