/**
* Constructor
*/
protected function __construct()
{
$this->app = App::getInstance('zoo');
$this->_db = JFactory::getDbo();
$this->_dbHelper = $this->app->database;
$this->_jbtables = $this->app->jbtables;
$this->_jbcache = $this->app->jbcache;
$this->_dbNow = $this->_db->quote($this->app->date->create()->toSql());
$this->_dbNull = $this->_db->quote($this->_db->getNullDate());
}
/**
* Returns database null date format
*
* @return string Quoted null date string
*/
public function getNullDate()
{
return $this->db->getNullDate();
}