I am implementing a Bootstrap 5 switch input that I need to be mandatory, meaning it should be checked by default and not uncheckable. The official documentation suggests combining the attributes checked and disabled. However, it seems like the Javascript FormData class does not recognize disabled inputs, even when they are checked. Is there a solution to this issue or do I need to find an alternative approach without using FormData?
When faced with the challenge of submitting values from disabled checkboxes in a form, JavaScript can come to the rescue.
Consider using the following snippet as a guide:
$('form').submit(function(event) {
$('#checkbox-id').each(function() {
$(this).removeAttr('disabled');
})
});
If you're looking for a vanilla JavaScript solution, one way is to manually populate the FormData object like this:
let form = e.target;
let data = new FormData(form); // Serialize all form elements that are not disabled
// Identify and include disabled Bootstrap switches ...
let switchInputs = form.querySelectorAll('.form-switch>input[type=checkbox]:disabled');
// ... then add them to the FormData object
switchInputs.forEach(function(input){
if(input.checked) {
data.append(input.name, input.value || 'on');
}
});
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