OpenProject is the leading open source project management software.
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openproject/db/migrate/20130620082322_create_work_...

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#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2013 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.
#++
class CreateWorkPackages < ActiveRecord::Migration
def up
create_table "work_packages" do |t|
# Issue
t.column :tracker_id, :integer, :default => 0, :null => false
t.column :project_id, :integer
t.column :subject, :string, :default => "", :null => false
t.column :description, :text
t.column :due_date, :date
t.column :category_id, :integer
t.column :status_id, :integer, :default => 0, :null => false
t.column :assigned_to_id, :integer
t.column :priority_id, :integer, :default => 0, :null => false
t.column :fixed_version_id, :integer
t.column :author_id, :integer, :default => 0, :null => false
t.column :lock_version, :integer, :default => 0, :null => false
t.column :done_ratio, :integer, :default => 0, :null => false
t.column :estimated_hours, :float
t.column :created_at, :timestamp
t.column :updated_at, :timestamp
# Planning Element
t.column :start_date, :date
t.column :end_date, :date
t.column :planning_element_status_comment, :text
t.column :deleted_at, :datetime
t.belongs_to :parent
t.belongs_to :project
t.belongs_to :responsible
t.belongs_to :planning_element_type
t.belongs_to :planning_element_status
# STI
t.column :type, :string
# Nested Set
t.column :parent_id, :integer, :default => nil
t.column :root_id, :integer, :default => nil
t.column :lft, :integer, :default => nil
t.column :rgt, :integer, :default => nil
end
# Issue compatibility
# Because of 't.belongs_to :project' (see above) column 'project_id'
# becomes nullable. That breaks compatibility with issue behavior.
change_table "work_packages" do |t|
t.change :project_id, :integer, :default => 0, :null => false
end
# Planning Elements
add_index :work_packages, :parent_id
add_index :work_packages, :project_id
add_index :work_packages, :responsible_id
add_index :work_packages, :planning_element_type_id
add_index :work_packages, :planning_element_status_id
# Nested Set
add_index :work_packages, [:root_id, :lft, :rgt]
change_table(:projects) do |t|
t.belongs_to :work_packages_responsible
t.index :work_packages_responsible_id
end
# Time Entry
rename_column :time_entries, :issue_id, :work_package_id
# Rename legacy tables 'issues' and 'planning_elements'
rename_table :issues, :legacy_issues
rename_table :planning_elements, :legacy_planning_elements
end
def down
# Nested Set
change_table(:projects) do |t|
t.remove_belongs_to :work_packages_responsible
end
# Time Entry
rename_column :time_entries, :work_package_id, :issue_id
drop_table(:work_packages)
# Revert renaming of legacy tables 'issues' and 'planning_elements'
rename_table :legacy_issues, :issues
rename_table :legacy_planning_elements, :planning_elements
end
end