Laravel - Relationships - Morph To Deferred Count Loading

Let's assume we have already retrieved a set of ActivityFeed models and now we would like to load the nested relationship counts for the various parentable models associated with the activity feeds. You may use the loadMorphCount method to accomplish this:

    $activities = ActivityFeed::with('parentable')->get();
    $activities->loadMorphCount('parentable', [
        Photo::class => ['tags'],
        Post::class => ['comments'],