mandant-crm/backend/app/Modules/Client/Models/Client.php

<?php

namespace App\Modules\Client\Models;

use App\Modules\CustomField\Models\CustomFieldValue;
use App\Modules\History\Models\HistoryEntry;
use Database\Factories\ClientFactory;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\SoftDeletes;

class Client extends Model
{
    use HasFactory, SoftDeletes;

    protected $fillable = ['client_number', 'name', 'notes'];

    protected $casts = ['notes' => 'array'];

    protected static function newFactory(): ClientFactory
    {
        return ClientFactory::new();
    }

    public function historyEntries(): HasMany
    {
        return $this->hasMany(HistoryEntry::class);
    }

    public function customFieldValues(): HasMany
    {
        return $this->hasMany(CustomFieldValue::class);
    }
}