Django Admin：获取QuerySet根据GET字符串进行过滤，完全如变更列表所示？

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问题描述

在Django管理员中，用户可以设置限制更改列表中显示的行的过滤器。如何使用查询字符串定义的过滤器获取QuerySet实例？例如，如果我通过了start_date_gte = 2009-11-06，Django管理员将在某处应用一个qs.filter（start_date__gte ...）如何访问这样的QuerySet？

In the Django admin, the user can set filters which limit the rows displayed in the change list. How can I get a QuerySet instance with filters set as defined by the query string? For instance, if I pass ?start_date_gte=2009-11-06, the Django admin will apply a qs.filter(start_date__gte...) somewhere. How can I access such a QuerySet?

我需要这个，因为显然我不想重写这些GET参数的代码，并且相应地过滤（）sa QuerySet。

I need this since obviously I don't want to rewrite the code that takes these GET parameters and filter()s a QuerySet accordingly.

推荐答案

看起来很有趣。但是，我在谈论在Admin中使用该QuerySet。找到答案，见下文：

Looks interesting. However, I was talking about using that QuerySet within the Admin. Found the answer, see below:

class MyAdmin(admin.ModelAdmin):
  def changelist_view(self, request, extra_context=None):
    from django.contrib.admin.views.main import ChangeList
    cl = ChangeList(request, self.model, self.list_display, self.list_display_links, self.list_filter, self.date_hierarchy, self.search_fields, self.list_select_related, self.list_per_page, self.list_editable, self)
    # getting query set with same filters like current change list
    filtered_query_set = cl.get_query_set()

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queryset