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 Message < ActiveRecord::Base
Chris@1517:   include Redmine::SafeAttributes
Chris@1517:   belongs_to :board
Chris@1517:   belongs_to :author, :class_name => 'User', :foreign_key => 'author_id'
Chris@1517:   acts_as_tree :counter_cache => :replies_count, :order => "#{Message.table_name}.created_on ASC"
Chris@1517:   acts_as_attachable
Chris@1517:   belongs_to :last_reply, :class_name => 'Message', :foreign_key => 'last_reply_id'
Chris@1517: 
Chris@1517:   acts_as_searchable :columns => ['subject', 'content'],
Chris@1517:                      :include => {:board => :project},
Chris@1517:                      :project_key => "#{Board.table_name}.project_id",
Chris@1517:                      :date_column => "#{table_name}.created_on"
Chris@1517:   acts_as_event :title => Proc.new {|o| "#{o.board.name}: #{o.subject}"},
Chris@1517:                 :description => :content,
Chris@1517:                 :group => :parent,
Chris@1517:                 :type => Proc.new {|o| o.parent_id.nil? ? 'message' : 'reply'},
Chris@1517:                 :url => Proc.new {|o| {:controller => 'messages', :action => 'show', :board_id => o.board_id}.merge(o.parent_id.nil? ? {:id => o.id} :
Chris@1517:                                                                                                                                        {:id => o.parent_id, :r => o.id, :anchor => "message-#{o.id}"})}
Chris@1517: 
Chris@1517:   acts_as_activity_provider :find_options => {:include => [{:board => :project}, :author]},
Chris@1517:                             :author_key => :author_id
Chris@1517:   acts_as_watchable
Chris@1517: 
Chris@1517:   validates_presence_of :board, :subject, :content
Chris@1517:   validates_length_of :subject, :maximum => 255
Chris@1517:   validate :cannot_reply_to_locked_topic, :on => :create
Chris@1517: 
Chris@1517:   after_create :add_author_as_watcher, :reset_counters!
Chris@1517:   after_update :update_messages_board
Chris@1517:   after_destroy :reset_counters!
Chris@1517:   after_create :send_notification
Chris@1517: 
Chris@1517:   scope :visible, lambda {|*args|
Chris@1517:     includes(:board => :project).where(Project.allowed_to_condition(args.shift || User.current, :view_messages, *args))
Chris@1517:   }
Chris@1517: 
Chris@1517:   safe_attributes 'subject', 'content'
Chris@1517:   safe_attributes 'locked', 'sticky', 'board_id',
Chris@1517:     :if => lambda {|message, user|
Chris@1517:       user.allowed_to?(:edit_messages, message.project)
Chris@1517:     }
Chris@1517: 
Chris@1517:   def visible?(user=User.current)
Chris@1517:     !user.nil? && user.allowed_to?(:view_messages, project)
Chris@1517:   end
Chris@1517: 
Chris@1517:   def cannot_reply_to_locked_topic
Chris@1517:     # Can not reply to a locked topic
Chris@1517:     errors.add :base, 'Topic is locked' if root.locked? && self != root
Chris@1517:   end
Chris@1517: 
Chris@1517:   def update_messages_board
Chris@1517:     if board_id_changed?
Chris@1517:       Message.where(["id = ? OR parent_id = ?", root.id, root.id]).update_all({:board_id => board_id})
Chris@1517:       Board.reset_counters!(board_id_was)
Chris@1517:       Board.reset_counters!(board_id)
Chris@1517:     end
Chris@1517:   end
Chris@1517: 
Chris@1517:   def reset_counters!
Chris@1517:     if parent && parent.id
Chris@1517:       Message.where({:id => parent.id}).update_all({:last_reply_id => parent.children.maximum(:id)})
Chris@1517:     end
Chris@1517:     board.reset_counters!
Chris@1517:   end
Chris@1517: 
Chris@1517:   def sticky=(arg)
Chris@1517:     write_attribute :sticky, (arg == true || arg.to_s == '1' ? 1 : 0)
Chris@1517:   end
Chris@1517: 
Chris@1517:   def sticky?
Chris@1517:     sticky == 1
Chris@1517:   end
Chris@1517: 
Chris@1517:   def project
Chris@1517:     board.project
Chris@1517:   end
Chris@1517: 
Chris@1517:   def editable_by?(usr)
Chris@1517:     usr && usr.logged? && (usr.allowed_to?(:edit_messages, project) || (self.author == usr && usr.allowed_to?(:edit_own_messages, project)))
Chris@1517:   end
Chris@1517: 
Chris@1517:   def destroyable_by?(usr)
Chris@1517:     usr && usr.logged? && (usr.allowed_to?(:delete_messages, project) || (self.author == usr && usr.allowed_to?(:delete_own_messages, project)))
Chris@1517:   end
Chris@1517: 
Chris@1517:   private
Chris@1517: 
Chris@1517:   def add_author_as_watcher
Chris@1517:     Watcher.create(:watchable => self.root, :user => author)
Chris@1517:   end
Chris@1517: 
Chris@1517:   def send_notification
Chris@1517:     if Setting.notified_events.include?('message_posted')
Chris@1517:       Mailer.message_posted(self).deliver
Chris@1517:     end
Chris@1517:   end
Chris@1517: end