有Django List View模型排序吗？ [英] Is there Django List View model sort?

问题描述

我在基于类的视图中使用了 ListView ，我想知道是否有一种方法可以对模板上的模型对象集进行排序。这是我到目前为止的内容：

I'm using ListView in my Class Based Views and I was wondering if there was a way to display the model object set on the template by sorting it. This is what I have so far:

我的观点：

class Reviews(ListView):
    model = ProductReview
    paginate_by = 50
    template_name = 'review_system/reviews.html'

模型 ProductReview 有一个 date_created 字段。我想按降序对日期进行排序。我该如何实现？

The model ProductReview has a date_created field. I'd like to sort the date in descending order. How can I achieve this?

推荐答案

设置 ordering 视图的属性。

Set the ordering attribute for the view.

class Reviews(ListView):
    model = ProductReview
    paginate_by = 50
    template_name = 'review_system/reviews.html'

    ordering = ['-date_created']

如果您需要动态更改顺序，则可以使用 get_ordering 。

If you need to change the ordering dynamically, you can use get_ordering instead.

class Reviews(ListView):
    ...
    def get_ordering(self):
        ordering = self.request.GET.get('ordering', '-date_created')
        # validate ordering here
        return ordering

如果您始终对固定日期字段进行排序，则可能对 ArchiveIndexView 。

If you are always sorting a fixed date field, you may be interested in the ArchiveIndexView.

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，除非您进行设置，否则 ArchiveIndexView 不会显示带有日期的对象 allow_future 到 True 。

Note that ArchiveIndexView won't show objects with a date in the future unless you set allow_future to True.

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