/**
* Overrides the getItems method to attach additional metrics to the list.
*
* @return mixed An array of data items on success, false on failure.
*
* @since 1.6.1
*/
public function getItems()
{
// Get a storage key.
$store = $this->getStoreId('getItems');
// Try to load the data from internal storage.
if (!empty($this->cache[$store])) {
return $this->cache[$store];
}
// Load the list items.
$items = parent::getItems();
// If emtpy or an error, just return.
if (empty($items)) {
return array();
}
// Getting the following metric by joins is WAY TOO SLOW.
// Faster to do three queries for very large menu trees.
// Get the menu types of menus in the list.
$db = $this->getDbo();
$menuTypes = \Hubzero\Utility\Arr::getColumn($items, 'menutype');
// Quote the strings.
$menuTypes = implode(',', array_map(array($db, 'quote'), $menuTypes));
// Get the published menu counts.
$query = $db->getQuery(true)->select('m.menutype, COUNT(DISTINCT m.id) AS count_published')->from('#__menu AS m')->where('m.published = 1')->where('m.menutype IN (' . $menuTypes . ')')->group('m.menutype');
$db->setQuery($query);
$countPublished = $db->loadAssocList('menutype', 'count_published');
if ($db->getErrorNum()) {
$this->setError($db->getErrorMsg());
return false;
}
// Get the unpublished menu counts.
$query->clear('where')->where('m.published = 0')->where('m.menutype IN (' . $menuTypes . ')');
$db->setQuery($query);
$countUnpublished = $db->loadAssocList('menutype', 'count_published');
if ($db->getErrorNum()) {
$this->setError($db->getErrorMsg());
return false;
}
// Get the trashed menu counts.
$query->clear('where')->where('m.published = -2')->where('m.menutype IN (' . $menuTypes . ')');
$db->setQuery($query);
$countTrashed = $db->loadAssocList('menutype', 'count_published');
if ($db->getErrorNum()) {
$this->setError($db->getErrorMsg());
return false;
}
// Inject the values back into the array.
foreach ($items as $item) {
$item->count_published = isset($countPublished[$item->menutype]) ? $countPublished[$item->menutype] : 0;
$item->count_unpublished = isset($countUnpublished[$item->menutype]) ? $countUnpublished[$item->menutype] : 0;
$item->count_trashed = isset($countTrashed[$item->menutype]) ? $countTrashed[$item->menutype] : 0;
}
// Add the items to the internal cache.
$this->cache[$store] = $items;
return $this->cache[$store];
}