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 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
