Pass the options object when fetching related data

[daviddutch]

Introduction

The options object is passed a bit everywhere and isn't passed to relations. By passing the options object into relations, this opens countless possibilities, such as filtering data according to logged-in user rights directly into the relation.

Motivation

Our main use case is filtering related data according to the user rights. To be able to do this, we need to access a context object to know who is the logged-in user. Currently, relations can't be "dynamic" and adapt to a tenant or other contextual data.

Proposed solution

By simply passing the options object to the related fetching, we can implement something like this:

topics: function (options) {
    return this
        .hasMany('Topic')
        .query(qb => {
            qb
                .whereExists(MeetingDbQueries.filterByTopicsAccess(options.context.user.id));
        });
}

Current PR Issues

I didn't encounter any issues up to now.

Alternatives considered

I've tried many ways to access some data from the relation function unsuccessfully.

Thank you for considering this PR.