Plone: How to sort the navtree portlet using another list as base order?

I have a navtree on a plone site, already using this configuration:

navigation = mapping['navigation']
navigation.includeTop = True
navigation.currentFolderOnly = False
navigation.topLe开发者_如何学编程vel = 0
navigation.setProperty('metaTypesNotToList', ['ATBooleanCriterion', ...(another types go here) ..., MemberDataContainer'])
navigation.setProperty('idsNotToList',['Members', 'events'])

This results in a NavTree portlet that lists me this links: (the information into () are the ids of the elements, the ones we use when we don't want navtree to show then, putting then on the idsNotToList variable under navtree_properties)

• Home (I think this id is /root , but someone help me here telling me what is the exactly id resulted from the option: navigation.includeTop=True)
• Help (/help)
• Search on bibliography (/searchbibliography)
• Statistics (/statistics)

Now what I want is sort this navtree using this another list (from ids) as pattern:

['root', 'searchbibliography', 'help', 'statistics']

so that NavTree order is exactly displayed as this given list order, showing me links like this:

• Home
• Search on bibliography
• Help
• Statistics

We see that there's no alphabetycal order here. There's exactly a specific order.

So, how can I do this?

Solved: The ID of the root page is front-page
I could solve this by doing under the installation of the product:

def install(portal):
    portal = getToolByName(portal, 'portal_url')
    portal = portal.getPortalObject()

    portal.moveObjectsToTop(['front-page', 'searchbibliography', 'help', 'statistics'])
    portal.plone_utils.reindexOnReorder(portal)

Ordering the folder_contents of my portal automatically ordered the navigation portlet (that uses the same order of the portal folder (i.e., folder_contents)).