/**
* Convert the given submission DAO to an array.
*
* @param Tracker_SubmissionDao $submissionDao submission DAO
* @return array associative array representation of the submission DAO
*/
protected function _toArray($submissionDao)
{
$submissionArray = array('_id' => $submissionDao->getKey(), '_type' => 'Tracker_Submission');
return array_merge($submissionArray, $submissionDao->toArray());
}
