appengine.py 文件源码

def get_value_for_datastore(self, model_instance):
    logger.info("get: Got type " + str(type(model_instance)))
    cred = super(CredentialsProperty,
                 self).get_value_for_datastore(model_instance)
    if cred is None:
      cred = ''
    else:
      cred = cred.to_json()
    return db.Blob(cred)

  # For reading from datastore.