New in Symfony 2.6: New shortcut methods for controllers

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// Symfony 2.6
return $this->redirectToRoute('homepage');

return $this->redirectToRoute('product_show', array('id' => 12), 301);

// Previous Symfony versions
return $this->redirect($this->generateUrl('homepage'));

return $this->redirect($this->generateUrl('product_show', array('id' => 12)), 301);

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// Symfony 2.6
$this->addFlash('info', 'The item was created successfully.');

// Previous Symfony versions
$this->get('session')->getFlashBag()->add('info', 'The item was created successfully.');

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// Symfony 2.6
if ($this->isGranted('ROLE_ADMIN')) {
    // ...
}

// Previous Symfony versions
if ($this->get('security.context')->isGranted('ROLE_ADMIN')) {
    // ...
}

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// Symfony 2.6
$this->denyAccessUnlessGranted('ROLE_EDIT', $item, 'You cannot edit this item.');

// Previous Symfony versions
if (false === $this->get('security.context')->isGranted('ROLE_EDIT', $item)) {
    throw $this->createAccessDeniedException('You cannot edit this item.');
}

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// Symfony 2.6
$this->isCsrfTokenValid('token_id', 'TOKEN');

// Previous Symfony versions
use Symfony\Component\Security\Csrf\CsrfToken;

$this->get('security.csrf.token_manager')->isTokenValid(new CsrfToken('token_id', 'TOKEN'))