/**
  * Ajax: GET|POST /sequence/manage
  *
  * Gets a dialog box content or updates data from the content
  *
  * Post-Arguments:
  * seq[<id>][*] - Updated information for existing sequences
  * seq[<new-*>[*] - Information for new sequences
  * seq[<id>][deleted] - If set to true, indicates that the sequence
  *      should be deleted from the database
  *
  * Throws:
  * 403 - Not logged in
  * 422 - Information sent for update of unknown sequence
  */
 function manage()
 {
     global $thisstaff;
     if (!$thisstaff) {
         Http::response(403, 'Login required');
     }
     $sequences = Sequence::objects()->all();
     $info = array('action' => '#sequence/manage');
     $valid = true;
     if ($_POST) {
         foreach ($_POST['seq'] as $id => $info) {
             if (strpos($id, 'new-') === 0) {
                 unset($info['id']);
                 $sequences[] = Sequence::create($info);
             } else {
                 foreach ($sequences as $s) {
                     if ($s->id == $id) {
                         break;
                     }
                     $s = false;
                 }
                 if (!$s) {
                     Http::response(422, $id . ': Invalid or unknown sequence');
                 } elseif ($info['deleted']) {
                     $s->delete();
                     continue;
                 }
                 foreach ($info as $f => $val) {
                     if (isset($s->{$f})) {
                         $s->set($f, $val);
                     } elseif ($f == 'current') {
                         $s->next = $val;
                     }
                 }
                 if (($v = $s->isValid()) !== true) {
                     $msg = sprintf('%s: %s', $s->getName(), $valid);
                     $valid = false;
                 }
             }
         }
         if ($valid) {
             foreach ($sequences as $s) {
                 $s->save();
             }
             Http::response(205, 'All sequences updated');
         }
     }
     include STAFFINC_DIR . 'templates/sequence-manage.tmpl.php';
 }
<?php 
$selected = 'selected="selected"';
?>
            <td>
                <select name="sequence_id">
                <option value="0" <?php 
if ($config['sequence_id'] == 0) {
    echo $selected;
}
?>
>&mdash; <?php 
echo __('Random');
?>
 &mdash;</option>
<?php 
foreach (Sequence::objects() as $s) {
    ?>
                <option value="<?php 
    echo $s->id;
    ?>
" <?php 
    if ($config['sequence_id'] == $s->id) {
        echo $selected;
    }
    ?>
><?php 
    echo $s->name;
    ?>
</option>
<?php 
}