javascript - 如果 key 存在，如何更新 - sequelize

Question

如果请求的键存在，我想更新我的数据库。

这是我的更新操作:

      shopsModel.Shop.update({
        name: req.body.name,
        province: req.body.province,
        city: req.body.city,
        address: req.body.address,
        username: req.body.username,
        type: req.body.type,
        ...

例如，如果 req.body.name 不为空，我想更新 name 列。 执行此操作的最短方法是什么？

Answer 1

给你:

let request = {
        name: req.body.name,
        province: req.body.province,
        city: req.body.city,
        address: req.body.address,
        username: req.body.username,
        type: req.body.type,
        ...
}

// With the help of Lodash
request = _.pickBy(request, _.identity); // <--- Will remove empty | null | undefined

或者您可以使用 Remove blank attributes from an Object in Javascript ，并使用该值更新模型

然后只是简单地:

shopsModel.Shop.update(request,...);

NOTE :

As I can see that key name and req.body names are almost same , so you can directly use

let request = req.body;