models.py 文件源码

def _update_spent(self):
        today = date.today()
        first_month_day = date(today.year, today.month, 1)
        spent = Record.objects.filter(user=self.user,
                                      transaction_type='EXP',
                                      created_at__gte=first_month_day)
        tags_list = []
        for tag in self.get_tags_list():
            tags_list.append(Q(tags=getattr(Record.tags, tag)))
        if self.tags_type == 'INCL':
            spent = spent.filter(reduce(OR, tags_list))
        if self.tags_type == 'EXCL':
            spent = spent.exclude(reduce(OR, tags_list))
        spent = spent.aggregate(spent=Sum('amount'))
        self.__spent = spent['spent'] if spent['spent'] else 0