Controllers

Access Get/Post Data

In the controller:

$exampleGet = $this->get['example'];
$examplePost = $this->post['example'];

There is also a postData attribute that is set to the contents of $_POST['data'] and $_FILES['data'], with some remapping of the $_FILES['data'] so that it matches what's in $_POST['data'].

Example usage of postData:

if (!empty($this->postData)) {
    // User submitted form
    $book = new Book();
    $book->setFields($this->postData['book']);
    if ($book->save()) {
        Messenger::addFlash('message', 'Book saved successfully.');
        $this->redirect('/book/view/' . $book->getBookId());
        exit();
    } else {
        $this->setVar('errors', $book->getValidationErrors());
    }
}

Manually invoke (or disable) a view

The view corresponding to the current action is automatically invoked by default.

You can force a view to load at any time (thus disabling the automatic invocation):

$this->loadView($this->controllerName . '/custom_view');

You can also disable any view from loading:

$this->loadDefaultView = false;

Changing/Disabling the Layout

You can change the layout in the controller at any time with:

$this->setLayout('new_layout');

You can disable it by setting it to null (the default):

$this->setLayout(null);

It probably makes most sense to specify a default layout in an AppController and then override it on an as-needed basis:

<?php
class AppController extends Lvc_Controller {
    protected $layout = 'default';
}
?>

Passing Variables to the View

In the controller:

$this->setVar('message', 'Weeeee!');

In the view:

<?php echo $message ?>

You can also build an array of variables and set them en masse:

$data = array();
$data['error'] = '';
$data['message'] = 'Weeeeeeeeeeee!';
$data['userName'] = 'Nobody';
$this->setVars($data);

Setting Layout Variables

In the controller:

$this->setLayoutVar('layoutVarName', 'value');

In the layout:

<?php echo $layoutVarName ?>

Redirecting

In the controller:

$this->redirect($url);
exit(); // redirect does not exit automatically so that post script can be run.

Requesting a sub action

Inside a controller action method:

$request = new Lvc_Request();
$request->setControllerName($this->controllerName);
$request->setControllerParams($this->params);
$request->setActionName('some_other_action');
$request->setActionParams($params); // Set optional params
$output = $this->getRequestOutput($request);

Or, you can pass the request attributes to the requestAction() method:

$output = $this->requestAction($actionName);
$output = $this->requestAction($actionName, $actionParams, $controllerName, $controllerParams);

Execute code before/after an action

To execute code before an action, override the beforeAction() method:

protected function beforeAction() {
    parent::beforeAction(); // chain to parent
    $this->setLayoutVar('pageTitle', 'Default Title');
}

To execute code after an action, override the afterAction() method:

protected function afterAction() {
    parent::afterAction(); // chain to parent
    // do some stuff
}