code: def get_user_home(self, user):
          
          user_home = self._conf['user_home']
          if user_home:
              if callable(user_home):
                  return user_home(user)
              elif isinstance(user_home, six.string_types):
                  # Assume we've got a URL if there's a slash in it
                  if '/' in user_home:
                      return user_home
                  else:
                      mod, func = user_home.rsplit(".", 1)
                      return getattr(import_module(mod), func)(user)
              # If it's not callable and not a string, it's wrong.
              raise ValueError('The user_home setting must be either a string '
                               'or a callable object (e.g. a function).')
          else:
              return self.get_absolute_url()
docs: Returns the default URL for a particular user.
  
          This method can be used to customize where a user is sent when
          they log in, etc. By default it returns the value of
          :meth:`get_absolute_url`.
  
          An alternative function can be supplied to customize this behavior
          by specifying a either a URL or a function which returns a URL via
          the ``"user_home"`` key in ``HORIZON_CONFIG``. Each of these
          would be valid::
  
              {"user_home": "/home",}  # A URL
              {"user_home": "my_module.get_user_home",}  # Path to a function
              {"user_home": lambda user: "/" + user.name,}  # A function
              {"user_home": None,}  # Will always return the default dashboard
  
          This can be useful if the default dashboard may not be accessible
          to all users. When user_home is missing from HORIZON_CONFIG,
          it will default to the settings.LOGIN_REDIRECT_URL value.