Question

我编写了一个SQL查询，并尝试将其调整为Sequelize，但无法弄清楚如何在同一个表上创建关联。这是SQL：

"\n'OPHT'\n'GALE'\n'CEMP'\n'TKAI'\n'ANTH'\n'ADPT'\n\n\n'CYTR'\n'NVAX'\n'MRTX'\n'IMGN'\n'OVAS'\n'AVGR'\n'DVAX'\n'INFI'\n'TNDM'\n'FNBC'\n\n\'CVRS'\n'CLDX'\n'CIE'\n'ARWR'\n'CYH'\n'RGLS'\n'VSLR'\n'IMDZ'\n'ITCI'\n\n\n\n\n'MDCA'

以下是模型定义：

SELECT t1.*
FROM `configurations` t1
INNER JOIN
(
    SELECT max(configuration_start) maxConfigStart, pb_id
    FROM `configurations`
    WHERE
        active = 1
        AND DATE(configuration_start) <= DATE(NOW())
    GROUP BY `pb_id`
) t2
  ON t1.`pb_id` = t2.`pb_id`
  AND t1.`configuration_start` = t2.`maxConfigStart`
WHERE t1.`active` = 1
ORDER BY t1.`configuration_start` DESC

非常感谢任何人提供的任何帮助。基本上我正在尝试为每个configurations = sequelize.define 'configurations', { id: type: Sequelize.INTEGER primaryKey: true autoIncrement: true configuration_name: Sequelize.STRING configuration_start: Sequelize.DATE configuration_end: Sequelize.DATE created: Sequelize.DATE updated: Sequelize.DATE }, { timestamps: false, scopes: { currentConfigTimes: { attributes: ['pb_id', [sequelize.fn('max', sequelize.col('configuration_start')), 'configuration_start']] where: active: 1 configuration_start: lte: new Date() group: ['pb_id'] }, currentConfigIds: { attributes: ['pb_id', 'configuration_start', 'id'] where: active: 1 configuration_start: lte: new Date() order: [['configuration_start', 'DESC']] } } }获取最新的过去配置。也许还有更好的方法吗？

Answer 1

目前看来，使用Sequelize实际上是不可能的。在花了很多时间用他们的文档试图理解这样做的最佳方式后，我找到this Github issue试图解决完全相同的问题。最好的解决方案是在此时使用原始查询。

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1 个答案: