使用函数时在 Sequelize 中分组

Question

我想按函数返回的值分组，如下所示：

    let noticesOpened = NoticeOpened.aggregate(
        "id",
        "COUNT", {
            plain: false,
            where: noticeWhere,
            group: [sequelize.fn("date_trunc", "day", sequelize.col("created_at"))],
            order: [
                ["created_at", "ASC"]
            ],
        });
    return noticesOpened;

当我尝试这个查询时，我得到：

SequelizeDatabaseError: column "notice_opened_tbl.created_at" must appear in the GROUP BY clause or be used in an aggregate function

有没有办法对返回的分组值进行升序？

Answer 1

您需要根据 group 子句中的函数结果进行排序，例如：

    let noticesOpened = NoticeOpened.aggregate(
        "id",
        "COUNT", {
            plain: false,
            where: noticeWhere,
            group: [sequelize.fn("date_trunc", "day", sequelize.col("created_at"))],
            order: [
                [sequelize.fn("date_trunc", "day", sequelize.col("created_at")), "ASC"]
            ],
        });
    return noticesOpened;

我想记住你可以使用 sequelize 别名来使这更容易，但没有语法。