This gem will take care of scopes, validations and normalization

StringexFriendlyId is a gem for using Stringex's ingenious unicode transliterations with FriendlyId's slugging magic.

It simplifies creation of enums which are supposed to have one-to-one mapping to their keys and values.

a small ActiveRecord plugin that removes ASCII control chars from attributes

Pageviews is a page views counting gem for Rails. Log views from Rails controller actions.

Permitted and required parameters for Action Pack

strong_presenter adds a layer of presentation logic to your application, and gives you strong_parameters-like logic to determine which attributes are visible

Pluck structs from activerecord

Pluck structs from activerecord

This a ultimate set of stub extensions. Suggest any reasonable subbing and I'll try to merge it. It will start with: stub_must, stub_must_not, stub_if_def and many more

This was purpose built to extend models with subscriptions that were controlled via SalesForce

Submodel maps ActiveRecord columns to ActiveModel models.

Groups, Users, or other models can subscribe to each other.

Abstract layer for managing mailing list subscriptions

subva

This gem allows you to background any method call without having to write a special job class. Heavily inspired by the Backgroundable module in TorqueBox.

ActiveRecord and Mongoid persistence for asynchronous jobs created with sucker_punch

generate bulk insert without ActiveRecord.

Simplified version of sunspot_rails gem to enable usage of sunspot+active_record -based models in not Rails projects

Automatic association (re)indexing for your searchable Sunspot models.