Whenever you need assign an association by its attribute, like name, this gem comes to business.

Abstracted has a lot of inspiration from gems like resources_controller by Ian White!

Provides services for the mass-import of complex relational data

A Rails engine gem for deriving discrete data points from narrative text via natural language processing (NLP). The gem includes a user interface to present the abstracted data points for confirmation/revision by curator.

A patch for Rails to support using a public ID column instead of ID for use with accepts_nested_attributes_for

Use the policy pattern to define access control mechanisms in Rails. Store user-level, group-level, or org-level permission on any given record or concept in the database with ultra-fast lookups.

Lightweight administration on top of lobby-gem

ActionController is great, but could be better. Here are some tweaks for it.

Easily filter, sort, and paginate collections.

CMS functionality based on ActiveAdmin

Validate your ActiveAdmin resources through dry-validation

A collection of styles and scripts that make Active Admin better.

Provides easy DSL integration between ActiveAdmin & workflow

Application framework for Rails

Prevent database records from being destroyed.

Provides async methods ruby objects for queuing background jobs. Currently supports Resque. Bonus: callback hooks for ActiveRecord objects

Library for auditing record changes.

Generate and access ActiveModel::Errors like error messages.

Fast JSON serializer for nested PORO and ActiveRecord Objects supporting decoration, field filters, record filters and caching

ActiveFilter is a Rails engine for allowing users to filter scope dynamically.