Fast, modern and concurrent bulk import for ruby on rails.

Robokassa is payment system, that provides a single simple interface for payment systems popular in Russia. If you have customers in Russia you can use the gem. The first thing about this gem, is that it was oribinally designed for spree commerce. So keep it in mind.

Yet another Ruby wrapper for Robokassa API aimed to make Robokassa integration even more easier

Rules engine that allows you to add customizable business rules to any ActiveRecord model.

SafeFinder lets you define model's null_object through simple DSL, and returns it when you can't find a result.

Event sourcing

sequel-annotate annotates Sequel models with schema information. By default, it includes information on columns, indexes, and foreign key constraints for the current table. On PostgreSQL, this includes more advanced information, including check constraints, triggers, comments, and foreign keys constraints for other tables that reference the current table.

A Sequel plugin that provides enum-like functionality to your models

A gem that provides Sequel::Models with polymorphic association capabilities

Plugin adds authentication methods to Sequel models using BCrypt library.

Small DSL to create ActiveRecord (>= 3.1) attribute predicates without writing SQL.

Allows multiple environments in database.yml, and dynamically switching them.

Provides Rest API access to your models and serves JST pages.

An implementation of role-based policies and operations to help controllers lose weight.

Simple, straightforward slugs for your ActiveRecord models.

Add social network capabilities to your projects.

Rails asset pipeline wrapper for socket.io

Adds marketplace functionality to Solidus stores.

GUI for sortable tree to manage data organized in tree with ancestry gem.

Spree Active Sale makes it easy to handle flash sale/ daily deals behavior with in a spree application. By this, you can have a variant, product, or group number of products in a taxon, attach that variant, product, or taxon to a sale event with a start and end date for scheduling. So that, your sale event will only be available between the dates given and when the sale is gone(i.e. not live), it will not be accessible at any point till you create a new one or re-schedule the same.