如何让用户在用户仪表板中编辑自定义用户模型详细信息，并在django的模型中更新它？

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

class CustomUser(AbstractUser):
    # 添加自定义详细信息字段
    bio = models.TextField(max_length=500, blank=True)

# views.py
from django.shortcuts import render, redirect
from django.contrib.auth.decorators import login_required

@login_required
def dashboard(request):
    if request.method == 'POST':
        # 处理用户提交的表单数据
        bio = request.POST.get('bio')
        request.user.bio = bio
        request.user.save()
        return redirect('/dashboard')  # 重定向到仪表板页面

    return render(request, 'dashboard.html')

# dashboard.html
<form method="post" action="{% url 'dashboard' %}">
    {% csrf_token %}
    <label for="bio">自我介绍：</label>
    <textarea id="bio" name="bio">{{ request.user.bio }}</textarea>
    <button type="submit">保存</button>
</form>