[Notice] Trying to get property of non-object

Source

4 	private static $url_handlers = [
5 		'$ID' => 'index',
6 	];
7 
8 	public function index(SS_HTTPRequest $request) {
9 		if ($request->param('ID')) {
10 			$article = $this->getArticleBySlug(urlencode($request->param('ID')));
11 
12 			return $this->customise(new ArrayData(array(
13 				'Title' => $article->Title,
14 				'Article' => $article,
15 			)))->renderWith(array('NewsArticle', 'Page'));
16 		}
17 		else {
18 			if (isset($_GET['type']) && in_array(strtolower($_GET['type']), ['researchinsight', 'news'])) {
19 				$showType = $_GET['type'] == 'researchinsight' ? 'Research & Insight' : $_GET['type'];

Trace

• NewsHolder_Controller->index(SS_HTTPRequest)
  RequestHandler.php:288
• RequestHandler->handleAction(SS_HTTPRequest,index)
  Controller.php:202
• Controller->handleAction(SS_HTTPRequest,index)
  RequestHandler.php:200
• RequestHandler->handleRequest(SS_HTTPRequest,DataModel)
  Controller.php:158
• Controller->handleRequest(SS_HTTPRequest,DataModel)
  ContentController.php:174
• ContentController->handleRequest(SS_HTTPRequest,DataModel)
  ModelAsController.php:75
• ModelAsController->handleRequest(SS_HTTPRequest,DataModel)
  Director.php:385
• Director::handleRequest(SS_HTTPRequest,Session,DataModel)
  Director.php:149
• Director::direct(/news/why there's no need for fancy high cost advertising..,DataModel)
  main.php:191