Unknow column distance

[rubian]

acts_as_mappable :default_units => :miles,
:default_formula => :sphere,
:distance_field_name => :distance,
:lat_column_name => :o_lat,
:lng_column_name => :o_lng

@journeys = Journey.find(:all, :origin=>[g.lat,g.lng]:conditions => [all_conditions, arguments],:order=>'distance')

I am getting unknown column distance

[jbucki]

I was also running into this problem on Rails 3.0.10. Here's what worked for me:

WeatherStation.find(:all, :origin => self.address) # old/broken
WeatherStation.geo_scope(:origin => self.address) # new/working