/**
  * Determine if the user is authorized to make this request.
  *
  * @return bool
  */
 public function authorize()
 {
     $pageKey = Constants::getParameterKeyPage();
     $pageSizeKey = Constants::getParameterKeyPageSize();
     $page = $this->get($pageKey);
     $pageSize = $this->get($pageSizeKey);
     $page = intval($page);
     $pageSize = intval($pageSize);
     if ($page < 1) {
         $page = Constants::getDefaultPage();
         $this->query->set($pageKey, $page);
     }
     if ($pageSize <= 0) {
         $pageSize = Constants::getDefaultLimit();
         $this->query->set($pageSizeKey, $pageSize);
     }
     // force current page to $page
     Paginator::currentPageResolver(function () use($page) {
         return $page;
     });
     return true;
 }
 /**
  * 获取当前页
  * @param Request $request
  * @return mixed
  */
 public function getPage(Request $request)
 {
     return $request->get(Constants::getParameterKeyPage(), Constants::getDefaultPage());
 }