在空模型字段中存储Django form.cleaned_data？

from django.db import models
from django.forms import JSONField

class MyModel(models.Model):
    form_data = JSONField(null=True, blank=True)

from django.http import HttpResponseRedirect
from django.shortcuts import render
from .forms import MyForm
from .models import MyModel

def my_view(request):
    if request.method == 'POST':
        form = MyForm(request.POST)
        if form.is_valid():
            # 将表单数据存储到模型字段中
            my_model = MyModel(form_data=form.cleaned_data)
            my_model.save()
            return HttpResponseRedirect('/success/')
    else:
        form = MyForm()
    return render(request, 'my_template.html', {'form': form})

<form method="post" action="/my_view/">
    {% csrf_token %}
    {{ form }}
   <button type="submit">提交表单</button>
</form>