public function getCity() { return $this->hasOne(City::className(), ['id' => 'city_id']); }
public function getCities() { return $this->hasMany(City::className(), ['id' => 'city_id'])->viaTable('country_city', ['country_id' => 'id']); }
/** * @return \yii\db\ActiveQuery */ public function getCities() { return $this->hasMany(City::className(), ['region_id' => 'id'])->orderBy(['name' => SORT_ASC]); }