generator:
  class:              sfPropelAdminGenerator
  param:
    model_class:      User
    theme:            default

    list:
      display:        [id, name, username, isadmin, ~linked_usergroups]

    edit:
      display:        [name, username, passhash, isadmin, linked_usergroups]
      fields:
        linked_usergroups: { name: User Groups, help: Hold ctrl to select multiple, type: admin_select_list, params: through_class=UserUsergroup }