adding useful snippets

source/development/useful-snippets.rst

@@ -0,0 +1,35 @@
+
+
+
+
+Useful snippets
+###############
+
+
+Security
+********
+
+Get the circles a user can reach
+================================
+
+.. code-block:: php
+
+   use Symfony\Component\Security\Core\Role\Role;
+
+   $authorizationHelper = $this->get('chill.main.security.authorization.helper');
+   $circles = $authorizationHelper
+       ->getReachableCircles(
+             $this->getUser(), # from a controller
+             new Role('CHILL_ROLE'), 
+             $center 
+       );
+
+
+Controller
+**********
+
+Secured controller for person
+=============================
+
+.. literalinclude:: useful-snippets/controller-secured-for-person.php
+   :language: php