/**
* Add filter by specified recurring payment id(s)
*
* @param \Magento\Framework\Model\Resource\Db\Collection\AbstractCollection $collection
* @param array|int $ids
* @return \Magento\Sales\Model\Resource\Order\Collection
*/
public function byIds($collection, $ids)
{
$ids = is_array($ids) ? $ids : array($ids);
$collection->getSelect()->joinInner(array('rpo' => $collection->getTable('recurring_payment_order')), 'main_table.entity_id = rpo.order_id', array())->where('rpo.payment_id IN(?)', $ids);
return $collection;
}
