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: 20150710164522_add_maximum_score_and_number_of_decimal_places_to_school_calendar.rb
    path of file: ./repos/i-diario/db/migrate
    
    the code of the file until where you have to start completion: class AddMaximumScoreAndNumberOfDecimalPlacesToSchoolCalendar < ActiveRecord::Migration[4.2]
  def change
    add_column :school_calendars, :maximum_score, :integer, de
    
  def change
    add_column :school_calendars, :maximum_score, :integer, default: 10
    add_column :school_calendars, :number_of_decimal_places, :integer, default: 2

    execute <<-SQL
      UPDATE school_calendars SET maximum_score = 10 WHERE maximum_score IS NULL;
      UPDATE school_calendars SET number_of_decimal_places = 2 WHERE number_of_decimal_places IS NULL;
    SQL
  end