openproject/db/migrate/20111014073606_aggregated_backlogs_migrations.rb

#-- copyright
# OpenProject Backlogs Plugin
#
# Copyright (C)2013-2014 the OpenProject Foundation (OPF)
# Copyright (C)2011 Stephan Eckardt, Tim Felgentreff, Marnen Laibow-Koser, Sandro Munda
# Copyright (C)2010-2011 friflaj
# Copyright (C)2010 Maxime Guilbot, Andrew Vit, Joakim Kolsjö, ibussieres, Daniel Passos, Jason Vasquez, jpic, Emiliano Heyns
# Copyright (C)2009-2010 Mark Maglana
# Copyright (C)2009 Joe Heck, Nate Lowrie
#
# 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 Backlogs is a derivative work based on ChiliProject Backlogs.
# The copyright follows:
# Copyright (C) 2010-2011 - Emiliano Heyns, Mark Maglana, friflaj
# Copyright (C) 2011 - Jens Ulferts, Gregor Schmidt - Finn GmbH - Berlin, Germany
#
# 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 Rails.root.join('db', 'migrate', 'migration_utils', 'migration_squasher').to_s
require Rails.root.join('db', 'migrate', 'migration_utils', 'setting_renamer').to_s
require 'open_project/plugins/migration_mapping'
# This migration aggregates the migrations detailed in MIGRATION_FILES
class AggregatedBacklogsMigrations < ActiveRecord::Migration
  def initialize(*)
    super
    @issues_table_exists = ActiveRecord::Base.connection.tables.include? 'issues'
  end

  REPLACED = {
    'story_trackers' => 'story_types',
    'task_tracker' => 'task_type'
  }

  MIGRATION_FILES = <<-MIGRATIONS
    011_create_stories_tasks_sprints_and_burndown.rb
    017_change_issue_position_column.rb
    20110321145023_create_version_setting.rb
    20110513130147_remove_sprint_start_date.rb
    20110610134000_add_projects_issue_statuses.rb
    20111014073605_drop_burndown_days.rb
  MIGRATIONS

  OLD_PLUGIN_NAME = 'chiliproject_backlogs'

  def up
    migration_names = OpenProject::Plugins::MigrationMapping.migration_files_to_migration_names(MIGRATION_FILES, OLD_PLUGIN_NAME)
    Migration::MigrationSquasher.squash(migration_names) do
      create_table 'version_settings' do |t|
        t.integer 'project_id'
        t.integer 'version_id'
        t.integer 'display'
        t.datetime 'created_at', null: false
        t.datetime 'updated_at', null: false
      end
      add_index 'version_settings', ['project_id', 'version_id'], name: 'index_version_settings_on_project_id_and_version_id'

      create_table 'issue_done_statuses_for_project', id: false do |t|
        t.integer 'project_id'
        t.integer 'issue_status_id'
      end

      if @issues_table_exists
        change_table 'issues' do |t|
          t.integer 'position'
          t.integer 'story_points'
          t.float 'remaining_hours'
        end
      end
    end
    Migration::SettingRenamer.rename('plugin_backlogs', 'plugin_openproject_backlogs')
    Migration::SettingRenamer.rename('plugin_redmine_backlogs', 'plugin_openproject_backlogs')
    # Rename Tracker to Type
    Setting['plugin_openproject_backlogs'] = replace(Setting['plugin_openproject_backlogs'], REPLACED)
  end

  def down
    drop_table 'version_settings'
    drop_table 'issue_done_statuses_for_project'
    if @issues_table_exists
      change_table 'issues' do |_t|
        remove_column 'position'
        remove_column 'story_points'
        remove_column 'remaining_hours'
      end
    end
    Setting['plugin_openproject_backlogs'] = replace(Setting['plugin_openproject_backlogs'], REPLACED.invert)
  end

  private

  def replace(hash, mapping)
    Hash[hash.map { |k, v| [mapping[k] || k, v] }]
  end

  def settings_table
    @settings_table ||= ActiveRecord::Base.connection.quote_table_name('settings')
  end

  def quote_value(s)
    ActiveRecord::Base.connection.quote(s)
  end
end