[concrete5] オートナビの出力をページ属性の値でグルーピングする

view.php

<?php defined('C5_EXECUTE') or die("Access Denied.");

// application/blocks/autonav/templates/grouping_autonav/view.php

$navItems = $controller->getNavItems();
$c = Page::getCurrentPage();

function cmp($a, $b)
{
  $cmp = strcmp($a->cObj->getAttribute('attribute'), $b->cObj->getAttribute('attribute'));
  return $cmp;
}

usort($navItems , "cmp");

//*** Output menu HTML ***/

if (count($navItems) > 0) {
?>
<ul>
<?php
  $attribute = "";
  foreach ($navItems as $ni) {
    if (empty($attribute)) {
?>
  <li><a href="#"><?php echo $ni->cObj->getAttribute('attribute'); ?></a>
    <ul>
<?php
    }elseif ( $house_area != $ni->cObj->getAttribute('attribute') ) {
?>
    </ul>
  </li>
  <li><a href="#"><?php echo $ni->cObj->getAttribute('attribute'); ?></a>
    <ul>
<?php
    }
?>
  <li><a href="<?php echo $ni->url; ?>" target="<?php echo $ni->target; ?>"><?php echo $ni->name; ?></a></li>
  <?php
    if($ni === end($navItems)) {
?>
    </ul>
  </li>
<?php
    }
    $attribute = $ni->cObj->getAttribute('attribute');
  }
?>
</ul>
<?php
  } else if (is_object($c) && $c->isEditMode()) { ?>
    <div class="ccm-edit-mode-disabled-item"><?php echo t('Empty Auto-Nav Block.')?></div>
<?php }