Warning (2): Invalid argument supplied for foreach() [APP/Controller/AppController.php, line 1129]

Code Context

            }
            $this->assign->side_menu['menus']=array();
            foreach($source_ids as $m_id){

$menu_data = array(
	'Menu' => array(
		'id' => null,
		'parent_id' => null,
		'family' => null,
		'title' => null,
		'ex_title' => null,
		'es_title' => null,
		'type' => null,
		'ex_link' => null,
		'level' => null,
		'list_count' => null,
		'child_count' => null,
		'is_nav' => null,
		'is_redirect' => null,
		'is_content' => null,
		'image' => null,
		'thumb_width' => null,
		'thumb_height' => null,
		'thumb_method' => null,
		'template' => null,
		'summary' => null,
		'keywords' => null,
		'description' => null,
		'list_order' => null,
		'extra' => null
	)
)
$options = array(
	'no_redirect' => true
)
$front_families = array(
	(int) 0 => null
)
$front_families_item = null
$source_ids = null

AppController::_processMenu() - APP/Controller/AppController.php, line 1129
AppController::view() - APP/Controller/AppController.php, line 682
call_user_func - [internal], line ??
ArticleController::view() - APP/Controller/ArticleController.php, line 100
ReflectionMethod::invokeArgs() - [internal], line ??
Controller::invokeAction() - CORE/Cake/Controller/Controller.php, line 486
Dispatcher::_invoke() - CORE/Cake/Routing/Dispatcher.php, line 187
Dispatcher::dispatch() - CORE/Cake/Routing/Dispatcher.php, line 162
[main] - APP/webroot/index.php, line 96