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add note about habtm relations with scopes

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Rob Looby 2015-05-03 11:52:45 -05:00
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guides/source/upgrading_ruby_on_rails.md
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@ -895,6 +895,8 @@ CatalogProduct < ActiveRecord::Base
end
```
* Note that the the prefix takes scopes into account as well, so relations between `Catalog::Category` and `Catalog::Product` or `Catalog::Category` and `CatalogProduct` need to be updated similarly.
### Active Resource
Rails 4.0 extracted Active Resource to its own gem. If you still need the feature you can add the [Active Resource gem](https://github.com/rails/activeresource) in your Gemfile.