getArticle by id

php/model/LocalArticleManager.php

@@ -67,7 +67,15 @@ class LocalArticleManager implements ArticleManagerDAO {
 
     public function getArticle($id)
     {
-        // TODO: Implement getArticle() method.
+        $articles = $this->getAllArticles();
+
+        foreach ($articles as $article) {
+            if (isset($article['id']) && $article['id'] == $id) {
+                return $article;
+            }
+        }
+
+        return null;
     }
 
     public function getAllArticles()