anchor.diff:  -mod_description("Ginger Base").
   -mod_prio(250).
   -mod_depends([mod_content_groups, mod_acl_user_groups]).
  --mod_schema(6).
  +-mod_schema(7).
   
   -export([
       init/1,
  
positive.code:                     {acl_user_group_id, acl_user_group_anonymous},
                      {actions, [view]}
                  ]},
                  %% Members can edit their own profile. This requires insert rights on
                  %% category person because of acl_rsc_update_check:acl_rsc_update_check/3.
                  {rsc, [
                      {acl_user_group_id, acl_user_group_members},
                      {actions, [insert, link]},
                      {category_id, person}
                  ]},
                  %% Members can upload media, for instance a profile picture.
                  {rsc, [
  
negative.code:                     {actions, [insert]},
                      {category_id, media}
                  ]},
                  {rsc, [
                      {acl_user_group_id, acl_user_group_members},
                      {actions, [update, delete]},
                      {category_id, media},
                      {is_owner, true}
                  ]},
                  %% Editors can edit everything, including resources created by other editors
                  {rsc, [
                      {acl_user_group_id, acl_user_group_editors},
                      {actions, [view, insert, update, delete, link]}
                  ]},
  