如何获取form.save()之后的实体

<form method="post" action="/save_entity">
  {% csrf_token %}
  <!-- 表单字段 -->
  <input type="text" name="name" placeholder="Name">
  <input type="email" name="email" placeholder="Email">
  <button type="submit">Save</button>
</form>

from django.shortcuts import render, redirect
from .forms import MyForm  # 导入自定义表单类

def save_entity(request):
    if request.method == 'POST':
        form = MyForm(request.POST)
        if form.is_valid():
            entity = form.save()  # 保存表单数据并返回实体对象
            return redirect('/success')  # 重定向到成功页面
    else:
        form = MyForm()
    
    return render(request, 'my_template.html', {'form': form})

from django import forms
from .models import MyEntity  # 导入实体模型类

class MyForm(forms.ModelForm):
    class Meta:
        model = MyEntity  # 设置表单关联的模型
        fields = ['name', 'email']  # 设置表单字段