def approx_date_diff(start,end,mode="e",as_years=False):
"""
A tag for transforming approximate dates into actual dates
"""
if not end:
end = datetime.date.today()
elif not hasattr(end,'date'):
print end.split('-')
end = ApproximateDate(*map(int,end.split('-'))).date(mode)
if not start:
start = datetime.date.today()
elif not hasattr(start,'date'):
print "s", start
print start.split('-')
start = ApproximateDate(*map(int,start.split('-'))).date(mode)
days = (end - start).days
if as_years:
days_to_years(days)
else:
return days
def approx_date_diff(start, end, mode="e", as_years=False):
"""
A tag for transforming approximate dates into actual dates
"""
if not end:
end = datetime.date.today()
elif not hasattr(end, 'date'):
print end.split('-')
end = ApproximateDate(*map(int, end.split('-'))).date(mode)
if not start:
start = datetime.date.today()
elif not hasattr(start, 'date'):
print "s", start
print start.split('-')
start = ApproximateDate(*map(int, start.split('-'))).date(mode)
days = (end - start).days
if as_years:
days_to_years(days)
else:
return days
def events_api(request):
aggregators = request.GET.getlist('aggregator',['chamber__title'])
filters = request.GET.getlist('filter',[])
since = request.GET.get('since',None)
min_agg = request.GET.get('min',None)
smooth = request.GET.get('smooth',False) is not False #samples only at start of service
check_dates = request.GET.get('check_dates',False) is not False #and smooth # only do extra date checking if smooth otherwise this will thrash the DB
show_totals = request.GET.get('totals',False) is not False
fils = {}
for f in filters:
fil,val = f.split('|')
fils[fil]=val
event_type = models.Service.objects
if since:
since = ApproximateDate(*map(int,since.split('-'))).early()
#events = event_type.filter(Q(end_date__gt=since)|Q(end_date='')).filter(**fils) # Pre-filter the events to look at
events = event_type.filter(**fils) # Pre-filter the events to look at
from datetime import timedelta, date
available_keys = []
candidate_keys = events.values(*aggregators).order_by().distinct()
if min_agg:
candidate_keys = candidate_keys.annotate(count=Count('person'))
totals = {}
ds = key_dates = {}
for k in candidate_keys:
if min_agg:
l = [k[agg] for agg in aggregators if k[agg] is not None and k['count'] > int(min_agg)]
else:
l = [k[agg] for agg in aggregators if k[agg] is not None]
if l:
k = '-'.join(l)
ds[k]={'keys':l,'data':{}} # set up whole date structure here
available_keys.append(k)
def get_date_data_for_query(query,query_date):
# We call this in two places and only within this function, and it needs to modify a ton of local stuff
# So a local function with 2 arguments is a better pattern than a module function with the 7 or so arguments.
membership_aggs = [a for a in aggregators if "membership" in a]
if check_dates and membership_aggs:
for a in membership_aggs:
f=a.split("membership",1)[0]+'membership' # Get just the membership part
query &= Q(**{f+'__start_date__lte':query_date})
query &= (Q(**{f+'__end_date__gte':query_date}) | Q(**{f+'__end_date__isnull':True}))
val = events.filter(query).values(*aggregators).order_by().distinct().annotate(*[Count(a) for a in aggregators])
#print val
for k in ds.keys():
ds[k]['data'][str(query_date)] = 0
for v in val:
agg_var = "-".join([str(v[x]) for x in aggregators])
if agg_var in ds.keys():
ds[agg_var]['data'][str(query_date)] = int(v[aggregators[0]+'__count'])
if show_totals:
total = events.filter(query).count()
totals[str(query_date)] = total
for e in events.order_by("start_date"):
dates = [e.start_date,e.end_date]
if smooth:
dates = [e.start_date]
for event_date in dates:
if event_date:
day_after = event_date + timedelta(days=1)
days = [day_after]
if not smooth:
day_before = event_date - timedelta(days=1)
days = [day_before,day_after]
for query_date in days:
if not since or query_date > since:
query = Q(start_date__lte=query_date) & (Q(end_date__gt= query_date) | Q(end_date__isnull=True))
#get_date_data_for_query(key_dates,events,query,query_date,aggregators,available_keys)
get_date_data_for_query(query,query_date)
today = date.today()
if today not in key_dates.keys():
query = Q(end_date__isnull=True)
#get_date_data_for_query(key_dates,events,query,today,aggregators,available_keys)
get_date_data_for_query(query,today)
# sort the dates properly
keys = []
for agg,struct in key_dates.items():
d = struct['data']
struct['data'] = OrderedDict(sorted(d.items(), key=lambda t: t[0]))
output = {'metadata':[],'data':key_dates}
if show_totals:
output['totals'] = totals
return output
