Selecting single option with createMany()

Select correct answer when creating quiz questions.

I am creating a multiple choice question for a quiz and looking for a way to indicate the correct answer at the same time the question options (answer) are created.

This is easy enough if you use a checkbox because you can just send through an additional is_correct field, however the risk of multiple correct answers being checked is high. Ideally I want to use a radio button but the name attribute needs to be the same and I can not figure ot how to indicate the correct answer in the database.

Controller The question options (answers) are throught the question with the saveMany() method.

<!-- Create question -->
$q = question->create('questions');
<!-- Create many answers (related to question) -->
$q->answers->createMany('answers');

Template

<!-- Create question_options array with checkbox -->
<!-- works but will be possible to check multiple answers -->
<input name="question_options[][answer]" type="text">
<input type="checkbox" name="question_options[0][is_correct]">

<input name="question_options[][answer]" type="text">
<input type="checkbox" name="question_options[1][is_correct]">

or

<!-- Create question_options array with radio -->
<!-- Ideal for single selection but can not get correct when persisting -->

<input name="question_options[][answer]" type="text">
<input type="checkbox" name="answer_id">

<input name="question_options[][answer]" type="text">
<input type="checkbox" name="answer_id">