int() 参数必须是字符串、类字节对象或数字，而不是 'dict'

Question

函数没有进入if条件，因为round是dict，match_round是int，所以报错，怎么解决？

我的模型视图集

 def destroy(self, request, *args, **kwargs):
    gameevent = self.get_object().gameevent
    match_round = self.get_object().match_round
    print(gameevent)
    print(match_round)
    round = Matchscore.objects.filter(gameevent=gameevent, match_round=match_round).values_list("match_round",flat=True).aggregate(Max("match_round"))
    print(round)
    if round == match_round:
        Matchscore.objects.get(match_round=round).delete()
        response = {"result": "successfully removed"}
    else:
        response = {"result": "can't delete this round"}
    return Response(response)

Answer 1

试试这个，

 def destroy(self, request, *args, **kwargs):
    gameevent = self.get_object().gameevent
    match_round = self.get_object().match_round
    print(gameevent)
    print(match_round)
    round = Matchscore.objects.filter(gameevent=gameevent, match_round=match_round).values_list("match_round",flat=True).aggregate(Max("match_round"))['match_round__max']
    print(round)
    if round == match_round:
        Matchscore.objects.get(match_round=round).delete()
        response = {"result": "successfully removed"}
    else:
        response = {"result": "can't delete this round"}
    return Response(response)

Answer 2

如果您想比较 Django 数据库对象在数据库中的身份，即共享相同的数据库行，则测试它们的 pk 是否相等。

if a_round.pk == match_round.pk:

如果基于其他字段的某些其他指标，请明确编码。

在问题中，round 根本不是 Django DB 对象，它是基于一些过滤对象的 values_list。因此，您需要从该查询的结果中提取一些值，并从 match_round 中提取相应的值，然后比较它们。我对这个问题没有足够的洞察力来暗示这种比较的性质。

int() 参数必须是字符串、类字节对象或数字，而不是 'dict'

int() argument must be a string, a bytes-like object or a number, not 'dict'

python

django

django-rest-framework