public function getConditionAllowAccepting()
{
$conditions[] = array('or' => array(array($this->alias . '.publish_begin <=' => date('Y-m-d H:i:s')), array($this->alias . '.publish_begin' => null), array($this->alias . '.publish_begin' => '0000-00-00 00:00:00')));
$conditions[] = array('or' => array(array($this->alias . '.publish_end >=' => date('Y-m-d H:i:s')), array($this->alias . '.publish_end' => null), array($this->alias . '.publish_end' => '0000-00-00 00:00:00')));
return $conditions;
}