- # Used in both prune/rm.
- def list_users()
- usernames = []
-
- # Just assume PostgreSQL for now.
- begin
- connection = PGconn.connect(@db_host,
- @db_port,
- @db_opts,
- @db_tty,
- @db_name,
- @db_user,
- @db_pass)
-
- sql_query = "SELECT username FROM users;"
- connection.query(sql_query) do |result|
- usernames = result.field_values('username')
- end
-
- connection.close()
- rescue PGError => e
- # Pretend like we're database-agnostic in case we ever are.
- raise DatabaseError.new(e)
- end
-
- return usernames
- end
-