Предупреждение DataTables: таблица id = application - запрошенный неизвестный параметр 'halfDayType' для строки 0 в laravel

Question

Вид

<script>
var table = $('#applications').dataTable(
{
    processing: true,
    serverSide: true,
    "ajax": "{{ URL::route("front.leave_applications") }}",
    "aaSorting": [[0, "asc"]],
    columns: [
        {data: 'id', name: 'id'},
        {data: 'start_date', name: 'start_date'},
        {data: 'days', name: 'days'},
        {data: 'leaveType', name: 'leaveType'},
        {data: 'halfDayType', name: 'halfDayType'},
        {data: 'reason', name: 'reason'},
        {data: 'applied_on', name: 'applied_on'},
        {data: 'application_status', name: 'application_status'},
        {data: 'edit', name: 'edit', "bSortable": false}
    ],
    "sPaginationType": "full_numbers",
    "language": {
        "lengthMenu": "Display _MENU_ records per page",
        "info": "Showing page _PAGE_ of _PAGES_",
        "emptyTable": "{{trans('messages.noDataTable')}}",
        "infoFiltered": "(filtered from _MAX_ total records)",
        "search": "{{trans('core.search')}}:"
    },
    "fnRowCallback": function (nRow, aData, iDisplayIndex) {
        var oSettings = this.fnSettings();
        $("td:first", nRow).html(oSettings._iDisplayStart + iDisplayIndex + 1);
        return nRow;
    }

});
</script>    
<table class="table table-striped table-bordered table-hover" id="applications">
    <thead>
    <tr>
        <th>{{trans('core.id')}}</th>
        <th>{{trans('core.date')}}</th>
        <th class="text-center">{{trans('core.days')}}</th>
        <th>{{trans('core.type')}}</th>
        <th>{{trans('core.Leave type')}}</th>
        <th>{{trans('core.reason')}}</th>
        <th>{{trans('core.appliedOn')}}</th>
        <th>{{trans('core.status')}}</th>
        <th>{{trans('core.action')}}</th>
    </tr>
    </thead>
    <tbody>
    <tr>
        <td> {{-- ID from Contoller ajaxload------}} </td>
        <td class="text-center"> {{-- Date from Contoller ajaxload----}} </td>
        <td> {{-- Days from Contoller ajaxload----}} </td>
        <td> {{-- Leavetype from Contoller ajaxload--}} </td>
        <td> {{-- HalfDayType from Controller ajaxload--}}</td>
        <td> {{-- Reason from Contoller ajaxload----}} </td>
        <td> {{-- Applied on from Contoller ajaxload---}} </td>
        <td> {{-- Status from Contoller ajaxload----}} </td>
        <td> {{-- Action from Contoller ajaxload----}} </td>
    </tr>
    </tbody>
</table>

Контроллер

public function ajaxApplications()
{
    $result = LeaveApplication::select('leave_applications.id', 'start_date', 'end_date', 'days', 'leaveType', 'reason', 'applied_on', 'application_status', 'halfDayType')
        ->whereNotNull('application_status')
        ->where("leave_applications.employee_id", $this->employee->id)
        ->orderBy('leave_applications.id', 'desc')->get();

    return \DataTables::of($result)->editColumn('start_date', function ($row) {
        return date('d/m/Y', strtotime($row->start_date)) . (isset($row->end_date) ? "<br>to<br>" . date('d/m/Y', strtotime($row->end_date)) : '');
    })->editColumn('applied_on', function ($row) {
        return date('d-M-Y', strtotime($row->applied_on));
    })->editColumn('leaveType', function ($row) {
        $leave = ($row->halfDayType == 'yes') ? 'half day -' . $row->leaveType : $row->leaveType;

        return $leave;
    })->editColumn('halfDayType', function ($row){
        if($row->halfDayType == 'fl')
        {
            return '<a href="javascript:void(0)" class="btn btn-danger">Full Day Leave</a>';
        }
        else if($row->halfDayType == 'hl')
        {
            return '<a href="javascript:void(0)" class="btn btn-warning">Half Day Leave</a>';
        }
        else if($row->halfDayType == 'sl')
        {
            return '<a href="javascript:void(0)" class="btn btn-primary">Short Day Leave';
        }
    })->editColumn('reason', function ($row) {
        return strip_tags(Str::limit($row->reason, 50));
    })->editColumn('application_status', function ($row) {
        $color = ['pending' => 'warning', 'approved' => 'success', 'rejected' => 'danger'];

        return "<span class='label label-{$color[$row->application_status]} text-uppercase'>{$row->application_status}</span>";
    })->removeColumn('halfDayType')->removeColumn('end_date')
        ->addColumn('edit', function ($row) {
            if($row->application_status == 'pending')
            {
                return '<a href="editLeave/'.$row->id.'"  class="btn-u btn-u-xs btn-u-green" style="margin-bottom:5px;"><i class="fa fa-edit"></i></a>
                    <button  class="btn-u btn-u-xs btn-u-blue" onclick="show_application(' . $row->id . ');return false;" ><i class="fa fa-eye"></i></button>';
            }
            else 
            {
                return '<button  class="btn-u btn-u-xs btn-u-blue" onclick="show_application(' . $row->id . ');return false;" ><i class="fa fa-eye"></i></button>';
            }
        })
        ->rawColumns(['start_date', 'applied_on', 'leaveType', 'reason', 'edit', 'application_status'])
        ->make();
}

В этом коде я просто хочу показать halfDayType значение в моем Leave Type заголовок таблицы, и у меня проблема с заголовком таблицы, если я пишу <th>{{trans('core.Leave type')}}</th>, то это выглядит как core.Leave Type, но у меня есть ошибка, т.е. DataTables warning: table id=applications - Requested unknown parameter 'halfDayType' for row 0. Я не знаю, почему это появляется. Итак, как я могу решить эту проблему? Пожалуйста, помогите мне.

Спасибо.