return FactoryTypeInformation._getFactoryMethod(self, container)
 
         raise Unauthorized, ('Cannot create %s' % self.getId())        
-        
-            
-    security.declarePrivate('_finishConstruction')
-    def _finishConstruction(self, ob) :
-        """Finish the construction of a content block object."""
-        if hasattr(ob, '_setPortalTypeName'):
-            ob._setPortalTypeName(self.getId())
-
+    
+    
+    security.declarePrivate('_constructInstance')
+    def _constructInstance(self, container, id, *args, **kw):
+        ob = super(MosaicBlockInformation, self)._constructInstance(container, id, *args, **kw)
         typesTool = getToolByName(self, 'portal_types')
         
         # Add and init slots in block
                 kw[key] = value
 
             typesTool.constructContent(si.type, ob, si.id, **kw)
-
-        if self.notify_wf :
-            ob.notifyWorkflowCreated()
         return ob