Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

getAndCountAssociations() similar to findAndCountAll()

See original GitHub issue

Hi,

following situation: I have a User model and a Follower n:m association

User.belongsToMany(User, {
    as: 'Followings',
    foreignKey: 'follower_id',
    through: Follow
});

User.belongsToMany(User, {
    as: 'Followers',
    foreignKey: 'user_id',
    through: Follow
});

Now I want to get the total number of followers and at the same time the data for some of the followers: user.getFollowers({limit: 24, offset: 48});

Works fine, but currently I need to make a separate call user.countFollowers() to also get the total number of followers.

Maybe I just haven’t seen it in the docs but if not: would it be possible to add a convenience method to count and receive all associations? Something like user.getAndCountFollowers()

Currently my workaround(?) looks like this:

let result = {count: 0, rows: []};
User.findById(req.params.id)
.then((user) => {
    return user.countFollowers()
    .then((count) => {
        result.count = count;
        user.getFollowers()
        .then((followers) => {
            result.rows = followers;
            return res.json(result);
        })
    })
})
.catch((err) => {
    console.error(err.stack);
    return res.status(500).json(err);
});

And I was wondering if there isn’t an easier way to do just that. And if there is no such way, wouldn’t it be a nice feature to add? 😉