strprfcrm/app/Models/Dictionary/District.php

<?php

namespace App\Models\Dictionary;

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

class District extends Model
{
    use SoftDeletes;

    protected $fillable = [
        'shortname',
        'name',
    ];

    /**
     * @return HasMany
     */
    public function areas(): HasMany
    {
        return $this->hasMany(Area::class);
    }
}