forked from frankwiles/django-app-metrics
/
trending.py
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/
trending.py
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import datetime
from django.core.exceptions import ObjectDoesNotExist
from app_metrics.models import Metric, MetricItem, MetricDay, MetricWeek, MetricMonth, MetricYear
from app_metrics.utils import week_for_date, month_for_date, year_for_date, get_previous_month, get_previous_year
class InvalidMetric(Exception): pass
def trending_for_metric(metric=None, date=None):
""" Build a dictionary of trending values for a given metric """
if not isinstance(metric, Metric):
raise InvalidMetric('No Metric instance passed to trending_for_metric()')
if not date:
date = datetime.date.today()
data = {}
# Get current day values so far
if date == datetime.date.today():
data['current_day'] = _trending_for_current_day(metric)
data['yesterday'] = _trending_for_yesterday(metric)
data['week'] = _trending_for_week(metric)
data['month'] = _trending_for_month(metric)
data['year'] = _trending_for_year(metric)
return data
def _trending_for_current_day(metric=None):
date = datetime.date.today()
unaggregated_values = MetricItem.objects.filter(metric=metric)
aggregated_values = MetricDay.objects.filter(metric=metric, created=date)
count = 0
for u in unaggregated_values:
count = count + u.num
for a in aggregated_values:
count = count + a.num
return count
def _trending_for_yesterday(metric=None):
today = datetime.date.today()
yesterday_date = today - datetime.timedelta(days=1)
previous_week_date = today - datetime.timedelta(weeks=1)
previous_month_date = get_previous_month(today)
data = {
'yesterday': 0,
'previous_week': 0,
'previous_month': 0,
}
try:
yesterday = MetricDay.objects.get(metric=metric, created=yesterday_date)
data['yesterday'] = yesterday.num
except ObjectDoesNotExist:
pass
try:
previous_week = MetricDay.objects.get(metric=metric, created=previous_week_date)
data['previous_week'] = previous_week.num
except ObjectDoesNotExist:
pass
try:
previous_month = MetricDay.objects.get(metric=metric, created=previous_month_date)
data['previous_month'] = previous_month.num
except ObjectDoesNotExist:
pass
return data
def _trending_for_week(metric=None):
this_week_date = week_for_date(datetime.date.today())
previous_week_date = this_week_date - datetime.timedelta(weeks=1)
previous_month_week_date = get_previous_month(this_week_date)
previous_year_week_date = get_previous_year(this_week_date)
data = {
'week': 0,
'previous_week': 0,
'previous_month_week': 0,
'previous_year_week': 0,
}
try:
week = MetricWeek.objects.get(metric=metric, created=this_week_date)
data['week'] = week.num
except ObjectDoesNotExist:
pass
try:
previous_week = MetricWeek.objects.get(metric=metric, created=previous_week_date)
data['previous_week'] = previous_week.num
except ObjectDoesNotExist:
pass
try:
previous_month_week = MetricWeek.objects.get(metric=metric, created=previous_month_week_date)
data['previous_month_week'] = previous_month_week.num
except ObjectDoesNotExist:
pass
try:
previous_year_week = MetricWeek.objects.get(metric=metric, created=previous_year_week_date)
data['previous_year_week'] = previous_year_week.num
except ObjectDoesNotExist:
pass
return data
def _trending_for_month(metric=None):
this_month_date = month_for_date(datetime.date.today())
previous_month_date = get_previous_month(this_month_date)
previous_month_year_date = get_previous_year(this_month_date)
data = {
'month': 0,
'previous_month': 0,
'previous_month_year': 0
}
try:
month = MetricMonth.objects.get(metric=metric, created=this_month_date)
data['month'] = month.num
except ObjectDoesNotExist:
pass
try:
previous_month = MetricMonth.objects.get(metric=metric, created=previous_month_date)
data['previous_month'] = previous_month.num
except ObjectDoesNotExist:
pass
try:
previous_month_year = MetricMonth.objects.get(metric=metric, created=previous_month_year_date)
data['previous_month_year'] = previous_month_year.num
except ObjectDoesNotExist:
pass
return data
def _trending_for_year(metric=None):
this_year_date = year_for_date(datetime.date.today())
previous_year_date = get_previous_year(this_year_date)
data = {
'year': 0,
'previous_year': 0,
}
try:
year = MetricYear.objects.get(metric=metric, created=this_year_date)
data['year'] = year.num
except ObjectDoesNotExist:
pass
try:
previous_year = MetricYear.objects.get(metric=metric, created=previous_year_date)
data['previous_year'] = previous_year.num
except ObjectDoesNotExist:
pass
return data