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138 lines
5.0 KiB
138 lines
5.0 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) 2012-2015 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) 2006-2013 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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class Relation < ActiveRecord::Base
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belongs_to :from, class_name: 'WorkPackage', foreign_key: 'from_id'
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belongs_to :to, class_name: 'WorkPackage', foreign_key: 'to_id'
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scope :of_work_package, ->(work_package) { where('from_id = ? OR to_id = ?', work_package, work_package) }
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TYPE_RELATES = 'relates'
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TYPE_DUPLICATES = 'duplicates'
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TYPE_DUPLICATED = 'duplicated'
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TYPE_BLOCKS = 'blocks'
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TYPE_BLOCKED = 'blocked'
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TYPE_PRECEDES = 'precedes'
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TYPE_FOLLOWS = 'follows'
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TYPES = { TYPE_RELATES => { name: :label_relates_to, sym_name: :label_relates_to, order: 1, sym: TYPE_RELATES },
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TYPE_DUPLICATES => { name: :label_duplicates, sym_name: :label_duplicated_by, order: 2, sym: TYPE_DUPLICATED },
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TYPE_DUPLICATED => { name: :label_duplicated_by, sym_name: :label_duplicates, order: 3, sym: TYPE_DUPLICATES, reverse: TYPE_DUPLICATES },
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TYPE_BLOCKS => { name: :label_blocks, sym_name: :label_blocked_by, order: 4, sym: TYPE_BLOCKED },
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TYPE_BLOCKED => { name: :label_blocked_by, sym_name: :label_blocks, order: 5, sym: TYPE_BLOCKS, reverse: TYPE_BLOCKS },
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TYPE_PRECEDES => { name: :label_precedes, sym_name: :label_follows, order: 6, sym: TYPE_FOLLOWS },
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TYPE_FOLLOWS => { name: :label_follows, sym_name: :label_precedes, order: 7, sym: TYPE_PRECEDES, reverse: TYPE_PRECEDES }
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}.freeze
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validates_presence_of :from, :to, :relation_type
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validates_inclusion_of :relation_type, in: TYPES.keys
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validates_numericality_of :delay, allow_nil: true
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validates_uniqueness_of :to_id, scope: :from_id
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validate :validate_sanity_of_relation
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before_save :update_schedule
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attr_protected :from_id, :to_id
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def validate_sanity_of_relation
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if from && to
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errors.add :to_id, :invalid if from_id == to_id
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errors.add :to_id, :not_same_project unless from.project_id == to.project_id || Setting.cross_project_work_package_relations?
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errors.add :base, :circular_dependency if to.all_dependent_packages.include? from
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errors.add :base, :cant_link_a_work_package_with_a_descendant if from.is_descendant_of?(to) || from.is_ancestor_of?(to)
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end
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end
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def other_work_package(work_package)
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(from_id == work_package.id) ? to : from
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end
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# Returns the relation type for +work_package+
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def relation_type_for(work_package)
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if TYPES[relation_type]
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if from_id == work_package.id
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relation_type
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else
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TYPES[relation_type][:sym]
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end
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end
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end
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def label_for(work_package)
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TYPES[relation_type] ? TYPES[relation_type][(from_id == work_package.id) ? :name : :sym_name] : :unknow
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end
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def update_schedule
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reverse_if_needed
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if TYPE_PRECEDES == relation_type
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self.delay ||= 0
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else
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self.delay = nil
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end
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set_dates_of_target
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end
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def set_dates_of_target
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soonest_start = successor_soonest_start
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if soonest_start && to
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to.reschedule_after(soonest_start)
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end
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end
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def successor_soonest_start
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if (TYPE_PRECEDES == relation_type) && delay && from && (from.start_date || from.due_date)
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(from.due_date || from.start_date) + 1 + delay
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end
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end
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def <=>(relation)
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TYPES[relation_type][:order] <=> TYPES[relation.relation_type][:order]
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end
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# delay is an attribute of Relation but its getter is masked by delayed_job's #delay method
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# here we overwrite dj's delay method with the one reading the attribute
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# since we don't plan to use dj with Relation objects, this should be fine
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def delay
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self[:delay]
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end
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private
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# Reverses the relation if needed so that it gets stored in the proper way
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def reverse_if_needed
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if TYPES.has_key?(relation_type) && TYPES[relation_type][:reverse]
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work_package_tmp = to
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self.to = from
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self.from = work_package_tmp
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self.relation_type = TYPES[relation_type][:reverse]
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end
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end
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end
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