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86 lines
3.0 KiB
86 lines
3.0 KiB
#-- copyright
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# OpenProject is a project management system.
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# Copyright (C) 2012-2013 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 ProjectAssociation < ActiveRecord::Base
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unloadable
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self.table_name = 'project_associations'
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belongs_to :project_a, :class_name => "Project",
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:foreign_key => 'project_a_id'
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belongs_to :project_b, :class_name => "Project",
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:foreign_key => 'project_b_id'
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validates_presence_of :project_a, :project_b
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attr_accessible :description
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validate :validate,
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:validate_projects_not_identical
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scope :with_projects, lambda { |projects|
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projects = [projects] unless projects.is_a? Array
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project_ids = projects.first.respond_to?(:id) ? projects.map(&:id).join(",") : projects
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{ :conditions => ["#{self.table_name}.project_a_id in (?) or #{self.table_name}.project_b_id in (?)", project_ids, project_ids]}
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}
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def projects
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[project_a, project_b].compact.uniq.sort_by(&:id)
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end
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def project(this)
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projects.find { |that| that != this }
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end
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def validate
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condition = '(project_a_id = :first AND project_b_id = :second) OR' +
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'(project_b_id = :first AND project_a_id = :second)'
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condition = "(#{condition}) AND id != :id" unless new_record?
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c = self.class.count(:conditions => [condition, {:first => project_a, :second => project_b, :id => self.id}])
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errors.add(:base, :project_association_already_exists) if c != 0
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[:project_a, :project_b].each do |field|
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project = send(field)
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if project.present? # otherwise the presence_of validation will be triggered
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errors.add(field, :project_association_not_allowed) unless project.allows_association?
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end
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end
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end
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def validate_projects_not_identical
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errors.add(:base, :identical_projects) if project_a == project_b
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end
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def visible?(user = User.current)
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projects.all? { |p| p.visible?(user) }
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end
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end
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