内容：from django.db.models import Sum
from datetime import datetime, timedelta
start_date = datetime(2023, 7, 15)
end_date = datetime(2023, 7, 20) + timedelta(days=1)
date_range = []
current_date = start_date
while current_date < end_date:
date_range.append(current_date)
current_date += timedelta(days=1)
querysets = []
for date in date_range:
querysets.append(MyModel.objects.filter(date_field__range=[date, date+timedelta(days=1)]).values('date_field').annotate(total=Sum('my_field')))
for queryset in querysets:
for result in queryset:
print(result['date_field'], result['total'])
内容：from django.db.models import Sum from datetime import datetime, timedelta start_date = datetime(2023, 7, 15) end_date = datetime(2023, 7, 20) + timedelta(days=1) date_range = [] current_date = start_date while current_date < end_date: date_range.append(current_date) current_date += timedelta(days=1) querysets = [] for date in date_range: querysets.append(MyModel.objects.filter(date_field__range=[date, date+timedelta(days=1)]).values('date_field').annotate(total=Sum('my_field'))) for queryset in querysets: for result in queryset: print(result['date_field'], result['total'])
内容：有了，加我微信VIPdjango
内容：[https://www.django.cn/forum/forum-61764.html](https://www.django.cn/forum/forum-61764.html)
内容：解决方法通常是检查数据表的唯一约束设置是否正确，并确保没有重复的数据被插入到该字段中。如果数据表中已经存在重复值，需要手动去重或者删除其中一个重复值，以满足唯一约束条件。
内容：详细的请看这个链接：[https://www.django.cn/forum/forum-45760.html](https://www.django.cn/forum/forum-45760.html)