CODEWITHSUNDEEP
symfonydependency-injectiondoctrine
fesja
fesja

Reputation: 3313

Access Session from EntityRepository

I'm using Symfony2 with Doctrine2. I want to achieve the following:

 $place = $this->getDoctrine()->getRepository('TETestBundle:Place')->find($id);

And on that place will be the info of the place (common data + texts) on the user language (in session). As I am going to do that hundreds of times, I want to pass it behind the scenes, not as a second parameter. So an English user will view the place info in English and a Spanish user in Spanish.

One possibility is to access the locale of the app from an EntityRepository. I know it's done with services and DI but I can't figure it out!

// PlaceRepository
class PlaceRepository extends EntityRepository
{
    public function find($id)
    {
        // get locale somehow
        $locale = $this->get('session')->getLocale();

        // do a query with the locale in session
        return $this->_em->createQuery(...);
    }
}

How would you do it? Could you explain with a bit of detail the steps and new classes I have to create & extend? I plan on releasing this Translation Bundle once it's ready :)

Thanks!

Upvotes: 2

Views: 1887

Answers (1)

Clay Loveless
Clay Loveless

Reputation: 61

I don't believe that Doctrine is a good approach for accessing session data. There's just too much overhead in the ORM to just pull session data.

Check out the Symfony 2 Cookbook for configuration of PDO-backed sessions.

Rather than setting up a service, I'd consider an approach that used a Doctrine event listener. Just before each lookup, the listener would pick out the correct locale from somewhere (session, config, or any other place you like in the future), inject it into the query, and like magic, your model doesn't have to know those details. Keeps your model's scope clean.

You don't want your model or Repository crossing over into the sessions directly. What if you decide in the future that you want a command-line tool with that Repository? With all that session cruft in there, you'll have a mess.

Doctrine event listeners are magically delicious. They take some experimentation, but they wind up being a very configurable, out-of-the-way solution to this kind of query manipulation.

UPDATE: It looks like what you'd benefit from most is the Doctrine Translatable Extension. It has done all the work for you in terms of registering listeners, providing hooks for how to pass in the appropriate locale (from wherever you're keeping it), and so on. I've used the Gedmo extensions myself (though not this particular one), and have found them all to be of high quality.

Upvotes: 1

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