使用多个表单在Django中保存ManytoMany字段

from django.db import models

class User(models.Model):
    name = models.CharField(max_length=100)
    groups = models.ManyToManyField('Group')

class Group(models.Model):
    name = models.CharField(max_length=100)

from django import forms
from .models import User, Group

class UserForm(forms.ModelForm):
    groups = forms.ModelMultipleChoiceField(queryset=Group.objects.all())

    class Meta:
        model = User
        fields = ['name', 'groups']

class GroupForm(forms.ModelForm):
    class Meta:
        model = Group
        fields = ['name']

from django.shortcuts import render, redirect
from .forms import UserForm, GroupForm

def create_user(request):
    if request.method == 'POST':
        group_form = GroupForm(request.POST)
        user_form = UserForm(request.POST)

        if group_form.is_valid() and user_form.is_valid():
            group = group_form.save()
            user = user_form.save(commit=False)
            user.save()
            user.groups.set(group_form.cleaned_data['groups'])
            return redirect('success')
    else:
        group_form = GroupForm()
        user_form = UserForm()

    return render(request, 'create_user.html', {'group_form': group_form, 'user_form': user_form})

<!-- create_user.html -->
<form method="POST">
  {% csrf_token %}
  {{ group_form.as_p }}
  {{ user_form.as_p }}
  <button type="submit">Save</button>
</form>