rails select and include

Question

Can anyone explain this?

Project.includes([:user, :company])

This executes 3 queries, one to fetch projects, one to fetch users for those proje

Answer 1

I had the same problem with select and includes. For eager loading of associated models I used native Rails scope 'preload' http://apidock.com/rails/ActiveRecord/QueryMethods/preload It provides eager load without skipping of 'select' at scopes chain.

I found it here https://github.com/rails/rails/pull/2303#issuecomment-3889821

Hope this tip will be helpful for someone as it was helpful for me.