def get_health_by_date(cls, user, range_type, date_str):
"""
Get queryset of health datas by range
:param user: user object
:param range_type: dates range type - week, month or year
:param date_str: date string
:return: queryset of health datas
:rtype: queryset
"""
date_format = get_date_format(range_type)
# get health queryset
health = cls.objects.filter(user=user).order_by("related_date")
if range_type in (ChartTimeRange.YEAR, ChartTimeRange.MONTH):
date = datetime.strptime(date_str, date_format)
health = health.filter(related_date__year=date.strftime("%Y"))
if range_type == ChartTimeRange.MONTH:
health = health.filter(related_date__month=date.strftime("%m"))
elif range_type == ChartTimeRange.WEEK:
date = datetime.strptime(date_str, date_format)
start_date = date.strftime("%Y-%m-%d")
end_date = date + timedelta(days=6)
end_date = end_date.strftime("%Y-%m-%d")
health = health.filter(related_date__range=[start_date, end_date])
return health
def __init__(self, user, range_type, date=None):
self.date_format = get_date_format(range_type)
self.range_type = range_type
self.user = user
if date:
self.date = datetime.strptime(date, self.date_format)
self.queryset = self._get_queryset()