20120530005915_rename_klass_to_error_class.rb 416 Bytes
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class RenameKlassToErrorClass < Mongoid::Migration
  def self.up
    [Problem, Err, Notice].each do |model|
      model.collection.update({}, {'$rename' => {'klass' => 'error_class'}}, :multi => true, :safe => true)
    end
  end

  def self.down
    [Problem, Err, Notice].each do |model|
      model.collection.update({}, {'$rename' => {'error_class' => 'klass'}}, :multi => true, :safe => true)
    end
  end
end