openproject/lib/tasks/delete_documents.rake

#-- encoding: UTF-8
#-- copyright
# OpenProject is an open source project management software.
# Copyright (C) 2012-2020 the OpenProject GmbH
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2017 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
#
# This program 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 2
# of the License, or (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
# See docs/COPYRIGHT.rdoc for more details.
#++

require_relative 'shared/user_feedback'

namespace :migrations do
  namespace :documents do
    include Tasks::Shared::UserFeedback

    class Document < ActiveRecord::Base
      belongs_to :project
      belongs_to :category, class_name: 'DocumentCategory', foreign_key: 'category_id'
    end

    desc 'Removes all documents'
    task delete: :environment do |_task|
      try_delete_documents
    end

    def try_delete_documents
      if !$stdout.isatty || user_agrees_to_delete_all_documents
        puts 'Delete all attachments attached to projects or versions...'

        Document.destroy_all
        Attachment.where(container_type: ['Document']).destroy_all
      end
    rescue
      raise 'Cannot delete documents! There may be migrations missing...?'
    end

    def user_agrees_to_delete_all_documents
      questions = ['CAUTION: This rake task will delete ALL documents!',
                   "DISCLAIMER: This is the final warning: You're going to lose information!"]

      ask_for_confirmation(questions)
    end
  end
end