'export geojson' textmate snippet, triggered by 'geojson[tab]'

a.rb

  def nonspatials
    cols = self.class.columns.select{|c| c.type != :spatial}.map(&:name).sort
    attributes.slice(*cols)
  end
  
  def self.export_geojson(fn, records, criteria_only=false)
    features = []
    f = RGeo::GeoJSON::EntityFactory.new
    ActiveRecord::Base.silence do
      records.each_with_index do |r, i|
        puts i
         cols = criteria_only ? r.criteria_cols_only : r.nonspatials
         features << f.feature($gnc.proj_to_geo(r.proj_shape_2264), r.id, cols)
      end
    end
    @coll = f.feature_collection(features)
    geojson = RGeo::GeoJSON.encode(@coll).to_json
    File.open("#{fn}.geojson", "w") {|f| f.write(geojson)}
  end