Store order of transactions in block in Transaction objects

bitcoinlib/db.py

@@ -413,6 +413,7 @@ class DbTransaction(Base):
     raw = Column(LargeBinary,
                  doc="Raw transaction hexadecimal string. Transaction is included in raw format on the blockchain")
     verified = Column(Boolean, default=False, doc="Is transaction verified. Default is False")
+    order_n = Column(Integer, doc="Order of transaction in block")
 
     __table_args__ = (
         UniqueConstraint('wallet_id', 'txid', name='constraint_wallet_transaction_hash_unique'),

bitcoinlib/services/services.py

@@ -716,7 +716,8 @@ def commit(self):
     def _parse_db_transaction(db_tx):
         t = Transaction(locktime=db_tx.locktime, version=db_tx.version, network=db_tx.network_name,
                         fee=db_tx.fee, txid=db_tx.txid.hex(), date=db_tx.date, confirmations=db_tx.confirmations,
-                        block_height=db_tx.block_height, status='confirmed', witness_type=db_tx.witness_type.value)
+                        block_height=db_tx.block_height, status='confirmed', witness_type=db_tx.witness_type.value,
+                        order_n=db_tx.order_n)
         for n in db_tx.nodes:
             if n.is_input:
                 if n.ref_txid == b'\00' * 32:

bitcoinlib/transactions.py

@@ -1065,7 +1065,8 @@ def load(txid=None, filename=None):
     def __init__(self, inputs=None, outputs=None, locktime=0, version=None,
                  network=DEFAULT_NETWORK, fee=None, fee_per_kb=None, size=None, txid='', txhash='', date=None,
                  confirmations=None, block_height=None, block_hash=None, input_total=0, output_total=0, rawtx=b'',
-                 status='new', coinbase=False, verified=False, witness_type='segwit', flag=None, replace_by_fee=False):
+                 status='new', coinbase=False, verified=False, witness_type='segwit', flag=None, replace_by_fee=False,
+                 order_n=None):
         """
         Create a new transaction class with provided inputs and outputs.
 
@@ -1118,6 +1119,8 @@ def __init__(self, inputs=None, outputs=None, locktime=0, version=None,
         :type witness_type: str
         :param flag: Transaction flag to indicate version, for example for SegWit
         :type flag: bytes, str
+        :param order_n: Order of transaction in block. Used when parsing blocks
+        :type order_n: int
 
         """
 
@@ -1178,6 +1181,7 @@ def __init__(self, inputs=None, outputs=None, locktime=0, version=None,
         self.witness_type = witness_type
         self.replace_by_fee = replace_by_fee
         self.change = 0
+        self.order_n = order_n
         self.calc_weight_units()
         if self.witness_type not in ['legacy', 'segwit']:
             raise TransactionError("Please specify a valid witness type: legacy or segwit")