/**
* Check parent validation
*
* @return boolean
*/
public function isValid()
{
if ($this->has('parent')) {
$this->parentId = (int) $this->get('parent')->getValue();
}
$condition = sprintf('parent_id = %d', $this->parentId);
if (!empty($this->documentId)) {
$condition .= sprintf(' AND id != %d', $this->documentId);
}
$inputFilter = $this->getInputFilter();
$validators = $inputFilter->get('document-url_key')->getValidatorChain()->getValidators();
foreach ($validators as $validator) {
if ($validator['instance'] instanceof Validator\Db\NoRecordExists) {
$validator['instance']->setExclude($condition);
}
}
return parent::isValid();
}
