CODEWITHSUNDEEP
cakephp
Stephen
Stephen

Reputation: 4813

CakePHP: Redirect not workin

I have the following code in my controller:

class ContactsController extends AppController {
    public $helpers = array('Html', 'Form', 'Session');
    public $components = array('Session');

    public function index() {
        $this->set('contacts', $this->Contact->find('all'));
    }

    public function view($id) {
        if (!$id) {
            throw new NotFoundException(__('Invalid contact'));
        }

        $contact = $this->Contact->findById($id);
        if (!$contact) {
            throw new NotFoundException(__('Invalid contact'));
        }
        $this->set('contact', $contact);
    }

    public function add() {                 
        if ($this->request->is('post')) {
            $this->Contact->create();
            if ($this->Contact->save($this->request->data)) {
                $this->Session->setFlash('Your contact has been saved.');
                $this->redirect(array('action' => 'index'));
            } else {
                $this->Session->setFlash('Unable to add your contact.');
            }
        }
    }
}

In the add() method I have the line $this->redirect(array('action' => 'index')); I'm expecting this line to redirect back to my index page within my view. But all I get is a blank white page.

Any help appreciated.

Regards, Stephen

Upvotes: 2

Views: 9094

Answers (2)

Chinmay235
Chinmay235

Reputation: 3414

After lots of research finally I got a solution for that.

Please use

ob_start(); in AppController.php

ob_start();
class AppController extends Controller {
     function beforeFilter() {
         parent::beforeFilter();
     }
}

Upvotes: 7

thaJeztah
thaJeztah

Reputation: 29137

Your code looks valid; I don't see an error in the code you provided.

There are a few possible causes;

  • there is an error somewhere else in your code, but cake php doesn't output the error message because debugging is disabled. Enable debugging by setting debugging to 1 or 2 inside app/Config/core.php - Configure::write('debug', 2);
  • you application is outputting something to the browser before the redirect header was sent. This may be caused by (non visible) white-space before or after any <?php or ?> . This will cause a 'headers already sent' warning, and the browser will not redirect. There are many questions regarding this situation here on StackOverflow, for example: How to fix "Headers already sent" error in PHP

Note; in CakePHP its good practice to put a return before any redirect statement; this will allow better Unit-testing of your application, i.e.:

return $this->redirect(array('action' => 'index'));

update; additional 'pointers' on locating the cause

Tracking these kind of problems may be troublesome, I'll add some pointers

  • If you're using the Auth or Security component, it's possible that one of these cause the 'problem' (e.g. authorization failed or the posted data is marked 'invalid', which will be handled by a 'blackHole()' callback. Disable both in your AppController to check if the problem is still present
  • If the problem is still present, it is possible that headers are being sent (as mentioned before), but no warning/error is presented. To find if and where those headers are sent, add this code to your 'add' action;

Debugging code:

if (headers_sent($file, $line)) {
    exit("headers were already sent in file: {$file}, line number: {$line}");
}

Upvotes: 18

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