Why do related Eloquent model properties disappear when passed via ajax?

Question

Laravel

The Chat model has an associated Message model via an associated messages property:

public function messages(){
  return $this->hasMany(Message::class);
}

the controller finds a suitable chat and sends it back via Ajax

return $chat->firstOrCreate([
      'product_id' => $data['product_id'],
      'user_id' => $data['user_id']
]);

but when outputting the messages property, there is no:

$.get(
    "/chat/get_messages",
    {data:data},
    function (result)
    {
      console.log(result.messages);
    }
);

to output it is necessary to reassign this property in the controller:

$result= $chat->firstOrCreate([
      'product_id' => $data['product_id'],
      'user_id' => $data['user_id']
]);
$result->messages=$result->messages??null;
return $result;

This multiplies the code and is irrational. How to shorten or make the associated property not get lost

Answer 1

https://laravel.com/docs/7.x/eloquent-relationship...