57 lines
2.1 KiB
Python
57 lines
2.1 KiB
Python
# standard imports
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import logging
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import datetime
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# third-party imports
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from cic_cache.db.models.base import SessionBase
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logg = logging.getLogger()
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def list_transactions_mined(session, offset, limit):
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"""Executes db query to return all confirmed transactions according to the specified offset and limit.
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:param offset: Offset in data set to return transactions from
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:type offset: int
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:param limit: Max number of transactions to retrieve
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:type limit: int
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:result: Result set
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:rtype: SQLAlchemy.ResultProxy
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"""
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s = "SELECT block_number, tx_index FROM tx ORDER BY block_number DESC, tx_index DESC LIMIT {} OFFSET {}".format(limit, offset)
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r = session.execute(s)
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return r
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def list_transactions_account_mined(session, address, offset, limit):
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"""Same as list_transactions_mined(...), but only retrieves transaction where the specified account address is sender or recipient.
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:param address: Address to retrieve transactions for.
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:type address: str, 0x-hex
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:param offset: Offset in data set to return transactions from
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:type offset: int
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:param limit: Max number of transactions to retrieve
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:type limit: int
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:result: Result set
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:rtype: SQLAlchemy.ResultProxy
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"""
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s = "SELECT block_number, tx_index FROM tx WHERE sender = '{}' OR recipient = '{}' block_number DESC, tx_index DESC LIMIT {} OFFSET {}".format(address, address, limit, offset)
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r = session.execute(s)
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return r
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def add_transaction(session, tx_hash, block_number, tx_index, sender, receiver, source_token, destination_token, success, timestamp):
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date_block = datetime.datetime.fromtimestamp(timestamp)
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s = "INSERT INTO tx (tx_hash, block_number, tx_index, sender, recipient, source_token, destination_token, success, date_block) VALUES ('{}', {}, {}, '{}', '{}', '{}', '{}', {}, '{}')".format(
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tx_hash,
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block_number,
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tx_index,
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sender,
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receiver,
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source_token,
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destination_token,
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success,
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date_block,
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)
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session.execute(s)
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