Delete
Book/delete is functions in controller
Delete
Then change your delete method as public and send ID param there like:
public function delete($book_id){
echo $book_id;
}
Related
I have set the variable in module.php which i can get in the layout.
now i want this variable in my controller also.
public function onBootstrap(MvcEvent $e) {
$eventManager = $e->getApplication()->getEventManager();
$moduleRouteListener = new ModuleRouteListener();
$moduleRouteListener->attach($eventManager);
// $this->initAcl($e);
$e->attach(MvcEvent::EVENT_RENDER, array($this, 'setVariableToLayout'), 100);
}
public function setVariableToLayout(MvcEvent $event) {
$viewModel = $event->getViewModel();
$viewModel->setVariables(array(
'controller' => $event->getRouteMatch()->getParam('controller'),
));
}
How can i get that variable in all my controller.
if i try to get the variable in controller like print_r($controller) or print_r($this->controller) it gives undefined error.
This is module.php file and i have set controller as which controller is requested., function called from onBootstrap
I do not understand the need for the controller name in the view. The view should only care about the parameters it requires to render correctly; not which controller was dispatched.
I'm assuming you are doing some kind of conditional view logic if ($controller == 'foo') then this should be shouting very loudly that you need a different ViewModel for each 'state'. If they are shared view scripts then take a look into view helpers or view partials.
With the above said; The only error I can see is:
$e->attach(MvcEvent::EVENT_RENDER, ....
Should be:
$eventManager->attach(MvcEvent::EVENT_RENDER, ....
Perhaps this was a typo, however to clarify:
The EventManager manages references to registered event listeners.
The Event is a container that provides metadata regarding the event (which is then injected into the event listener when trigger() is called)
I have a controller action helper where i save a user object into the view (in an init function) like this:
Zend_Layout::getMvcInstance()->getView()->user = $user;
I'd like to access the object in a preDispatch method of a controller plugin so I don't have to look up the user in the database. I tried doing so like this:
$user = Zend_Layout::getMvcInstance()->getView()->user;
But it's returning a null object. I'm hoping its because I'm doing this wrong and not because I've programmed a catch 22 inside my login logic. Is there another way to access the object?
I think putting the following methods into your action helper may help you here.
private $user
public function init()
{
$this->user = new user();
}
public function preDispatch()
{
$user = $this->user;
//Do whatever you wish with the user object.
// although you probably don't need to do anything.
}
public function direct()
{
Zend_Layout::getMvcInstance()->getView()->user = $this->user;
//alternatively just return the user object or whatever you want to do
}
Then once your helper is registered you can simply do $this->_helper->helperName() in your controller to put the user object into the view.
Mathew WeirO'Phiney has a good explanation of action helpers on devzone. Especially the purpose of the direct() method.
Yes, good approach is to have a singleton class for current logged in user; in such a case it will be accessible anywhere - plugins, views, forms.
I wrote a plugin that needs to set a property on the controller that's currently being dispatched. For example, if my plugin is:
class Application_Plugin_Foo extends Zend_Controller_Plugin_Abstract
{
public function dispatchLoopStartup(Zend_Controller_Request_Abstract $request)
{
// Get an instance of the current controller and inject the $foo property
// ???->foo = 'foo';
}
}
I want to be able to do this:
class IndexController extends Zend_Controller_Action
{
public function indexAction()
{
$this->view->foo = $this->foo;
}
}
}
Any help is greatly appreciated!
The action controller is not directly accessible directly from a front-controller plugin. It's the dispatcher that instantiates the controller object and he doesn't appear to save it anywhere accessible.
However, the controller is accessible from any registered action helpers. Since action helpers have a preDispatch hook, you could do your injection there.
So, in library/My/Controller/Helper/Inject.php:
class My_Controller_Helper_Inject extends Zend_Controller_Action_Helper_Abstract
{
public function preDispatch()
{
$controller = $this->getActionController();
$controller->myParamName = 'My param value';
}
}
Then register an instance of the helper in application/Bootstrap.php:
protected function _initControllerInject()
{
Zend_Controller_Action_HelperBroker::addHelper(
new My_Controller_Helper_Inject()
);
}
And, as always, be sure to include My_ as an autoloader namespace in configs/application.ini:
autoloaderNamespaces[] = "My_"
Then, in the controller, access the value directly as a public member variable:
public function myAction()
{
var_dump($this->myParamName);
}
One thing to note: Since the helper uses the preDispatch() hook, I believe it will get called on every action, even an internal forward().
Browsing through the API, I didn't find a way to reach the controller directly (I'm guessing this loop is performed before the controller exists). What I could find is almost as easy to access, albeit with a bit different syntax.
Via request params
class Application_Plugin_Foo extends Zend_Controller_Plugin_Abstract
{
public function dispatchLoopStartup(Zend_Controller_Request_Abstract $request)
{
$yourParam = 'your value';
if($request->getParam('yourParam')) {
// decide if you want to overwrite it, the following assumes that you do not care
$request->setParam('yourParam', $yourParam);
}
}
}
And in a Zend_Controller_Action::xxxAction():
$this->getParam('yourParam');
Via Zend_Controller_Action_Helper_Abstract
There's another way mentioned in MWOP's blog, but it takes the form of an action helper instead: A Simple Resource Injector for ZF Action Controllers. His example would let you access any variable in Zend_Controller_Action as $this->yourParam.
I want to display a page that has 2 forms. The top form is unique to this page, but the bottom form can already be rendered from a different controller. I'm using the following code to call the action of the other form but keep getting this error:
"Message: id is not specified"
#0 .../library/Zend/Controller/Router/Rewrite.php(441): Zend_Controller_Router_Route->assemble(Array, true, true)
My code:
First controller:
abc_Controller
public function someAction()
{
$this->_helper->actionStack('other','xyz');
}
Second controller:
xyz_Controller
public function otherAction()
{
// code
}
Desired results:
When calling /abc/some, i want to render the "some" content along with the xyz/other content. I think I followed the doc correctly (http://framework.zend.com/manual/en/zend.controller.actionhelpers.html) but can't find any help on why that error occurs. When I trace the code (using XDebug), the xyz/other action completes ok but when the abc/some action reaches the end, the error is thrown somewhere during the dispatch or the routing.
Any help is greatly appreciated.
You can accomplish this in your phtml for your someAction. So in some.phtml put <?php echo $this->action('other','xyz');?> this will render the form found in the otherAction of XyzController
The urge to do something like this is an indication you're going about it in totally the wrong way. If you have the urge to re-use content, it should likely belong in the model. If it is truly controller code it should be encapsulated by an action controller plugin
In phtml file u can use the $this->action() ; to render the page and that response would be added to current response ..
The syntax for action is as follows::
public function action($action, $controller, $module = null, array $params = array())
You can create new object with second controller and call its method (but it`s not the best way).
You can extend your first controller with the second one and call $this->methodFromSecond(); - it will render second form too with its template.
BTW - what type of code you want to execute in both controllers ?
Just an update. The error had absolutely nothing to do with how the action was being called from the second controller. It turns out that in the layout of the second controller, there was a separate phtml call that was throwing the error (layout/abc.phtml):
<?php echo $this->render('userNavigation.phtml') ?>
line of error:
echo $this->navigation()->menu()->renderMenu(...)
I'll be debugging this separately as not to muddy this thread.
Thanks to Akeem and hsz for the prompt response. I learned from your responses.
To summarize, there were 3 different ways to call an action from an external controller:
Instantiate the second controller from the first controller and call the action.
Use $this->_helper->actionStack
In the phtml of the first controller, action('other','xyz');?> (as Akeem pointed out above)
Hope this helps other Zend noobs out there.
Hm I can't find and idea why you need to use diffrent Controlers for one view. Better practise is to have all in one Controller. I using this like in this example
DemoController extends My_Controller_Action() {
....
public function indexAction() {
$this->view->oForm = new Form_Registration();
}
}
My_Controller_Action extends Zend_Controller_Action() {
public function init() {
parent::init();
$this->setGeneralStuf();
}
public function setGeneralStuf() {
$this->view->oLoginForm = new Form_Login();
}
}
This kind of route definition:
routes.abc.route = "abc/buy/:id/*"
routes.abc.defaults.controller = "deal"
routes.abc.defaults.action = "buy"
routes.abc.reqs.id = "\d+"
requires a parameter in order to function. You can do this with actionStack but you can also specify a default id in case that none is provided:
$this->_helper->actionStack('Action',
'Controller',
'Route',
array('param' => 'value')
);
routes.abc.defaults.id = "1"
For Me this worked like a charm
class abcController extends Zend_Controller_Action
{
public function dashBoardAction()
{
$this->_helper->actionStack('list-User-Data', 'xyz');
}
}
class XyzController extends Zend_Controller_Action {
public function listUserDataAction()
{
$data = array('red','green','blue','yellow');
return $data;
}
}
i am writing an action helper and i need to call another action helper from within that helper. but i dont know how. here in the sample code:
class Common_Controller_Action_Helper_SAMPLE extends Zend_Controller_Action_Helper_Abstract
{
protected $_view;
public function __construct(Zend_View_Interface $view = null, array $options = array())
{
$this->_view = $view;
}
public function preDispatch()
{
$flashMessenger = $this->_helper->FlashMessenger; // IT IS NULL
}
}
Use the action helper broker:
$flashMessenger =
Zend_Controller_Action_HelperBroker::getStaticHelper('FlashMessenger');
You can also use getActionController to get a reference back to the actioncontroller you were using for any methods you'd normally use there.
In addition to mercator's answer, add your method after, see example below:
Zend_Controller_Action_HelperBroker::getStaticHelper('FlashMessenger')->myMethod();
You can call it in this way:
$this->_actionController->OtherActionHelper();
The _actionController property references the actual action controller.