Of the handful of plug-ins I’ve written for Rails over the years, the one I install on new projects almost with thinking is sql_logging. I wrote that plug-in almost three years ago and it continues to work on Rails 2.3 apps today.
That isn’t true on Rails 3, though, so over the last few days I’ve taken the time to reevaluate the plug-in and figure out how to do the same work in Rails 3. The result is the new sql-logging gem. The source is hosted on GitHub and the gem itself is available, like any other, on rubygems.org.