Laravel add variable for nested collections - laravel

Question

I want to add variable to each object of collection inside collection. Here JSON response like this:
{
"id": 16,
"survey_id": "8",
"title": "How are you?",
"created_at": "2020-02-06 04:21:44",
"updated_at": "2020-02-06 04:21:44",
"answers": [
Here I want to add variable to each answer
{
"id": 52,
"question_id": "16",
"text": "VERY GOOD",
"created_at": "2020-02-06 04:21:44",
"updated_at": "2020-02-06 04:21:44",
"reports_count": "4",
"responded": 2
},
{
"id": 53,
"question_id": "16",
"text": "OK",
"created_at": "2020-02-06 04:21:44",
"updated_at": "2020-02-06 04:21:44",
"reports_count": "4",
"responded": 2
},
{
"id": 54,
"question_id": "16",
"text": "BAD",
"created_at": "2020-02-06 04:21:44",
"updated_at": "2020-02-06 04:21:44",
"reports_count": "2",
"responded": 2
}
]
},
Overall, I want to add for every answers variable like $respond = $answer->reports()->count(); Help PLease!!

Answer 1

You could do something like this, if you want to calculate it in the collection directly.
$yourCollection->transform(function($collectionItem) {
$collectionItem['responded'] = $collectionItem->answers->count();
return $collectionItem;
});
But you could do this also on the sql side. I think it should be also the better way ;)

Answer 2

I would fetch the answers from the database before assigning that array to a new question-object-property.
public function get() {
// fetch parent question
$question = Question::where('title', $title)->get();
// fetch answers
$answers = Answers::where('parent_id', $question->id)->get();
// create property called "answers"
$question->answers = $answers;
return response()->json($question);
}