Echographia

making things better, making better things

Saturday, October 31, 2009

sometimes I’m not smart

You know those times when you’re looking all over the house for something and then somebody says, “Is that it in your other hand?”

Last night I spent at least an hour trying to figure out why I was getting a nil.rewrite error from Rails’s url_for method. I’ve seen hard-to-debug errors from there before, so I dug right down into it, but I couldn’t figure out why the @url variable was set in some cases and not in others… and then I determined that it actually was being set in all cases, but then it was mysteriously blank by the time url_for needed it….

And then I realized it was because I had a @url variable in my own controller action. And then I went to bed.

Most of the time I really love how dynamic and open Ruby is as a language, but sometimes private instance variables are just what you’d like to have had.

posted by erik at 11:39 am  

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