repository problem

StatusRepo.php

<?php

    public static function getAll()
    {
        return Cache::remember('status:all', 60, function () {
            return Status::all();
        });
    }

    /**
     * @param $category_id
     * @return mixed
     */
    public static function getByCategory($category_id = null)
    {
        $statuses = StatusRepository::getAll();

        if ($category_id != null) {
            $statuses->where('category_id', $category_id);
        }

        return $statuses;
    }