Barry Allen

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Sometimes your application goes wrong. Fortunately there are a lot of tools that will help you debug it and get it back on the rails.

First area to check is the application log files. Have “tail -f” commands running on the server.log and development.log. Rails will automatically display debugging and runtime information to these files. Debugging info will also be shown in the browser on requests from 127.0.0.1.

You can also log your own messages directly into the log file from your code using the Ruby logger class from inside your controllers.
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