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: 20180824140358_fix_daily_note_students_indexes.rb
    path of file: ./repos/i-diario/db/migrate
    
    the code of the file until where you have to start completion: class FixDailyNoteStudentsIndexes < ActiveRecord::Migration[4.2]
  def change
    remove_index :daily_note_students, :
    
  def change
    remove_index :daily_note_students, :daily_note_id
    remove_index :daily_note_students, :student_id

    add_index :daily_note_students, :daily_note_id, where: "deleted_at IS NULL"
    add_index :daily_note_students, :student_id, where: "deleted_at IS NULL"
  end