Disable button after click in JQuery

Question

My button uses AJAX to add information to the database and change the button text. However, I wish to have the button disabled after one click (or else the person can spam the information in the dataabase). How do I do this?

HTML

<button class="btn btn-lg btn-primary" id='roommate_but' onclick='load(<?php echo $user_id;?>)'><span class="glyphicon glyphicon-plus"></span> Add Person</button>

Javascript / AJAX / JQuery

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>

function load(recieving_id){                                    
    if (window.XMLHttpRequest){
        xmlhttp = new XMLHttpRequest();
    } else{
        xmlhttp = new ActiveXObject('Microsoft.XMLHTTP');
    }

    xmlhttp.onreadystatechange = function() {
        if (xmlhttp.readyState == 4 && xmlhttp.status == 200){  
            document.getElementById("roommate_but").innerHTML =  xmlhttp.responseText;


        }

    }

xmlhttp.open('GET','include.inc.php?i=' + recieving_id, true);

xmlhttp.send();


}

Answer 1

*Updated

jQuery version would be something like below:

function load(recieving_id){
    $('#roommate_but').prop('disabled', true);
    $.get('include.inc.php?i=' + recieving_id, function(data) {
        $("#roommate_but").html(data);
    });
}

Answer 2

You can do this in jquery by setting the attribute disabled to 'disabled'.

$(this).prop('disabled', true);

I have made a simple example http://jsfiddle.net/4gnXL/2/

Answer 3

Consider also .attr()

$("#roommate_but").attr("disabled", true); worked for me.

Answer 4

This code is used to accept / decline particular course which a student got as part of allotment in the college.

 <script> $(document).on('click', '.decline', function() { var courseid = $(this).attr('data-id'); $('#accept_'+courseid).prop('disabled', true); }); $(document).on('click', '.accept', function() { var courseid = $(this).attr('data-id'); $('#decline_'+courseid).prop('disabled', true); }); function accept_decline_action(regno,coursecode,coursename,btnval){ var url = '<?php echo site_url('home/accept_decline_status')?>'; $.ajax({ url: url, type: 'POST', data: { regno: regno, coursecode: coursecode, coursename: coursename, btnval: btnval }, success: function(data) { if (btnval == 1) { alert("You have accepted the course: "+coursename); } else { alert("You have declined the course: "+coursename); } } }) } </script>

 <td role="cell" style="text-align: center;"> <div> <button type="button" data-id = "<?= $mk['coursecode']?>" value = 1 id = "accept_<?=$mk['coursecode']?>" name = "accept" class="btn btn-success accept" onclick="accept_decline_action('<?= $regno?>','<?= $mk['coursecode']?>');" title="Accept" style="border-color:#4CAF50;background-color: #4CAF50;">&#10004 </button> </div> <div> <button type="button" class="btn btn-danger decline" value=0 data-id="<?= $mk['coursecode']?>" id="decline_<?= $mk['coursecode']?>" name="decline" onclick="accept_decline_action('<?= $regno?>','<?= $mk['coursecode']?>');" title="Decline" style="background-color:#DC143C; border-color:#DC143C">&#10008 </button> </div> </td>