datagridThe library allows you to easily build datagrid aka data tables with sortable columns and filtersactiverecordgemgridmongoidrailsrubytabletableview
reinRein adds bunch of methods to your ActiveRecord migrations so you can easily tame your database.activerecordconstraintsdatabaselibrarypostgresrailsruby
redis-memoA Redis-based version-addressable caching system. Memoize pure functions, aggregated database queries, and 3rd party API calls.activerecordcachecachingmemoizationperformancerailsredisreliabilityrubysql
revo-paper_trailTrack changes to your models' data. Good for auditing or versioning.activerecordauditlograilsruby
goldiloaderAutomatically eager loads Rails associations as associations are traversedactiverecordeager-loadinggemhacktoberfestperformanceruby-on-rails
valleValle automatically sets minimum and maximum values for the fields of your ActiveRecord model(s), so you shouldn't worry, that string length or ID value will exceed the permissible limit.activerecordactiverecord-modelvalidations
active_model_cachersSimply cache whatever you want by using cachers which will help you maintain cached objects and expire them when they are changed. Support Rails 3, 4, 5.activerecordcachemanagerrailsrubygems
database_consistencyProvide an easy way to check the consistency of the database constraints with the application validations.activerecordconsistencydatabaseoptimizationperformancerailsrubyruby-on-railstool