lianjie_admin/app/Models/Banner.php

<?php

namespace App\Models;

use Dcat\Admin\Traits\HasDateTimeFormatter;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Database\Eloquent\Model;

class Banner extends Model
{
	use HasDateTimeFormatter;
    use SoftDeletes;

    protected $table = 'lanzu_banners';
    protected $dateFormat = 'U';

    protected $appends = [
        'cover_url',
    ];

    public static $_coverType = [1=>'图片', 2=>'视频'];
    public static $_pathType = ['page'=>'page','webview'=>'webview','applet'=>'applet'];
    public static $_type = [1=>'首页'];
    public static $_status = ['禁用', '正常'];

    public function getCoverUrlAttribute($value)
    {
        $value = $value ? $value : $this->cover;
        return $this->imageUrl($value);
    }

    /**
     * 处理旧图片
     * @param $value
     * @return string
     */
    public function imageUrl($value)
    {
        if(strripos($value,"http") === false){
            return env('OSS_IMG_HOST').'/'.$value;
        }else{
            return $value;
        }
    }
}