Has Placeholder Image is a Ruby on Rails gem that allows developers to generate placeholder images for models depending on the title or name attributes of model.

Generate random tokens (or use your own) for any ActiveRecord model. Hashes and salts the token before storage in the database using the same methodology as has_secure_password.

Allows for the easy creation and use of random, unique record identifiers so external entities cannot make inferences about your data based on sequential ID's

Add ability to draft/publish/withdraw/embargo models

Creates random tokens for model attributes in Ruby on Rails

This gem adds ability to construct search objects for indexed models, build search forms and execute searches. It works with sunspot, inherited_resources and simple_form/formtastic

Provides Rails 4 has_secure_password mixin for Rails 2. Requires Rails 2.1 or higher.

Drop-in replacement for has_secure_password that uses argon2

HasSecureUuid provides you an easily way to generate random uuids for any model in ruby on rails. **SecureRandom::uuid** is used to generate a unique uuid, so collisions are highly unlikely.

Add secure encrypted fields to protect sensitive information in database

Adds dynamic attributes through serialize. This way, it's in one table, and it's still trivial to track changes to your records.

parent.children.where.not(id: self.id), extended to n parents

Extends model, controller, helper and routes to handle the toggle of a star to favorite a model.

HasStateMachine uses ruby classes to make creating a finite state machine in your ActiveRecord models a breeze.

has_sti provides helper methods for Single Table Inheritance models of Active Record. It creates methods that allow to determine exact type of model and scopes that make easy to find records of certain type.

Simple tagging with contexts.

Extend ActiveRecord models to generate uniq secure tokens before saving

Identifies your active records with a random token. For more information, please see the documentation.

Adds validations on URL attributes for ActiveRecord models. URL scheme will be checked and added before updating the database if necessary. A raw_attribute method will also be added to display the url without HTTP(S) scheme or trailing slash.

has_validated_attributes is a Ruby on Rails gem that lets you validate your fields.