With symfony, you build an administration on a per-model basis. A module is generated based on a Propel object using the propel:generate-admin task:

> php symfony propel:generate-admin backend BlogArticle –module=article

note:
If you don’t see the expected look and feel (no stylesheet and no
image), this is because you need to install the assets in your project by running the plugin:publish-assets task:
$ php symfony plugin:publish-assets