view app/models/message.rb @ 1082:997f6d7738f7 bug_531

In repo controller entry action, show the page for the file even if it's binary (so user still has access to history etc links). This makes it possible to use the entry action as the default when a file is clicked on

# Redmine - project management software
# Copyright (C) 2006-2011  Jean-Philippe Lang
#
# 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.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

class Message < ActiveRecord::Base
  include Redmine::SafeAttributes
  belongs_to :board
  belongs_to :author, :class_name => 'User', :foreign_key => 'author_id'
  acts_as_tree :counter_cache => :replies_count, :order => "#{Message.table_name}.created_on ASC"
  acts_as_attachable
  belongs_to :last_reply, :class_name => 'Message', :foreign_key => 'last_reply_id'

  acts_as_searchable :columns => ['subject', 'content'],
                     :include => {:board => :project},
                     :project_key => "#{Board.table_name}.project_id",
                     :date_column => "#{table_name}.created_on"
  acts_as_event :title => Proc.new {|o| "#{o.board.name}: #{o.subject}"},
                :description => :content,
                :type => Proc.new {|o| o.parent_id.nil? ? 'message' : 'reply'},
                :url => Proc.new {|o| {:controller => 'messages', :action => 'show', :board_id => o.board_id}.merge(o.parent_id.nil? ? {:id => o.id} :
                                                                                                                                       {:id => o.parent_id, :r => o.id, :anchor => "message-#{o.id}"})}

  acts_as_activity_provider :find_options => {:include => [{:board => :project}, :author]},
                            :author_key => :author_id
  acts_as_watchable

  validates_presence_of :board, :subject, :content
  validates_length_of :subject, :maximum => 255
  validate :cannot_reply_to_locked_topic, :on => :create

  after_create :add_author_as_watcher, :update_parent_last_reply
  after_update :update_messages_board
  after_destroy :reset_board_counters

  named_scope :visible, lambda {|*args| { :include => {:board => :project},
                                          :conditions => Project.allowed_to_condition(args.shift || User.current, :view_messages, *args) } }

  safe_attributes 'subject', 'content'
  safe_attributes 'locked', 'sticky', 'board_id',
    :if => lambda {|message, user|
      user.allowed_to?(:edit_messages, message.project)
    }

  def visible?(user=User.current)
    !user.nil? && user.allowed_to?(:view_messages, project)
  end

  def cannot_reply_to_locked_topic
    # Can not reply to a locked topic
    errors.add :base, 'Topic is locked' if root.locked? && self != root
  end

  def update_parent_last_reply
    if parent
      parent.reload.update_attribute(:last_reply_id, self.id)
    end
    board.reset_counters!
  end

  def update_messages_board
    if board_id_changed?
      Message.update_all("board_id = #{board_id}", ["id = ? OR parent_id = ?", root.id, root.id])
      Board.reset_counters!(board_id_was)
      Board.reset_counters!(board_id)
    end
  end

  def reset_board_counters
    board.reset_counters!
  end

  def sticky=(arg)
    write_attribute :sticky, (arg == true || arg.to_s == '1' ? 1 : 0)
  end

  def sticky?
    sticky == 1
  end

  def project
    board.project
  end

  def editable_by?(usr)
    usr && usr.logged? && (usr.allowed_to?(:edit_messages, project) || (self.author == usr && usr.allowed_to?(:edit_own_messages, project)))
  end

  def destroyable_by?(usr)
    usr && usr.logged? && (usr.allowed_to?(:delete_messages, project) || (self.author == usr && usr.allowed_to?(:delete_own_messages, project)))
  end

  private

  def add_author_as_watcher
    Watcher.create(:watchable => self.root, :user => author)
  end
end