acts_as_versioned
This library adds simple versioning to an ActiveRecord module. ActiveRecord is required.
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Install
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gem install acts_as_versioned
<3 GitHub
Gemcutter FTW
Add simple versioning to ActiveRecord models. This version supports rails ~>3.1.1. Also it have support for autosave. It introduces new method auto_save_version which keeps 1 autosave version for an object.