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 might be totally missing something here but select and include are not a part of ActiveRecord. The usual way to do what you're trying to do is like this:

Project.find(:all, :select => "users.name", :include => [:user, :company], :joins => "LEFT JOIN users on projects.user_id = users.id")

Take a look at the api documentation for more examples. Occasionally I've had to go manual and use find_by_sql:

Project.find_by_sql("select users.name from projects left join users on projects.user_id = users.id")

Hopefully this will point you in the right direction.