Order History and state

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Hi everyone,

I'm developing a PHP script to change order status and order history. This code works fine in PS 1.6, but not in 1.7. This is the error in log file:

Quote

Argument 1 passed to PrestaShop\PrestaShop\Core\Cart\Calculator::__construct()

My code:
 

Quote

 

$objOrder = new Order($this->id_order);

                            $history = new OrderHistory();

                            $history->id_order = (int)$objOrder->id;

                            $history->changeIdOrderState($this->update_to_state, (int)($objOrder->id));

                            $history->addWithemail(true); ---> Al llegar aquí muestra el error y detiene todo el proceso

 

All the values (parameters) are correct. I had tried to copy and paste the code from another module with the same functionality, but still does not work.

 

Thanks.