如何过滤当前一周的Django查询集

时间:2019-01-12 22:16:27

标签: python django

我正在编写此客户管理过滤器,该过滤器仅需要对此/当前周的查询集进行过滤。我该如何实现

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

1 个答案:

答案 0 :(得分:1)

我认为仅获取本周的第一天和最后一天并执行过滤可能会更容易。您还可以使用__week lookup [Django-doc]来筛选星期编号,但是我们将使用该星期编号来提取 all 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=(week_start.weekday()-1)%7)