Ability to edit a wiki page's parent on the edit page (#6449).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@8787 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/wiki/edit.html.erb

@@ -13,8 +13,13 @@
 <div class="box tabular">
 <%= text_area_tag 'content[text]', @text, :cols => 100, :rows => 25, :class => 'wiki-edit', :accesskey => accesskey(:edit) %>
 
-<% if @page.new_record? && @page.parent %>
-<p><label><%= check_box_tag 'page[parent_id]', @page.parent.id, true %> <%= l(:field_parent_title) %></label> <%=h @page.parent.pretty_title %></p>
+<% if @page.safe_attribute_names.include?('parent_id') && @wiki.pages.any? %>
+  <% fields_for @page do |fp| %>
+    <p>
+    	<label><%= l(:field_parent_title) %></label>
+		  <%= fp.select :parent_id, "<option value=''></option>" + wiki_page_options_for_select(@wiki.pages.all(:include => :parent) - @page.self_and_descendants, @page.parent) %>
+		</p>
+  <% end %>
 <% end %>
 
 <p><label><%= l(:field_comments) %></label><%= f.text_field :comments, :size => 120 %></p>