discourse/db/migrate/20210913032326_add_for_topic_to_bookmarks.rb

# frozen_string_literal: true

class AddForTopicToBookmarks < ActiveRecord::Migration[6.1]
  def change
    add_column :bookmarks, :for_topic, :boolean, default: false, null: false
    add_index :bookmarks, %i[user_id post_id for_topic], unique: true
    remove_index :bookmarks, %i[user_id post_id] if index_exists?(:bookmarks, %i[user_id post_id])
  end
end