public function actionBooks()
{
$session = Yii::$app->session;
$search = new SearchForm();
if ($search->load(Yii::$app->request->post()) && $search->validate()) {
$session['search'] = Yii::$app->request->post();
} elseif (!empty($session['search']['SearchForm'])) {
$search->load($session['search']);
}
if (empty($session['search']['SearchForm'])) {
$books = Books::find()->all();
} else {
$books = Books::findWithFilters($session['search']['SearchForm']);
}
$authors = Authors::find()->all();
$selected_authors = array();
foreach ($authors as $author) {
$selected_authors[$author->id] = $author['firstname'] . " " . $author['lastname'];
}
return $this->render('books', ['model' => $search, 'authors' => $selected_authors, 'books' => $books]);
}
