Change default radio buttons checked attribute on multi modal pop in

Question

By default, Woocommerce gives me options for my product custom layout. On a click of a button like below

I get a pop up modal with options default product for

However the default choice is always small size irrespective of the web user clicking large. I have attached demo code to showcase issue and my would be solution. I would like to use JS to remove the default checked on page load. Then on click of the button, the size will determine the main meal choice by using data-keys on html.

Issue: My large button click works but the small button click does not change the value checked. Your help or a different take would be appreciated.

 window.onload = removePreSelection(); const clickBtns = Array.from(document.querySelectorAll('.defaultbtn')); clickBtns.forEach(clickBtn => clickBtn.addEventListener('click', clickedBtnSelect)); //Remove the default selection of radio buttons on page. function removePreSelection() { const inputs = document.querySelectorAll('input[name=attribute_pa_sizes]:checked'); for (let i = 0; i < inputs.length; i++) { const element = inputs[i]; element.removeAttribute("checked"); } } //Filter the values of the clicked button. function clickedBtnSelect(e) { removePreSelection(); const bentoSize = e.target.dataset.bento; const bentoModal = e.target.dataset.target.replace(/([#]+)/gi, ''); const modalInputValue = document.querySelector('input[value=' + bentoSize + ']'); console.log(modalInputValue); //set the attribute to checked. modalInputValue.setAttribute("checked", "checked");; }

 <div class="show-pricing"> <p class="variable-pricing"> <span>Large: 27500</span> <button class="btn defaultbtn" data-target="#myModal1900" data-toggle="modal" data-bento="large" type="button">Large</button> </p> <p class="variable-pricing"> <span>Small: 23000</span> <button class="btn defaultbtn" data-target="#myModal1908" data-toggle="modal" data-bento="small" type="button">Small</button> </p> <!-- Modal --> <div aria-labelledby="myModalLabel" class="modal fade" id="myModal1900" role="dialog" tabindex="-1"> <div class="variations"> <div class="col-md-4"> <h3 class="variations-options-head">Large Modal selected</h3> <div class="value"> <fieldset> <p> <input id="pa_sizes" name="attribute_pa_sizes" type="radio" value="large"> <span class="radio-span">Large</span> </p> <p> <input checked="checked" id="pa_sizes" name="attribute_pa_sizes" type="radio" value="small"> <span class="radio-span">Small</span> </p> </fieldset> </div> </div> </div> </div> <!-- Modal 2 --> <div aria-labelledby="myModalLabel" class="modal fade" id="myModal1908" role="dialog" tabindex="-1"> <div class="variations"> <div class="col-md-4"> <h3 class="variations-options-head">Small modal selected</h3> <div class="value"> <fieldset> <p> <input id="pa_sizes" name="attribute_pa_sizes" type="radio" value="large"> <span class="radio-span">Large</span> </p> <p> <input checked="checked" id="pa_sizes" name="attribute_pa_sizes" type="radio" value="small"> <span class="radio-span">Small</span> </p> </fieldset> </div> </div> </div> </div> </div>

Answer 1

Try this working version made with jQuery instead, more compact and efficient:

 (function($){ // variables initialization var a = 'button[data-bento^="small"]', b = 'button[data-bento^="large"]', c = 'input[value^="small"]', d = 'input[value^="large"]'; $(a).click(function(){ var e = $(this).attr('data-target') + ' ' + c; console.log($(this).attr('data-target')); $(e).prop('checked', true); }); $(b).click(function(){ var f = $(this).attr('data-target') + ' ' + d; console.log($(this).attr('data-target')); $(f).prop('checked', true); }); })(jQuery);

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="show-pricing"> <p class="variable-pricing"> <span>Large: 27500</span> <button class="btn defaultbtn" data-target="#myModal1900" data-toggle="modal" data-bento="large" type="button">Large</button> </p> <p class="variable-pricing"> <span>Small: 23000</span> <button class="btn defaultbtn" data-target="#myModal1908" data-toggle="modal" data-bento="small" type="button">Small</button> </p> <!-- Modal --> <div aria-labelledby="myModalLabel" class="modal fade" id="myModal1900" role="dialog" tabindex="-1"> <div class="variations"> <div class="col-md-4"> <h3 class="variations-options-head">Large Modal selected</h3> <div class="value"> <fieldset> <p> <input id="pa_sizes" name="attribute_pa_sizes" type="radio" value="large"> <span class="radio-span">Large</span> </p> <p> <input checked="checked" id="pa_sizes" name="attribute_pa_sizes" type="radio" value="small"> <span class="radio-span">Small</span> </p> </fieldset> </div> </div> </div> </div> <!-- Modal 2 --> <div aria-labelledby="myModalLabel" class="modal fade" id="myModal1908" role="dialog" tabindex="-1"> <div class="variations"> <div class="col-md-4"> <h3 class="variations-options-head">Small modal selected</h3> <div class="value"> <fieldset> <p> <input id="pa_sizes" name="attribute_pa_sizes" type="radio" value="large"> <span class="radio-span">Large</span> </p> <p> <input checked="checked" id="pa_sizes" name="attribute_pa_sizes" type="radio" value="small"> <span class="radio-span">Small</span> </p> </fieldset> </div> </div> </div> </div> </div>

You can click on " Run code snippet " button directly to see it in action…

Tested and works.

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You can also embed it in a hooked function, this way:

add_filter( 'wp_footer','custom_product_title_script' );
function custom_product_title_script(){
    if( ! is_checkout() || is_admin() ) return; // only on single product pages
    ?>
        <script type="text/javascript">
        // HERE goes the jQuery script
        </script>
    <?php
}

Code goes in function.php file of your active child theme (or theme)…