128 

   129 

   130 class CWCache(AnyEntity):

   131     """Cache"""

   132     __regid__ = 'CWCache'

   133     fetch_attrs, cw_fetch_order = fetch_config(['name'])

   134 

   135     def __init__(self, *args, **kwargs):

   136         warn('[3.19] CWCache entity type is going away soon. '

   137              'Other caching mechanisms can be used more reliably '

   138              'to the same effect.',

   139              DeprecationWarning)

   140         super(CWCache, self).__init__(*args, **kwargs)

   141 

   142     def touch(self):

   143         self._cw.execute('SET X timestamp %(t)s WHERE X eid %(x)s',

   144                          {'t': datetime.now(), 'x': self.eid})

   145 

   146     def valid(self, date):

   147         if date:

   148             return date > self.timestamp

   149         return False