python - 如何过滤本周的 django 查询集

Question

我正在编写此客户管理过滤器，仅需要过滤本周/本周的查询集。我怎样才能实现这个目标

class WeekFilter(admin.SimpleListFilter):
    title = _("Week")
    parameter_name = "week"

    def lookups(self, request, model_admin):
        return (
            ('1', 'This week'),
        )

    def queryset(self, request, queryset):
        if self.value() == '1':
            return queryset.filter() # HERE

我已经尝试过this queryset.filter(created_at__week__gte=1,created-at__week__lte=7) 但它没有按预期工作

Answer 1

我认为获取本周的第一天和最后一天并执行过滤可能会更容易。还可以使用 __week lookup [Django-doc] 进行过滤周数，但随后我们将获取具有该周数的所有年的所有记录。如果我们将其限制为一年，那么如果将一周分为两年，则可能会出现问题。

如果我们从星期一开始一周，我们可以使用:

from datetime import date, timespan

class WeekFilter(admin.SimpleListFilter):
    title = _("Week")
    parameter_name = "week"

    def lookups(self, request, model_admin):
        return (
            ('1', 'This week'),
        )

    def queryset(self, request, queryset):
        if self.value() == '1':
            week_start = date.today()
            week_start -= timedelta(days=week_start.weekday())
            week_end = week_start + timedelta(days=7)
            return queryset.filter(
                created_at__gte=week_start,
                created_at__lt=week_end
            )
        return queryset

对于从星期日开始的一周，您可以将 week_start 替换为:

            week_start -= timedelta(days=<b>(week_start.weekday()-1)%7</b>)