This has been around in Rails since 2008 using ERB: http://mislav.uniqpath.com/rails/branching-the-database-along-with-your-code/ http://mislav.uniqpath.com/ra

This has been around in Rails since 2008 using ERB: http://mislav.uniqpath.com/rails/branching-the-database-along-with-your-code/ http://mislav.uniqpath.com/rails/branching-the-database-alon... This way you can enable a branch-specific database (if needed) and switch back and forth during the day if you need it. One could somehow easily adapt that for another development framework, though!