如何在与AbstractUser继承的模型一对一关系的模型中保存表单域中的数据

from django.contrib.auth.models import AbstractUser
from django.db import models

class CustomUser(AbstractUser):
    # 自定义字段
    custom_field = models.CharField(max_length=100)

class UserProfile(models.Model):
    user = models.OneToOneField(CustomUser, on_delete=models.CASCADE)
    # 其他字段
    # ...

from django.shortcuts import render
from .forms import UserProfileForm

def save_form_data(request):
    if request.method == 'POST':
        form = UserProfileForm(request.POST)
        if form.is_valid():
            # 获取表单数据
            custom_field_data = form.cleaned_data['custom_field']

            # 创建或获取与用户关联的UserProfile对象
            user_profile, created = UserProfile.objects.get_or_create(user=request.user)

            # 更新UserProfile的字段
            user_profile.custom_field = custom_field_data
            user_profile.save()

            # 其他处理逻辑...

            return render(request, 'success.html')
    else:
        form = UserProfileForm()

    return render(request, 'form.html', {'form': form})

<form method="post" action="{% url 'save_form_data' %}">
  {% csrf_token %}
  {{ form.as_p }}
  <button type="submit">保存</button>
</form>