Restrict the values assignable to ActiveRecord attributes or associations

Automatically increments an ActiveRecord column

This gem adds to carrierwave a storage facility which will use the PostgreSQL's oid datatype to reference a large object residing in the databse. It supports up to 2GB files, though it's better suited for smaller ones. Makes life easier for fast prototyping and put all your data in the same place...

Gems main responsibility is to provide service for copying Carrierwave files between records

A modern profiler for your Rails application

Power tools for ActiveRecord relations (scopes)

integrate the elastic search engine with rails

Instruments for Factory Bot

Preseed reusable data for factory girl

Adds query origin tracing to your logs.

FixtureBot gives you a Ruby DSL that feels like FactoryBot, backed by the speed of Rails fixtures. Define your test data in Ruby and generate standard YAML fixture files.

FixtureKit provides lightning-fast test setup by caching database records. Define fixtures using any tool (FactoryBot, raw ActiveRecord, etc.), and FixtureKit caches the SQL to replay in subsequent test runs.

https://github.com/tsukasaoishi/fresh_connection

Build Relay-compatible GraphQL schemas based on ActiveRecord models

Rails style structure for GraphQL API.

Instructure-maintained fork of delayed_job

Builds ActiveRecord outer joins from association paths and provides references to table aliases.

kaminari-grape connects Kaminari and Grape

Double entry bookkeeping with Rails

A user-centric voting extension for Rails 3 applications.