KTV/app/Models/Artist.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use App\Helpers\ChineseNameConverter;
use App\Helpers\ChineseStrokesConverter;
use App\Traits\LogsModelActivity;

class Artist extends Model
{
    /** @use HasFactory<\Database\Factories\ArtistFactory> */
    use HasFactory, LogsModelActivity;

    protected $fillable = [
        'category',
        'name',
        'simplified',
        'phonetic_abbr',
        'pinyin_abbr',
        'strokes_abbr',
        'enable',
    ];

    protected function casts(): array
    {
        return [
            'category' => \App\Enums\ArtistCategory::class,
        ];
    }
   
    public function songs() {
        return $this->belongsToMany(Song::class);
    }
    
    protected static function booted()
    {
        // 無論是 creating 或 updating，都執行這段共用的邏輯
        static::saving(function (Artist $artist) {
            $simplified=ChineseNameConverter::convertToSimplified($artist->name);// 繁體轉簡體
            $artist->simplified =  $simplified;
            $artist->phonetic_abbr = ChineseNameConverter::getKTVZhuyinAbbr($simplified);// 注音符號
            $artist->pinyin_abbr=ChineseNameConverter::getKTVPinyinAbbr($simplified);// 拼音首字母

            $chars = preg_split('//u', $artist->name, -1, PREG_SPLIT_NO_EMPTY);
            $firstChar = $chars[0] ?? null;
            $artist->strokes_abbr=( $firstChar && preg_match('/\p{Han}/u', $firstChar) ) ? ChineseStrokesConverter::getStrokes($firstChar) : 0;
        });

        static::deleting(function (Artist $artist) {
            // 解除與歌曲的多對多關聯
            $artist->songs()->detach();
        });
    }

}