如何在Django上使用modelformset_factory进行更新

from django.forms import modelformset_factory
from .models import YourModel

from django import forms
from .models import YourModel

class YourModelForm(forms.ModelForm):
    class Meta:
        model = YourModel
        fields = '__all__'

from django.shortcuts import render
from .models import YourModel
from .forms import YourModelForm

def update_model(request):
    YourModelFormSet = modelformset_factory(YourModel, form=YourModelForm, extra=0)
    if request.method == 'POST':
        formset = YourModelFormSet(request.POST)
        if formset.is_valid():
            formset.save()
    else:
        formset = YourModelFormSet()
    return render(request, 'update_model.html', {'formset': formset})

<form method="post">
    {% csrf_token %}
    {{ formset.management_form }}
    {% for form in formset %}
        {{ form }}
    {% endfor %}
    <input type="submit" value="保存">
</form>