我在基于类的视图中使用了ListView，我想知道是否有办法通过排序来显示模板上的模型对象集.这就是我目前的情况:
我的看法是:
class Reviews(ListView):
model = ProductReview
paginate_by = 50
template_name = 'review_system/reviews.html'
型号ProductReview具有date_created字段.我想把日期按降序排列.我怎样才能做到这一点呢？
为视图设置ordering属性.
class Reviews(ListView):
model = ProductReview
paginate_by = 50
template_name = 'review_system/reviews.html'
ordering = ['-date_created']
如果需要动态更改顺序，可以改用get_ordering.
class Reviews(ListView):
...
def get_ordering(self):
ordering = self.request.GET.get('ordering', '-date_created')
# validate ordering here
return ordering
如果你总是对固定日期字段进行排序，你可能会对ArchiveIndexView感兴趣.
from django.views.generic.dates import ArchiveIndexView
class Reviews(ArchiveIndexView):
model = ProductReview
paginate_by = 50
template_name = 'review_system/reviews.html'
date_field = "date_created"
请注意，除非将allow_future设置为True，否则ArchiveIndexView不会显示具有将来日期的对象.