search for: current_clust

There''s a field in my User model that sometimes needs bulk updates: User.update_all("cluster = #{new_cluster}", "cluster = # {current_cluster}") Now, suppose user with id 37 is affected by that particular update_all and updates his profile: 1. user 37 is read 2. update_all happens and changes 37''s cluster asynchronously 3. user 37 is saved now user 37 belongs to the wrong cluster. Unlikely but possible. Is...