elasticsearch/elasticsearch-rails — pull request #212 by tpitale (2014-08-16 01:14:54+00:00)
Title: @ids is not an instance variable set anywhere

But, there is a method called `ids` which collections the ids from hits: https://github.com/elasticsearch/elasticsearch-rails/blob/104f91f24ba8d3dc7629b0eaf058329dc2cdc08c/elasticsearch-model/lib/elasticsearch/model/response/records.rb#L33