How to hide navigation portlet after logout? - plone

Question

How to hide a navigation portlet after logging out? What I exactly want is, if a logged-in admin visits a site, the navigation portlet should appear and be visible to him until he logs out from the plone site. But if a normal user visits the plone site, the portlet should not appear.

Answer 1

A nice feature of Plone is the option to assign portlets not only to locations, but also to contenttypes and groups. To solve your request, simply assign the portlet to the group 'Administrators'.
To do that, go to your Plonesite's controlpanel, click 'Users and Groups', click on green tab 'Groups', click on 'Administrators', click on the tab 'Group portlets', add a portlet.
To reproduce this programtically, use Genericsetup (export portlets.xml of the site and include the relevant parts in your product).
For completeness: Similiar for assigning portlets to a contenttype, you go to the controlpanel, click 'Types', choose the wanted type (f.e. 'Event') of the dropdownlist and click on 'Manage portlets assigned to this content type', assign portlet. Progragramtically reproducable via exporting 'Types' and including it to your products.

Answer 2

Thank you all, for all the response towards my question. Unfortunately the solution you all provided doesn't work for me. So I myself Did like this to hide a navigation portlet when logged out.
Step 1: In overrides.zcml
<plone:portlet
name="navigation_bar"
interface="plone.app.portlets.portlets.navigation.INavigationPortlet"
assignment="plone.app.portlets.portlets.navigation.Assignment"
renderer=".browser.navi_portlet.navigation_portlet"
addview="plone.app.portlets.portlets.navigation.AddForm"
editview="plone.app.portlets.portlets.navigation.EditForm"
/>
<plone:portletRenderer
portlet="plone.app.portlets.portlets.navigation.INavigationPortlet"
class=".browser.navi_portlet.navigation_portlet"
layer=".interfaces.IThemeSpecific"
/>
renderer=".browser.navi_portlet.navigation_portlet" here browser is my folder which contains a file called navi_portlet with a method navigation_portlet.
step 2: navi_portlet.py:
from Products.Five.browser import BrowserView
from Products.Five.browser.pagetemplatefile import ViewPageTemplateFile
from Products.CMFPlone import PloneMessageFactory as _
from plone.app.portlets.portlets.navigation import Renderer
from plone.app.layout.viewlets.common import PersonalBarViewlet
from Products.Five.browser.pagetemplatefile import ViewPageTemplateFile
from plone.app.layout.globals.interfaces import IViewView
class navigation_portlet(Renderer,PersonalBarViewlet):
_template= ViewPageTemplateFile('templates/nav_portlet.pt')
def nav_up(self):
mytal = PersonalBarViewlet.update(self)
what i did in navi_portlet.py is i just inherited the PersonalBarViewlet from viewlets(eggs folder) and Renderer from portlets(eggs folder). To override the default behavior to hide it when logged out.
step 3: nav_portlet.pt
<dl class="actionMenu deactivated" id="portlet portletNavigationTree"
tal:define="user_actions python:view.nav_up();root view/navigation_root"
tal:condition="python:view.user_actions and not view.anonymous">
<tal:block condition="not: view/anonymous">
<dt class="portletHeader"
tal:attributes="class python:view.hasName() and 'portletHeader' or 'portletHeader hiddenStructure'">
<span class="portletTopLeft"></span>
<a href="#"
class="tile"
tal:attributes="href string:${view/heading_link_target}"
tal:content="view/title"
i18n:translate="">Navigation</a>
<span class="portletTopRight"></span>
</dt>
<dd class="portletItem lastItem">
<ul class="navTree navTreeLevel0">
<li tal:define="selectedClass view/root_item_class;
li_class python:selectedClass and ' navTreeCurrentNode' or '';
normalizeString nocall:context/plone_utils/normalizeString;
section_title root/Title;
section python:normalizeString(section_title);"
tal:condition="view/include_top"
tal:attributes="class string:navTreeItem navTreeTopNode${li_class} section-${section}">
<div tal:define="rootIsPortal view/root_is_portal;
root_icon view/root_icon;
root_type root/portal_type;
root_type_class python:'contenttype-' + normalizeString(root_type);
root_class python:rootIsPortal and 'contenttype-plone-site' or root_type_class;">
<a tal:attributes="href root/absolute_url;
title root/Description;
class python:' '.join([root_class, selectedClass]).strip();">
<img tal:replace="structure root_icon/html_tag" tal:condition="not:rootIsPortal" />
<span tal:omit-tag=""
tal:condition="rootIsPortal"
i18n:translate="tabs_home">Home</span>
<span tal:condition="not:rootIsPortal"
tal:replace="root/Title">Root item title</span>
</a>
</div>
</li>
<li tal:replace="structure view/createNavTree">
SUBTREE
</li>
</ul>
<span class="portletBottomLeft"></span>
<span class="portletBottomRight"></span>
</dd>
What i tried to do in nav_portlet.pt is to merge both portlets(Navigation Portlet using Render(class)) and viewlets(PersonalBarViewlet). so that i used the user_action method from the PersonalBarViewlet Class (i.etal:condition="python:view.user_actions and not view.anonymous">) to hide the Navigation Portlet when logged out.
Hope You all get my points and what i did.
Thanks