Question

这里我有一个带密码的事件字段。我需要通过download_count DESC订购所有密码。所以我试过下面的代码。它没有给我任何错误，但是desc无法正常工作。

 $event = $this->Events->get($id, [
                  'contain' => [
                      'EventPasswordAll.Passwords' => [
                          'queryBuilder' => function (Query $q) {
                              return $q->order(['download_count' => 'DESC']);
                          }
                      ]
                  ]
             ]);

我也试过

 return $q->order(['Passwords.download_count' => 'DESC']);

我收到了查询

SELECT EventPasswordAll.id AS `EventPasswordAll__id`, EventPasswordAll.event_id AS `EventPasswordAll__event_id`, EventPasswordAll.password_id AS `EventPasswordAll__password_id`, Passwords.id AS `Passwords__id`, Passwords.name AS `Passwords__name`, Passwords.collection_id AS `Passwords__collection_id`, Passwords.photo_count AS `Passwords__photo_count`, Passwords.download_count AS `Passwords__download_count`, Passwords.created AS `Passwords__created`, Passwords.expires_at AS `Passwords__expires_at`, Passwords.recommended AS `Passwords__recommended`, Passwords.accepted AS `Passwords__accepted`, Passwords.user_id AS `Passwords__user_id` FROM event_password_all EventPasswordAll INNER JOIN passwords Passwords ON Passwords.id = (EventPasswordAll.password_id) WHERE EventPasswordAll.event_id in (14)

如何在queryBuilder中为关联数据添加顺序？

Answer 1

使用EventPasswordAll belongsTo Passwords的关联，将通过连接检索passwords表记录，如查询中所示。在这种情况下，没有Passwords的查询，因此不会调用查询构建器。

您必须设置EventPasswordAll查询构建器的顺序，例如

$event = $this->Events->get($id, [
    'contain' => [
        'EventPasswordAll' => [
            'queryBuilder' => function (Query $q) {
                return $q->order(['Passwords.download_count' => 'DESC']);
            },
            'Passwords'
        ]
    ]
]);

Cakephp 3：如何在queryBuilder中为关联数据添加顺序？

1 个答案: