Twig Trying to Render Json Model

[tom-martin7]

Hi,

I have just came across an issue where the twig strategy is trying to render a Json Model even though this should be possible.

The fix should be as follows: ZfcTwig\View\TwigStrategy::selectRenderer

This function should have the following before you run the can render function.

if ($e->getModel() instanceof \Zend\View\Model\JsonModel)
{
    return false;
}

Many Thanks,
Tom

[lku]

It's trying to render it only if model's template exists, which seems logical to me.

[kusmierz]

How to prevent it? I would like to have one action for twig and json respond. How could I do that?

[spiffyjr]

This is just internal to how ZF2 works. If you return a JsonModel then the JsonViewStrategy is used. If you return a ViewModel then the default Twig/PhpRendererStrategy is used.

You need to have your strategies registered in the right order. JsonViewStrategy should be set in 'view_manager' => 'strategies' earlier than Twig is loaded.

[kusmierz]

I'm not sure. Try ie. https://github.com/zendframework/ZendSkeletonApplication, install it, but in config/application.config.php file put ZfcTwig at the beginning of the modules (just before Application module).

[skl]

I was also affected by this and in my case changing the order of the modules broke my app. To get around this I registered a ModuleEvent listener that prioritises ViewJsonStrategy over ZfcTwigViewStrategy in order to satisfy the ZF2 requirement that @spiffyjr mentions above.

Here's a gist for it.