public function save()
{
$commentmapper = new CommentMapper($this->db);
$comment = new Comment();
$comment->user_id = $this->user_id;
$comment->file_id = $this->file_id;
$comment->comment = $this->comment;
$commentmapper->save($comment);
}
/**
* Action to adds a comment to a post
*
* This method should only be called via HTTP POST.
*
* The user of the comment is taken from the {@link BaseController::currentUser}
* property.
* The expected HTTP parameters are:
* <ul>
* <li>id: Id of the post (via HTTP POST)</li>
* <li>content: Content of the comment (via HTTP POST)</li>
* </ul>
*
* The views are:
* <ul>
* <li>posts/view?id=post: If comment was successfully added of,
* or if it was not validated (via redirect). Includes these view variables:</li>
* <ul>
* <li>errors (flash): Array including per-field validation errors</li>
* <li>comment (flash): The current Comment instance, empty or being added</li>
* </ul>
* </ul>
*
* @return void
*/
public function add()
{
if (!isset($this->currentUser)) {
throw new Exception("Not in session. Adding posts requires login");
}
if (isset($_POST["id"])) {
// reaching via HTTP Post...
// Get the Post object from the database
$postid = $_POST["id"];
$post = $this->postmapper->findById($postid);
// Does the post exist?
if ($post == NULL) {
throw new Exception("no such post with id: " . $postid);
}
// Create and populate the Comment object
$comment = new Comment();
$comment->setContent($_POST["content"]);
$comment->setAuthor($this->currentUser);
$comment->setPost($post);
try {
// validate Comment object
$comment->checkIsValidForCreate();
// if it fails, ValidationException
// save the Comment object into the database
$this->commentmapper->save($comment);
// POST-REDIRECT-GET
// Everything OK, we will redirect the user to the list of posts
// We want to see a message after redirection, so we establish
// a "flash" message (which is simply a Session variable) to be
// get in the view after redirection.
$this->view->setFlash("Comment \"" . $post->getTitle() . "\" successfully added.");
// perform the redirection. More or less:
// header("Location: index.php?controller=posts&action=view&id=$postid")
// die();
$this->view->redirect("posts", "view", "id=" . $post->getId());
} catch (ValidationException $ex) {
$errors = $ex->getErrors();
// Go back to the form to show errors.
// However, the form is not in a single page (comments/add)
// It is in the View Post page.
// We will save errors as a "flash" variable (third parameter true)
// and redirect the user to the referring page
// (the View post page)
$this->view->setVariable("comment", $comment, true);
$this->view->setVariable("errors", $errors, true);
$this->view->redirect("posts", "view", "id=" . $post->getId());
}
} else {
throw new Exception("No such post id");
}
}
