'int', 'gender' => 'int', 'birth_date' => 'datetime' ]; protected $fillable = [ 'user_id', 'first_name', 'last_name', 'national_code', 'passport_number', 'gender', 'birth_date', 'mobile', 'email', 'nationality' ]; public function user() { return $this->belongsTo(User::class); } }