need possibility to wrap whole process inside transaction

[senid231]

also it will be nice to have ability to pass template_object as proc

[Fivell]

current solution

      active_admin_import options

      controller do
        around_action :wrap_in_transaction, only: [:do_import]

        def wrap_in_transaction
          ApplicationRecord.transaction do
            yield
            # When error appears during ActiveAdminImport process
            # it's being rescued inside gem and adds flash error.
            # In this case we must rollback a transaction.
            # see https://github.com/activeadmin-plugins/active_admin_import/issues/169
            raise ActiveRecord::Rollback if flash[:error].present?
          end
        end