def test_not_first_create_not_midnight_no_open_rate_first_set(self):
self.new_rate.last_trade_at = datetime(2019, 3, 10, 1, 0, 0)
self.new_rate = fill_rate_open(new_rate=self.new_rate,
current_rate=self.current_rate)
self.assertEqual(self.new_rate.rate_open, None)
def test_first_create_midnight_open_rate_exists(self):
self.new_rate.rate_open = Decimal("10")
self.new_rate.last_trade_at = datetime(2019, 3, 9, 0, 0, 0)
self.new_rate = fill_rate_open(new_rate=self.new_rate,
current_rate=None)
self.assertEqual(self.new_rate.rate_open, Decimal("10"))
def save_rate(the_pair_data: PairData) -> None:
new_rate = rate_from_pair_data(the_pair_data, exchange_obj.id)
current_rate = (db_session.query(Rate).filter_by(
from_currency=new_rate.from_currency,
to_currency=new_rate.to_currency,
exchange_id=exchange_obj.id,
).first())
new_rate = fill_rate_open(new_rate, current_rate)
if current_rate:
new_rate.id = current_rate.id
db_session.merge(new_rate)
else:
db_session.add(new_rate)
