Merge branch 'dev' of https://git.gigaworld.ddns.net/niklas.ortmann/webprogrammierung into dev

Reviewed-on: #28

php/model/LocalArticleManager.php

@@ -36,14 +36,19 @@ class LocalArticleManager implements ArticleManagerDAO {
      * Speichert alle Artikel/Beiträge in der Datei.
      * @param $articles
      * @return void
-     * TODO: Exceptions implementieren.
+     * @throws InternalServerErrorException
      */
-    public function saveArticle($articles)
+    private function saveArticle($articles)
     {
+        try{
             file_put_contents(
                 $this->file,
                 json_encode($articles, JSON_PRETTY_PRINT)
             );
+        }catch (Exception $e){
+            throw new InternalServerErrorException($e->getMessage());
+        }
+
     }
 
     public function addArticle($title, $content, $author, $category, $tags)