Constantinopolis allows you to set constants from your ERBed YAML file. Remarkably, your constants are available not only in ruby context, but in javascript's. It works with Rails, Sinatra, or any Ruby projects.

Force loading all data from the controller by raising when the database is accessed from the view. This can help create effective database queries and help avoid SQL N+1 problems.

Conschedule library makes it easy to integrate scheduling in your Rails application, from RubyEffect (http://www.rubyeffect.com)

Geopolitical models for mongoid as a rails engine.

set default values for your active record models with a simple, concise DSL. : default :field_name => :value

Generator projects to Ruby on Rails

When object factories don't work because your data is too complex and creating manual fixtures is cumbersome and brittle: Iron Fixture Extractor (for Rails/ActiveRecord)

Rails tools I use

Better Rails console prompt.

rails model-helper to store generated content in redis, for fastaccess

It's as easy as: rails g fake posts -n 50

A simple Rails FAQ engine powered by markdown.

Allows the user to fillout a JSON database field by providing text inputs for keys and values along with Add and Remove controls. Currently requires jQuery.

A Rails engine that provides a web-based SQL query console with read-only enforcement, authorization hooks, and audit logging.

Use [...].join without worrying

A MarkDown TextEditor with jQuery and Markitup! and redcarpet

Official Ruby SDK for BrainzLab observability platform. Includes Recall (structured logging), Reflex (error tracking), and Pulse (APM with distributed tracing). Auto-instruments Rails, Sidekiq, GraphQL, Redis, and more.

Front-end bootstraper for nice looking Rails apps.

ActionController method to log per-request bloat and ActiveRecord instantiation breakdown

Adds :model_class load hook for every ActiveRecord descendant.