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Does github/basecamp use Rails ActiveRecord implementation (ORM)?

• Hi, I'm not sure but I heard that Github uses Rails for their main server side technology. And Basecamp completely based on Rails. I heard that "any Large scale app like Github and Basecamp don't use ORM". My question is does Github or Basecamp uses Rails ActiveRecord implementation (ORM) in their app? Thanks, Rashidul

• Answer:

  Whoever told you large web apps don't use ORMs is likely a lot less knowledgeable than they think they are. The majority of the large Rails apps use ActiveRecord, particularly because it makes it extremely easy to find a the areas of SQL where you aren't happy with the 2-3 queries the ORM generates, so you replace them with a single well-tuned custom query. Any 'good' ORM does the heavy lifting for you 90% of the time, and the remaining 10% just steps out of the way and lets you write what you want.