PianoTime/app/Models/Content.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Content extends Model
{
    protected $table = 'contents';

    protected $guarded = [];

    protected $types;

    public function __construct(array $attributes = [])
    {
        parent::__construct($attributes);
        $this->types = collect([
            collect(['key' => 1, 'value' => 1, 'show_value' => '公告']),
            collect(['key' => 2, 'value' => 2, 'show_value' => '活动']),
            collect(['key' => 3, 'value' => 3, 'show_value' => '视频']),
            collect(['key' => 4, 'value' => 4, 'show_value' => '文章']),
        ]);
    }

    public function getModelType($type)
    {
        return in_array($type, [1, 2, 3, 4]) ? $type : 1;
    }

    public function getModelName($type)
    {
        $item = $this->types->where('key', $type)->first();
        return empty($item) ? '公告' : $item['show_value'];
    }
}