I have a m which uses 2d index. When saving lat/lng, document is not created so I needed to convert it to float using to_f. For example

location = Array.new
if !params[:lat].blank?
  location << params[:lat].to_f
end
if !params[:lng].blank?
  location << params[:lng].to_f
end

item = Item.new({
  location: location
}).save

The model looks something like:

class Item
  include Mongoid::Document
  include Mongoid::Timestamps

  field :location,        :type => Array
  index({ location: "2d" })
end

Problem now is data stored is rounded instead of storing the actual value that I am passing since I am using float and It concerns me that some precision on lat/lng might be lost.

Is there a way to force Mongoid/Rails to use double type as mongodb supports double data type.

Thanks