public function search()
{
// Warning: Please modify the following code to remove attributes that
// should not be searched.
$criteria = new CDbCriteria();
$criteria->compare('page_id', $this->page_id);
$criteria->compare('block_id', $this->block_id);
$criteria->compare('block_order', $this->block_order);
$criteria->compare('status', $this->status);
return new CActiveDataProvider($this, array('criteria' => $criteria));
}