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Differences between Zope2 and Grok
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:Author: Vincent Fretin
:Version: unkown

Get the user id
---------------

Zope 2::

  self.request.AUTHENTICATED_USER.getId()

Dolmen::

  self.request.principal.id


Check if user is anonymous
--------------------------

Zope 2::

  portal_membership.isAnonymousUser()

What this code do is actually::

  u = getSecurityManager().getUser()
  return u is None or u.getUserName() == 'Anonymous User'

Dolmen::

  from zope.authentication.interfaces import IUnauthenticatedPrincipal
  IUnauthenticatedPrincipal.providedBy(self.request.principal)


Example how to retrieve the email from the authenticated user
-------------------------------------------------------------

Zope 2 / Plone::

  self.request.AUTHENTICATED_USER.getProperty('email')

Dolmen::

  from menhir.contenttype.user.user import IUser
  email = IUser(self.request.principal).email

Get the absolute ur of an object
--------------------------------

Zope 2::

  self.context.absolute_url()

Grok::

  from zope.traversing.browser.absoluteurl import absoluteURL
  absoluteURL(self.context, self.request)

or simply in a grok.View::

  self.url(self.context)