We had to move much of MySQL / Active Record objects to a huge MongoDB document. We'll show you the code that makes this happen and share a few of the lessons learned.

Ever wonder how to migrate from MySQL to MongoDB?

This is the detailed story of how the report generating code of venuedriver.com went from providing great business value to taking more than 5 minutes to just generate an error.

We had to generate reports that needed to join 8 tables. This approach was ok for the first 2 years of the app, but as we grew our report generating codebase became a joke.