rails/journey — pull request #44 by schneems (2012-07-23 15:46:08+00:00)
Title: Add a Missing Keys Method to Formatter 

When a named route cannot be resolved due to a missing key, the router should be capable of identifying the required keys for the named route. This will be extremely useful in debugging routing errors by providing enough information to fix the problem in the message.

Once this information is available via Journey I plan to submit a PR to Rails to utilize the functionality and enhance the named route error message similar to this previous pull request: https://github.com/rails/rails/pull/6130

Functionality is tested, ATP. Let me know if you have any comments or questions.