baoshi-was/app/TerminalPrinter.php

<?php

namespace App;

use App\Traits\ModelTimeFormat;
use Illuminate\Database\Eloquent\Model;

use App\Traits\ModelLogChanging;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class TerminalPrinter extends Model
{
    use ModelLogChanging;
    use ModelTimeFormat;

    protected $fillable = ['terminal_id', 'printer_name', 'alias_name', 'print_type'];

    static public $enums = [
        'print_type' => [
            '菜鸟' => 0,
            '拼多多' => 1,
            '顺丰' => 2,
            '京东' => 3,
        ],
    ];

    function __construct(array $attributes = [])
    {
        foreach (self::$enums as &$enum) {
            $enum = $enum + array_flip($enum);
        }
        parent::__construct($attributes);
    }

    public function getPrintTypeAttribute($value)
    {
        if (!$value && $value !== 0) return '';
        return self::$enums['print_type'][$value];
    }

    public function setPrintTypeAttribute($value)
    {
        if (!$value) return 0;
        $this->attributes['print_type'] = self::$enums['print_type'][$value];
    }


    public function terminal(): BelongsTo
    {
        return $this->belongsTo(Terminal::class);
    }
}