feat: add get_latest_txs query #3

Merged
williamluke merged 1 commits from feat/get_latest_txs into lash/backmerge 2022-02-08 13:01:13 +01:00
4 changed files with 124 additions and 1 deletions
Showing only changes of commit 7a36cd1e41 - Show all commits

1
.gitignore vendored
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@ -5,3 +5,4 @@ build/
dist/
*.html
*.egg-info/
.venv

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@ -462,6 +462,70 @@ def get_account_tx(chain_spec, address, as_sender=True, as_recipient=True, count
return txs
def get_latest_txs(chain_spec, count=10, since=None, until=None, status=None, not_status=None, status_target=None, session=None):
"""Returns the lastest local queue transactions
The since parameter effect depends on its type. Results are returned inclusive of the given parameter condition.
:param chain_spec: Chain spec for transaction network
:type chain_spec: chainlib.chain.ChainSpec
:param status: Only include transactions where the given status bits are set
:type status: chainqueue.enum.StatusEnum
:param not_status: Only include transactions where the given status bits are not set
:type not_status: chainqueue.enum.StatusEnum
:param status_target: Only include transaction where the status argument is exact match
:type status_target: chainqueue.enum.StatusEnum
:param session: Backend state integrity session
:type session: varies
:raises ValueError: If address is set to be neither sender nor recipient
:returns: Transactions
:rtype: dict, with transaction hash as key, signed raw transaction as value
"""
txs = {}
session = SessionBase.bind_session(session)
try:
filter_offset = sql_range_filter(session, criteria=since)
filter_limit = sql_range_filter(session, criteria=until)
except NotLocalTxError as e:
logg.error('query build failed: {}'.format(e))
return {}
q = session.query(Otx)
q = q.join(TxCache)
if filter_offset != None:
if filter_offset[0] == 'id':
q = q.filter(Otx.id>=filter_offset[1])
elif filter_offset[0] == 'date':
q = q.filter(Otx.date_created>=filter_offset[1])
if filter_limit != None:
if filter_limit[0] == 'id':
q = q.filter(Otx.id<=filter_limit[1])
elif filter_limit[0] == 'date':
q = q.filter(Otx.date_created<=filter_limit[1])
if status != None:
if status_target == None:
status_target = status
q = q.filter(Otx.status.op('&')(status)==status_target)
if not_status != None:
q = q.filter(Otx.status.op('&')(not_status)==0)
q = q.order_by(Otx.nonce.asc(), Otx.date_created.asc()).limit(count)
results = q.all()
for r in results:
if txs.get(r.tx_hash) != None:
logg.debug('tx {} already recorded'.format(r.tx_hash))
continue
txs[r.tx_hash] = r.signed_tx
SessionBase.release_session(session)
return txs
def count_tx(chain_spec, sender=None, status=None, status_target=None, session=None):
"""Count transaction records matching the given criteria.

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@ -1 +0,0 @@
chainlib==0.0.9a10

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@ -345,6 +345,65 @@ class TestTxQuery(TestTxBase):
txs = get_account_tx(self.chain_spec, self.alice, as_sender=True, as_recipient=False, not_status=StatusBits.QUEUED, status=StatusBits.IN_NETWORK, session=self.session)
self.assertEqual(len(txs.keys()), 1)
def test_latest_txs(self):
nonce_hashes = [self.tx_hash]
tx_hash = add_0x(os.urandom(32).hex())
signed_tx = add_0x(os.urandom(128).hex())
create(
self.chain_spec,
42,
self.alice,
tx_hash,
signed_tx,
session=self.session,
)
txc = TxCache(
tx_hash,
self.alice,
self.bob,
self.foo_token,
self.bar_token,
self.from_value,
self.to_value,
session=self.session,
)
self.session.add(txc)
self.session.commit()
nonce_hashes.append(tx_hash)
time_between = datetime.datetime.utcnow()
tx_hash = add_0x(os.urandom(32).hex())
signed_tx = add_0x(os.urandom(128).hex())
create(
self.chain_spec,
41,
self.alice,
tx_hash,
signed_tx,
session=self.session,
)
txc = TxCache(
tx_hash,
self.alice,
self.bob,
self.foo_token,
self.bar_token,
self.from_value,
self.to_value,
session=self.session,
)
self.session.add(txc)
nonce_hashes.append(tx_hash)
txs = get_latest_txs(self.chain_spec, session=self.session)
self.assertEqual(len(txs.keys()), 3)
txs = get_latest_txs(self.chain_spec, count=1, session=self.session)
self.assertEqual(len(txs.keys()), 1)
if __name__ == '__main__':
unittest.main()