Chris@0: # redMine - project management software
Chris@0: # Copyright (C) 2006  Jean-Philippe Lang
Chris@0: #
Chris@0: # This program is free software; you can redistribute it and/or
Chris@0: # modify it under the terms of the GNU General Public License
Chris@0: # as published by the Free Software Foundation; either version 2
Chris@0: # of the License, or (at your option) any later version.
Chris@0: # 
Chris@0: # This program is distributed in the hope that it will be useful,
Chris@0: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@0: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@0: # GNU General Public License for more details.
Chris@0: # 
Chris@0: # You should have received a copy of the GNU General Public License
Chris@0: # along with this program; if not, write to the Free Software
Chris@0: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@0: 
Chris@0: class IssueStatus < ActiveRecord::Base
Chris@0:   before_destroy :check_integrity  
Chris@1:   has_many :workflows, :foreign_key => "old_status_id"
Chris@0:   acts_as_list
Chris@1:   
Chris@1:   before_destroy :delete_workflows
Chris@0: 
Chris@0:   validates_presence_of :name
Chris@0:   validates_uniqueness_of :name
Chris@0:   validates_length_of :name, :maximum => 30
Chris@0:   validates_format_of :name, :with => /^[\w\s\'\-]*$/i
Chris@0:   validates_inclusion_of :default_done_ratio, :in => 0..100, :allow_nil => true
Chris@0: 
Chris@0:   def after_save
Chris@0:     IssueStatus.update_all("is_default=#{connection.quoted_false}", ['id <> ?', id]) if self.is_default?
Chris@0:   end  
Chris@0:   
Chris@0:   # Returns the default status for new issues
Chris@0:   def self.default
Chris@0:     find(:first, :conditions =>["is_default=?", true])
Chris@0:   end
Chris@0:   
Chris@0:   # Update all the +Issues+ setting their done_ratio to the value of their +IssueStatus+
Chris@0:   def self.update_issue_done_ratios
Chris@0:     if Issue.use_status_for_done_ratio?
Chris@0:       IssueStatus.find(:all, :conditions => ["default_done_ratio >= 0"]).each do |status|
Chris@0:         Issue.update_all(["done_ratio = ?", status.default_done_ratio],
Chris@0:                          ["status_id = ?", status.id])
Chris@0:       end
Chris@0:     end
Chris@0: 
Chris@0:     return Issue.use_status_for_done_ratio?
Chris@0:   end
Chris@0: 
Chris@0:   # Returns an array of all statuses the given role can switch to
Chris@0:   # Uses association cache when called more than one time
Chris@0:   def new_statuses_allowed_to(roles, tracker)
Chris@0:     if roles && tracker
Chris@0:       role_ids = roles.collect(&:id)
Chris@0:       new_statuses = workflows.select {|w| role_ids.include?(w.role_id) && w.tracker_id == tracker.id}.collect{|w| w.new_status}.compact.sort
Chris@0:     else
Chris@0:       []
Chris@0:     end
Chris@0:   end
Chris@0:   
Chris@0:   # Same thing as above but uses a database query
Chris@0:   # More efficient than the previous method if called just once
Chris@0:   def find_new_statuses_allowed_to(roles, tracker)
Chris@0:     if roles && tracker
Chris@0:       workflows.find(:all,
Chris@0:                      :include => :new_status,
Chris@0:                      :conditions => { :role_id => roles.collect(&:id), 
Chris@0:                                       :tracker_id => tracker.id}).collect{ |w| w.new_status }.compact.sort
Chris@0:     else
Chris@0:       []
Chris@0:     end
Chris@0:   end
Chris@0:   
Chris@0:   def new_status_allowed_to?(status, roles, tracker)
Chris@0:     if status && roles && tracker
Chris@0:       !workflows.find(:first, :conditions => {:new_status_id => status.id, :role_id => roles.collect(&:id), :tracker_id => tracker.id}).nil?
Chris@0:     else
Chris@0:       false
Chris@0:     end
Chris@0:   end
Chris@0: 
Chris@0:   def <=>(status)
Chris@0:     position <=> status.position
Chris@0:   end
Chris@0:   
Chris@0:   def to_s; name end
Chris@0: 
Chris@0: private
Chris@0:   def check_integrity
Chris@0:     raise "Can't delete status" if Issue.find(:first, :conditions => ["status_id=?", self.id])
Chris@0:   end
Chris@1:   
Chris@1:   # Deletes associated workflows
Chris@1:   def delete_workflows
Chris@1:     Workflow.delete_all(["old_status_id = :id OR new_status_id = :id", {:id => id}])
Chris@1:   end
Chris@0: end