Newscoop\WebcodeFacade::setArticleWebcode PHP Method

    public function setArticleWebcode(Entity\Article $article, $webcode = null)
    {
        if (empty($webcode)) {
            $webcode = $this->generateWebcode();
        } else {
            if (!$this->isUnique($webcode)) {
                throw new \InvalidArgumentException("Webcode '{$webcode}' is in use.");
            }
        }
        $webcode = new Entity\Webcode($webcode, $article);
        $article->setWebcode($webcode);
        $this->em->persist($webcode);
        $this->em->flush();
    }