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# redMine - project management software
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# Copyright (C) 2006 Jean-Philippe Lang
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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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class Workflow < ActiveRecord::Base
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belongs_to :role
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belongs_to :old_status, :class_name => 'IssueStatus', :foreign_key => 'old_status_id'
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belongs_to :new_status, :class_name => 'IssueStatus', :foreign_key => 'new_status_id'
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validates_presence_of :role, :old_status, :new_status
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# Returns workflow transitions count by tracker and role
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def self.count_by_tracker_and_role
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counts = connection.select_all("SELECT role_id, tracker_id, count(id) AS c FROM #{Workflow.table_name} GROUP BY role_id, tracker_id")
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roles = Role.find(:all, :order => 'builtin, position')
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trackers = Tracker.find(:all, :order => 'position')
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result = []
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trackers.each do |tracker|
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t = []
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roles.each do |role|
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row = counts.detect {|c| c['role_id'].to_s == role.id.to_s && c['tracker_id'].to_s == tracker.id.to_s}
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t << [role, (row.nil? ? 0 : row['c'].to_i)]
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end
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result << [tracker, t]
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end
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result
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end
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# Find potential statuses the user could be allowed to switch issues to
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def self.available_statuses(project, user=User.current)
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Workflow.find(:all,
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:include => :new_status,
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:conditions => {:role_id => user.roles_for_project(project).collect(&:id)}).
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collect(&:new_status).
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compact.
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uniq.
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sort
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end
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# Copies workflows from source to targets
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def self.copy(source_tracker, source_role, target_trackers, target_roles)
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unless source_tracker.is_a?(Tracker) || source_role.is_a?(Role)
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raise ArgumentError.new("source_tracker or source_role must be specified")
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end
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target_trackers = [target_trackers].flatten.compact
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target_roles = [target_roles].flatten.compact
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target_trackers = Tracker.all if target_trackers.empty?
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target_roles = Role.all if target_roles.empty?
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target_trackers.each do |target_tracker|
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target_roles.each do |target_role|
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copy_one(source_tracker || target_tracker,
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source_role || target_role,
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target_tracker,
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target_role)
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end
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end
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end
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# Copies a single set of workflows from source to target
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def self.copy_one(source_tracker, source_role, target_tracker, target_role)
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unless source_tracker.is_a?(Tracker) && !source_tracker.new_record? &&
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source_role.is_a?(Role) && !source_role.new_record? &&
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target_tracker.is_a?(Tracker) && !target_tracker.new_record? &&
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target_role.is_a?(Role) && !target_role.new_record?
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raise ArgumentError.new("arguments can not be nil or unsaved objects")
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end
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if source_tracker == target_tracker && source_role == target_role
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false
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else
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transaction do
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delete_all :tracker_id => target_tracker.id, :role_id => target_role.id
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connection.insert "INSERT INTO #{Workflow.table_name} (tracker_id, role_id, old_status_id, new_status_id)" +
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" SELECT #{target_tracker.id}, #{target_role.id}, old_status_id, new_status_id" +
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" FROM #{Workflow.table_name}" +
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" WHERE tracker_id = #{source_tracker.id} AND role_id = #{source_role.id}"
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end
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true
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end
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end
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end
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