@object = Object.find(:first, :conditions => ['object.id = ?', params[:id]], :include => [:user, {:comments => [{:children => :user}, :user]}])
That :include statement is troublesome. I am trying to eager-load comments so that there will be 0 database queries during rendering. In my experience, queries during rendering slow things down quite a bit, especially when you're querying for a lot of little things, like comments or forum posts.
So far the above code was the only way I got one of my actions/views to work without queries during rendering. The problem is that it looks sloppy as hell, and I'm not sure if it's optimized.
I am trying to find an Object, then eager load the User that owns that Object; then eager load the Comments for that Object, then eager load the Users that own those Comments; and then eager load the children of those Comments, and then eager load the Users that own those child-Comments. (For some reason :include => :comments only loads parent comments when using acts_as_tree, so I have to get the children separately.)
This is what leads me to this extra-convoluted :include. Is there a better way to do this or is this about as good as it gets?
class User < ActiveRecord::Base has_many :objects has_many :comments end
class Object < ActiveRecord::Base belongs_to :user has_many :comments end
class Comment < ActiveRecord::Base acts_as_tree belongs_to :object belongs_to :user end
