Plone: Setup dashboard on login

eventhandlers.py

from Products.Archetypes.interfaces.field import IImageField
from plone.app.blob.interfaces import IBlobImageField
from ftw.dashboard.portlets.postit.browser import postit
from ftw.dashboard.portlets.recentlymodified.browser import recentlymodified
from ftw.favorite.portlets import favorites
from plone.portlets.interfaces import IPortletManager
from zope.component import queryUtility
from zope.app.container.interfaces import INameChooser
from plone.portlets.constants import USER_CATEGORY
from plone.app.portlets.storage import UserPortletAssignmentMapping
from Products.Archetypes.interfaces import IObjectPostValidation
from zope.interface import implements
from zope.component import adapts
from Products.Archetypes.interfaces import IBaseObject


def user_create_dashboard(principal, event):
    """Checks if the dashboard is set up properly for the current user.
    If it is not (this happens as example with AD-users),
    setup the plone dashbboard
    """

    if ValidateDashboardSetup(principal, event)():
        defautl_portlets = {
            'plone.dashboard1': (postit.Assignment(), ),
            'plone.dashboard2': (favorites.Assignment(), ),
            'plone.dashboard3': [],
            'plone.dashboard4': [],
            }

        userid = principal.getId()
        list_dashboards = ('plone.dashboard1', 'plone.dashboard2',
                           'plone.dashboard3', 'plone.dashboard4')
        for name in list_dashboards:
            assignments = defautl_portlets[name]
            column = queryUtility(IPortletManager, name=name)
            if column is not None:
                category = column.get(USER_CATEGORY, None)
                if category is not None:
                    manager = category.get(userid, None)
                    if manager is None:
                        manager = UserPortletAssignmentMapping(
                            manager=name,
                            category=USER_CATEGORY,
                            name=userid)
                        category[userid] = manager

                    for portlet in manager.keys():
                        del manager[portlet]

                    chooser = INameChooser(manager)
                    for assignment in assignments:
                        manager[chooser.chooseName(None, assignment)] = \
                            assignment


class ValidateDashboardSetup(object):
    """ Dashboard Validator
    """

    def __init__(self, principal, event):
        self.principal = principal
        self.event = event

    def __call__(self, *args, **kwargs):
        setup_needed = False
        list_dashboards = ('plone.dashboard1', 'plone.dashboard2',
                           'plone.dashboard3', 'plone.dashboard4')

        for name in list_dashboards:
            column = queryUtility(IPortletManager, name=name)
            if column is not None:
                category = column.get(USER_CATEGORY, None)
                if category is not None:
                    manager = category.get(self.principal.getId(), None)
                    if manager is None:
                        setup_needed = True
                        break
        return setup_needed