OpenProject is the leading open source project management software.
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openproject/db/migrate/20131202094511_delete_forme...

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#-- encoding: UTF-8
#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2015 the OpenProject Foundation (OPF)
#
# 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) 2006-2013 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 doc/COPYRIGHT.rdoc for more details.
#++
require_relative 'migration_utils/utils'
class DeleteFormerDeletedPlanningElements < ActiveRecord::Migration[4.2]
include Migration::Utils
def up
say_with_time_silently 'Remove deleted work packages and related journals' do
delete_work_packages_marked_as_deleted
end
remove_column :work_packages, :deleted_at
remove_column :work_package_journals, :deleted_at
end
def down
add_column :work_packages, :deleted_at, :datetime
add_column :work_package_journals, :deleted_at, :datetime
end
private
def delete_work_packages_marked_as_deleted
delete_ids_from_table('attachable_journals', 'journal_id', deleted_work_packages_journals_ids)
delete_ids_from_table('customizable_journals', 'journal_id', deleted_work_packages_journals_ids)
delete_ids_from_table('work_package_journals', 'journal_id', deleted_work_packages_journals_ids)
delete_ids_from_table('journals', 'id', deleted_work_packages_journals_ids)
delete_ids_from_table('work_packages', 'id', deleted_work_package_ids)
end
def delete_ids_from_table(table, id_column, ids)
unless ids.empty?
delete <<-SQL
DELETE FROM #{table}
WHERE #{id_column} IN (#{ids.join(', ')})
SQL
end
end
def deleted_work_package_ids
return @deleted_work_package_ids if @deleted_work_package_ids
result = select_all <<-SQL
SELECT id FROM work_packages WHERE deleted_at IS NOT NULL
SQL
@deleted_work_package_ids = result.map { |r| r['id'] }
end
def deleted_work_packages_journals_ids
return @deleted_work_packages_journals_ids if @deleted_work_packages_journals_ids
result = select_all <<-SQL
SELECT j.id
FROM journals AS j
JOIN work_packages AS w ON (j.journable_id = w.id AND j.journable_type = 'WorkPackage')
WHERE w.deleted_at IS NOT NULL;
SQL
@deleted_work_packages_journals_ids = result.map { |r| r['id'] }
end
end