.. include:: <mmlalias.txt>


Solution: Observer
==================

.. contents::
   :local:


.. literalinclude:: /trainings/material/soup/cxx/cxx-code/design-patterns-observer/code/social-db-observable.h
   :caption: :download:`/trainings/material/soup/cxx/cxx-code/design-patterns-observer/code/social-db-observable.h`
   :language: c++

.. literalinclude:: /trainings/material/soup/cxx/cxx-code/design-patterns-observer/code/social-db-observable.cpp
   :caption: :download:`/trainings/material/soup/cxx/cxx-code/design-patterns-observer/code/social-db-observable.cpp`
   :language: c++