How to Prevent Users from Submitting a Form Twice

Question

when user click add button twice, from get submitted twice with same dat

Answer 1

You can add a class to your form and your submit button and use jquery:

$(function() {

    // prevent the submit button to be pressed twice
    $(".createForm").submit(function() {
        $(this).find('.submit').attr('disabled', true);
        $(this).find('.submit').text('Sending, please wait...');
    });
})