mirror of
https://github.com/planetmint/planetmint.git
synced 2025-11-25 23:15:44 +00:00
48 lines
1.8 KiB
Python
48 lines
1.8 KiB
Python
# Copyright © 2020 Interplanetary Database Association e.V.,
|
|
# Planetmint and IPDB software contributors.
|
|
# SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
|
|
# Code is Apache-2.0 and docs are CC-BY-4.0
|
|
|
|
from planetmint.utils import condition_details_has_owner
|
|
from planetmint.backend import query
|
|
from transactions.common.transaction import TransactionLink
|
|
|
|
|
|
class FastQuery:
|
|
"""Database queries that join on block results from a single node."""
|
|
|
|
def __init__(self, connection):
|
|
self.connection = connection
|
|
|
|
def get_outputs_by_public_key(self, public_key):
|
|
"""Get outputs for a public key"""
|
|
txs = query.get_owned_ids(self.connection, public_key)
|
|
return [
|
|
TransactionLink(tx.id, index)
|
|
for tx in txs
|
|
for index, output in enumerate(tx.outputs)
|
|
if condition_details_has_owner(output.condition.details, public_key)
|
|
]
|
|
|
|
def filter_spent_outputs(self, outputs):
|
|
"""Remove outputs that have been spent
|
|
|
|
Args:
|
|
outputs: list of TransactionLink
|
|
"""
|
|
links = [o.to_dict() for o in outputs]
|
|
txs = query.get_spending_transactions(self.connection, links)
|
|
spends = {TransactionLink.from_dict(input.fulfills.to_dict()) for tx in txs for input in tx.inputs}
|
|
return [ff for ff in outputs if ff not in spends]
|
|
|
|
def filter_unspent_outputs(self, outputs):
|
|
"""Remove outputs that have not been spent
|
|
|
|
Args:
|
|
outputs: list of TransactionLink
|
|
"""
|
|
links = [o.to_dict() for o in outputs]
|
|
txs = query.get_spending_transactions(self.connection, links)
|
|
spends = {TransactionLink.from_dict(input.fulfills.to_dict()) for tx in txs for input in tx.inputs}
|
|
return [ff for ff in outputs if ff in spends]
|