test/app/Http/Models/Agent.php

<?php

namespace App\Http\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

class Agent extends Model
{
    use SoftDeletes;
    protected $primaryKey = 'id';
    protected $table = 'agents';
    protected $guarded = [];
    protected $casts = [
        'channel_ids' => 'array'
    ];

    const AGENT_TYPE = [
        1 => '代理商',
        2 => '城市运营中心'
    ];
}