franzose

// everything's creating fine. Positions and closure table, all's fine.
$Test = Test::create(array());
$child1 = $Test->appendChild(Test::make(), 0, true);
$child2 = $Test->appendChild(Test::make(), 1, true);
$child3 = $Test->appendChild(Test::make(), 2, true);
$child4 = $Test->appendChild(Test::make(), 3, true);

// this returns ids of $Test, $child1, $child2 and $child3...
dd($child4->prevSiblings()->lists('id'));

franzose

    public static function make(array $attributes = array())
    {
        $model = new static();

        // Workaround to set the position
        if ( ! isset($attributes[static::POSITION]))
        {
            // We set depth to 0 because newly created model
            // via 'create' method has no default closure table
            // attributes and is inserted as a root node