Group and count in Rails

Posted by alamodey on Stack Overflow See other posts from Stack Overflow or by alamodey
Published on 2009-05-31T03:17:33Z Indexed on 2010/03/23 11:03 UTC
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I have this bit of code and I get an empty object.

@results = PollRoles.find(
    		:all, 
    	 	:select => 'option_id, count(*) count', 
    	 	:group => 'option_id', 
    	 	:conditions => ["poll_id = ?", @poll.id])

Is this the correct way of writing the query? I want a collection of records that have an option id and the number of times that option id is found in the PollRoles model.

EDIT: This is how I''m iterating through the results:

<% @results.each do |result| %>
    		<% @option = Option.find_by_id(result.option_id) %>
    		<%= @option.question %> <%= result.count %>
    	<% end %>

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