obsolete.ChilliProject/app/models/workflow.rb

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#-- encoding: UTF-8
#-- copyright
# ChiliProject is a project management system.
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#
# Copyright (C) 2010-2012 the ChiliProject Team
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#
# 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.
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#
# See doc/COPYRIGHT.rdoc for more details.
#++
class Workflow < ActiveRecord::Base
belongs_to :role
belongs_to :old_status, :class_name => 'IssueStatus', :foreign_key => 'old_status_id'
belongs_to :new_status, :class_name => 'IssueStatus', :foreign_key => 'new_status_id'
validates_presence_of :role, :old_status, :new_status
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# Returns workflow transitions count by tracker and role
def self.count_by_tracker_and_role
counts = connection.select_all("SELECT role_id, tracker_id, count(id) AS c FROM #{Workflow.table_name} GROUP BY role_id, tracker_id")
roles = Role.find(:all, :order => 'builtin, position')
trackers = Tracker.find(:all, :order => 'position')
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result = []
trackers.each do |tracker|
t = []
roles.each do |role|
row = counts.detect {|c| c['role_id'].to_s == role.id.to_s && c['tracker_id'].to_s == tracker.id.to_s}
t << [role, (row.nil? ? 0 : row['c'].to_i)]
end
result << [tracker, t]
end
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result
end
# Find potential statuses the user could be allowed to switch issues to
def self.available_statuses(project, user=User.current)
Workflow.find(:all,
:include => :new_status,
:conditions => {:role_id => user.roles_for_project(project).collect(&:id)}).
collect(&:new_status).
compact.
uniq.
sort
end
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# Copies workflows from source to targets
def self.copy(source_tracker, source_role, target_trackers, target_roles)
unless source_tracker.is_a?(Tracker) || source_role.is_a?(Role)
raise ArgumentError.new("source_tracker or source_role must be specified")
end
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target_trackers = [target_trackers].flatten.compact
target_roles = [target_roles].flatten.compact
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target_trackers = Tracker.all if target_trackers.empty?
target_roles = Role.all if target_roles.empty?
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target_trackers.each do |target_tracker|
target_roles.each do |target_role|
copy_one(source_tracker || target_tracker,
source_role || target_role,
target_tracker,
target_role)
end
end
end
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# Copies a single set of workflows from source to target
def self.copy_one(source_tracker, source_role, target_tracker, target_role)
unless source_tracker.is_a?(Tracker) && !source_tracker.new_record? &&
source_role.is_a?(Role) && !source_role.new_record? &&
target_tracker.is_a?(Tracker) && !target_tracker.new_record? &&
target_role.is_a?(Role) && !target_role.new_record?
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raise ArgumentError.new("arguments can not be nil or unsaved objects")
end
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if source_tracker == target_tracker && source_role == target_role
false
else
transaction do
delete_all :tracker_id => target_tracker.id, :role_id => target_role.id
connection.insert "INSERT INTO #{Workflow.table_name} (tracker_id, role_id, old_status_id, new_status_id)" +
" SELECT #{target_tracker.id}, #{target_role.id}, old_status_id, new_status_id" +
" FROM #{Workflow.table_name}" +
" WHERE tracker_id = #{source_tracker.id} AND role_id = #{source_role.id}"
end
true
end
end
end