fixx isuse in call

odex25_purchase/odex25_purchase_coc/models/models.py

@@ -56,7 +56,7 @@ class POCustom(models.Model):
         for rec in self:
             if rec and rec.coc_ids.filtered(lambda coc: coc.coc_stage == 'before_bill' and coc.state != 'approve'):
                 raise ValidationError(_("Sorry You cannot Create Bill untill CoC Created and Approved."))
-        return super(POCustom, rec).action_create_invoice()
+        return super(POCustom, self).action_create_invoice()
 
 class PurchaseOrderLine(models.Model):
     _inherit = 'purchase.order.line'