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，但是您可以使用此逻辑。 有关更多详细信息，请访问官方页面。

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

并添加与flight_schedule模型的关系：

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