1 files changed, 34 insertions, 0 deletions

diff --git a/app/controllers/revisions_controller.rb b/app/controllers/revisions_controller.rb
new file mode 100644
index 0000000..565a25f
--- /dev/null
+++ b/app/controllers/revisions_controller.rb
@@ -0,0 +1,34 @@
+class RevisionsController < ApplicationController
+  
+  layout 'admin'
+  
+  def index
+  end
+
+  def diff
+    @node = Node.find(params[:id])
+    
+    if @node.pages.length > 1
+      params[:start]  ||= @node.pages.all[-1].revision
+      params[:end]    ||= @node.pages.all[-2].revision
+    else
+      params[:start], params[:end] = 1, 1
+    end
+    
+    @start = Page.find( :first, :conditions => {
+      :node_id => params[:id],
+      :revision => params[:start]
+    })
+    
+    @end = Page.find( :first, :conditions => {
+      :node_id => params[:id],
+      :revision => params[:end]
+    })
+    
+  end
+
+  def show
+    @node = Node.find(params[:id])
+  end
+
+end