Implements Law of Demeter by mapping associated record attributes as own attributes (one-way read-only). Consequently, speeds up SQL queries by removing joins queries between intermediary models, at the cost of slower writes. This is an anti-normalization pattern in favour of actual data-redundan...

Shoulda Matchmakers generates regression specs for existing ActiveRecord models and ActionController controllers using Shoulda Matchers. It generates specs for model validations, associations, nested attributes, enum definitions, attribute serialization, database columns and database ...

This gem add deleted_at and last_view_at columns.

The attr_callback gem lets you create user-definable callback method attributes conveniently.

Fork of attachment_fu. It differs in following ways: 1. Can work with merb uploads 2. can create thumbnails on fly 3. goes with Mongrel handler, that autocreate thumbnails on demand 4. works only with file system (and does it better, than attachment_fu) 5. create only one row in table for ...

API for client lib to integrate with attache server

Ruby-version Athena UDF

bool_attr_accessor is a gem for creating boolean style attributes.

Declarative attributes mapping

A flowdown wrapper for attribute dependencies

Tools for aTech employees, if you aren't an aTech employee this gem will be mostly useless.

Tools for querying AWS Athena

Provides convenient functions for interacting with Atlassian Stash through the command line

Adds :destroy_if option to accepts_nested_attributes_for, which is basically a stronger version of :reject_if that destroys existing records, too.

AtomicArrays is a lightweight gem that aims to assist ActiveRecord with PostgreSQL array operations by offering a couple simple methods to update arrays in the database and the instance that it is called on. These metho...

Normatron is a Ruby On Rails plugin that perform attribute normalizations for ActiveRecord objects. With it you can normalize attributes to the desired format before saving them in the database. This gem inhibits the work of having to override attributes or create a specific method to...

A simple gem to duplicate a model instance, including its 'has_many' assocaitions. Added capability to add ignorable_attributes and ignorable_associations via ignore_attributes_while_duplicating and ignore_associations_while_duplicating methods (available at the class level)

ATProto is a gem for interacting with servers that implement the AT protocol, such as bsky.social

Atoma is a sister of the gem atogen and gem oglobin

attachment-fu for rails3. You know what it is.