def _loading_dates(self, start, end, vfid): ''' Select date range which needs to be fetch from cache or data provider ''' key = self.holder.tsname(vfid) if start > end: end = start realstart = start realend = end if end.live: end = dates.prevbizday() else: end = end.date start = start.date _start = self.holder.start.get(key, None) _end = self.holder.end.get(key, None) load = True if _start: oned = timedelta(days=1) load = False if end > _end or start < _start: load = True if load: if end <= _end: end = _start - oned elif start >= _start: start = _end + oned if start > end: start = end return load, start, end, realstart, realend
def _loading_dates(self, start, end, vfid): ''' Select date range which needs to be fetch from cache or data provider ''' key = self.holder.tsname(vfid) if start > end: end = start realstart = start realend = end if end.live: end = dates.prevbizday() else: end = end.date start = start.date _start = self.holder.start.get(key,None) _end = self.holder.end.get(key,None) load = True if _start: oned = timedelta(days = 1) load = False if end > _end or start < _start: load = True if load: if end <= _end: end = _start - oned elif start >= _start: start = _end + oned if start > end: start = end return load, start, end, realstart, realend
def get_livedate(self, dte): dte = dates.get_livedate(dte) if not self.livecalc and dte.live: return dates.get_livedate(dates.prevbizday()) else: return dte
def history_dates(end): dt = end.dateonly if not LIVE_CALCULATION and end.live: dt = prevbizday(dt, 1) start = prevbizday(dt, DAYS_BACK) return start, dt
def history_dates(end): dt = end.dateonly if not LIVE_CALCULATION and end.live: dt = prevbizday(dt,1) start = prevbizday(dt,DAYS_BACK) return start, dt