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Editorial Team
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Asked: 2026-05-15T23:18:04+00:00

I have a fairly complex Rails app built on top of Twitter’s API, and

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I have a fairly complex Rails app built on top of Twitter’s API, and want to make the whole app case-insensitive.

Up until now, we’ve been converting all usernames and other strings to .downcase whenever possible and using the default case-sensitive searches, but that’s starting to cause problems, with ‘Username’ and ‘username’ being considered different users.

Do I need to set this validation:

validates_uniqueness_of :username, :case_sensitive => false

somewhere on every one of my models (there are a lot) and remove all instances of .downcase from the app (there are a TON)? Any other ideas?

Note: this app isn’t live yet, so I don’t mind wiping all the data it’s storing right now, if necessary.

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1 Answer

  1. Editorial Team

    I solved it using Rack Middleware, see this page: http://gehling.dk/2010/02/how-to-make-rails-routing-case-insensitive/

    UPDATE: This code has been updated to work with Rails 3 as well, so still a very good option.

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