ar_lazy_preload by DmitryTsepelev

Annotate Rails classes with schema and routes info. Maintained by ctran on GitHub, where it has earned 4,491 stars from the community.

Allow you to pluck attributes from nested associations without loading a bunch of records. Maintained by khiav223577 on GitHub, where it has earned 459 stars from the community.

Textacular exposes full text search capabilities from PostgreSQL, and allows you to declare full text indexes. Textacular will extend ActiveRecord with named_scope methods making searching easy and fun!. Maintained by textacular on GitHub, where it has earned 955 stars from the community.