public function save()
 {
     if (!$this->getMailKey()) {
         $this->setMailKey(Filesystem::readRandomCharacters(20));
     }
     return parent::save();
 }
 protected function getConfiguration()
 {
     return array(self::CONFIG_AUX_PHID => true, self::CONFIG_COLUMN_SCHEMA => array('name' => 'text', 'alias' => 'sort64?', 'longURL' => 'text', 'description' => 'text'), self::CONFIG_KEY_SCHEMA => array('key_instance' => array('columns' => array('alias'), 'unique' => true), 'key_author' => array('columns' => array('authorPHID')))) + parent::getConfiguration();
 }