This gem will give you only two scopes and a method for handling published/unpublished stuff. Nothing remarkable bur saved me a lot of typing when I wrote it for a project with an huge number of publishable models. Suggestions are more than welcome.

Rails gem that adds functionality to make Active Record models publishable

Acts as published beahviour for active record models.

A gem for Ruby on Rails that makes managing devices and push notifications for both iOS and Android easy and reliable.

ActsAsRailable gem provides extended methods for rails.

Orders ActiveRecord items by floating ranks for spaces in-between items. Influenced by gem ActsAsList. The floating rank allows inserting items at arbitrary positions without reordering items. Thus, reducing the number of WRITE queries.

Allows records to be marked as readable. Optimized for bulk, 'mark all as read' operations

Simple recaptcha plugin which allows to add reCAPTCHA validations to your forms

Insert ActsAsRecommended description.

ActsAsReferred adds ability to AR-descendants to be supplied with a Referee - referrer and e.g. campaignin

Acts_as_relatable gem allows you to link/relate AR objects together easily with polymorphic associations.

Make Active Recored acts as relationable.

Overloads the create_or_update_without_callbacks method to allow duplicate records to be replaced without needing to always use find_or_create_by.

Use a field to store plain-text roles and manage them easily

Wraps RoleModel up to make role based authorization really easy in Rails >= 3.2.

A rails plugin use redis to sort models on real time.

use the type of integer in the STI(Single Table Inheritance)

Sanitizable concern to sanitize attributes the way you like

SCD models have identities and multiple time-limited iterations (revisions) per identity

Description of ActsAsScope.