Symfony2 - passing an object from Event Listener to Controller

Question

I have an Event Listener that finds an entity object in the database an checks whether current user is authorized for it. I need this object further in Controller, so my question is: what is the best way to pass an object from Event listener to Controller?

I have several options, but none of them is good enough.

In Controller, using repository to fetch the same object from database second time - which is actually less coupled but produces additional DB query.
Serializing object in Event Listener and passing it to Controller in request.
Making a service that will set() object in Event Listener and get() in Controller - but it looks like architectural flaw to assign service for such purposes.

Maybe anyone has better solution?

how does the application know if the current user is authorized for it? — Frank B
– Frank B, Commented Oct 12, 2015 at 11:37
By registering the event listener to service container and than use the service container in controller? Link — Harsh Makani
– Harsh Makani, Commented Oct 12, 2015 at 11:40
i protect my objects with custom voters: symfony.com/doc/current/cookbook/security/voters.html — Frank B
– Frank B, Commented Oct 12, 2015 at 11:47
@Frankbeen: actually, this is not about authorization, but yes, I use security voters, and still need some processing before and after, so it looks like job for Pre-filters. — Damaged Organic
– Damaged Organic, Commented Oct 12, 2015 at 12:32

Carlos Granados · Accepted Answer · 2015-10-12 11:41:53Z

1

An Event Listener is a service like any other service. You can save your object to a protected member of your service, create a getter for it and in the controller get this service and retrieve the objet using the getter

answered Oct 12, 2015 at 11:41

Carlos Granados

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Damaged Organic Over a year ago

Indeed... But isn't this implicit in some way? I mean, Event Listener is not responsible for storing objects.

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