docs: def projects_database_update_success(self, aliases_after_update,
                                           projects_db):
          """
          Display the results of the projects/aliases database update. We need
          the projects db to extract the name of the projects / activities.
          """
          def show_aliases(aliases):
              """
              Display the given list of aliases in the following form:
  
              my_alias
                  project name / activity name
  
              The aliases parameter is just a list of aliases, the mapping is
              extracted from the aliases_after_update parameter, and the
              project/activity names are looked up in the projects db.
              """
              for alias in aliases:
                  mapping = aliases_after_update[alias]
                  (project, activity) = projects_db.mapping_to_project(mapping)
  
                  self.msg("%s\n\t%s / %s" % (
                      alias, project.name if project else "?",
                      activity.name if activity else "?"
                  ))
  
          self.msg("Projects database updated successfully.")
  
          deleted_aliases = (set(aliases_database.aliases.keys()) -
                             set(aliases_after_update.keys()))
          added_aliases = (set(aliases_after_update.keys()) -
                           set(aliases_database.aliases.keys()))
  
          modified_aliases = set()
          for alias, mapping in six.iteritems(aliases_after_update):
              if (alias in aliases_database
                      and aliases_database[alias][:2] != mapping[:2]):
                  modified_aliases.add(alias)
  
          if added_aliases:
              self.msg("\nThe following shared aliases have been added:\n")
              show_aliases(added_aliases)
  
          if deleted_aliases:
              self.msg("\nThe following shared aliases have been removed:\n")
              for alias in deleted_aliases:
                  self.msg(alias)
  
          if modified_aliases:
              self.msg("\nThe following shared aliases have been updated:\n")
              show_aliases(modified_aliases)