Arvados

This is a view of the Logs table.

• "Group activity" is a report for a single group. Includes all Log entries whose object has owner_uuid = {this_group_uuid}.
• "User activity" is a report for a user. Includes Log entries whose object has owner_uuid in ({all groups owned by this user}).
• Probably OK if the selection of objects is slightly fuzzy at this stage: e.g., if you show logs for any object whose modified_by_user_uuid is this user, an object which is undergoing edit wars could disappear and reappear on activity logs, and that's OK. We can revisit the edge cases after getting some input/experience (and possibly a new metadata database that makes different queries easier).
• Theoretically Log entries will have a "summary" attribute which is human-readable.
• Presumably, Workbench's LogsHelper gets a method that renders nice html for a given Log entry.

• Sharing settings changed for this group (So-and-so added/removed)
• Item added/removed from group
• Login by user that this group can_read