activemodel 4.0.0.rc1

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

Gemfile:
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install:
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Versions:

8.1.2 January 08, 2026 (69 KB)
8.1.1 October 28, 2025 (69 KB)
8.1.0 October 22, 2025 (69 KB)
8.1.0.rc1 October 15, 2025 (69 KB)
8.1.0.beta1 September 04, 2025 (69 KB)
4.0.0.rc1 April 29, 2013 (44.5 KB)

Show all versions (453 total)

Runtime Dependencies (2):

activesupport = 4.0.0.rc1

builder ~> 3.1.0

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Owners:

Authors:

David Heinemeier Hansson

SHA 256 checksum:

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Total downloads 788,049,657

For this version 95,571

Version Released:
April 29, 2013 3:38pm

License:
MIT

Required Ruby Version: >= 1.9.3

New versions require MFA: true

Required Rubygems Version: > 1.3.1

Links:

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