Question

我试图通过包含 - ＆gt;在关联的表上进行GroupBy条件，但我收到以下错误...

错误：SQLSTATE [42000]：语法错误或访问冲突：1064 SQL语法中有错误;检查与您的MySQL服务器版本相对应的手册，以便在＆＃39; group =＆＃39; BrandUsers.user_id＆＃39;附近使用正确的语法。 AND BrandUsers.brand_id in（1,2,3,4,5,6））＆＃39;在第1行

使用以下查询

SELECT
    BrandUsers.id AS `BrandUsers__id`,
    BrandUsers.user_id AS `BrandUsers__user_id`,
    BrandUsers.brand_id AS `BrandUsers__brand_id`,
    Users.id AS `Users__id`,
    Users.username AS `Users__username`,
    Users.email AS `Users__email`,
    Users.password AS `Users__password`,
    Users.first_name AS `Users__first_name`,
    Users.last_name AS `Users__last_name`,
    Users.token AS `Users__token`,
    Users.token_expires AS `Users__token_expires`,
    Users.api_token AS `Users__api_token`,
    Users.activation_date AS `Users__activation_date`,
    Users.secret AS `Users__secret`,
    Users.secret_verified AS `Users__secret_verified`,
    Users.tos_date AS `Users__tos_date`,
    Users.active AS `Users__active`,
    Users.is_superuser AS `Users__is_superuser`,
    Users.role AS `Users__role`,
    Users.created AS `Users__created`,
    Users.modified AS `Users__modified` 
FROM
    brand_users BrandUsers 
    INNER JOIN
        users Users 
        ON Users.id = 
        (
            BrandUsers.user_id
        )
WHERE
    (
        group = :c0 
        AND BrandUsers.brand_id in 
        (
            :c1,
            :c2,
            :c3,
            :c4,
            :c5,
            :c6
        )
    )

我看过以下链接，但上述错误仍然存在

这是我的代码

$this->paginate = [
    'contain' => [
        'BrandUsers' => [
            'conditions' => [
                'group' => 'BrandUsers.user_id'
            ]
        ],
        'BrandUsers.Users'
    ]
];

$brands = $this->paginate(
    $this->Brands
        ->find('all')
        ->where(['Brands.user_id' => $this->Auth->user('id')])
);

Answer 1

正如你所链接的问题的答案/评论中所提到的，对于包含没有group选项，对于CakePHP 2.x和3.x都是如此，如果有的话你将它放错了的一个选项，因为你已经将它嵌套在conditions选项中，因此它被编译成查询WHERE子句。

如果您需要动态修改用于获取包含的查询，那么您可以例如传递其他查询构建器方法中已知的可调用对象：

'BrandUsers' => function (\Cake\ORM\Query $query) {
    return $query->group('BrandUsers.user_id');
}

或使用finder选项指向相应修改传递的查询的查找程序：

'BrandUsers' => [
    'finder' => 'groupedByUser'
]

应该注意的是，分组仅适用于HasMany和BelongsToMany关联，因为它们未加入主/父查询。

另见

的 Cookbook > Database Access & ORM > Query Builder > Passing Conditions to Contain

的 Cookbook > Database Access & ORM > Retrieving Data & Results Sets > Custom Finder Methods

CakePHP 3.x包含GroupBy

1 个答案: