prepareTagAssociatedData example

 else {
            // New Data             $blogModel = new Blog();
        }
        // Setting the date in this way cause ext js got no datetime field         $params['displayDate'] = $params['displayDate'] . ' ' . $params['displayTime'];

        if (!$params['shopIds']) {
            $params['shopIds'] = null;
        }

        $this->prepareTagAssociatedData($params, $blogModel);
        $params = $this->prepareAssignedArticlesAssociatedData($params);
        $params = $this->prepareAuthorAssociatedData($params);

        unset($params['tags']);
        $params['media'] = $this->prepareMediaDataForSaving($params['media']);

        $blogModel->fromArray($params);

        try {
            $this->getManager()->persist($blogModel);
            $this->getManager()->flush();