The JitPreloader has the ability to send notifications when N+1 queries occur to help guage how problematic they are for your code base and a way to remove all of the commons explicitly or automatically

Log transitions on a state machine to support auditing and business process analytics.

Ruby gem that automatically adds a lock timeout to all Active Record migrations

With it you can add the ability to create columns outside the default schema, directly in your model in a similar way that you just know in others projects like DataMapper or MongoMapper.

With it you can add the ability to create columns outside the default schema, directly in your model in a similar way that you just know in others projects like DataMapper or MongoMapper.

use pagy for cursor-based pagination with rails

Push your Active Record models' scopes up to the surface

A Postgres advisory lock client

Helps to save your eyes, when reading hardcore SQL requests in console

RGeo is a geospatial data library for Ruby. RGeo::ActiveRecord is an optional RGeo module providing some spatial extensions to ActiveRecord, as well as common tools used by RGeo-based spatial adapters.

SchemaValidations extends ActiveRecord to automatically create validations by inspecting the database schema. This makes your models more DRY as you no longer need to duplicate NOT NULL, unique, numeric and varchar constraints on the model level.

Mine remote data into your ActiveRecord models. You can also perform associations and convert units.

SQL input/output plugin for Fluentd event collector

Log transitions on a state machine to support auditing and business process analytics.

Log transitions on a state_machines to support auditing and business process analytics.

By default ActiveRecord stores the base class in polymorphic type columns when using single table inheritance, which can have performance implications. This gem adds a store_base_sti_class configuration option that controls whether ActiveRecord stores the base class or the actual class, defaulting to the original behavior for backward compatibility.

Translatable columns for Rails 4.2 or better, stored in the model table itself.

Introspects your database string field maximum lengths and automatically defines length validations.

Suffering from ActiveRecord instantiation anxiety? Try Valium. It saves your CPU and memory for more important things, retrieving just the values you're interested in seeing.

Backported from Rails 5.0 to use with 4.x versions