public function update_status()
 {
     $id = $_POST[tpl_trainer::trainer() . '_' . tpl_trainer::id()];
     $status = $_POST[tpl_trainer::trainer() . '_' . tpl_trainer::status()];
     $db = new data_base(tpl_trainer::trainer(), array(tpl_trainer::status() => $status), array(tpl_trainer::id() => $id));
     $results = $db->change();
     $status_data = $status == 1 ? 'active' : 'dative';
     if ($results) {
         echo json_encode(array('valid' => 1, 'title' => 'Successfully !!', 'massage' => 'I\'ve been Update ' . $status_data));
     } else {
         echo json_encode(array('valid' => 0, 'title' => 'Oops !!', 'massage' => 'Was not Update ' . $status_data . ', please try again'));
     }
 }
                <button id="add_new_btn" class="btn btn-success btn-xs">Add</button>
                </br>
            </div>
            <div class="table-responsive">
                <table id="table" data-toggle="table"
                       data-url="<?php 
echo site_url('admin/trainer/ajax_all');
?>
"
                       data-cache="false" data-height="400" data-show-refresh="true" data-show-toggle="true"
                       data-show-columns="true" data-pagination="true" data-page-list="[5, 10, 20, 50, 100, 200]"
                       data-search="true" data-flat="true" data-toolbar="#toolbar">
                    <thead>
                    <tr>
                        <th data-field="<?php 
echo tpl_trainer::id();
?>
" data-halign="center" data-sortable="true"> id</th>
                        <th data-field="<?php 
echo tpl_trainer::name();
?>
"
                            data-formatter="operate<?php 
echo tpl_trainer::trainer();
?>
"
                            data-halign="center" data-sortable="true"> name
                        </th>
                        <th data-field="<?php 
echo tpl_companies::companies() . '_' . tpl_companies::id();
?>