Chris@0: # redMine - project management software
Chris@0: # Copyright (C) 2006-2007  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 Board < ActiveRecord::Base
Chris@0:   belongs_to :project
Chris@0:   has_many :topics, :class_name => 'Message', :conditions => "#{Message.table_name}.parent_id IS NULL", :order => "#{Message.table_name}.created_on DESC"
Chris@0:   has_many :messages, :dependent => :delete_all, :order => "#{Message.table_name}.created_on DESC"
Chris@0:   belongs_to :last_message, :class_name => 'Message', :foreign_key => :last_message_id
Chris@0:   acts_as_list :scope => :project_id
Chris@0:   acts_as_watchable
Chris@0:   
Chris@0:   validates_presence_of :name, :description
Chris@0:   validates_length_of :name, :maximum => 30
Chris@0:   validates_length_of :description, :maximum => 255
Chris@0:   
Chris@0:   def visible?(user=User.current)
Chris@0:     !user.nil? && user.allowed_to?(:view_messages, project)
Chris@0:   end
Chris@0:   
Chris@0:   def to_s
Chris@0:     name
Chris@0:   end
Chris@0:   
Chris@0:   def reset_counters!
Chris@0:     self.class.reset_counters!(id)
Chris@0:   end
Chris@0:   
Chris@0:   # Updates topics_count, messages_count and last_message_id attributes for +board_id+
Chris@0:   def self.reset_counters!(board_id)
Chris@0:     board_id = board_id.to_i
Chris@0:     update_all("topics_count = (SELECT COUNT(*) FROM #{Message.table_name} WHERE board_id=#{board_id} AND parent_id IS NULL)," +
Chris@0:                " messages_count = (SELECT COUNT(*) FROM #{Message.table_name} WHERE board_id=#{board_id})," +
Chris@0:                " last_message_id = (SELECT MAX(id) FROM #{Message.table_name} WHERE board_id=#{board_id})",
Chris@0:                ["id = ?", board_id])
Chris@0:   end
Chris@0: end