Per project forums added.

Permissions for forums management can be set in "Admin -> Roles & Permissions".
Forums can be created on the project settings screen ("Forums" tab).
Once a project has a forum, a "Forums" link appears in the project menu.
For now, posting messages in forums requires to be logged in. Files can be attached to messages.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@529 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/messages_controller.rb

@@ -0,0 +1,66 @@
+# redMine - project management software
+# Copyright (C) 2006-2007  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 MessagesController < ApplicationController
+  layout 'base'
+  before_filter :find_project, :check_project_privacy
+  before_filter :require_login, :only => [:new, :reply]
+
+  verify :method => :post, :only => [ :reply, :destroy ], :redirect_to => { :action => :show }
+
+  def show
+    @reply = Message.new(:subject => "RE: #{@message.subject}")
+    render :action => "show", :layout => false if request.xhr?
+  end
+  
+  def new
+    @message = Message.new(params[:message])
+    @message.author = logged_in_user
+    @message.board = @board 
+    if request.post? && @message.save
+      params[:attachments].each { |file|
+        next unless file.size > 0
+        Attachment.create(:container => @message, :file => file, :author => logged_in_user)
+      } if params[:attachments] and params[:attachments].is_a? Array    
+      redirect_to :action => 'show', :id => @message
+    end
+  end
+
+  def reply
+    @reply = Message.new(params[:reply])
+    @reply.author = logged_in_user
+    @reply.board = @board
+    @message.children << @reply
+    redirect_to :action => 'show', :id => @message
+  end
+  
+  def download
+    @attachment = @message.attachments.find(params[:attachment_id])
+    send_file @attachment.diskfile, :filename => @attachment.filename
+  rescue
+    render_404
+  end
+  
+private
+  def find_project
+    @board = Board.find(params[:board_id], :include => :project)
+    @project = @board.project
+    @message = @board.topics.find(params[:id]) if params[:id]
+  rescue ActiveRecord::RecordNotFound
+    render_404
+  end
+end