backport some equivalence of Zope2.12 getSite to be able to retrieve

the site from anywhere.
Also setSite() in places where the published object is not in the site
or before an ERP5 site installation: this is required for portal types
as classes in 2.12 as PARENTS is not anymore there in the request.

If some traces appear in the logs for 2.12 instances, the proper fix
is to add a setSite() in the codepath leading to the point using getSite()


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@38613 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/ERP5Site.py

@@ -36,6 +36,7 @@ from Products.ERP5Type.Log import log as unrestrictedLog
 from Products.CMFActivity.Errors import ActivityPendingError
 import ERP5Defaults
 from Products.ERP5Type.TransactionalVariable import getTransactionalVariable
+from zope.site.hooks import setSite
 
 from zLOG import LOG, INFO
 from string import join
@@ -351,6 +352,14 @@ class ERP5Site(FolderMixIn, CMFSite):
   security.declareProtected(Permissions.AccessContentsInformation, 'getPath')
   getPath = getUrl
 
+  security.declareProtected(Permissions.AccessContentsInformation, 'objectValues')
+  def objectValues(self, *args, **kw):
+    # When stepping in an ERP5Site from outside,
+    # (e.g. left hand tree frame in {zope root}/manage )
+    # we need to set up the site to load portal types inside each site
+    setSite(self)
+    return super(FolderMixIn, self).objectValues(*args, **kw)
+
   security.declareProtected(Permissions.AccessContentsInformation, 'searchFolder')
   def searchFolder(self, **kw):
     """
@@ -359,6 +368,7 @@ class ERP5Site(FolderMixIn, CMFSite):
     """
     if not kw.has_key('parent_uid'):
       kw['parent_uid'] = self.uid
+    setSite(self)
     return self.portal_catalog.searchResults(**kw)
 
   security.declareProtected(Permissions.AccessContentsInformation, 'countFolder')
@@ -369,6 +379,7 @@ class ERP5Site(FolderMixIn, CMFSite):
     """
     if not kw.has_key('parent_uid'):
       kw['parent_uid'] = self.uid
+    setSite(self)
     return self.portal_catalog.countResults(**kw)
 
   # Proxy methods for security reasons
@@ -1466,6 +1477,23 @@ class ERP5Generator(PortalGenerator):
     # Return the fully wrapped object.
     p = parent.this()._getOb(id)
 
+    setSite(p)
+
+    try:
+      sm = p.getSiteManager()
+    except:
+      # Zope 2.8, ot site manager, no DefaultTraversable, dont care
+      pass
+    else:
+      import zope
+      # XXX hackish, required to setUpERP5Core while in tests,
+      # could probably be better
+      # (for some reason calling setSite here does not allow
+      # the newly created site to find the global DefaultTraversable
+      # object)
+      sm.registerAdapter(zope.traversing.adapters.DefaultTraversable,
+                         required=(zope.interface.Interface,))
+
     erp5_sql_deferred_connection_string = erp5_sql_connection_string
     p._setProperty('erp5_catalog_storage',
                    erp5_catalog_storage, 'string')

product/ERP5Type/patches/getSite.py

+from zLOG import LOG
+module_name = 'zope.site.hooks'
+native_setsite = False
+try:
+  hooks = __import__(module_name, {}, {}, module_name)
+  native = True
+except ImportError:
+  # backwards compatibility for Zope < 2.12
+  import imp, sys
+  sys.modules[module_name] = hooks = imp.new_module(module_name)
+  def setSite(foo=None):
+    pass
+  hooks.setSite = setSite
+  def getSite(foo=None):
+    return None
+  hooks.getSite = getSite
+
+# patch getSite so that it works everywhere
+from Products.ERP5Type.Globals import get_request
+
+oldgetsite = hooks.getSite
+def getSite():
+  try:
+    x = oldgetsite()
+    # this should be enough for Zope 2.12
+    if x is not None:
+      return x
+  except:
+    if native_setsite:
+      # this should not happen on 2.12, log it
+      import traceback; traceback.print_stack()
+      LOG('getSite() cant retrieve the site', 100,
+          'setSite() should have been called earlier on')
+    pass
+  # and Zope 2.8 needs to use the request
+  parents = get_request()['PARENTS']
+
+  portal = None
+  for item in parents:
+    if item.meta_type == 'ERP5 Site':
+      portal = item
+      break
+
+  if portal is None:
+    # not perfect?
+    try:
+      portal = parents[-1].getPortalObject()
+    except:
+      import traceback; traceback.print_stack()
+      raise AttributeError("getSite() cant retrieve the site.")
+
+  return portal
+hooks.getSite = getSite
+
+from Products.CMFActivity.ActivityTool import ActivityTool
+ActivityTool_process_timer = ActivityTool.process_timer
+def process_timer(self, *args, **kw):
+  portal = self.getPortalObject()
+  hooks.setSite(portal)
+  return ActivityTool_process_timer(self, *args, **kw)
+ActivityTool.process_timer = process_timer
+

product/ERP5Type/tests/ERP5TypeTestCase.py

@@ -46,13 +46,6 @@ def get_request():
 Products.ERP5Type.Utils.get_request = get_request
 Globals.get_request = get_request
 
-try:
-  from zope.site.hooks import setSite
-except ImportError:
-  # BACK: Zope 2.8. setSite is somewhere else, and we can't use it anyway
-  # since ERP5Site is not yet an ISite. Remove once we drop support for 2.8
-  def setSite(site=None):
-    pass
 
 try:
   import itools.zope
@@ -917,6 +910,8 @@ class ERP5TypeTestCase(ProcessingNodeTestCase, PortalTestCase):
               transaction.commit()
             self.portal = portal
 
+            setSite(portal)
+
             # Make sure skins are correctly set-up (it's not implicitly set up
             # by Acquisition on Zope 2.12 as it is on 2.8)
             portal.setupCurrentSkin(portal.REQUEST)