How produces statistics with laravel? - mysql

Question

I work on a laravel application that is a bit like a quiz. You create an exercise, you add questions and each question to answers.
Until then everything is fine.
My interest is to present statistics for each exercise after schoolchildren have answered the tests.
I want to be able to display the answer percentage for each question.
Here is an example of the data structure I have:
[
{
"id": 1,
"exercice_id": 1,
"question": "Lorem ipsum ?",
"responses": [
{
"id": 1,
"exercice_id": 1,
"question_id": 1,
"response_text": "Yes",
},
{
"id": 2,
"exercice_id": 1,
"question_id": 1,
"response_text": "No",
}
],
"choice": [
{
"id": 1,
"exercice_id": 1,
"question_id": 1,
"response_id": 1,
},
{
"id": 2,
"exercice_id": 1,
"question_id": 1,
"response_id": 1,
},
{
"id": 3,
"exercice_id": 1,
"question_id": 1,
"response_id": 2,
}
]
},
{
"id": 2,
"exercice_id": 1,
"question": "fake text ?",
"responses": [
{
"id": 3,
"exercice_id": 1,
"question_id": 2,
"response_text": "A",
},
{
"id": 4,
"exercice_id": 1,
"question_id": 2,
"response_text": "B",
},
{
"id": 5,
"exercice_id": 1,
"question_id": 2,
"response_text": "C",
}
],
"choice": [
{
"id": 4,
"exercice_id": 1,
"question_id": 2,
"response_id": 5,
},
{
"id": 5,
"exercice_id": 1,
"question_id": 2,
"response_id": 3,
}
]
}
]
I tried the groupBy method on several elements. but I have not found the formula yet.
return response()->json(Question::with('responses','choice')
->where('exercice_id',$exo->id)
//->groupBy('choice')
->get(),
200,[], JSON_NUMERIC_CHECK);