Hi, i'm trying to use the GeoKit plugin to calculate the distance between 2 points. So the idea is, i do a search for an article, and the results i want to order by distance. So i have a form where I enter the article (that im looking for) and my address. Then rails must find all articles that match with my query and order by address. So now, i have two models: Article and User. Articles belongs_to User and User has_many Articles. At the User model i have the info related with my latitude and longitude. So my Article object has three fields: id name user_id (FK to User model) And my user model has four fields id name lat (latitude) lng (longitude) OK, to have access to the user info thru articles i do the query: @articles = Article.find(:all,:conditions=>"vectors @@ to_tsquery ('büch')",:joins=>" INNER JOIN users ON users.id = articles.user_id",:include=>:user,:origin=>"Augustusplatz, 8,leipzig,germany") it works. But when i wanna add an :order=>'distance ASC' it fails because the order by query is using a Article.lat, and Article.lng fields to calculate the distance, but these fields lat and lng, are User object's members and not Article member. BTW if I get the query generated by rails and i change the order by clause where uses articles.lat/lng to users.lat/lng it works.
on 2008-11-27 17:43