Django 按相关选项的数量筛选。德扬戈
我有以下看法:Django 按相关选项的数量筛选。德扬戈,django,Django,我有以下看法: class IndexView(generic.ListView): template_name = "polls/index.html" context_object_name = "latest_poll_list" def get_queryset(self): """ Return the last five active published polls with at least two choi
class IndexView(generic.ListView):
template_name = "polls/index.html"
context_object_name = "latest_poll_list"
def get_queryset(self):
"""
Return the last five active published polls with at least
two choices.
"""
return Poll.objects.filter(pub_date__lte=timezone.now(),
is_active__exact=True,
).order_by('-pub_date')[:5]
我只想公布有两个或更多选择的民意调查。
我尝试了许多变体,但都不能正常工作
我如何才能巧妙地实现这一点?使用:
使用:
from django.db.models import Count
Poll.objects.filter(pub_date__lte=timezone.now(), is_active__exact=True) \
.annotate(num_choices=Count('choice')) \
.filter(num_choices__gte=2) \
.order_by('-pub_date')[:5]