Advanced search without database

Hello guys,
Im trying to make an advanced search form, actually i did like Ryan Bates teaches in this railscast : http://railscasts.com/episodes/111-advanced-search-form
But my problem is that i dont want to save the searches in my database and i dont know how to do this…
In the railscast, there was a comment like this:
*14.

  [Karl](http://www.vbsfinder.com/)

  May 26, 2008 at 23:01*

For those who may not know, if you don’t want to save your searches in the database, but would like all benefits of using an AR model (like validations), you can use virtual attributes:

*class Search < ActiveRecord::Base
attr_accessor :keywords, :category_id, : minimum_price, :maximum_price
validates_presence_of :keywords

blah…

end*

Everything works the same, just doesn’t save anything. And no need for a migration or ‘searches’ table in db.

But i tried it, and when i put the att_accessors in my model and try to make the search, the search returns me all the produtcs… it dont make the search…

Does anyone knows how to solve this problem?

Thanks

Anyone?