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Message from discussion Help using near with maxDistance in a model. Mongo::OperationFailure: geo values have to be numbers:
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NickW  
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 More options Apr 5 2012, 11:05 am
From: NickW <nickw...@gmail.com>
Date: Thu, 5 Apr 2012 08:05:48 -0700 (PDT)
Local: Thurs, Apr 5 2012 11:05 am
Subject: Help using near with maxDistance in a model. Mongo::OperationFailure: geo values have to be numbers:
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I'm trying to add a model method to abstract radius searches within a
given distance and have them ordered by distance. I must be doing
something silly in my query syntax.

>> Site.nearest([-122.0,44.0],200)
>Mongo::OperationFailure: geo values have to be numbers: {$maxDistance: 200, $near: [ -122.0, 44.0 ] }

class Site
  include MongoMapper::Document

  key :id, Integer
  key :name, String
  key :location, Array
  ensure_index [[:location, '2d']]

  def self.nearest(center_point, range)
    where(:location => {'$near' => center_point, '$maxDistance' =>
range}).all
  end

end


 
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