You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: 025_create_review_of_review_scores.rb
    path of file: ./repos/expertiza/db/migrate_save
    
    the code of the file until where you have to start completion: class CreateReviewOfReviewScores < ActiveRecord::Migration[4.2]
  def self.up
    create_table :review_of_review_scores do |t|
      t.column :review_of_review_id, :integer
      t.column :question_id, :integer
      t.column :score, :integer
      t.column :comments, :text
    end
    execute "alter table review_of_review_score
    
  def self.up
    create_table :review_of_review_scores do |t|
      t.column :review_of_review_id, :integer
      t.column :question_id, :integer
      t.column :score, :integer
      t.column :comments, :text
    end
    execute "alter table review_of_review_scores
             add constraint fk_review_of_review_score_reviews
             foreign key (review_of_review_id) references review_of_reviews(id)"
    execute "alter table review_of_review_scores
             add constraint fk_review_of_review_score_questions
             foreign key (question_id) references questions(id)"
  end