NodeJs Mongoose - remove one id from array in document

Question

I have an array in my model document. I would like to remove one id in that array. Is this possible?

This is what I tried.

module.exports.RemoveFavourite = async (req, res, next) => {
  try {
    const userId = req.params.user;
    const favouriteId = req.params.event;

    const removeFavourite = await User.updateOne(
      { _id: userId },
      { $pull: { favourites: favouriteId } }
    );

    res.status(200).json(removeFavourite);
  } catch {
    res.status('404').json('error');
  }
};

i think same here. mongoose-delete-array-element-in-document-and-save — BKs0Lk1
– BKs0Lk1, Commented Jan 9, 2023 at 9:59
The query looks good so maybe you have to parse favouriteId to ObjectId. By the way you can try to do a find query to ensure data is ok. If aquery like this works properly, the update should too. — J.F.
– J.F., Commented Jan 9, 2023 at 10:02

Mandeep · Accepted Answer · 2023-01-09 10:57:41Z

1

convert favouriteId string to ObjectId

const mongoose = require("mongoose")

module.exports.RemoveFavourite = async (req, res, next) => {
  try {
    const userId = req.params.user;
    const favouriteId = req.params.event;

    const removeFavourite = await User.updateOne(
      { _id: userId },
      { $pull: { favourites: mongoose.Type.ObjectId(favouriteId) } }
    );

    res.status(200).json(removeFavourite);
  } catch {
    res.status('404').json('error');
  }
};

answered Jan 9, 2023 at 10:57

Mandeep

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