我需要得到每一个ISO周和年的项目数。我试了一下
from django.db.models.functions import ExtractWeek, ExtractYear
from django.db.models.aggregates import Count
count = myModel.objects.annotate(year=ExtractYear('created_at')) \
.annotate(week=ExtractWeek('created_at')) \
.values('year','week') \
.annotate(count=Count('week'))
但我的结果是
<QuerySet [{'year': 2019, 'week': 7, 'count': 1}, {'year': 2019, 'week': 7, 'count': 1}, {'year': 2019, 'week': 7, 'count': 1}, {'year': 2019, 'week': 7, 'count': 1}.......
我如何才能改变它,使我的结果是:
提前谢谢
