A Rails model validation, my first gem, just a practice work

Extra validations for rails: date, domain, email, iban, phone, postal_code, commerce_number, vat_number

Improve your rails 3 application with some ActiveRecord validators.

Bidirectional mappings between models and external views for Rails.

Obligatory description when the summary suits.

Workflow specifically for ActiveModel objects.

A software model in Ruby for the greenhouse gas emissions of an rail_trip

ActiveRecord backend for DelayedJob

RakeAR is a Ruby Gem containing some common Rake tasks to help manage your ActiveRecord database independant of Rails.

Data migration tool using (ruby)Active Record.

Providing analytics as a DSL to an InfobrightCE database

RandomizedField is a simple ActiveRecord module that populates a field with a unique, randomly-generated string. This is useful for generating one-off tokens or creating a non-incrementing unique ID. See the project page for example uses.

Randomize the `id` attribute of ActiveRecord objects.

The easiest way to get random records from database with best performance that you ever seen.

Returns a random record for Ruby Models using ActiveRecord

use as active record relation method

Splits database ranges into lower and upper attributes in ActiveRecord

ActiveRecord extension for ranking/storing records

Variation of ranked-model using Pg HStore.

ranked-model-rails2 is a modern row sorting library built for Rails 2, backported from ranked-model. It uses fake_arel and is better optimized than most other libraries.