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124 lines
3.4 KiB
124 lines
3.4 KiB
#-- encoding: UTF-8
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#-- copyright
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# OpenProject is a project management system.
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# Copyright (C) 2012-2017 the OpenProject Foundation (OPF)
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License version 3.
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#
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# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
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# Copyright (C) 2006-2017 Jean-Philippe Lang
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# Copyright (C) 2010-2013 the ChiliProject Team
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# See doc/COPYRIGHT.rdoc for more details.
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#++
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module WorkPackage::Ancestors
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extend ActiveSupport::Concern
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included do
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attr_accessor :work_package_ancestors
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##
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# Retrieve stored eager loaded ancestors
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# or use awesome_nested_set#ancestors reduced by visibility
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def visible_ancestors(user)
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if work_package_ancestors.nil?
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WorkPackage.visible(user).merge(ancestors)
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else
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work_package_ancestors
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end
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end
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end
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class_methods do
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def aggregate_ancestors(work_package_ids, user)
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::WorkPackage::Ancestors::Aggregator.new(work_package_ids, user).results
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end
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end
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##
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# Aggregate ancestor data for the given work package IDs.
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# Ancestors visible to the given user are returned, grouped by each input ID.
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class Aggregator
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attr_accessor :user, :ids
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def initialize(work_package_ids, user)
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@user = user
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@ids = work_package_ids
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end
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def results
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with_work_package_ancestors.group_by(&:leaf_id)
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end
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private
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def with_work_package_ancestors
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query = join_ancestors(wp_table)
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WorkPackage.joins(query.join_sources)
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.select("#{wp_table.name}.id AS leaf_id")
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.select('ancestors.*')
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.order('ancestors.lft ASC')
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end
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def join_ancestors(select)
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select
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.join(wp_ancestors)
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.on(ancestors_condition)
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end
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def ancestors_condition
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nested_set_root_condition
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.and(allowed_to_view_work_packages)
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.and(nested_set_lft_condition)
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.and(nested_set_rgt_condition)
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.and(in_given_work_packages)
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end
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def in_given_work_packages
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wp_table[:id].in(ids)
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end
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def allowed_to_view_work_packages
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wp_ancestors[:project_id].in(
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Project.allowed_to(user, :view_work_packages).select(:id).arel
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)
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end
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def nested_set_root_condition
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wp_ancestors[:root_id].eq(wp_table[:root_id])
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end
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def nested_set_lft_condition
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wp_ancestors[:lft].lt(wp_table[:lft])
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end
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def nested_set_rgt_condition
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wp_ancestors[:rgt].gt(wp_table[:rgt])
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end
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def wp_table
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@wp_table ||= WorkPackage.arel_table
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end
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def wp_ancestors
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@wp_ancestors ||= wp_table.alias('ancestors')
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end
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end
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end
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