/**
* Get all sections belongs to the same ancestor.
* @return yii\db\ActiveQueryInterface
*/
public function getDescendentSections()
{
return $this->hasMany(Sections::className(), ['ancestor' => 'id']);
}
/**
* @return \yii\db\ActiveQuery
*/
public function getSection()
{
return $this->hasOne(Sections::className(), ['recid' => 'sectionid']);
}