RubyGems Navigation menu

activemodel 4.2.9

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

Gemfile:
=

install:
=

Versions:

  1. 8.1.3 March 24, 2026 (69.5 KB)
  2. 8.1.2.1 March 23, 2026 (69 KB)
  3. 8.1.2 January 08, 2026 (69 KB)
  4. 8.1.1 October 28, 2025 (69 KB)
  5. 8.1.0 October 22, 2025 (69 KB)
  6. 4.2.9 June 26, 2017 (44.5 KB)
Show all versions (458 total)

Runtime Dependencies (2):

activesupport = 4.2.9
builder ~> 3.1
Show all transitive dependencies

Managed By:

Rails

Outside Contributors

Authors:

  • David Heinemeier Hansson

SHA 256 checksum:

=
← Previous version Next version →

Total downloads 829,985,917

For this version 14,915,491

Version Released:

License:

MIT

Required Ruby Version: >= 1.9.3

New versions require MFA: true

Links:

Homepage Documentation Download Review changes Badge Subscribe RSS Analytics Report abuse Reverse dependencies