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Plone 3: How to really exclude from navigation

Plone has multiple ways of excluding a content object from the navigation:

  • In the edit tab of the object under settings check "Exclude from navigation"
  • Add the ID to idsNotToList in portal_properties/navtree_properties
  • Add the meta type to metaTypesNotToList in portal_properties/navtree_properties

This works fine but the item is still displayed in the navigation tree if it's the current item (the one you're currently viewing). This may have a reason (usability?) but it is not what I want in some cases. If you put a link to the terms and conditions in the footer, for example, you don't want this to show up in the navigation tree when you click on it.

To solve this you can override the template for the navigation portlet (it may also work for the portal tabs) and add the conditions for the exclusion there.

Overriding the navigation portlet template

Copy the files and to your package. Then create a file with the following content to create your own renderer based the original overriding the templates:

from import Renderer
from Products.Five.browser.pagetemplatefile import ViewPageTemplateFile

class MyRenderer(Renderer):
    _template = ViewPageTemplateFile('')
    recurse = ViewPageTemplateFile('')

Next, you have to register the class in the configure.zcml to override the original renderer.


    <include package="" />


(Note: If you want to do this for one theme only, put the code into your theme package and add layer="..browser.interfaces.IThemeSpecific" to the <plone:portletRenderer> element.)

If you restart Zope now, you are using your own class and templates but there's no difference, yet.

Adding conditions to really exclude from navigation

First we expose the idsNotToList and metaTypesNotToList properties to the templates by adding the following to

from plone.memoize.instance import memoize
from Products.CMFCore.utils import getToolByName

class MyRenderer(Renderer):
    def getMetaTypesNotToList(self):
        context = self.context
        portal_properties = getToolByName(context, 'portal_properties')
        navtree_properties = getattr(portal_properties, 'navtree_properties')
        return list(navtree_properties.metaTypesNotToList)

    def getIdsNotToList(self):
        context = self.context
        portal_properties = getToolByName(context, 'portal_properties')
        navtree_properties = getattr(portal_properties, 'navtree_properties')
        return list(navtree_properties.idsNotToList)

Now we can finally add the conditions to the template so the item is not displayed in the navigation portlet any more. In change

tal:condition="python:bottomLevel &lt;= 0 or level &lt;= bottomLevel"


tal:condition="python:(not node['item'].id in view.getIdsNotToList()) and (node['portal_type'] not in view.getMetaTypesNotToList()) and (not node['item'].exclude_from_nav) and (bottomLevel &lt;= 0 or level &lt;= bottomLevel)"

That's it!


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