added model Comment.

comments can now be added on news.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@81 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/news_controller.rb

@@ -27,7 +27,23 @@ class NewsController < ApplicationController
       flash[:notice] = l(:notice_successful_update)
       redirect_to :action => 'show', :id => @news
     end
+  end
+  
+  def add_comment
+    @comment = Comment.new(params[:comment])
+    @comment.author = logged_in_user
+    if @news.comments << @comment
+      flash[:notice] = l(:label_comment_added)
+      redirect_to :action => 'show', :id => @news
+    else
+      render :action => 'show'
+    end
   end
+
+  def destroy_comment
+    @news.comments.find(params[:comment_id]).destroy
+    redirect_to :action => 'show', :id => @news
+  end
 
 	def destroy
 		@news.destroy