def get_owned_ids(self, owner):
"""Retrieve a list of `txid`s that can be used as inputs.
Args:
owner (str): base58 encoded public key.
Returns:
:obj:`list` of TransactionLink: list of `txid`s and `cid`s
pointing to another transaction's condition
"""
# get all transactions in which owner is in the `owners_after` list
response = self.connection.run(
r.table('bigchain', read_mode=self.read_mode).concat_map(
lambda doc: doc['block']['transactions']).filter(
lambda tx: tx['transaction']['conditions'].contains(
lambda c: c['owners_after'].contains(owner))))
owned = []
for tx in response:
# disregard transactions from invalid blocks
validity = self.get_blocks_status_containing_tx(tx['id'])
if Bigchain.BLOCK_VALID not in validity.values():
if Bigchain.BLOCK_UNDECIDED not in validity.values():
continue
# NOTE: It's OK to not serialize the transaction here, as we do not
# use it after the execution of this function.
# a transaction can contain multiple outputs (conditions) so we need to iterate over all of them
# to get a list of outputs available to spend
for index, cond in enumerate(tx['transaction']['conditions']):
# for simple signature conditions there are no subfulfillments
# check if the owner is in the condition `owners_after`
if len(cond['owners_after']) == 1:
if cond['condition']['details']['public_key'] == owner:
tx_link = TransactionLink(tx['id'], index)
else:
# for transactions with multiple `owners_after` there will be several subfulfillments nested
# in the condition. We need to iterate the subfulfillments to make sure there is a
# subfulfillment for `owner`
if util.condition_details_has_owner(
cond['condition']['details'], owner):
tx_link = TransactionLink(tx['id'], index)
# check if input was already spent
if not self.get_spent(tx_link.txid, tx_link.cid):
owned.append(tx_link)
return owned
def get_owned_ids(self, owner):
"""Retrieve a list of `txids` that can we used has inputs.
Args:
owner (str): base58 encoded public key.
Returns:
list: list of `txids` currently owned by `owner`
"""
# get all transactions in which owner is in the `new_owners` list
response = r.table('bigchain') \
.concat_map(lambda doc: doc['block']['transactions']) \
.filter(lambda tx: tx['transaction']['conditions']
.contains(lambda c: c['new_owners']
.contains(owner))) \
.run(self.conn)
owned = []
for tx in response:
# disregard transactions from invalid blocks
validity = self.get_blocks_status_containing_tx(tx['id'])
if Bigchain.BLOCK_VALID not in validity.values():
if Bigchain.BLOCK_UNDECIDED not in validity.values():
continue
# a transaction can contain multiple outputs (conditions) so we need to iterate over all of them
# to get a list of outputs available to spend
for condition in tx['transaction']['conditions']:
# for simple signature conditions there are no subfulfillments
# check if the owner is in the condition `new_owners`
if len(condition['new_owners']) == 1:
if condition['condition']['details'][
'public_key'] == owner:
tx_input = {'txid': tx['id'], 'cid': condition['cid']}
else:
# for transactions with multiple `new_owners` there will be several subfulfillments nested
# in the condition. We need to iterate the subfulfillments to make sure there is a
# subfulfillment for `owner`
if util.condition_details_has_owner(
condition['condition']['details'], owner):
tx_input = {'txid': tx['id'], 'cid': condition['cid']}
# check if input was already spent
if not self.get_spent(tx_input):
owned.append(tx_input)
return owned
def get_owned_ids(self, owner):
"""Retrieve a list of `txids` that can we used has inputs.
Args:
owner (str): base58 encoded public key.
Returns:
list: list of `txids` currently owned by `owner`
"""
# get all transactions in which owner is in the `new_owners` list
response = r.table('bigchain') \
.concat_map(lambda doc: doc['block']['transactions']) \
.filter(lambda tx: tx['transaction']['conditions']
.contains(lambda c: c['new_owners']
.contains(owner))) \
.run(self.conn)
owned = []
for tx in response:
# disregard transactions from invalid blocks
validity = self.get_blocks_status_containing_tx(tx['id'])
if Bigchain.BLOCK_VALID not in validity.values():
if Bigchain.BLOCK_UNDECIDED not in validity.values():
continue
# a transaction can contain multiple outputs (conditions) so we need to iterate over all of them
# to get a list of outputs available to spend
for condition in tx['transaction']['conditions']:
# for simple signature conditions there are no subfulfillments
# check if the owner is in the condition `new_owners`
if len(condition['new_owners']) == 1:
if condition['condition']['details']['public_key'] == owner:
tx_input = {'txid': tx['id'], 'cid': condition['cid']}
else:
# for transactions with multiple `new_owners` there will be several subfulfillments nested
# in the condition. We need to iterate the subfulfillments to make sure there is a
# subfulfillment for `owner`
if util.condition_details_has_owner(condition['condition']['details'], owner):
tx_input = {'txid': tx['id'], 'cid': condition['cid']}
# check if input was already spent
if not self.get_spent(tx_input):
owned.append(tx_input)
return owned
def get_owned_ids(self, owner):
"""Retrieve a list of ``txid`` s that can be used as inputs.
Args:
owner (str): base58 encoded public key.
Returns:
:obj:`list` of TransactionLink: list of ``txid`` s and ``cid`` s
pointing to another transaction's condition
"""
# get all transactions in which owner is in the `owners_after` list
response = backend.query.get_owned_ids(self.connection, owner)
owned = []
for tx in response:
# disregard transactions from invalid blocks
validity = self.get_blocks_status_containing_tx(tx['id'])
if Bigchain.BLOCK_VALID not in validity.values():
if Bigchain.BLOCK_UNDECIDED not in validity.values():
continue
# NOTE: It's OK to not serialize the transaction here, as we do not
# use it after the execution of this function.
# a transaction can contain multiple outputs (conditions) so we need to iterate over all of them
# to get a list of outputs available to spend
for index, cond in enumerate(tx['conditions']):
# for simple signature conditions there are no subfulfillments
# check if the owner is in the condition `owners_after`
if len(cond['owners_after']) == 1:
if cond['condition']['details']['public_key'] == owner:
tx_link = TransactionLink(tx['id'], index)
else:
# for transactions with multiple `owners_after` there will be several subfulfillments nested
# in the condition. We need to iterate the subfulfillments to make sure there is a
# subfulfillment for `owner`
if util.condition_details_has_owner(cond['condition']['details'], owner):
tx_link = TransactionLink(tx['id'], index)
# check if input was already spent
if not self.get_spent(tx_link.txid, tx_link.cid):
owned.append(tx_link)
return owned