Question

我正在努力使用django rest framework和django-filters（http://django-filter.readthedocs.io/en/master/）来过滤出生日期的生日。

最大的问题是使用django常用过滤器我需要做类似

的事情

class birthdayFilter(django_filters.rest_framework.FilterSet):
    day = django_filters.RangeFilter(name="born_date__day")
    month = django_filters.RangeFilter(name="born_date__month")

class Meta:
    Model = User
    fields = ['day','month']

如果用户选择这样的时间段，则会出现问题： 27/11至1/12

在这种情况下，我总是会收到一个空的服务器响应，因为默认情况下它会尝试获取大于27且小于1的日期，总是没有。

另一个问题是如果用户选择以下内容： 27/10至1/01或27/10至1/12

我认为解决方法是弄脏我的手并编写我自己的过滤器，但django过滤器的文档并不清楚如何做到这一点。

Answer 1

刚刚做过，没有经过全面测试，但似乎没问题。我只是认为时间段将通过＆＃34; dd / mm-dd / mm＆＃34;

def BirthdayFilter(queryset,name,value):

if not value:
    return queryset

#considering value will be : xx/xx-xx/xx
dateBegin,dateEnd  = value.split('-') #first split the Date Range
dayBegin,monthBegin = dateBegin.split('/')
dayBegin = int(dayBegin)
monthBegin = int(monthBegin)
dayEnd,monthEnd = dateEnd.split('/')
dayEnd = int(dayEnd)
monthEnd = int(monthEnd)

result = []

if monthEnd-monthBegin == 0: #dates at the same month, ok easy
    if dayBegin > dayEnd:#not allowed
        return result
    result = queryset.filter(data_nascimento__day__range = (dayBegin,dayEnd),data_nascimento__month = monthBegin)
elif abs(monthEnd - monthBegin) > 0: #crossing month
    #first the edges
    edgeStart = queryset.filter(data_nascimento__day__range = (dayBegin,31), data_nascimento__month = monthBegin)
    edgeEnd = queryset.filter(data_nascimento__day__range = (1,dayEnd), data_nascimento__month = monthEnd )
    result = edgeStart | edgeEnd

    if abs(monthEnd - monthBegin) > 1: #if it is bigger than 1, we have to add
        #months in between
        monthsInBetween = []
        if monthBegin > monthEnd: #calendar crossing years
            monthsInBetween = queryset.filter(data_nascimento__month__range = (monthBegin,12)) + Clientes.objects.filter(data_nascimento__month__range = (1,monthEnd))
        else:
            monthsInBetween = queryset.filter(data_nascimento__month__range = (monthBegin,monthEnd))
        result = result | monthsInBetween


class UserFilter(django_filters.rest_framework.FilterSet):
    birthday = django_filters.CharFilter(method = BirthdayFilter)

    class Meta:
       Model = User
       fields = ['birthday']

过滤日期字段内特定日期范围内的生日

1 个答案: