to_param doesn't like you very much

If you override to_param in your model, make sure it doesn't return any Reserved Characters or your nice resource path methods (e.g. artist_path) will throw weird 'failed to generate from' errors.

It would be really helpful if Rails threw an exception that was useful, like 'bad to_param string'; it would have saved an hour of my time at least ;).

12:00 AM on Sunday, 31/01/2010

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