Chris@1517: # Redmine - project management software
Chris@1517: # Copyright (C) 2006-2014  Jean-Philippe Lang
Chris@1517: #
Chris@1517: # This program is free software; you can redistribute it and/or
Chris@1517: # modify it under the terms of the GNU General Public License
Chris@1517: # as published by the Free Software Foundation; either version 2
Chris@1517: # of the License, or (at your option) any later version.
Chris@1517: #
Chris@1517: # This program is distributed in the hope that it will be useful,
Chris@1517: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@1517: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@1517: # GNU General Public License for more details.
Chris@1517: #
Chris@1517: # You should have received a copy of the GNU General Public License
Chris@1517: # along with this program; if not, write to the Free Software
Chris@1517: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@1517: 
Chris@1517: class IssueStatus < ActiveRecord::Base
Chris@1517:   before_destroy :check_integrity
Chris@1517:   has_many :workflows, :class_name => 'WorkflowTransition', :foreign_key => "old_status_id"
Chris@1517:   acts_as_list
Chris@1517: 
Chris@1517:   before_destroy :delete_workflow_rules
Chris@1517:   after_save     :update_default
Chris@1517: 
Chris@1517:   validates_presence_of :name
Chris@1517:   validates_uniqueness_of :name
Chris@1517:   validates_length_of :name, :maximum => 30
Chris@1517:   validates_inclusion_of :default_done_ratio, :in => 0..100, :allow_nil => true
Chris@1517: 
Chris@1517:   scope :sorted, lambda { order("#{table_name}.position ASC") }
Chris@1517:   scope :named, lambda {|arg| where("LOWER(#{table_name}.name) = LOWER(?)", arg.to_s.strip)}
Chris@1517: 
Chris@1517:   def update_default
Chris@1517:     IssueStatus.where(['id <> ?', id]).update_all({:is_default => false}) if self.is_default?
Chris@1517:   end
Chris@1517: 
Chris@1517:   # Returns the default status for new issues
Chris@1517:   def self.default
Chris@1517:     where(:is_default => true).first
Chris@1517:   end
Chris@1517: 
Chris@1517:   # Update all the +Issues+ setting their done_ratio to the value of their +IssueStatus+
Chris@1517:   def self.update_issue_done_ratios
Chris@1517:     if Issue.use_status_for_done_ratio?
Chris@1517:       IssueStatus.where("default_done_ratio >= 0").each do |status|
Chris@1517:         Issue.where({:status_id => status.id}).update_all({:done_ratio => status.default_done_ratio})
Chris@1517:       end
Chris@1517:     end
Chris@1517: 
Chris@1517:     return Issue.use_status_for_done_ratio?
Chris@1517:   end
Chris@1517: 
Chris@1517:   # Returns an array of all statuses the given role can switch to
Chris@1517:   # Uses association cache when called more than one time
Chris@1517:   def new_statuses_allowed_to(roles, tracker, author=false, assignee=false)
Chris@1517:     if roles && tracker
Chris@1517:       role_ids = roles.collect(&:id)
Chris@1517:       transitions = workflows.select do |w|
Chris@1517:         role_ids.include?(w.role_id) &&
Chris@1517:         w.tracker_id == tracker.id &&
Chris@1517:         ((!w.author && !w.assignee) || (author && w.author) || (assignee && w.assignee))
Chris@1517:       end
Chris@1517:       transitions.map(&:new_status).compact.sort
Chris@1517:     else
Chris@1517:       []
Chris@1517:     end
Chris@1517:   end
Chris@1517: 
Chris@1517:   # Same thing as above but uses a database query
Chris@1517:   # More efficient than the previous method if called just once
Chris@1517:   def find_new_statuses_allowed_to(roles, tracker, author=false, assignee=false)
Chris@1517:     if roles.present? && tracker
Chris@1517:       conditions = "(author = :false AND assignee = :false)"
Chris@1517:       conditions << " OR author = :true" if author
Chris@1517:       conditions << " OR assignee = :true" if assignee
Chris@1517: 
Chris@1517:       workflows.
Chris@1517:         includes(:new_status).
Chris@1517:         where(["role_id IN (:role_ids) AND tracker_id = :tracker_id AND (#{conditions})",
Chris@1517:           {:role_ids => roles.collect(&:id), :tracker_id => tracker.id, :true => true, :false => false}
Chris@1517:           ]).all.
Chris@1517:         map(&:new_status).compact.sort
Chris@1517:     else
Chris@1517:       []
Chris@1517:     end
Chris@1517:   end
Chris@1517: 
Chris@1517:   def <=>(status)
Chris@1517:     position <=> status.position
Chris@1517:   end
Chris@1517: 
Chris@1517:   def to_s; name end
Chris@1517: 
Chris@1517:   private
Chris@1517: 
Chris@1517:   def check_integrity
Chris@1517:     raise "Can't delete status" if Issue.where(:status_id => id).any?
Chris@1517:   end
Chris@1517: 
Chris@1517:   # Deletes associated workflows
Chris@1517:   def delete_workflow_rules
Chris@1517:     WorkflowRule.delete_all(["old_status_id = :id OR new_status_id = :id", {:id => id}])
Chris@1517:   end
Chris@1517: end