Adding the destroy method to the sidebar as a link.

app/controllers/pages_controller.rb

@@ -122,7 +122,7 @@ def search
   # DELETE /pages/1
   # DELETE /pages/1.xml
   def destroy
-    @page = Page.find(params[:id]).destroy
+    @page = Page.find_by_permalink(params[:id]).destroy
     respond_to do |format|
       format.html { redirect_to(pages_url) }
       format.xml  { head :ok }

app/views/pages/show.html.erb

@@ -11,5 +11,6 @@
 	<li><%= link_to 'Edit this page', edit_page_path(@page) %></li>
 	<li><%= link_to('View previous revision', revision_page_url(:id => @page.permalink, :version => (@page.version - 1) )) if (@page.versions.size > 1 && @page.version > 1) %></li>
 	<li><%= link_to 'Return to home', pages_path unless @page.permalink == "home" %></li>
+	<li><%= link_to "Delete this page and all revisions", page_path(@page), :method => :delete %></li>
 </ul>
 <% end -%>

db/schema.rb

@@ -1,6 +1,13 @@
-# This file is autogenerated. Instead of editing this file, please use the
-# migrations feature of ActiveRecord to incrementally modify your database, and
+# This file is auto-generated from the current state of the database. Instead of editing this file, 
+# please use the migrations feature of ActiveRecord to incrementally modify your database, and
 # then regenerate this schema definition.
+#
+# Note that this schema.rb definition is the authoritative source for your database schema. If you need
+# to create the application database on another system, you should be using db:schema:load, not running
+# all the migrations from scratch. The latter is a flawed and unsustainable approach (the more migrations
+# you'll amass, the slower it'll run and the greater likelihood for issues).
+#
+# It's strongly recommended to check this file into your version control system.
 
 ActiveRecord::Schema.define(:version => 10) do