public async Task <IActionResult> DeleteOrder([FromRoute] int id)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
// Retrieve order with details
var order = await _context.Orders
.Include(m => m.OrderDetails)
.SingleOrDefaultAsync(m => m.OrderId == id);
if (order == null)
{
return(NotFound());
}
// Set tracking state to deleted
order.TrackingState = TrackingState.Deleted;
// Detach object graph
_context.DetachEntities(order);
// Apply changes to context
_context.ApplyChanges(order);
// Persist changes
await _context.SaveChangesAsync();
return(Ok());
}