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.