def handle(self, **options):
#TODO replace settings dict with market table
exchange = []
if options.get('exchange'):
# force download of the specified exchange
for x in settings.TSB['downloads']:
if x['exchange'] == options.get('exchange'):
exchange.append(x)
break
if not exchange:
raise SystemExit('Nothing to do: exchange {} not found'.format(
options.get('exchange')))
else:
# for each exchange, check if it needs to be downloaded
for x in settings.TSB['downloads']:
exchange_time = datetime.now(timezone(x.get('timezone')))
if not is_weekday(exchange_time):
continue
if exchange_time.hour == x.get('time_h'):
exchange.append(x)
for x in exchange:
#FIXME: retries will cause delay *before* running next exchange!
# implementing delays in hours could be easy-ish (but how to
# remember which symbols need retrying?? - NoRedis??)
#TODO: implement datasource (now yahoo is always used)
#TODO: use -verbosity to see output when using cmd line
#TODO: with -verbosity=0 send *certain* messages to admin
Price.download_prices_today(currency=x.get('currency'),
num_retries=x.get('num_retries'))
def test_Price(self):
stock = Stock.objects.get(name='AAPL')
date1 = date(2010,1,5)
date2 = date(2010,1,10)
date3 = date(2010,1,15)
date4 = date(2010,1,20)
price_record = {'stock': stock, 'date': date2, 'open': 1., 'high': 1.,
'low': 1., 'close': 1., 'volume': 1 }
# _update_or_create
Price._update_or_create(**price_record)
self.assertEqual(Price.objects.all().count(), 1)
self.assertEqual(Price.objects.get(stock=stock).volume, 1)
price_record['volume'] = 100
Price._update_or_create(**price_record)
self.assertEqual(Price.objects.all().count(), 1)
self.assertEqual(Price.objects.get(stock=stock).volume, 100)
# get_latest_date
price_record['date'] = date1
Price._update_or_create(**price_record)
self.assertEqual(Price.get_latest_date(), date2)
price_record['date'] = date4
Price._update_or_create(**price_record)
self.assertEqual(Price.get_latest_date(), date4)
price_record['date'] = date3
Price._update_or_create(**price_record)
self.assertEqual(Price.get_latest_date(), date4)
self.assertEqual(Price.objects.all().count(), 4)
# insert_prices
data = []
for x in range(11,15):
data.append({'stock': stock, 'date': date(2010,1,x),
'open': 1., 'high': 1., 'low': 1., 'close': 1.,
'volume': x })
Price.insert_prices(data)
self.assertEqual(Price.objects.all().count(), 8)
Price.insert_prices([])
self.assertEqual(Price.objects.all().count(), 8)
