Sequel.migration do
  change do
    create_table(:sources) do
      foreign_key :entity_id, :entities, null: false
      foreign_key :source_id, :entities, null: false

      DateTime :created_at, null: false
      DateTime :modified_at, null: false

      unique %i[entity_id source_id]
    end

    create_table(:notes) do
      foreign_key :entity_id, :entities, null: false

      String :text, text: true

      DateTime :created_at, null: false
      DateTime :modified_at, null: false
    end
  end
end