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lol_dba is a small package of rake tasks that scan your application models and displays a list of columns that probably should be indexed. Also, it can generate .sql migration scripts.

A versatile Ruby web spidering library that can spider a site, multiple domains, certain links or infinitely. Spidr is designed to be fast and easy to use.

A general classifier module to allow Bayesian and other types of classifications. A fork of cardmagic/classifier.

  • ruby
  • rubyml
  • bayesian-classifier

Generate mocks from ActiveRecord models for unit tests that run fast because they don’t need to load Rails or a database.

Download, unpack from a ZIP/TAR/GZ/BZ2 archive, parse, correct, convert units and import Google Spreadsheets, XLS, ODS, XML, CSV, HTML, etc. into your ActiveRecord models. Uses RemoteTable gem internally.