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/**
 *  Builds Acos tree from current app controllers and actions:
 *  controller1
 *    |--action1
 *    |--action2
 *  controller2
 *    |--action1
 *    |--action2
 *
 */
function _buildAcosTree($adminAro = null) {
    $aco = new Aco();
	$excludedActions = array("apperror","map","action_map");
	$excludedActions = am($excludeList,get_class_methods('Controller'));
	$controllers = listClasses(APP."/controllers/");
 
	foreach ($controllers as &$controller) {
		require_once($controller);
		$controller = preg_replace('/.php/','',$controller);
		$controllerAlias = Inflector::camelize(preg_replace('/_controller/','',$controller));
		$controllerActions = array_diff(get_class_methods(Inflector::camelize($controller)), $excludedActions);
 
		if (!$aco->findByAlias($controllerAlias)) {
			$aco->create();
		    $aco->save(array('alias'=>$controllerAlias));
		}
 
		if (!empty($adminAro)) {
		    $this->Acl->allow($adminAro, $controllerAlias);
		}
 
		$parent = $aco->findByAlias($controllerAlias);
		$parentId = $parent['Aco']['id'];
 
		foreach ($controllerActions as $action) {
			if ($action{0} <> "_") {
				if (!$aco->findByAliasAndParentId($action,$parentId)) {
					$aco->create();
					$aco->save(array('parent_id'=>$parentId,'alias'=>"{$action}"));
				}
			}
		}
	}
}