Extract message system to plugin.

lib/foodsoft_messages/app/controllers/messages_controller.rb

@@ -0,0 +1,34 @@
+class MessagesController < ApplicationController
+
+  # Renders the "inbox" action.
+  def index
+    @messages = Message.public.page(params[:page]).per(@per_page).order('created_at DESC').includes(:sender)
+  end
+
+  # Creates a new message object.
+  def new
+    @message = Message.new(params[:message])
+    if @message.reply_to and not @message.reply_to.is_readable_for?(current_user)
+      redirect_to new_message_url, alert: 'Nachricht ist privat!'
+    end
+  end
+
+  # Creates a new message.
+  def create
+    @message = @current_user.send_messages.new(params[:message])
+    if @message.save
+      Resque.enqueue(MessageNotifier, FoodsoftConfig.scope, 'message_deliver', @message.id)
+      redirect_to messages_url, :notice => I18n.t('messages.create.notice')
+    else
+      render :action => 'new'
+    end
+  end
+
+  # Shows a single message.
+  def show
+    @message = Message.find(params[:id])
+    unless @message.is_readable_for?(current_user)
+      redirect_to messages_url, alert: 'Nachricht ist privat!'
+    end
+  end
+end