public static function getCategoriesByUserGroups($user = null)
{
if ($user == null) {
$user = JFactory::getUser();
}
self::$catIds = array();
ImcHelper::getCategoriesUserGroups();
//populates self::catIds
$categories = self::$catIds;
$usergroups = JAccess::getGroupsByUser($user->id);
$allowed_catIds = array();
foreach ($categories as $category) {
foreach ($category['usergroups'] as $groupid) {
if (in_array($groupid, $usergroups)) {
array_push($allowed_catIds, $category['catid']);
}
}
}
return $allowed_catIds;
}
