在Mongoose中一次更新多个文档的最佳方法

Question

I would like to update multiple couments by condtion in my nodejs backend using Mongoose

Trying to update seen notification for all users in the list.

My current method which works but involves lots of calls

  await notificationIDs.forEach(async noticeID => {
        await User.updateOne(
          { "notifications._id": noticeID },
          { $set: { "notifications.$.seen": true } }
        );
      });

Would like to update in one call

Answer 1

To do this with one query, you can use updateMany() method with $in operator:

await User.updateMany(
  { "notifications._id": {$in: notificationIDs} },
  { $set: { "notifications.$.seen": true } }
);

Answer 2

you can update it using :

 await User.update({ "notifications._id": {$in: notificationIDs} },
                       { $set: { "notifications.$.seen": true } },
                       {multi: true});

Answer 3

To do this with single query use db.collection.updateMany().

 return new Promise((resolve, reject) => {
    UserModel.updateMany({ "notifications._id": notificationIDs }, {$set: { "notifications.$.seen": true } }, { upsert: true, new: true }).exec((err, response) => {
        if (err) {
            reject({ status: 500, message: 'Internal Server Error', data: err });
        } else {
            resolve({ status: 200, message: 'Notification Updated Successfully.' });
        }
    });
});