protected function buildFilter($aFilter)
{
$where = parent::buildFilter($aFilter);
//we are extending the core, right?
//this makes sure there is NO content listed in case there are no entries commented by me or my friends
if (empty($aFilter['topic_id'])) {
$aFilter['topic_id'] = 0;
}
//extend the default filter
if (isset($aFilter['topic_id'])) {
$aFilter['topic_id'] = (array) $aFilter['topic_id'];
$aFilter['topic_id'][] = 0;
//safety pin
$where .= ' AND topic_id IN (' . implode(',', $aFilter['topic_id']) . ') ';
}
//debug output
dump($where);
return $where;
}
