function editArticle(id, articleConfig) {

        var article = getArticleById(id);
        if (article === -1) {
            return false;
        }

        Object.keys(articleConfig).forEach(function (key) {
            if (article[key] && isArticleKeyChangeable(key)) {
                article[key] = articleConfig[key];
            }
        });

        if(validateArticle(article)) {
            return article;
        }

    }