Soluciones/suscribir — pull request #7 by esaborit4code (2014-02-26 12:29:56+00:00)
Title: Using rails observers

Finally I only added a Rails observer as a mediator because Rails observers are auto instantiated and you lose control over the observer instance in case you need to pass params to the constructor (like `SuscripcionAddToSendGridObserver` allows).