Fixed message for validation error on wiki_page.

--HG--
branch : 3.0-stable

app/controllers/wiki_controller.rb

@@ -129,7 +129,7 @@ class WikiController < ApplicationController
       if @page.save
         respond_to_success("Page reverted", :action => "show", :title => params[:title])
       else
-        respond_to_error("Error reverting page", { :action => 'show', :title => params[:title] })
+        respond_to_error((@page.errors.full_messages.first rescue "Error reverting page"), { :action => 'show', :title => params[:title] })
       end
     end
   end

app/models/wiki_page.rb

@@ -107,15 +107,8 @@ class WikiPage < ActiveRecord::Base
 
   protected
     def ensure_changed
-      changed = false
-      latest = self.versions.latest
-      if self.body != latest.body
-        changed = true
-      elsif self.title != latest.title
-        changed = true
-      elsif self.is_locked != latest.is_locked
-        changed = true
+      unless (changed & ['title', 'body']).any?
+        errors.add :base, :no_change
       end
-      return changed
     end
 end

config/locales/en.yml

@@ -106,7 +106,7 @@ en:
     moderate:
       uploaded_by_when_html: Uploaded by %{u} %{t_ago} (%{mod})
       mod: mod
-  #models
+  # ActiveRecord (models)
   activerecord:
     attributes:
       #user.attributes
@@ -114,6 +114,10 @@ en:
         password: Password
         current_password: Current password
         password_confirmation: Password confirmation
+    errors:
+      models:
+        wiki_page:
+          no_change: No change in page content/title
   #view/artist/create
   artist_create: "Separate multiple aliases and group members with commas."
   artist_name: "Name"