Getting an "Invalid index value 'value'" when using serverSide: true

dragon013

Hello,

I am trying to run the example for server-side process, but it seems I am doing something wrong. Maybe someone is able to put me onto the right track for solving this problem.

Here is my javascript

$(document).ready(function() {
    $('#example').dataTable( {
        "processing": true,
        "serverSide": true,
        "ajax": "/action/forumList.do?do=getTopicsJSON",
        "columns": [
            { "data": "first_name" },
            { "data": "last_name" },
            { "data": "position" },
            { "data": "office" }
        ]
    } );

} );

When running the page, I get a 500 Internal Error with the message: java.lang.IllegalArgumentException: Invalid index value 'value'. The AJAX request was not be sent.

As soon as I commented out the "serverSide" option (or setting it to false), the table is filled with the data I get via the AJAX request.

The JSON given back is valid:

{
  "draw": 1,
  "recordsTotal": 3,
  "recordsFiltered": 3,
  "data": 
      [
       {"first_name":"Airi","last_name":"Satou","position":"1","office":"NY"},    
       {"first_name":"Airi","last_name":"Satou","position":"2","office":"NY"},   
       {"first_name":"Airi","last_name":"Satou","position":"3","office":"NY"}
     ]
}

The definition of the table:

<table id="example" class="display" cellspacing="0" width="100%">
        <thead>
            <tr>
                <th>Name</th>
                <th>Position</th>
                <th>Office</th>
                <th>Extn.</th>
            </tr>
        </thead>
        <tfoot>
            <tr>
                <th>Name</th>
                <th>Position</th>
                <th>Office</th>
                <th>Extn.</th>
            </tr>
        </tfoot>
    </table>

Using DataTables 1.10.1

Thanks in advance for any help!

Dragon013

dragon013

Update:

I was able to get down to the source of this problem. In apache's commons beanutil there is a function which parses expressions in request. When parsing search[value], it parses "value" as int because it expects values written in [] to be integers.

As far as I understand the documentation of using serverside in Datatables, search[value] contains the searchterm where 'value' is the index of the array of search options. (the other index is then regex).

Do I have any chance to do a workaround there ?

Thanks in advance!

Dragon013

dragon013

Just for documentation, if someone gets into the same problems: the main problem is / was Struts 1.x . Luckily were are switching to Spring. With Spring, everything is fine.