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How does Stack Overflow keep track of its edit revisioning? Is there some kind of gem that helps out on this feature?

I know they are keeping the edit history in the database, but how does the application know what should be 'strike-through'ed, highlighted in green, etc.?

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migrated from stackoverflow.com Sep 8 '11 at 20:56

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SO is built on ASP.NET MVC, not Rails –  Jason Sep 8 '11 at 16:46
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1 Answer

up vote 2 down vote accepted

Stack Overflow doesn't use Ruby on Rails, but a Microsoft stack.

If you want something for Ruby on Rails, have a look at acts_as_versioned: acts_as_versioned: Getting started.

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Does this gem github.com/dkln/yesterday supposed to do the same as the act_as_versioned gem? –  Christian Fazzini Sep 16 '11 at 23:16
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