crm/app/model/Recommend.php

<?php

namespace app\model;

use think\Model;

class Recommend extends Model
{
    public function community()
    {
        return $this->belongsTo(Community::class, 'community')->bind(['community_name'=>'name']);
    }

    public function style()
    {
        return $this->belongsTo(Decostyle::class, 'style')->bind(['style_name'=>'name']);
    }

    public function getCoverImgAttr($value)
    {
        if(empty($value)) return $value;
        $bindUrl = config('app.ali_oss_bindurl');

        return 'http://' . $bindUrl . '/' . $value;
    }
}