OpenProject is the leading open source project management software.
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openproject/app/models/issue_relation.rb

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# redMine - project management software
# Copyright (C) 2006-2007 Jean-Philippe Lang
#
# 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.
class IssueRelation < ActiveRecord::Base
belongs_to :issue_from, :class_name => 'Issue', :foreign_key => 'issue_from_id'
belongs_to :issue_to, :class_name => 'Issue', :foreign_key => 'issue_to_id'
TYPE_RELATES = "relates"
TYPE_DUPLICATES = "duplicates"
TYPE_BLOCKS = "blocks"
TYPE_PRECEDES = "precedes"
TYPES = { TYPE_RELATES => { :name => :label_relates_to, :sym_name => :label_relates_to, :order => 1 },
TYPE_DUPLICATES => { :name => :label_duplicates, :sym_name => :label_duplicates, :order => 2 },
TYPE_BLOCKS => { :name => :label_blocks, :sym_name => :label_blocked_by, :order => 3 },
TYPE_PRECEDES => { :name => :label_precedes, :sym_name => :label_follows, :order => 4 },
}.freeze
validates_presence_of :issue_from, :issue_to, :relation_type
validates_inclusion_of :relation_type, :in => TYPES.keys
validates_numericality_of :delay, :allow_nil => true
validates_uniqueness_of :issue_to_id, :scope => :issue_from_id
def validate
if issue_from && issue_to
errors.add :issue_to_id, :activerecord_error_invalid if issue_from_id == issue_to_id
errors.add :issue_to_id, :activerecord_error_not_same_project unless issue_from.project_id == issue_to.project_id || Setting.cross_project_issue_relations?
errors.add_to_base :activerecord_error_circular_dependency if issue_to.all_dependent_issues.include? issue_from
end
end
def other_issue(issue)
(self.issue_from_id == issue.id) ? issue_to : issue_from
end
def label_for(issue)
TYPES[relation_type] ? TYPES[relation_type][(self.issue_from_id == issue.id) ? :name : :sym_name] : :unknow
end
def before_save
if TYPE_PRECEDES == relation_type
self.delay ||= 0
else
self.delay = nil
end
set_issue_to_dates
end
def set_issue_to_dates
soonest_start = self.successor_soonest_start
if soonest_start && (!issue_to.start_date || issue_to.start_date < soonest_start)
issue_to.start_date, issue_to.due_date = successor_soonest_start, successor_soonest_start + issue_to.duration
issue_to.save
end
end
def successor_soonest_start
return nil unless (TYPE_PRECEDES == self.relation_type) && (issue_from.start_date || issue_from.due_date)
(issue_from.due_date || issue_from.start_date) + 1 + delay
end
def <=>(relation)
TYPES[self.relation_type][:order] <=> TYPES[relation.relation_type][:order]
end
end