使用“限制”和“包含”选项时，Sequelize 中出现“未知列”错误

Question

我有一个相对复杂的 Sequelize 查询，它导致“错误：ER_BAD_FIELD_ERROR：‘where 子句’中的未知列‘EventImage.EventId’”。我可以清楚地看到生成的 SQL 中的问题，但我不知道如何解决它。

该错误是准确的，因为在子查询中生成的 WHERE 子句引用了未包含在子查询中的列。据我所知，Sequelize 正在生成子查询作为实现行限制的一种方式。

我正在使用 sequelize@2.0.0-dev11、MySQL 5.5.35-0ubuntu0.13.10.2 和 Node v0.10.21。

这是基本代码：

var orm = require('../model');
var i = orm.Image;

i.findAll({
    where: where,
    offset: offset,
    limit: rows,
    order: orderby,
    include: [{
        model: orm.User,
        as: 'User'
    },
    {
        model: orm.Event,
        as: 'Events'
    },
    {
        model: orm.Comment,
        as: 'Comments'
    },
    {
        model: orm.Favorite,
        as: 'Favorites'
    }
    ]
})

where = "'Image'.'Category'='gallery' AND 'EventImage'.'EventId' in (1,2)"
offset = 0
rows = 12
orderby = "Image.createdAt DESC"

Sequelize 使用以下选项初始化：

下划线：假，
freezeTableName：真，
偏执：真，
syncOnAssociation：真，
字符集：'utf8'，
整理：'utf8_general_ci'，
时间戳：真

这是生成的 SQL：

SELECT 
    `Image` . *,
    `User`.`id` AS `User.id`,
    `User`.`LoginName` AS `User.LoginName`,
    `User`.`FirstName` AS `User.FirstName`,
    `User`.`LastName` AS `User.LastName`,
    `User`.`EmailAddress` AS `User.EmailAddress`,
    `User`.`ProfileImage` AS `User.ProfileImage`,
    `User`.`Password` AS `User.Password`,
    `User`.`Enabled` AS `User.Enabled`,
    `User`.`Expiry` AS `User.Expiry`,
    `User`.`createdAt` AS `User.createdAt`,
    `User`.`updatedAt` AS `User.updatedAt`,
    `User`.`deletedAt` AS `User.deletedAt`,
    `Events`.`id` AS `Events.id`,
    `Events`.`StartDate` AS `Events.StartDate`,
    `Events`.`EndDate` AS `Events.EndDate`,
    `Events`.`Title` AS `Events.Title`,
    `Events`.`Description` AS `Events.Description`,
    `Events`.`createdAt` AS `Events.createdAt`,
    `Events`.`updatedAt` AS `Events.updatedAt`,
    `Events`.`deletedAt` AS `Events.deletedAt`,
    `Events`.`UserId` AS `Events.UserId`,
    `Events`.`ImageId` AS `Events.ImageId`,
    `Events.EventImage`.`createdAt` AS `Events.EventImage.createdAt`,
    `Events.EventImage`.`updatedAt` AS `Events.EventImage.updatedAt`,
    `Events.EventImage`.`ImageId` AS `Events.EventImage.ImageId`,
    `Events.EventImage`.`EventId` AS `Events.EventImage.EventId`,
    `Comments`.`id` AS `Comments.id`,
    `Comments`.`Body` AS `Comments.Body`,
    `Comments`.`createdAt` AS `Comments.createdAt`,
    `Comments`.`updatedAt` AS `Comments.updatedAt`,
    `Comments`.`deletedAt` AS `Comments.deletedAt`,
    `Comments`.`UserId` AS `Comments.UserId`,
    `Comments`.`ImageId` AS `Comments.ImageId`,
    `Comments`.`EventId` AS `Comments.EventId`,
    `Favorites`.`id` AS `Favorites.id`,
    `Favorites`.`createdAt` AS `Favorites.createdAt`,
    `Favorites`.`updatedAt` AS `Favorites.updatedAt`,
    `Favorites`.`UserId` AS `Favorites.UserId`,
    `Favorites`.`ImageId` AS `Favorites.ImageId`
FROM
    (SELECT 
        `Image` . *
    FROM
        `Image` AS `Image`
    WHERE
        `Image`.`Category` = 'gallery'
            AND `EventImage`.`EventId` in (2)
            AND `Image`.`deletedAt` IS NULL
    LIMIT 12) AS `Image`
        LEFT OUTER JOIN
    `User` AS `User` ON `User`.`id` = `Image`.`UserId`
        LEFT OUTER JOIN
    `EventImage` AS `Events.EventImage` ON `Image`.`id` = `Events.EventImage`.`ImageId`
        LEFT OUTER JOIN
    `Event` AS `Events` ON `Events`.`id` = `Events.EventImage`.`EventId`
        LEFT OUTER JOIN
    `Comment` AS `Comments` ON `Image`.`id` = `Comments`.`ImageId`
        LEFT OUTER JOIN
    `Favorite` AS `Favorites` ON `Image`.`id` = `Favorites`.`ImageId`
ORDER BY Image.createdAt DESC;

这是相关表的 EER 图：

任何帮助，将不胜感激。

Answer 1

我不确定它是否仍然需要它，但对于那些遭受痛苦的人，请尝试添加 subQuery: false到查询中。来源。

如果不起作用，请尝试添加separate: true到子查询。来源。

希望它有帮助，GL。