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Customize invoice number format (YYYYMMDDXXXX)


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If I want to modify OrderCore class I should have to put inside /override/classe/order directory my custom Order Class that extends OrderCore class but I can't find which methodes I've to extend.


I would like generate invoice number like this : YYYYMMDD0001, YYYYMMDD0002, YYYYMMDD0003 etc...


In Order.php I've found the method below, Is the method that I have to extend ? Or is there another methods to modify ?

public static function getLastInvoiceNumber(){
return Db::getInstance()->getValue('
SELECT MAX(`number`)
FROM `'._DB_PREFIX_.'order_invoice`

Please, someone could help me ?


Thank you.


Best regards,


Edited by zefri (see edit history)

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