blocks.py 文件源码

def get(self):
        """API endpoint to get the related blocks for a transaction.

        Return:
            A ``list`` of ``block_id``s that contain the given transaction. The
            list may be filtered when provided a status query parameter:
            "valid", "invalid", "undecided".
        """
        parser = reqparse.RequestParser()
        parser.add_argument('transaction_id', type=str, required=True)
        parser.add_argument('status', type=str, case_sensitive=False,
                            choices=[Bigchain.BLOCK_VALID, Bigchain.BLOCK_INVALID, Bigchain.BLOCK_UNDECIDED])

        args = parser.parse_args(strict=True)
        tx_id = args['transaction_id']
        status = args['status']

        pool = current_app.config['bigchain_pool']

        with pool() as bigchain:
            block_statuses = bigchain.get_blocks_status_containing_tx(tx_id)
            blocks = [block_id for block_id, block_status in block_statuses.items()
                      if not status or block_status == status]

        return blocks