jucai/app/Repositories/NavigationRepository.php

<?php

namespace App\Repositories;

use App\Models\Navigation;
use Prettus\Repository\Eloquent\BaseRepository;
use Illuminate\Support\Facades\Cache;

/**
 * Class ArticleRepositoryEloquent.
 *
 * @package namespace App\Repositories;
 */
class NavigationRepository extends BaseRepository
{
    public function model()
    {
        return Navigation::class;
    }
    public function getNav($where)
    {
        return $this->model->where($where)->first();
    }
    public function getTopNavs($where)
    {
        return $this->model->where($where)->orderBy('order', 'asc')->get();
    }
    public function getNavs()
    {
        //Cache::forget('nav_list');
       //Cache::flush();
        if (null === $nav_list =  Cache::get('nav_list')) {
            $navs = $this->model->select('alias', 'title', 'urltype', 'pagealias', 'tag', 'target', 'color', 'order', 'url', 'is_personal')
                                 ->where(array('display'=>'1'))
                                 ->orderBy('order', 'asc')
                                 ->get();
            $nav_list = array();
            foreach ($navs as $val) {
                $k = $val->alias;
                if ($val->color) {
                    $val->title = "<font color='".$val->color."'>".$val->title."</font>";
                }
                $nav_list[$k][] = $val;
            }
            Cache::forever('nav_list', $nav_list);
        }

        return $nav_list;
    }

}