Add ability to use custom templates for message/template items about adminthemebundle HOT 1 OPEN

A general solution would be to use a single kind of navbar event which provides some kind of attributed storage (like the session flashbag does).
Like so:

$event->getBag()->add('notification', new Notification()); 

Navbar segments would then be rendered using the attribute name to determine the actual twig template like so:

{% for type, items in bag %}
{% include 'YourBundle::' ~ type ~ 'html.twig' with { "items" : items } %}
{%endfor %}

In order to simplify the actual template markup, using a macro or generalized embed might be useful.

from adminthemebundle.