A toolkit for building modeling frameworks like Active Record and Active Resource. Rich support for attributes, callbacks, validations, observers, serialization, internationalization, and testing.

Required Ruby Version

>= 1.8.7

Authors

David Heinemeier Hansson

Versions

  1. 8.1.4

    1. source

      1. 8.1.4 source September 24, 2026 (70 KB)
  2. 8.1.3.1

    1. source

      1. 8.1.3.1 source July 29, 2026 (69.5 KB)
  3. 8.1.3

    1. source

      1. 8.1.3 source March 24, 2026 (69.5 KB)
  4. 8.1.2.1

    1. source

      1. 8.1.2.1 source March 23, 2026 (69 KB)
  5. 8.1.2

    1. source

      1. 8.1.2 source January 08, 2026 (69 KB)
  6. 3.0.12

    1. source

      1. 3.0.12 source March 01, 2012 (38 KB)
Show all versions (463 total)

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