// POST: odata/OrderPayments
        public async Task <IHttpActionResult> Post(order_payments order_payments)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            db.order_payments.Add(order_payments);

            try
            {
                await db.SaveChangesAsync();
            }
            catch (DbUpdateException)
            {
                if (order_paymentsExists(order_payments.order_payment_id))
                {
                    return(Conflict());
                }
                else
                {
                    throw;
                }
            }

            return(Created(order_payments));
        }
        // DELETE: odata/OrderPayments(5)
        public async Task <IHttpActionResult> Delete([FromODataUri] int key)
        {
            order_payments order_payments = await db.order_payments.FindAsync(key);

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

            db.order_payments.Remove(order_payments);
            await db.SaveChangesAsync();

            return(StatusCode(HttpStatusCode.NoContent));
        }
        // PUT: odata/OrderPayments(5)
        public async Task <IHttpActionResult> Put([FromODataUri] int key, Delta <order_payments> patch)
        {
            Validate(patch.GetEntity());

            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            order_payments order_payments = await db.order_payments.FindAsync(key);

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

            patch.Put(order_payments);

            try
            {
                await db.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!order_paymentsExists(key))
                {
                    return(NotFound());
                }
                else
                {
                    throw;
                }
            }

            return(Updated(order_payments));
        }