* Refactored post history. Each post now has a single history record. This history record has multiple revisions, serialized as JSON in a text field.

app/presenters/post_history_presenter.rb

@@ -0,0 +1,19 @@
+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_presenter.rb

@@ -1,7 +1,24 @@
 class PostPresenter < Presenter
+  def self.preview(post)
+    flags = []
+    flags << "pending" if post.is_pending?
+    flags << "flagged" if post.is_flagged?
+    flags << "removed" if post.is_removed?
+    
+    html =  %{<article id="post_#{post.id}" data-id="#{post.id}" data-tags="#{h(post.tag_string)}" data-uploader="#{h(post.uploader_name)}" data-rating="#{post.rating}" data-width="#{post.image_width}" data-height="#{post.image_height}" data-flags="#{flags.join(' ')}">}
+    html << %{<a href="/posts/#{post.id}">}
+    html << %{<img src="#{post.preview_file_url}">}
+    html << %{</a>}
+    html << %{</article>}
+  end
+  
   def initialize(post)
     @post = post
   end
+  
+  def preview_html
+    PostPresenter.preview(@post)
+  end
 
   def image_html(template)
     return template.content_tag("p", "This image was deleted.") if @post.is_removed? && !CurrentUser.user.is_janitor?

app/presenters/post_set_presenter.rb

@@ -50,16 +50,7 @@ class PostSetPresenter < Presenter
     html = ""
     
     posts.each do |post|
-      flags = []
-      flags << "pending" if post.is_pending?
-      flags << "flagged" if post.is_flagged?
-      flags << "removed" if post.is_removed?
-      
-      html << %{<article id="post_#{post.id}" data-id="#{post.id}" data-tags="#{h(post.tag_string)}" data-uploader="#{h(post.uploader_name)}" data-rating="#{post.rating}" data-width="#{post.image_width}" data-height="#{post.image_height}" data-flags="#{flags.join(' ')}">}
-      html << %{<a href="/posts/#{post.id}">}
-      html << %{<img src="#{post.preview_file_url}">}
-      html << %{</a>}
-      html << %{</article>}
+      html << PostPresenter.preview(post)
     end
     
     html.html_safe