PRG BestPractice Zf2 - zend-framework2

Question

i have an best practice question.
Its clear what Post/Redirect/Get does, but what will be the bestpractice to handle them?
I think there are 2 methods to handle them.
1.) We call the prg plugin at first on controller action
2.) We first validate the post data, and only redirect to the prg-response if successfull?
My problem about this is, at
1.) We enlarge the response time because of the redirect, this is by default so i think not the best solution
2.) will create an overhead by the every time validation of the form
What did you mean is the better solution aber this case?
regards
UPDATE:
What i mean is, the normal(standard) case is something like this - http://framework.zend.com/manual/2.0/en/modules/zend.mvc.plugins.html#the-post-redirect-get-plugin.
$prg = $this->prg('url');
if ($prg instanceof Response) {
return $prg;
} elseif ($prg === false) {
return new ViewModel(array(...));
}
$form->setData($prg);
This means, that theres after every form submit an redirect executes.
Now, my idea was something like this:
$prg = $this->prg();
$form = $this->getFormLogin();
$data = ($prg instanceof ResponseInterface)
? $this->getRequest()->getPost()
: $prg;
if (false !== $data) {
$form->setData($data);
if (true === $form->isValid()) {
if ($prg instanceOf ResponseInterface) {
return $prg;
}
// Make something within the loginservice or something else
}
The idea behind this was, to only redirect for the PRG only if the form is valid, to save response time and other things (because of bootstrapping settings etc.)

Answer 1

The Zend Framework is designed based on Front-Controller pattern so its essential to redirect the page when you access different resources(controller-action).
moreover when you fire redirect(URL) function from your source code it takes minimal time when you compared the time to access the same(URL) from your browser.
You could reduce the response time to considerable amount when you use classmap_autoloading.
Updated:
for an example i take login process, in the below code i implement both HTTP get and post methods in the same action() but, you can refactor this function based on HTTP methods.
LoginController.php
public function loginAction()
{
//code
if ($request->isPost()) {
//code
if ($isValid) {
return $this->redirect()->toUrl('urUrl');
}
return $this->redirect()->toUrl('urUrl');
}
//code
return $viewModel;
}
After refactoring above code
//it used for HTTP get
public function loginAction()
{
//code
return $viewModel;
}
//it used for HTTP POST
public function loginPostAction()
{
//code
if ($notValid) {
return $this->redirect()->toUrl('urUrl');
}
$viewModel->setTemplate($viewpath);
return $viewModel;
}
You need to modify your routing configuration in such a way to handle for both HTTP get and post methods. if the request is HTTP-get the controller process the loginAction() but if its HTTP-post it process the loginPostAction()
Zend framework 2 - HTTP method Routing
Updated:
The purpose of plugin is to avoid the user to POST the data again to the browser. In your case you are trying to enable the option to POST their data when the form is not valid (you are trying to change the behaviour of PRG plugin). if you really worried about response time don't use PRG plugin. create your custom logic inside your controller-action.
--SJ