N+1 is a common DB queries issue that slows down overall page load. This article demonstrates how to discover and fix it with more efficient DB query.

The world is becoming much more digital. As a result, a lot more of the things that we use and buy are digital items, ones that we download from websites after we pay for them.

In Ruby on Rails, a polymorphic association is an Active Record association that can connect a model to multiple other models.