obsolete.ChilliProject/app/models/issue_relation.rb
Jean-Philippe Lang 92b02014d2 Issue relations first commit (not thoroughly tested). 4 kinds of relation are available:
* relates to: do nothing special. Just to know that the 2 issues are related...
* duplicates: will close the related issue with the same status when closing the issue (not implemented yet)
* blocks: will require to close the blocking issue before closing the blocked issue (not implemented yet)
* precedes (end to start relation): start date of the related issue depends on the due date of the preceding issue (implemented). A delay can be set so that the related issue can only start n days after the end of the preceding issue. When setting dates for an issue, dates of all downstream issues are set according to these relations.

To set a relation, the 2 issues have to belong to the same project (may change in the future). So if an issue is moved to another project, all its relations are removed.
Circular dependencies are checked when creating a relation.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@506 e93f8b46-1217-0410-a6f0-8f06a7374b81
2007-05-05 13:22:27 +00:00

80 lines
3.2 KiB
Ruby

# 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
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