Sequelize：手动更新 updatedAt

Question

下面是我在 Hooks 中使用的代码来更新updatedAt两个对象的列：

hooks: {
                afterUpdate: (group, options, callback) => {
                    console.log("groudId " + groupId + " options " + options)
                },
                afterCreate: (member, options, callback) => {
                    return new Promise((resolve, reject) => {
                        sequelize.models.Group.findOne({
                            where: {
                                id: member.group_id
                            }
                        }).then((group) => {
                            if (group) {
                                var date = new Date();
                                console.log("BEFORE group.updatedAt " + group.updatedAt)
                                group.dataValues.updatedAt = new Date()
                                console.log("CHANGED group.updatedAt " + group.updatedAt)
                                group.save().then((Group) => {
                                    if (Group) {
                                        console.log("UPDATED Group.updatedAt " + Group.updatedAt)
                                        console.log("UPDATED group.updatedAt " + group.updatedAt)
                                        resolve(Group)
                                    } else {
                                        console.log("NO GROUP Found")
                                        return reject(group.id)
                                    }
                                }).catch((error) => {
                                    return (error)
                                })
                            } else {
                                return reject(id)
                            }
                        }).catch((error) => {
                            return (reject)
                        })
                    })
                }

控制台日志：

BEFORE group.updatedAt Fri Feb 17 2017 17:36:00 GMT-0800 (PST)
CHANGED group.updatedAt Tue Feb 28 2017 14:00:17 GMT-0800 (PST)
UPDATED Group.updatedAt Tue Feb 28 2017 14:00:17 GMT-0800 (PST)
UPDATED group.updatedAt Tue Feb 28 2017 14:00:17 GMT-0800 (PST)
BEFORE group.updatedAt Fri Feb 17 2017 17:36:00 GMT-0800 (PST)
CHANGED group.updatedAt Tue Feb 28 2017 14:00:19 GMT-0800 (PST)
UPDATED Group.updatedAt Tue Feb 28 2017 14:00:19 GMT-0800 (PST)
UPDATED group.updatedAt Tue Feb 28 2017 14:00:19 GMT-0800 (PST)

虽然我认为日志看起来是正确的，但为什么数据库中的实际对象没有更新为新updatedAt值？或者是否有更简单的方法来更新对象updatedAt列？

Answer 1

这对我有用

group.changed('updatedAt', true)

await group.update({
    updatedAt: new Date()
})

仅使用 updateAt = new Date 调用更新是不够的，您必须将列标记为已更改

Answer 2

以下工作适用于：

group.changed('updatedAt', true)

这会将updatedAt列标记为脏列，以便对其进行更新。