如何将sql查询更改为yii2

Question

如何将以下sql查询更改为yii2。

SELECT 
    a.id, a.name_of_flight, a.time_of_flight, (no_of_passenger-b.cnt) as avail 
FROM 
    flight_schedule a 
LEFT JOIN 
    (SELECT flight_time, COUNT(id) AS cnt FROM book_eticket WHERE flight_date='2016-06-01' GROUP BY flight_time) b 
ON a.id = b.flight_time 

Answer 1

我不确定，但你可以使用这个逻辑。 欲了解更多详情请访问official页面。

flight_schedule::find() 
    ->select(['id', 'name_of_flight', ' time_of_flight']) 
    ->distinct() 
    ->joinWith('bookEticket') 
    ->all(); 

并添加有关flight_schedule型号：

public function getBookEticket() 
{ 
    $this->hasOne(book_eticket::className(), ['id' => 'flight_time']); 
}