How can I get SQL statement created by ActiveRecord#find without actually executing it?

Question

I am using will_paginate with some complicated queries and it is unable to correctly calculate number of total records (in order to display proper number of pag

Answer 1

It seems thatm in Rails 2.x, a private method called ActiveRecord::Base#construct_finder_sql could be used, I need to test it more and see whether it will work for me:

ActionType.find(:all, :select => 'hosted, top_action_type, count(*) as count', :group => 'hosted, top_action_type').count
#=> 6
sql = ActionType.send :construct_finder_sql, :select => 'hosted, top_action_type, count(*) as count', :group => 'hosted, top_action_type'
#=> "SELECT hosted, top_action_type, count(*) as count FROM "action_types"  GROUP BY hosted, top_action_type"
ActionType.count_by_sql "SELECT COUNT(*) FROM (#{sql}) a"
#=> 6