如何在Django中创建一个分为两部分的注册表，以便一个调用仅在电子邮件验证后填写第二部分？

from django.db import models

class UserPart1(models.Model):
    # 第一部分注册信息的字段
    email = models.EmailField(unique=True)
    # ...

class UserPart2(models.Model):
    # 第二部分注册信息的字段
    user = models.OneToOneField(UserPart1, on_delete=models.CASCADE)
    # ...

from django.shortcuts import render, redirect
from django.core.mail import send_mail
from django.contrib.auth.tokens import default_token_generator
from django.contrib.auth.models import User
from .models import UserPart1, UserPart2

def register_part1(request):
    if request.method == 'POST':
        email = request.POST['email']
        # 验证邮箱是否已存在
        if UserPart1.objects.filter(email=email).exists():
            return render(request, 'registration/part1.html', {'error': '该邮箱已被注册'})
        # 生成验证码并发送邮件
        token = default_token_generator.make_token(email)
        send_mail('验证码', f'您的验证码是：{token}', 'noreply@example.com', [email])
        # 保存第一部分注册信息
        user_part1 = UserPart1(email=email)
        user_part1.save()
        return redirect('register_part2')
    return render(request, 'registration/part1.html')

def register_part2(request):
    if request.method == 'POST':
        email = request.POST['email']
        token = request.POST['token']
        # 验证验证码是否正确
        if not default_token_generator.check_token(email, token):
            return render(request, 'registration/part2.html', {'error': '验证码错误'})
        # 获取第一部分注册信息
        user_part1 = UserPart1.objects.get(email=email)
        # 保存第二部分注册信息
        user_part2 = UserPart2(user=user_part1)
        user_part2.save()
        return redirect('registration_success')
    return render(request, 'registration/part2.html')

from django.urls import path
from . import views

urlpatterns = [
    path('register/part1/', views.register_part1, name='register_part1'),
    path('register/part2/', views.register_part2, name='register_part2'),
    # ...
]

<form method="post" action="{% url 'register_part1' %}">
  {% csrf_token %}
  <label for="email">Email:</label>
  <input type="email" name="email" required>
  <button type="submit">下一步</button>
  {% if error %}
    <p>{{ error }}</p>
  {% endif %}
</form>

<form method="post" action="{% url 'register_part2' %}">
  {% csrf_token %}
  <input type="hidden" name="email" value="{{ user_part1.email }}">
  <label for="token">验证码:</label>
  <input type="text" name="token" required>
  <!-- 第二部分注册信息的字段 -->
  <button type="submit">注册</button>
  {% if error %}
    <p>{{ error }}</p>
  {% endif %}
</form>