在Django中验证表单后，如何更新模型的一个属性？

from django.db import models

class MyModel(models.Model):
    property_name = models.CharField(max_length=100)

from django import forms

class MyForm(forms.Form):
    property_name = forms.CharField(max_length=100)

from django.shortcuts import render, redirect
from .forms import MyForm
from .models import MyModel

def my_view(request):
    if request.method == 'POST':
        form = MyForm(request.POST)
        if form.is_valid():
            property_value = form.cleaned_data['property_name']
            # 根据需要进行数据处理或其他操作
            # 获取要更新的模型对象
            my_model = MyModel.objects.get(pk=1)
            # 更新模型属性
            my_model.property_name = property_value
            my_model.save()
            return redirect('success')  # 重定向到成功页面
    else:
        form = MyForm()
    return render(request, 'my_template.html', {'form': form})

<form method="post">
  {% csrf_token %}
  {{ form.as_p }}
  <button type="submit">提交</button>
</form>