def get_min_max_values(model, fld):
# given a model, get minimal and maximal values for the date field from solr
qry = SearchQuerySet().models(model).stats(fld)
results = qry.stats_results()
if not results:
return (None, None)
raise Exception('??')
min_val = results[fld]['min']
max_val = results[fld]['max']
return min_val, max_val
def get_min_max_dates(model, fld='date'):
# given a model, get minimal and maximal values for the date field from solr
qry = SearchQuerySet().models(model).stats(fld)
results = qry.stats_results()
if not results:
# fail silently
return datetime.date.today(), datetime.date.today()
min_date = results[fld]['min']
max_date = results[fld]['max']
min_date = min_date.split('T')[0]
min_date = datetime.datetime.strptime(min_date, '%Y-%m-%d')
max_date = max_date.split('T')[0]
max_date = datetime.datetime.strptime(max_date, '%Y-%m-%d')
return min_date, max_date
