Directed Acyclic Graph Management Engine for ActiveRecord. Edges as source of truth, transitive closure maintained by PL/pgSQL triggers. Cycle rejection, ancestors/descendants, topological ordering. PostgreSQL 18+ only.

Directed acyclic graph support library for applications using ActiveRecord on top of PostgreSQL.

Dagraph is a gem which allows you to represent DAG hierarchy using your ActiveRecord models. With a directed acyclic graph, you can represent hierarchical data where children may have multiple parents.

This is Ruby App collects the information you need (currency, new torrents, etc) from various web sites. Main features: - local SQlite3 database to store history info - devices notification over PushBullet service - recent information visualization via html - flexible configura...

This is a crawler framework.

DM8 has no Ruby driver or ActiveRecord adapter. dm-rails keeps the stock mysql2 adapter and routes it through ShardingSphere-Proxy to DM8, patching ActiveRecord schema introspection (SHOW FULL FIELDS / information_schema) with a DM-side helper view. Battle-tested on a production Rails 7.1 system.

Extension to ActiveRecord for casting attributes as different types.

Multi-currency money library backed by BigDecimal

A simple framework for creating sites from 3rd party data and services

ActiveRecord gateway for dao-repository

Adds simple methods to support record archiving

Roles easy like sunday morning.

Daru (Data Analysis in RUby) is a library for analysis, manipulation and visualization of data. Daru works seamlessly accross interpreters and leverages interpreter-specific optimizations whenever they are available. It is the default data storage gem for all the statsample gems (glm, timeseries...

includes_count_of method on ActiveRecord::Relation to solve N+1 query problem when counting associated records

A gem for easy access to attributes stored in a serialized data hash

Provides simple methods on an ActiveRecord model using an ActiveRecord concern to invalidate/save single_column caches.

Provide a strategy for injecting database seeds between feature tests, using the DBMS directly.

database-cloner-rails provides two rake tasks for moving database records between Rails environments. `rake database:download` dumps all ActiveRecord model records to plain Ruby files (Model.create(...) statements). `rake database:upload` replays those files to restore records in the target datab...

A comprehensive Ruby library providing database abstraction and management features, making it easier to interact with various databases.

This gem will generate classes (by default ActiveRecord::Base descendants) from database introspection