Ignore cache on a specific component

If you globally activated cache on your application but need a specific component to skip cache:

On app_name/modules/module_name/config/cache.yml:

_componentName:
  enabled: false

Note: this will deactivate cache on _componentName.php

How to add a custom filter for the admin listing [Propel]

Tutorial que explica para o Propel, como acrescentar novos campos para filtrar valores no generate-admin: http://robert-says.com/2010/03/symfony-how-to-add-a-custom-filter-for-the-admin-listing/