public function getInputFilterSpecification()
 {
     $filters = array('filename' => array('filters' => array('rename' => array('options' => array('target' => 'public/files/videoattachment/')))));
     $filters = array_replace_recursive(parent::getInputFilterSpecification(), $filters);
     return $filters;
 }
 public function getInputFilterSpecification()
 {
     $filters = array('filename' => array('filters' => array('rename' => array('options' => array('target' => 'public/files/imageattachment/'))), 'validators' => array(array('name' => 'Zend\\Validator\\File\\Extension', 'options' => array('extension' => array('gif', 'png', 'jpg', 'jpeg'))), array('name' => 'Zend\\Validator\\File\\IsImage'))));
     $filters = array_replace_recursive(parent::getInputFilterSpecification(), $filters);
     return $filters;
 }