public function search()
{
// Warning: Please modify the following code to remove attributes that
// should not be searched.
$criteria = new \CDbCriteria();
$criteria->compare('id', $this->id, true);
$criteria->compare('event_id', $this->event_id, true);
$criteria->compare('left_sphere', $this->left_sphere);
$criteria->compare('left_cylinder', $this->left_cylinder);
$criteria->compare('left_axis', $this->left_axis);
$criteria->compare('left_type_id', $this->left_type_id);
$criteria->compare('left_type_other', $this->left_type_other);
$criteria->compare('right_sphere', $this->right_sphere);
$criteria->compare('right_cylinder', $this->right_cylinder);
$criteria->compare('right_axis', $this->right_axis);
$criteria->compare('right_type_id', $this->right_type_id);
$criteria->compare('right_type_other', $this->right_type_other);
return new \CActiveDataProvider(get_class($this), array('criteria' => $criteria));
}