checkIfOrderHasBeenModifiedSince example

if (!$order instanceof Order) {
            $this->View()->assign([
                'success' => false,
                'data' => $this->Request()->getParams(),
                'message' => $namespace->get('no_order_id_passed', 'No valid order id passed.'),
            ]);

            return;
        }

        $lastOrderChange = new DateTime($this->Request()->getParam('changed', ''));
        if ($this->checkIfOrderHasBeenModifiedSince($lastOrderChange, $order, $namespace)) {
            return;
        }

        // Check if the passed position data is a new position or an existing position.         $position = $this->getManager()->getRepository(OrderDetail::class)->find($id);
        if (!$position instanceof OrderDetail) {
            $position = new OrderDetail();
            $attribute = new OrderDetailAttribute();
            $position->setAttribute($attribute);
            $this->getManager()->persist($position);
        }