gistfile1.txt

class RenameWeightedQualityScore < Mongoid::Migration
  def self.up
    members.find('_type' => 'Member').each do |member_hash|
      members.update({ '_id' => member_hash['_id'] }, 
                     { "$unset" => { "weighted_quality_score" => true },
                       "$set"   => { "decayed_quality_points_total" => member_hash['weighted_quality_score'] } })
    end

    crowd_members.each do |crowd_member_hash|
      crowd_members.update({ '_id' => crowd_member_hash['_id'] }, 
                           { "$unset" => { "weighted_quality_score" => true },
                             "$set"   => { "decayed_quality_points_total" => crowd_member_hash['weighted_quality_score'] } })
    end
  end

  def self.down
    members.find('_type' => 'Member').each do |member_hash|
      members.update({ '_id' => member_hash['_id'] }, 
                     { "$unset" => { "decayed_quality_points_total" => true },
                       "$set"   => { "weighted_quality_score" => member_hash['decayed_quality_points_total'] } })
    end

    crowd_members.each do |crowd_member_hash|
      crowd_members.update({ '_id' => crowd_member_hash['_id'] }, 
                           { "$unset" => { "decayed_quality_points_total" => true },
                             "$set"   => { "weighted_quality_score" => crowd_member_hash['decayed_quality_points_total'] } })
    end
  end

  def self.members
    connection.collection('users')
  end

  def self.crowd_members
    connection.collection('crowd_members')
  end
end