Question

我在模型中使用ManyToManyField。但是，当我在字段上使用自定义queryset时，会出现验证错误

Select a valid choice. 2 is not one of the available choices.

因为这一行：

self.fields['user_groups'].queryset = Groups.objects.filter(group_company=self.user_company)

但是当我在没有上面一行的情况下使用它时，它工作得很好。

Forms.py

class ManagerProfileForm(forms.ModelForm):
    class Meta:
        model = UserProfile
        fields = ['user_company', 'user_groups']

    def __init__(self, *args, **kwargs):
        self.user_company = kwargs.pop('user_company', None)
        super().__init__(*args, **kwargs)
        self.fields['user_groups'].queryset = Groups.objects.filter(group_company=self.user_company)

Model.py

class UserProfile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    user_company = models.ForeignKey(Company, on_delete=models.CASCADE)
    user_groups = models.ManyToManyField(Groups,related_name='user_groups')

Views.py

@login_required
def ManagerAddView(request):
    if request.method == 'POST':
        random_password = User.objects.make_random_password() # generate password here 
        ur_form = ManagerRegisterForm(request.POST, pwd=random_password)
        pr_form = ManagerProfileForm(request.POST, request.FILES)

        user_role = ACLRoles.objects.get(acl_role_title='Manager')

        if ur_form.is_valid() and pr_form.is_valid():

            new_user = ur_form.save(commit=False)            
            new_user.username = new_user.email
            new_user.set_password(random_password)
            new_user.save()

            profile =  pr_form.save(commit=False)
            if profile.user_id is None:
                profile.user_id = new_user.id
                profile.user_role_id = user_role.id
                profile.user_company_id = request.user.userprofile.user_company.id
            profile.save()

            # this is where i am saving groups in my model
            for group in request.POST.getlist('user_groups'): # For many to many field
                profile.user_groups.add(group)

            email= ur_form.cleaned_data.get('email')
            messages.success(request, 'Your Account has been created for %s!' % email)
            return redirect('admin_managers')

    else:
        ur_form = ManagerRegisterForm()
        pr_form = ManagerProfileForm(user_company=request.user.userprofile.user_company.id)

    return render(request, 'admin/manager/managers_form.html', {'ur_form': ur_form, 'pr_form': pr_form})

多对多查询集错误

0 个答案: