当我试图保存用户时，我在 django 中有 'NoneType' 对象没有属性 'groups'

Question

我是 django 的新手，我在 Admin 中有三个组：Medico、Paciente、Administrador。我只是有错误，AttributeError at /registro/ 'NoneType' object has no attribute 'groups'，但我的表单正在保存所有数据

# Registro del Sistema
def home_registro(request):
    if request.method == 'POST':
        formulario = PacienteFormulario(request.POST)
        if formulario.is_valid():
            paciente = formulario.save()
            grupo = Group.objects.get(name='Paciente')
            paciente.groups.add(grupo)
            return render(request, 'home/home_confirmacion.html')
    else:
        formulario = PacienteFormulario()
        context = {
            'formulario': formulario
        }
        return render(request, 'home/home_registro.html', context)

form.py:

class PacienteFormulario(UserCreationForm):
    class Meta:
        model = User
        fields = ('username', 'first_name', 'last_name', 'email', 'password1', 'password2')
            
    def save(self, commit = True):
        user = super().save(commit = False)
        user.email = self.cleaned_data['email']
        user.first_name = self.cleaned_data['first_name']
        user.last_name = self.cleaned_data['last_name']
        if commit:
            user.save()

错误：

line 35, in home_registro
    paciente.groups.add(grupo)
AttributeError: 'NoneType' object has no attribute 'groups'

我希望有人能帮助我。谢谢

Answer 1

您没有return save 方法中的用户：

class PacienteFormulario(UserCreationForm):
    class Meta:
        model = User
        fields = ('username', 'first_name', 'last_name', 'email', 'password1', 'password2')
            
    def save(self, commit = True):
        user = super().save(commit = False)
        user.email = self.cleaned_data['email']
        user.first_name = self.cleaned_data['first_name']
        user.last_name = self.cleaned_data['last_name']
        if commit:
            user.save()
        <b>return user</b>

但通常你不需要在这里覆盖 save(…)，通常 ModelForm - UserCreationForm 是 ModelForm - 会处理这个。

当我试图保存用户时，我在 django 中有 'NoneType' 对象没有属性 'groups'

I had 'NoneType' object has no attribute 'groups' in django when I tried to save an user

python

forms

django

admin

view