问分页器未传递CakePHP自定义字段

EN

public function index_list()
{
    $data = $this->find()
    ->contain(['Images' => function($q) {
            $q->select([
                 'total' => $q->func()->count('image_id')
            ])
            ->group(['photoalbum_id']);
            return $q;
        }
    ]);

    foreach ($data as $row)
    {
        $row->image_count = 0;
        if (isset($row->images{0}->total))
        {
            $row->image_count = $row->images{0}->total;
        }
        unset($row->images);
    }       
    return $data;
}

<?php
class PhotoalbumsController extends AppController
{
    public $paginate = [
        'limit' => 2,
        'order' => ['id' => 'desc']
    ];

    public function index()
    {
        $photoalbums = $this->paginate($this->Photoalbums->index_list());
        $this->set(compact('photoalbums'));
    }