def _load_calendar(self, rdr):
"""Fetch the calendar table, creating :class:`Service` objects.
Given a calendar row, create the details for each date.
Mapping from day number to day "name".
Must match the keys in GTF data.
"""
Service.set_db( settings.db )
services_by_date= defaultdict(set)
for row in rdr:
start_date= datetime.datetime.strptime( row['start_date'], '%Y%m%d' ).date()
end_date= datetime.datetime.strptime( row['end_date'], '%Y%m%d' ).date()
for d in xrange((end_date-start_date).days+1):
date= start_date + datetime.timedelta(days=d)
day_name= self.weekday_name[date.weekday()]
if row[day_name] == '1':
services_by_date[date].add(row['service_id'])
for date in sorted(services_by_date):
if date.day == 1:
time.sleep(0.25)
previous= list( Service.view( 'service/bydate', key=date.strftime("%Y-%m-%d") ) )
if previous:
settings.db.delete_docs( previous )
serv= Service(
date= date,
day_of_week= self.weekday_name[date.weekday()].title(),
services= list( sorted(services_by_date[date]) ),
)
#print( serv, settings.db, Service.get_db() )
settings.db.save_doc(serv)
def get_services_today( today=None ):
"""Returns the Service ID applicable today.
Examines calendar and calendar dates.
:param today: A :class:`datetime.date` object.
If omitted, the current date is used.
:returns: A sequence of service id strings that apply to this date.
"""
Service.set_db(settings.db)
if not today:
today= datetime.datetime.today().date()
svc= list( Service.view( 'service/bydate', key=today.strftime("%Y-%m-%d")) )
if not svc: return []
return svc[0].services
def _load_calendar_dates(self, rdr):
"""Fetch the calendar_dates table, updating the :class:`Service` objects.
Can only be done successfully **after** the core calendar has been loaded.
These are add/remove changes to the calendar.
"""
Service.set_db( settings.db )
for row in rdr:
date= datetime.datetime.strptime( row['date'], '%Y%m%d' ).date()
docs= list( Service.view( 'service/bydate', key=date.strftime("%Y-%m-%d") ) )
if docs:
serv= docs[0]
if row['exception_type'] == '1': # Add
serv.services.append( row['service_id'])
elif row['exception_type'] == '2' and row['service_id'] in serv.services: # Remove
serv.services.remove( row['service_id'])
elif row['exception_type'] == '2' and row['service_id'] not in serv.services:
# Wasn't there to begin with? Weird.
pass
else:
raise GTFException( "Unknown Calendar Date {0!r}".format(row) )
else:
# Missing date? Weird.
pass
serv.save()
