db_leftovers | Rails without the data loss | Application Framework library

db_leftovers is a Ruby library typically used in Server, Application Framework, Ruby On Rails applications. db_leftovers has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

db\_leftovers lets you define indexes, foreign keys, and check constraints for your rails app in one place using an easy-to-read dsl, then run a rake task to bring your database up-to-date. whenever you edit the dsl, you can re-run the rake task and db\_leftovers will alter your database accordingly. this is useful because of the following limitations in vanilla rails (note that very recently rails has started to add some of these, e.g. add_foreign_key):. that last point deserves some elaboration. first, using add_index in your migrations is bug-prone because without rare developer discipline, you wind up missing indexes in some environments. (my rule is "never change a migration after a git push," but i haven’t seen this followed elsewhere, and there is nothing that automatically enforces it.) also, since missing indexes don’t cause errors, it’s easy to be missing one and not notice until users start complaining about performance. second, scattering add_index methods throughout migrations doesn’t match the workflow of optimizing database queries. hopefully you create appropriate indexes when you