admin.py 文件源码

 复制代码def needs_invoice(self, obj):
        if obj.last_invoice_date is None:
            return True
        date = now()
        if obj.quota_type.periodicity == obj.quota_type.ANUAL:
            start = make_aware(datetime.datetime(date.year, 1, 1), utc)
            return obj.last_invoice_date < start
        elif obj.quota_type.periodicity == obj.quota_type.ANUAL:
            if date.month == 12:
                year = date.year + 1
                month = 1
            else:
                year = date.year
                month = date.month + 1
            start = make_aware(datetime.datetime(year, month, 1), utc)
            return obj.last_invoice_date < start
        return False