在“字段列表"中续写未知列“*.createdAt" [英] Sequelize Unknown column '*.createdAt' in 'field list'

问题描述

我在字段列表"中收到一个未知列userDetails.createdAt"尝试通过关联获取时.

I'm getting a Unknown column 'userDetails.createdAt' in 'field list' When trying to fetch with association.

在没有关联的情况下使用 findAll 工作正常.

Using findAll without association works fine.

我的代码如下:

var userDetails = sequelize.define('userDetails', {
    userId :Sequelize.INTEGER,
    firstName : Sequelize.STRING,
    lastName : Sequelize.STRING,
    birthday : Sequelize.DATE
});

var user = sequelize.define('user', {
    email: Sequelize.STRING,
    password: Sequelize.STRING
});

user.hasOne(userDetails, {foreignKey: 'userId'});

user.findAll({include: [userDetails] }).success(function(user) {
    console.log(user)
});

推荐答案

我认为错误是您在 sequelize 中启用了时间戳，但您在数据库中的实际表定义不包含时间戳列.

I think the error is that you have timestamps enabled in sequelize, but your actual table definitions in the DB do not contain a timestamp column.

当您执行 user.find 时，它只会执行 SELECT user.*，它只获取您实际拥有的列.但是当你加入时，加入的表的每一列都会被别名，这会创建以下查询:

When you do user.find it will just do SELECT user.*, which only takes the columns you actually have. But when you join, each column of the joined table will be aliased, which creates the following query:

SELECT `users`.*, `userDetails`.`userId` AS `userDetails.userId`,`userDetails`.`firstName` AS `userDetails.firstName`,`userDetails`.`lastName` AS `userDetails.lastName`, `userDetails`.`birthday` AS `userDetails.birthday`, `userDetails`.`id` AS `userDetails.id`, `userDetails`.`createdAt` AS `userDetails.createdAt`, `userDetails`.`updatedAt` AS `userDetails.updatedAt` FROM `users` LEFT OUTER JOIN `userDetails` AS `userDetails` ON `users`.`id` = `userDetails`.`userId`;

修复方法是禁用 userDetails 模型的时间戳:

The fix would be to disable timestamps for either the userDetails model:

var userDetails = sequelize.define('userDetails', {
    userId :Sequelize.INTEGER,
    firstName : Sequelize.STRING,
    lastName : Sequelize.STRING,
    birthday : Sequelize.DATE
}, {
    timestamps: false
});

或所有型号:

var sequelize = new Sequelize('sequelize_test', 'root', null, {
    host: "127.0.0.1",
    dialect: 'mysql',
    define: {
        timestamps: false
    }
});

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