Leveraging Ajax to enhance the functionality of datatables

I am currently working with a datatable in my project, but I'm facing difficulty in retrieving data from my ajax file to the datatable codes.

Below are the snippets of my codes:

AJAX

<?php
function functionClass($id) {
    // create sql query
    $Class = "SELECT class.id, class.day, class.start_time, class.end_time, subject.subject_name, tutor.tutor_id, tutor.tutor_name AS t_name, classroom.room
    FROM class, subject, tutor, classroom
    WHERE class.subject_id = subject.id
    AND class.tutor_id = tutor.id
    AND class.classroom_id = classroom.id";

    //$resultClass = mysqli_query($link, $viewClass) or die(mysqli_error($link));
}
?>

Javascript

<script>
`$(document).ready( {`
$.fn.dataTable.TableTools.defaults.aButtons = [ "csv" ];
$('.datatable').DataTable({
    responsive: true,
    serverSide: true,
    processing: true,       
    lengthMenu: [ [10, 25, 50, -1], [10, 25, 50, "All"] ],
    ajax: {
        url: "http://localhost/FYP/dt/class/",
        type: "POST",
        data: {
            method: "get"     
            }
        }, 
        columns : [
            {
                data: "id",
                render: function(data, type, row) {
                    return <?php echo $row['id'] ?> + row.id + '/">' + data + '</a>';
                }
            }   
        ]
});
</script>

My datatable method is

<div class="container">
    <div class="btn-toolbar" role="toolbar">
        <a href="addNewClass.php" class="btn btn-success"><span class="fa fa-fw fa-plus"></span> New Class</a>    
    </div>        
    <table class="table table-hover table-striped datatable" width="100%">
        <thead>
            <tr> 
                <th class="all">S/N</th>
                <th class="min-tablet-l">Day</th>
                <th class="min-tablet-l">Start Time</th>
                <th class="min-tablet-l">End Time</th>
                <th class="min-tablet-l">Subject</th>
                <th class="min-tablet-l">Staff ID</th>                
                <th class="min-tablet-l">Tutor</th>
                <th class="min-tablet-l">Classroom</t                  
            </tr>
        </thead>
        <tbody>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tbody>
        <tfoot>
            <tr> 
                <th>S/N</th>
                <th>Day</th>
                <th>Start Time</th>
                <th>End Time</th>
                <th>Subject</th>
                <th>Staff ID</th>                
                <th>Tutor</th>
                <th>Classroom</th>                
            </tr>
        </tfoot>            
    </table>
</div>  

UPDATE: After resolving most of the issues, I encountered an error when initializing the table, stating "3. Warning: Cannot reinitialize Data." Upon checking my console, it indicates that POST http://localhost/FYP/dt/functionClass/ could not be found (404 Error).

Answer №1

update and experiment with the following..

ajax: {
       url: "http://example.com/api/data/",
       type: "GET",
       data: {  query: "all_users"  } //information to retrieve
      }, 

Answer №2

The primary step is to verify the ajax syntax for any errors. An error was detected: insert a , after the url parameter.

url: "http://localhost/FYP/dt/class/",
        type: "POST",

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