Binarylogic Searchlogic

Searchlogic is great and has really simplified some of my complex searches. One thing that bothered me though is that the main condition object infer necessary joins from conditions groups.

Given the following scenario (example from the documentation):

# Searchlogic::Version::STRING => "1.6.2"
#
# User => Orders => LineItems
# user.first_name like '%Ben%' AND (line_items.description LIKE '%cd%' OR line_items.description LIKE '%book%')

User.new_search do |s|
  s.conditions.first_name_like = "Ben"
  s.group do |group|
    group.orders.line_items.description_like = "cd" 
    group.orders.line_items.or_description_like = "book" 
  end
end

The above code fails because no joins are made with orders and then line_items.

It would work if I had just put the relationship condition directly on the search object, but then I would not get the parenthesis I want.

My temporary solution is just to declare the joins manually ("s.joins = { :orders => :line_items }"), but an automatic would be more elegant.