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: 20230321194150_add_project_folder_to_projects_storages.rb
    path of file: ./repos/openproject/modules/storages/db/migrate
    
    the code of the file until where you have to start completion: #-- copyright
# OpenProject is an o
    
  def up
    execute <<-SQL.squish
      CREATE TYPE project_folder_modes AS ENUM ('inactive', 'manual');
    SQL

    change_table :projects_storages do |table|
      table.string :project_folder_id
      table.enum :project_folder_mode, enum_type: :project_folder_modes, default: :inactive, null: false
    end
  end