function execute()
{
$dao = new CommentDAO();
$res = '';
$res = '{"records":' . json_encode($dao->readAll()) . '}';
return $res;
}
public static function getInstance()
{
if (!self::$instance) {
self::$instance = new CommentDAO();
}
return self::$instance;
}
/**
* Metodo del controlador Comments cuya funcionalidad es insertar un comentario
* en un post.
* Verifica que el usuario ha iniciado sesion y que el post existe
*
* @throws Exception Si el usuario no inicio sesion
* @return void
*/
public function add()
{
if (!isset($this->currentUser)) {
throw new Exception("Not in session. Adding comments requires login");
}
if (isset($_GET["id"])) {
// reaching via HTTP Post...
// Se obtiene el post de la BD
$idPost = $_GET["id"];
$post = $this->postDAO->findByIdPost($idPost);
// Si no existe el post lanza una excepcion
if ($post == NULL) {
throw new Exception("no such post with id: " . $idPost);
}
// Crea el objeto Comment
$comment = new Comment();
$comment->setDate(date("Y-m-d H:i:s"));
$comment->setContent($_POST["content"]);
$comment->setAuthor($this->currentUser->getEmail());
$comment->setIdPost($post->getIdPost());
try {
// Valida el comentario, si falla lanza una excepcion
$comment->checkIsValidForCreate();
// Guarda el comentario en la BD
$this->commentDAO->save($comment);
// Redirige al post
$this->view->redirect("posts", "viewPosts", "id=" . $post->getIdPost());
} catch (ValidationException $ex) {
$errors = $ex->getErrors();
$this->view->setVariable("comment", $comment, true);
$this->view->setVariable("errors", $errors, true);
$this->view->redirect("posts", "viewPosts", "id=" . $post->getIdPost());
}
} else {
throw new Exception("No such post id");
}
}
public function startCommentDAO()
{
$this->CommentDAO = CommentDAO::getInstance();
}