添加m2m数据:带有基10的int()的文本无效

Question

从我的Profile模型到我的Skills模型，我有一个多到多的关系。如果我试图清除并向配置文件中添加新技能，就会得到invalid literal for int() with base 10: 'Python' (Python是处理的第一项技能)。

我不知道该怎么做，因为我100%肯定是将模型实例传递给user.profile.skills.add()。

skills = ['Python', 'PHP', 'back-end', 'CSS', 'MYSQL']
skills_to_add = []
for s in skills:
    try:
        skill = Skill.objects.get(name__iexact=s)
    except Skill.DoesNotExist:
        skill = Skill()
        skill.name = s
        skill.save()
    except Skill.MultipleObjectsReturned:
        print "Duplicate skill found: " + s
        continue

    skills_to_add.append(skill)

if len(skills_to_add):
    user.profile.skills.clear()
    user.profile.skills.add(*skills)

Answer 1

不应该向user.profile.skills添加字符串列表，应该添加Skill对象列表。

换句话说，使用skills_to_add而不是skills

Answer 2

skills = ['Python', 'PHP', 'back-end', 'CSS', 'MYSQL']
for s in skills:
    try:
        skill = Skill.objects.get(name__iexact=s)
    except Skill.DoesNotExist:
        skill = Skill()
        skill.name = s
        skill.save()

    except Skill.MultipleObjectsReturned:
        print "Duplicate skill found: " + s
        continue

    skills_to_add.append(skill)

if len(skills_to_add):
    user.profile.skills.clear()
    profile = Profile.objects.get(user_id=user.id)
    for obj in skills_to_add:
        profile.skills.add(obj)
    profile.save()

skills是配置文件模型中的字段m2m

...
skills = models.ManyToManyField(Skill,...)
...