/**
* @return \yii\db\ActiveQuery
*/
public function getHotel()
{
return $this->hasOne(Hotel::className(), ['id' => 'hotel_id']);
}
/**
* @return \yii\db\ActiveQuery
*/
public function getHotels()
{
return $this->hasMany(Hotel::className(), ['city_id' => 'id']);
}