With Symfony2, i use "FOSuserBundle". In my Entity "Group", i have an array column named "roles". this is "ArrayCollection" type. How to edit this field "roles" with Admin Generator like "Sonata Admin" when i want to create or edit "Group".
I try with "sonata_type_collection" type but no success.
Do you have an example or link who explain how to do this ?
PS: "roles" use "DC2Type:array" in Group table with MySQL.