25 lines
904 B
Ruby
25 lines
904 B
Ruby
class TileTracepoints < ActiveRecord::Migration
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def self.up
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add_column "gps_points", "tile", :integer, :null => false, :unsigned => true
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add_index "gps_points", ["tile"], :name => "points_tile_idx"
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remove_index "gps_points", :name => "points_idx"
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begin
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Tracepoint.update_all("latitude = latitude * 10, longitude = longitude * 10, tile = tile_for_point(latitude * 10, longitude * 10)")
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rescue ActiveRecord::StatementInvalid => ex
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Tracepoint.find(:all).each do |tp|
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tp.latitude = tp.latitude * 10
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tp.longitude = tp.longitude * 10
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tp.save!
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end
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end
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end
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def self.down
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Tracepoint.update_all("latitude = latitude / 10, longitude = longitude / 10")
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add_index "gps_points", ["latitude", "longitude"], :name => "points_idx"
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remove_index "gps_points", :name => "points_tile_idx"
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remove_column "gps_points", "tile"
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end
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end
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