wrote rails engine for later, added ability to add comments and see ones already posted.

app/controllers/blog_posts_controller.rb

@@ -2,6 +2,7 @@ class BlogPostsController < ApplicationController
 
   before_filter :find_all_blog_posts, :find_all_blog_categories
   before_filter :find_page
+  before_filter :find_blog_post, :only => [:show, :comment]
 
   def index
     # you can use meta fields from your model instead (e.g. browser_title)
@@ -10,15 +11,33 @@ class BlogPostsController < ApplicationController
   end
 
   def show
-    @blog_post = BlogPost.live.find(params[:id])
+    @blog_comment = BlogComment.new
 
     # you can use meta fields from your model instead (e.g. browser_title)
     # by swapping @page for @blogs in the line below:
     present(@page)
   end
 
+  def comment
+    if (@blog_comment = BlogComment.create(params[:blog_comment])).valid?
+      if BlogComment::Moderation.enabled?
+        flash[:notice] = t('.thank_you_moderated')
+        redirect_back_or_default blog_post_url(params[:id])
+      else
+        redirect_to blog_post_url(params[:id], 
+                                  :anchor => "comment-#{@blog_comment.to_param}")
+      end
+    else
+      render :action => 'show'
+    end
+  end
+
 protected
 
+  def find_blog_post
+    @blog_post = BlogPost.live.find(params[:id])
+  end
+
   def find_all_blog_posts
     unless params[:category_id].present?
       @blog_posts = BlogPost.live

app/models/blog_comment.rb

@@ -1,8 +1,18 @@
 class BlogComment < ActiveRecord::Base
 
+  filters_spam :author_field => :name,
+               :email_field => :email,
+               :message_field => :message
+
   belongs_to :post, :class_name => 'BlogPost'
 
-  acts_as_indexed :fields => [:name, :email, :body]
+  acts_as_indexed :fields => [:name, :email, :message]
+
+  alias_attribute :message, :body
+
+  validates_presence_of :name, :message
+  validates_format_of :email,
+                      :with => /^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i
 
   named_scope :unmoderated, :conditions => {:state => nil}
   named_scope :approved, :conditions => {:state => 'approved'}

app/views/admin/blog/comments/index.html.erb

@@ -3,24 +3,28 @@
   <% if searching? %>
     <h2><%= t('shared.admin.search.results_for', :query => params[:search]) %></h2>
     <% if @blog_comments.any? %>
-      <%= will_paginate @blog_comments %>
+      <%=# will_paginate @blog_comments 
+      %>
 
       <ul>
         <%= render :partial => "blog_comments",
                    :collection => @blog_comments %>
       </ul>
 
-      <%= will_paginate @blog_comments %>
+      <%=# will_paginate @blog_comments 
+      %>
     <% else %>
       <p><%= t('admin.search_no_results') %></p>
     <% end %>
   <% else %>
     <% if @blog_comments.any? %>
-      <%= will_paginate @blog_comments %>
+      <%=# will_paginate @blog_comments 
+      %>
 
       <%= render :partial => "sortable_list" %>
 
-      <%= will_paginate @blog_comments %>
+      <%=# will_paginate @blog_comments 
+      %>
     <% else %>
       <h3>
         <%= t('.no_items_yet',

app/views/blog_posts/show.html.erb

@@ -3,6 +3,8 @@
 <% content_for :body_content_left do %>
   <%= @blog_post.body %>
 
+  <hr />
+
   <% if (categories = @blog_post.categories).any? %>
     <div class='post_categories'>
       <span class='filed_in'><%= t('.filed_in') %></span>
@@ -15,6 +17,41 @@
       </ul>
     </div>
   <% end %>
+
+  <hr />
+  <% if (comments = @blog_post.comments.approved).any? %>
+    <h2><%= t('.comments') %></h2>
+    <% comments.each do |comment| %>
+      <div class='blog_comment_message'>
+        <p>
+          <%= comment.message.to_s.gsub("\r\n\r\n", "</p><p>").gsub("\r\n", "<br/>") %>
+        </p>
+      </div>
+      <p class='blog_comment_author'>
+        <%= t('.comment_by', :who => comment.name) %>
+        <%= ", #{time_ago_in_words(comment.created_at)}".html_safe %>
+      </p>
+    <% end %>
+    <hr />
+  <% end %>
+
+  <% form_for [:blog_post, @blog_comment] do |f| %>
+    <div class='field'>
+      <%= f.label :name %>
+      <%= f.text_field :name %>
+    </div>
+    <div class='field'>
+      <%= f.label :email %>
+      <%= f.text_field :email %>
+    </div>
+    <div class='field message_field'>
+      <%= f.label :message %>
+      <%= f.text_area :message, :rows => 6 %>
+    </div>
+    <div class='field form-actions'>
+      <%= f.submit t('.submit') %>
+    </div>
+  <% end %>
 <% end %>
 
 <% content_for :body_content_right do %>

config/locales/en.yml

@@ -59,3 +59,4 @@ en:
       filed_in: Filed in
       created_at_title: Publishing Date
       created_at: Posted on {{when}}
+      submit: Send comment

config/routes.rb

@@ -1,20 +1,25 @@
-ActionController::Routing::Routes.draw do |map|
-  map.blog_post '/blog', :controller => :blog_posts, :action => :index
-  map.blog_post '/blog/:id', :controller => :blog_posts, :action => :show
-  map.blog_category '/blog/categories/:category_id', :controller => :blog_posts, :action => :index
+if Rails.version < '3.0.0'
+  ActionController::Routing::Routes.draw do |map|
+    map.blog_post '/blog', :controller => :blog_posts, :action => :index
+    map.blog_post '/blog/:id', :controller => :blog_posts, :action => :show
+    map.blog_category '/blog/categories/:category_id', :controller => :blog_posts, :action => :index
+    map.blog_post_blog_comments '/blog/:id/comments', :controller => :blog_posts, :action => :comment
 
-  map.namespace(:admin, :path_prefix => 'refinery') do |admin|
-    admin.namespace :blog do |blog|
-      blog.resources :posts
-      blog.resources :categories
-      blog.resources :comments, :collection => {
-        :approved => :get,
-        :rejected => :get
-      }
-      blog.resources :settings, :collection => {
-        :notification_recipients => [:get, :post],
-        :moderation => :get
-      }
+    map.namespace(:admin, :path_prefix => 'refinery') do |admin|
+      admin.namespace :blog do |blog|
+        blog.resources :posts
+        blog.resources :categories
+        blog.resources :comments, :collection => {
+          :approved => :get,
+          :rejected => :get
+        }
+        blog.resources :settings, :collection => {
+          :notification_recipients => [:get, :post],
+          :moderation => :get
+        }
+      end
     end
   end
-end
+else
+  # route for rails3 here.
+end

lib/refinerycms-blog.rb

@@ -2,6 +2,24 @@ require 'filters_spam' if defined?(Bundler)
 
 module Refinery
   module Blog
+
+    class Engine < Rails::Engine
+      initializer 'blog serves assets' do
+        app.middleware.insert_after ::ActionDispatch::Static, ::ActionDispatch::Static, "#{root}/public"
+      end
+
+      config.after_initialize do
+        Refinery::Plugin.register do |plugin|
+          plugin.name = "refinerycms_blog"
+          plugin.url = {:controller => '/admin/blog/posts', :action => 'index'}
+          plugin.menu_match = /^\/?(admin|refinery)\/blog\/?(posts|comments|categories)?/
+          plugin.activity = {
+            :class => BlogPost
+          }
+        end
+      end
+    end if defined?(Rails::Engine)
+
     class << self
       def version
         %q{0.9.8.0.rc1}

public/stylesheets/refinerycms-blog.css

@@ -10,4 +10,7 @@
   margin: 0px;
   padding: 0px;
   display: inline;
+}
+.field.message_field label {
+  vertical-align: top;
 }