socialforge/db/migrate/021_add_tracker_position.rb

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2013-08-01 10:33:49 +08:00
class AddTrackerPosition < ActiveRecord::Migration
def self.up
add_column :trackers, :position, :integer, :default => 1
Tracker.all.each_with_index {|tracker, i| tracker.update_attribute(:position, i+1)}
end
def self.down
remove_column :trackers, :position
end
end