# frozen_string_literal: true

# Redmine plugin for Document Management System "Features"
#
# Karel Pičman <karel.picman@kontron.com>
#
# This file is part of Redmine DMSF plugin.
#
# Redmine DMSF plugin is free software: you can redistribute it and/or modify it under the terms of the GNU General
# Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any
# later version.
#
# Redmine DMSF plugin is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
# the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with Redmine DMSF plugin. If not, see
# <https://www.gnu.org/licenses/>.

# Add column
class RemoveDuplicitiesFromRevision < ActiveRecord::Migration[7.0]
  def up
    remove_column :dmsf_file_revisions, :digest
    remove_column :dmsf_file_revisions, :mime_type
    # We need to keep the size despite the fact that it's duplicated in active_storage_blobs to speed up the main
    # document view
  end

  def down
    add_column :dmsf_file_revisions, :digest, :string, limit: 64, default: '', null: false
    add_column :dmsf_file_revisions, :mime_type, :string
    # Recalculation of these columns for all revisions is technically possible but costs are too high.
  end
end