MongoDB - 按插入顺序（日期）子值搜索

Question

认为你可以在MongoDB上给我你的帮助。

我的计划是例如：

Array
(
    [_id] => MongoId Object
    (
        [$id] => 538339ef5b17848a488b7e35
    )
    [group_name] => 'group 1'
    [activity] => Array
    (
        [open] => Array
        (
            [company] => Array
            (
                [0] => Array
                (
                    [name] => company 1
                    [date] => MongoDate Object
                    (
                        [sec] => 1400081160
                        [usec] => 0
                    )
                ),
                [0] => Array
                (
                    [name] => company 2
                    [date] => MongoDate Object
                    (
                        [sec] => 1500081160
                        [usec] => 0
                    )
                ),
                [0] => Array
                (
                    [name] => company 3
                    [date] => MongoDate Object
                    (
                        [sec] => 1600081160
                        [usec] => 0
                    )
                ),
                [0] => Array
                (
                    [name] => company 4
                    [date] => MongoDate Object
                    (
                        [sec] => 1700081160
                        [usec] => 0
                    )
                )
            )
        )
    )
)
Array
(
    [_id] => MongoId Object
    (
        [$id] => 538339ef5b178424498b7e34
    )
    [group_name] => 'group 2'
    [activity] => Array
    (
        [open] => Array
        (
            [company] => Array
            (
                [0] => Array
                (
                    [name] => company 3
                    [date] => MongoDate Object
                    (
                        [sec] => 1300081160
                        [usec] => 0
                    )
                ),
                [0] => Array
                (
                    [name] => company 1
                    [date] => MongoDate Object
                    (
                        [sec] => 1600081160
                        [usec] => 0
                    )
                ),
                [0] => Array
                (
                    [name] => company 2
                    [date] => MongoDate Object
                    (
                        [sec] => 1800081160
                        [usec] => 0
                    )
                ),
                [0] => Array
                (
                    [name] => company 4
                    [date] => MongoDate Object
                    (
                        [sec] => 1900081160
                        [usec] => 0
                    )
                )
            )
        )
    )
)

事实上，只有当DATE的此类下单是“公司1，公司2，公司3”时，我才会填写“groupname”。 所以通常它应该在上面的例子中仅显示“Group 1”，因为订单是按照要求，而在“Group 2”订单中以“Business 3，然后是Company 1 ...”开头。

-

例如，如果我看起来像这样：

[activity.open.company] => Array
(
    [$in] => Array
        (
            [0] => company 1
            [1] => company 2
            [2] => company 3
        )

)

这将突出我的整个世界，而不仅仅是“第一组”

-

真诚地感谢您的帮助！

PS：对不起我的英语，我是法国人。

Answer 1

当您使用$in子句进行查询时，它基本上变为和$or对应给定数组的项目。您编写的的查询与列出的两个文档相匹配，因为它们中至少包含公司2。