Easy backends with Symfony2 and the Sonata Admin bundle

The document discusses the SonataAdminBundle for Symfony2, which provides a backend interface for managing objects. It introduces common problems with backend administration and describes how SonataAdminBundle addresses these issues by generating admin classes and CRUD interfaces. Key features covered include listing, filtering, ordering and editing objects, as well as batch actions, validation, translations and customization options. While powerful, the document notes the bundle has some complexity and lack of documentation.