基本上,我试图根据它们的唯一对象ID(_id)更新我的Mongo数据库中的多个对象。 我尝试了以下方法,但它们都没有起作用:
var new_arr = [];
for (var i = 0; i < req.body.length; i++) {
// req.body is an array received from the POST request.
new_arr.push({"_id": new mongodb.ObjectID(req.body[i])})
}
console.log(new_arr);
// new_arr is not accepted since an object is expected.
job_applications.updateMany(
new_arr
,
{
$set: {"application_status": "rejected"}
}, function (err, results) {
console.log(results);
console.log(err);
if (!err) {
console.log('success with reject');
res.sendStatus(200);
}
}
);
我也尝试了以下方法,但没有成功。
var job_applications = req.app.locals.job_applications;
var new_arr = [];
for (var i = 0; i < req.body.length; i++) {
// req.body is an array of unique IDs (_id)
new_arr.push(new mongodb.ObjectID(req.body[i]))
}
var send_obj = {
"_id": new_arr
};
job_applications.updateMany(
send_obj
,
{
$set: {"application_status": "rejected"}
}, function (err, results) {
console.log(results);
console.log(err);
if (!err) {
console.log('success with reject');
res.sendStatus(200);
}
}
);
我发现解决这个问题的唯一方法是为每个对象发送多个updateOne()请求到MongoDB,但这样非常低效。我相信必须有更有效的解决方案来解决这个问题。任何帮助/指导将不胜感激。