Dynashard allows you to shard your ActiveRecord models. Models can be configured to shard based on context that can be defined dynamically.

The Dynattribs Gem (Dyanmic Attributes) provide a database backed attributes to ActiveRecord::Base classes, without having to declare table columns for each attribute. A bit of NoSQL data flexibility for traditional database backed ActiveRecord classes.

"Provide e-commerce structure and different payment methods"

Improved batch processing in Rails

Batch Processing of Records with Blocks in Rails

Validates associations listed in rails includes

Eager Counting allows you to easily perform complex association grouped count queries.

add eager loading functionality to ActiveRecord's polymorphic association.

Rails Model integration for Elasticsearch.

Easy, flexible A/B testing and feature toggle for Rails

Shorthand references to `arel_table` in ActiveRecord for lazy people, like me.

Filter and sort ActiveRecord model for Rails app with Bootstrap view helpers

Define a model class, allowing declare a subclass of this and implement simple methods to filter each field model

A simple gem that allows active record models to contain a key / value store for configuration

High level plug-and-play interface for composing Machine Learning applications

EasyModel provides features of database independent attribute. You can define the attribute like ActiveRecord that perform data conversion during assignment. データベースに関連付かない属性を定義する機能を提供します. 代入時に ActiveRecord と同様の型変換が行われる属性を定義することができます.

Provide ordering interface for clients with minimal configuration in Active Record models

A gem to manage postgres partitions only using the rails migration files to do it.

Adds simple distance scopes that utilize PostGIS indexes to your Rails models.

Integrate Rail's ActiveRecord gem and the money gem. Focus is on a simple code and API