sonata-project/SonataAdminBundle — pull request #528 by Fran6co (2012-01-30 15:22:41+00:00)
Title: Added collection count when adding new rows to a collection.

This makes possible to use custom scripts for each row, as it allows to have unique ids for each row.

Using http://symfony.com/doc/current/reference/forms/types/collection.html#adding-and-removing-items as a reference.