1317 # entity adapters #############################################################

  1318 

  1319 class Adapter(AppObject):

  1320     """base class for adapters"""

  1321     __registry__ = 'adapters'

  1322 

  1323 

  1324 class EntityAdapter(Adapter):

  1325     """base class for entity adapters (eg adapt an entity to an interface)

  1326 

  1327     An example would be:

  1328 

  1329     >>> some_entity.cw_adapt_to('IDownloadable')

  1330     """

  1331     def __init__(self, _cw, **kwargs):

  1332         try:

  1333             self.entity = kwargs.pop('entity')

  1334         except KeyError:

  1335             self.entity = kwargs['rset'].get_entity(kwargs.get('row') or 0,

  1336                                                     kwargs.get('col') or 0)

  1337         Adapter.__init__(self, _cw, **kwargs)

  1338