Index: test/unit/wiki_page_test.rb
===================================================================
--- test/unit/wiki_page_test.rb	(revisão 1930)
+++ test/unit/wiki_page_test.rb	(cópia de trabalho)
@@ -53,8 +53,16 @@
     assert_nil page.parent_title
     
     page = WikiPage.find_by_title('Page_with_an_inline_image')
-    assert_equal 'CookBook documentation', page.parent_title
+    assert_equal 'CookBook_documentation', page.parent_title
   end
+
+  def test_parent_pretty_title
+    page = WikiPage.find_by_title('Another_page')
+    assert_nil page.parent_title
+    
+    page = WikiPage.find_by_title('Page_with_an_inline_image')
+    assert_equal 'CookBook documentation', page.parent_pretty_title
+  end  
   
   def test_assign_parent
     page = WikiPage.find_by_title('Another_page')
Index: app/helpers/application_helper.rb
===================================================================
--- app/helpers/application_helper.rb	(revisão 1930)
+++ app/helpers/application_helper.rb	(cópia de trabalho)
@@ -197,7 +197,8 @@
   
   def breadcrumb(*args)
     elements = args.flatten
-    elements.any? ? content_tag('p', args.join(' » ') + ' » ', :class => 'breadcrumb') : nil
+    last_element = elements.pop
+    last_element.nil? ? nil : content_tag('p', elements.join(' » ') + ' » ' + last_element, :class => 'breadcrumb')
   end
   
   def html_title(*args)
@@ -260,7 +261,6 @@
     text = (Setting.text_formatting == 'textile') ?
       Redmine::WikiFormatting.to_html(text) { |macro, args| exec_macro(macro, obj, args) } :
       simple_format(auto_link(h(text)))
-
     # different methods for formatting wiki links
     case options[:wiki_links]
     when :local
@@ -270,7 +270,7 @@
       # used for single-file wiki export
       format_wiki_link = Proc.new {|project, title, anchor| "##{title}" }
     else
-      format_wiki_link = Proc.new {|project, title, anchor| url_for(:only_path => only_path, :controller => 'wiki', :action => 'index', :id => project, :page => title, :anchor => anchor) }
+      format_wiki_link = Proc.new {|project, title, anchor, parent| url_for(:only_path => only_path, :controller => 'wiki', :action => 'index', :id => project, :page => title, :anchor => anchor, :parent => parent && parent.title) }
     end
     
     project = options[:project] || @project || (obj && obj.respond_to?(:project) ? obj.project : nil)
@@ -303,7 +303,7 @@
           end
           # check if page exists
           wiki_page = link_project.wiki.find_page(page)
-          link_to((title || page), format_wiki_link.call(link_project, Wiki.titleize(page), anchor),
+          link_to((title || page), format_wiki_link.call(link_project, Wiki.titleize(page), anchor, obj && obj.page),
                                    :class => ('wiki-page' + (wiki_page ? '' : ' new')))
         else
           # project or wiki doesn't exist
Index: app/models/wiki_page.rb
===================================================================
--- app/models/wiki_page.rb	(revisão 1930)
+++ app/models/wiki_page.rb	(cópia de trabalho)
@@ -113,14 +113,19 @@
   end
   
   def parent_title
-    @parent_title || (self.parent && self.parent.pretty_title)
+    @parent_title || (self.parent && self.parent.title)
   end
   
   def parent_title=(t)
+    return self.parent if (self.parent && (self.parent.title == t))
     @parent_title = t
     parent_page = t.blank? ? nil : self.wiki.find_page(t)
     self.parent = parent_page
   end
+
+  def parent_pretty_title
+    @parent_pretty_title || (self.parent && self.parent.pretty_title)
+  end
   
   protected
   
Index: app/controllers/wiki_controller.rb
===================================================================
--- app/controllers/wiki_controller.rb	(revisão 1930)
+++ app/controllers/wiki_controller.rb	(cópia de trabalho)
@@ -52,14 +52,16 @@
       send_data(@content.text, :type => 'text/plain', :filename => "#{@page.title}.txt")
       return
     end
-	@editable = editable?
+    @editable = editable?
     render :action => 'show'
   end
   
   # edit an existing page or a new one
   def edit
-    @page = @wiki.find_or_new_page(params[:page])    
+    @page = @wiki.find_or_new_page(params[:page])
+    @page.parent_title = params[:parent] if params[:parent]
     return render_403 unless editable?
+
     @page.content = WikiContent.new(:page => @page) if @page.new_record?
     
     @content = @page.content_for_version(params[:version])
@@ -70,19 +72,11 @@
       # To prevent StaleObjectError exception when reverting to a previous version
       @content.version = @page.content.version
     else
-      if !@page.new_record? && @content.text == params[:content][:text]
-        # don't save if text wasn't changed
-        redirect_to :action => 'index', :id => @project, :page => @page.title
-        return
-      end
-      #@content.text = params[:content][:text]
-      #@content.comments = params[:content][:comments]
       @content.attributes = params[:content]
       @content.author = User.current
-      # if page is new @page.save will also save content, but not if page isn't a new record
-      if (@page.new_record? ? @page.save : @content.save)
-        redirect_to :action => 'index', :id => @project, :page => @page.title
-      end
+      @page.save if @page.changed?
+      @content.save if @content.changed?
+      redirect_to :action => 'index', :id => @project, :page => @page.title
     end
   rescue ActiveRecord::StaleObjectError
     # Optimistic locking exception
Index: app/views/wiki/show.rhtml
===================================================================
--- app/views/wiki/show.rhtml	(revisão 1930)
+++ app/views/wiki/show.rhtml	(cópia de trabalho)
@@ -10,7 +10,7 @@
 <%= link_to_if_authorized(l(:label_history), {:action => 'history', :page => @page.title}, :class => 'icon icon-history') %>
 </div>
 
-<%= breadcrumb(@page.ancestors.reverse.collect {|parent| link_to h(parent.pretty_title), {:page => parent.title}}) %>
+<%= breadcrumb(@page.ancestors.reverse.push(@page).collect {|parent| link_to h(parent.pretty_title), {:page => parent.title}}) %>
 
 <% if @content.version != @page.content.version %>
     <p>    
Index: app/views/wiki/edit.rhtml
===================================================================
--- app/views/wiki/edit.rhtml	(revisão 1930)
+++ app/views/wiki/edit.rhtml	(cópia de trabalho)
@@ -1,3 +1,5 @@
+<%= breadcrumb(@page.ancestors.reverse.push(@page).collect {|parent| link_to h(parent.pretty_title), {:page => parent.title}}) %>
+
 <h2><%= @page.pretty_title %></h2>
 
 <% form_for :content, @content, :url => {:action => 'edit', :page => @page.title}, :html => {:id => 'wiki_form'} do |f| %>
@@ -6,6 +8,7 @@
 
 <p><%= f.text_area :text, :cols => 100, :rows => 25, :class => 'wiki-edit', :accesskey => accesskey(:edit) %></p>
 <p><label><%= l(:field_comments) %></label><br /><%= f.text_field :comments, :size => 120 %></p>
+<p><label><%= l(:field_parent_title) %></label><br /><%= select_tag 'parent', options_for_select(@wiki.pages.collect{|page| [page.pretty_title,page.title]}, @page.parent_title) %></p>
 <p><%= submit_tag l(:button_save) %>
    <%= link_to_remote l(:label_preview), 
                        { :url => { :controller => 'wiki', :action => 'preview', :id => @project, :page => @page.title },
Index: app/views/wiki/rename.rhtml
===================================================================
--- app/views/wiki/rename.rhtml	(revisão 1930)
+++ app/views/wiki/rename.rhtml	(cópia de trabalho)
@@ -6,7 +6,7 @@
 <div class="box">
 <p><%= f.text_field :title, :required => true, :size => 100  %></p>
 <p><%= f.check_box :redirect_existing_links %></p>
-<p><%= f.text_field :parent_title, :size => 100  %></p>
+<p><%= f.select :parent_title, @wiki.pages.collect{|page| [page.pretty_title,page.title]} %></p>
 </div>
 <%= submit_tag l(:button_rename) %>
 <% end %>