Devise\Pages\PagesRepository::getPageVersionsByAB PHP 메소드

    public function getPageVersionsByAB($page)
    {
        $now = $this->now;
        $versions = $page->versions()->with('fields')->where('ab_testing_amount', '>', 0)->where('starts_at', '<', $now)->where(function ($query) use($now) {
            $query->where('ends_at', '>', $now);
            $query->orWhereNull('ends_at');
        })->orderBy('starts_at', 'DESC')->get();
        return $versions;
    }