Laravel Eloquent With() With()

Question

How do I go about using multiple Eloquent With()'s?

PortalPlaylistElement Model

class PortalPlaylistElement extends Model
{
    public $primaryKey = 'code';
    public $incrementing = false;
    public $timestamps = false;

    public function AirtimePlaylists()
    {
        return $this->hasOne('App\AirtimePlaylist','id','playlist_id');
    }
}

AirtimePlaylistContent Model

class AirtimePlaylistContent extends Model
{
    protected $table = 'cc_playlistcontents';
}

AirtimePlaylistModel

class AirtimePlaylist extends Model
{
    protected $table = 'cc_playlist';

    public function PortalPlaylistElements()
    {
        return $this->belongsTo('App\PortalPlaylistElement','playlist_id');
    }

    public function AirtimePlaylistContents()
    {
        return $this->hasMany('App\AirtimePlaylistContent','playlist_id');
    }
}

I have no problems with:

AirtimePlaylist::with('AirtimePlaylistContents')->get());

or

PortalPlaylistElement::with('AirtimePlaylists')->get();

But I'd like to get all AirtimePlaylistContents, in an AirtimePlaylist that belongs to a PortalPlaylistElement.

In essence, (Pseudo code)

PortalPlaylistElement::with('AirtimePlaylists')::with('AirtimePlaylistContents')->get();

Answer 1

nested relations

 with('relation1.relation2.relation3')->get(); // relation1 has relation2 relation2 has relation 3

not nested relations

 with('relation1','relation2','relation3')->get(); // you model has all relations