post histories finished

app/controllers/post_histories_controller.rb

@@ -1,6 +1,6 @@
 class PostHistoriesController < ApplicationController
   def index
     @search = PostHistory.search(params[:search])
-    @histories = @search.paginate(:page => params[:page], :per_page => 20)
+    @histories = @search.paginate(:page => params[:page], :per_page => 20, :order => "updated_at DESC")
   end
 end

app/models/post_history.rb

@@ -51,9 +51,13 @@ class PostHistory < ActiveRecord::Base
       hash["updated_at"]
     end
     
-    def updater_id
+    def user_id
       hash["user_id"]
     end
+
+    def presenter
+      @presenter ||= PostHistoryRevisionPresenter.new(self)
+    end
   end
 
   before_validation :initialize_revisions, :on => :create

app/presenters/post_history_presenter.rb

@@ -1,19 +0,0 @@
-class PostHistoryPresenter < Presenter
-  attr_reader :revision
-  
-  def initialize(revision)
-    @revision = revision
-  end
-  
-  def changes
-    
-  end
-  
-  def updated_at
-    revision["updated_at"]
-  end
-  
-  def updater_name
-    User.id_to_name(revision["user_id"].to_i)
-  end
-end

app/presenters/post_history_revision_presenter.rb

@@ -0,0 +1,25 @@
+class PostHistoryRevisionPresenter < Presenter
+  attr_reader :revision
+  
+  def initialize(revision)
+    @revision = revision
+  end
+  
+  def changes
+    html =  []
+    html << revision.diff[:del].map {|x| "<del>#{h(x)}</del>"}
+    html << revision.diff[:add].map {|x| "<ins>#{h(x)}</ins>"}
+    html << "<ins>source:#{h(revision.diff[:source])}</ins>" if revision.diff[:source].present?
+    html << "<ins>rating:#{h(revision.diff[:rating])}</ins>" if revision.diff[:rating].present?
+    html << "<ins>parent:#{revision.diff[:parent_id]}</ins>" if revision.diff[:parent_id].present?
+    html.join(" ").html_safe
+  end
+  
+  def updated_at
+    Time.parse(revision.updated_at)
+  end
+  
+  def updater_name
+    User.id_to_name(revision.user_id)
+  end
+end

app/presenters/post_presenter.rb

@@ -10,6 +10,7 @@ class PostPresenter < Presenter
     html << %{<img src="#{post.preview_file_url}">}
     html << %{</a>}
     html << %{</article>}
+    html.html_safe
   end
   
   def initialize(post)

app/presenters/presenter.rb

@@ -1,4 +1,12 @@
 class Presenter
+  def self.h(s)
+    CGI.escapeHTML(s)
+  end
+  
+  def self.u(s)
+    URI.escape(s)
+  end
+  
   def h(s)
     CGI.escapeHTML(s)
   end

app/views/post_histories/index.html.erb

@@ -9,25 +9,27 @@
         </div>
       
         <div class="history">
-          <table>
+          <table class="striped">
             <thead>
               <tr>
-                <th>Changes</th>
                 <th>Date</th>
                 <th>Updater</th>
+                <th>Changes</th>
               </tr>
             </thead>
             <tbody>
               <% history.each_revision do |revision| %>
                 <tr>
-                  <td><%= revision.presenter.changes %></td>
                   <td><%= revision.presenter.updated_at %></td>
                   <td><%= revision.presenter.updater_name %></td>
+                  <td><%= revision.presenter.changes %></td>
                 </tr>
               <% end %>
             </tbody>
           </table>
         </div>
+
+        <div class="clearfix"></div>
       </div>
     <% end %>
   </div>

app/views/posts/partials/common/_secondary_links.html.erb

@@ -5,7 +5,7 @@
     <li>Popular</li>
     <li>Favorites</li>
     <li>Subscriptions</li>
-    <li>Changes</li>
+    <li><%= link_to "Changes", post_histories_path %></li>
     <li>Approvals</li>
     <li>Moderate</li>
     <li>Help</li>

app/views/posts/partials/show/_information.html.erb

@@ -10,6 +10,6 @@
       (<%= post.image_width %>x<%= post.image_height %>)
     <% end %>
   </li>
-  <li><%= link_to "Tag History", post_versions_path(:post_id => post) %></li>
-  <li><%= link_to "Note History", note_versions_path(:post_id => post) %></li>
+  <li><%= link_to "Tag History", post_histories_path(:search => {:post_id_eq => post.id}) %></li>
+  <li><%= link_to "Note History", note_versions_path(:search => {:post_id_eq => post.id}) %></li>
 </ul>