#29 — The migration seems to be resetting the portlets

I could reproduce the error.
It is actually not a bug/error but simply something we didn't take into consideration in the migration:
 1) we get information from the child site we want to migrate
 2) we create a folder with this information
 3) we transform the folder into a sub-site
 4) we erase the original child site
So here in step 1) we do not grab the portlet information, and in step 2) since we create a folder it will inherit its parent's portlets.

To solve it:
I need to figure out how to get/set an item's portlets in python and implement it in the migration code.

When using the changes of the attached diff, I have the following error. Note that is seems like the child site we want to get the portlet assignment from is the only one that will error out this way. I can access its parent for instance and I can access the newly created child folder.

2010-07-06 08:58:25 ERROR Zope.SiteErrorLog 1278421105.520.279883564034 http://localhost:51000/[…]/reinstallProducts
Traceback (innermost last):
  Module ZPublisher.Publish, line 119, in publish
  Module ZPublisher.mapply, line 88, in mapply
  Module Products.PDBDebugMode.runcall, line 70, in pdb_runcall
  Module ZPublisher.Publish, line 42, in call_object
  Module <string>, line 6, in _facade
  Module AccessControl.requestmethod, line 64, in _curried
  Module Products.CMFQuickInstallerTool.QuickInstallerTool, line 648, in reinstallProducts
  Module Products.CMFQuickInstallerTool.QuickInstallerTool, line 589, in installProducts
  Module Products.CMFQuickInstallerTool.QuickInstallerTool, line 514, in installProduct
   - __traceback_info__: ('collective.lineage',)
  Module Products.ExternalMethod.ExternalMethod, line 231, in __call__
   - __traceback_info__: ((<PloneSite at /Plone>,), {}, None)
  Module /home/thomas/.buildout/eggs/collective.lineage-0.6-py2.4.egg/collective/lineage/Extensions/Install.py, line 11, in install
  Module /home/thomas/.buildout/eggs/collective.lineage-0.6-py2.4.egg/collective/lineage/Extensions/Install.py, line 6, in runProfile
  Module Products.GenericSetup.tool, line 390, in runAllImportStepsFromProfile
   - __traceback_info__: profile-collective.lineage:default
  Module Products.GenericSetup.tool, line 1179, in _runImportStepsFromContext
  Module Products.GenericSetup.tool, line 1090, in _doRunImportStep
   - __traceback_info__: collective.lineage: default
  Module collective.lineage.setuphandlers, line 33, in importVarious
  Module Products.GenericSetup.upgrade, line 112, in doStep
  Module collective.lineage.upgrades, line 40, in migrateChildFolders
  Module zope.component._api, line 103, in getMultiAdapter
ComponentLookupError: ((<ChildFolder at /Plone/test>, <plone.portlets.manager.PortletManager object at 0xcfc072c>), <InterfaceClass plone.portlets.interfaces.IPortletAssignmentMapping>, u'')
> /home/thomas/.buildout/zope/Zope-2.10.11-final-py2.4/lib/python/zope/component/_api.py(103)getMultiAdapter()
-> raise ComponentLookupError(objects, interface, name)

Lucie: regarding the diff, I am only testing the migration of the left portlet here (olassignment stands for old-left-assignment)