public function actionAdd()
 {
     Yii::app()->getClientScript()->registerCoreScript('jquery');
     Yii::app()->getClientScript()->registerCoreScript('jquery.ui');
     $cs = Yii::app()->clientScript;
     $cs->registerCssFile('/js/datepicker/css/' . 'datepicker.css');
     $cs->registerScriptFile('/js/' . 'books.js');
     //
     $book = new Books();
     $command = Yii::app()->db->createCommand();
     if (isset($_POST['Books'])) {
         $book->attributes = $_POST['Books'];
         if ($book->validate()) {
             $book->save();
             if (isset($_POST['add_auth']) && !empty($_POST['add_auth'])) {
                 $criteria = new CDbCriteria();
                 $criteria->compare('lastname', $_POST['add_auth']);
                 $add_author = Authors::model()->find($criteria);
                 //If author exists
                 if (!empty($add_author)) {
                     //insert link book-author to link table
                     $command->insert('lt_books_authors', array('author_id' => $add_author->id, 'book_id' => $book->id));
                 }
             }
             $this->actionIndex();
             return true;
         }
     }
     $this->render('edit', array('model' => $book));
 }
 public function actionAddNewBook()
 {
     $transaction = Yii::app()->db->beginTransaction();
     try {
         $book_model = new Books();
         $book_attributes = $_POST['Books'];
         $book_attributes['creation_date'] = date('Y-m-d H:i:s');
         $book_model->attributes = $book_attributes;
         if ($book_model->validate()) {
             if ($book_model->save()) {
                 $last_insert_book_id = $book_model->id;
                 $relation_array = array();
                 foreach ($_POST['author_list'] as $author) {
                     $relation_array[] = array('book_id' => $last_insert_book_id, 'author_id' => $author);
                 }
                 $builder = Yii::app()->db->schema->commandBuilder;
                 $command = $builder->createMultipleInsertCommand('authors_books_relation', $relation_array);
                 $command->execute();
                 $transaction->commit();
                 Yii::app()->user->setFlash(TbHtml::ALERT_COLOR_SUCCESS, 'Новая книга добавлена');
                 $this->redirect(array('library/tabs&tab_id=books'));
             }
         }
     } catch (CDbException $e) {
         $transaction->rollback();
     }
 }