/**
  * 删除管理员
  * 
  * @return type 
  */
 public function deleteadminAction()
 {
     $request = $this->getRequest();
     $admin_id = (int) $request->getParam('admin_id');
     $csrf_token = $request->getParam('csrf_token');
     if (AdminService::checkCsrfToke($csrf_token) == false) {
         return $this->showWarning('非法操作');
     }
     $admin_service = new AdminService();
     $admin_info = $admin_service->getAdminById($admin_id);
     if (empty($admin_info)) {
         return $this->showWarning('对不起,管理员不存在,无法删除。', '/system/adminmanage');
     }
     $rs = $admin_service->deleteAdmin($admin_id);
     if ($rs) {
         return $this->showMessage('恭喜您,删除成功。', '/system/adminmanage');
     } else {
         return $this->showWarning('很遗憾,删除失败。', '/system/adminmanage');
     }
 }