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-rw-r--r--activerecord/lib/active_record/associations/has_many_through_association.rb10
1 files changed, 9 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations/has_many_through_association.rb b/activerecord/lib/active_record/associations/has_many_through_association.rb
index 8c91aeeed4..3a3966bb8a 100644
--- a/activerecord/lib/active_record/associations/has_many_through_association.rb
+++ b/activerecord/lib/active_record/associations/has_many_through_association.rb
@@ -39,7 +39,7 @@ module ActiveRecord
def find_target
@reflection.klass.find(:all,
- :select => "#{@reflection.table_name}.*",
+ :select => construct_select,
:conditions => construct_conditions,
:from => construct_from,
:order => @reflection.options[:order],
@@ -73,6 +73,14 @@ module ActiveRecord
"#{@reflection.table_name}, #{@owner.class.reflections[@reflection.options[:through]].table_name}"
end
+ def construct_select
+ selected = ["#{@reflection.table_name}.*"]
+ if @reflection.options[:piggyback]
+ selected += [@reflection.options[:piggyback]].flatten.collect { |field| "#{@owner.class.reflections[@reflection.options[:through]].table_name}.#{field}" }
+ end
+ selected.join(', ')
+ end
+
def construct_scope
{
:find => { :conditions => construct_conditions },