Question

我正在制作示例代码以使用表格和模型表格集。 create_function运行良好。但是update_function有问题。当它调用该函数时会发生错误MultiValueDictKeyError。我不知道该如何解决。请帮忙。

def update(request, portfolio_id):
    template_name = 'portfolio_update_form.html'
    pofol = Portfolio.objects.get(id=portfolio_id)
    if request.method == 'GET':
        form = PortfolioForm(instance=pofol)
        formset = PortfolioImageModelFormSet(

    queryset=PortfolioImage.objects.filter(portfolio__id=portfolio_id), 
        prefix='image'
    )
    elif request.method == 'POST':
        form = PortfolioForm(request.POST, instance=pofol)
        formset = PortfolioImageModelFormSet(request.POST, request.FILES, prefix='image')
        if form.is_valid() and formset.is_valid():
            portfolio = form.save()
            for imageForm in formset:
                pofolImage = imageForm.save(commit=False)
                pofolImage.portfolio = portfolio
                pofolImage.save()
            return redirect('detail', portfolio_id)
    return render(request, template_name, {
        'form' : form, 
        'formset' : formset
    })

forms.py

PortfolioImageModelFormSet = modelformset_factory(
PortfolioImage,
fields=('image','caption',),
widgets={'caption' : forms.TextInput(attrs={'class' : ''})},
labels={'caption': ''},
extra=1
)

Answer 1

尝试类似这样的方法。您将必须创建Portfolio_update_form.html并定义您的创建视图your_create_view（请求，表单，模板）

def update(request, portfolio_id):
    pofol = get_object_or_404(Portfolio, id=portfolio_id)
    if request.method == 'POST':
        form = PortfolioForm(request.POST, instance=pofol)
    else:
        form = PortfolioForm(instance=pofol)
    return your_create_view(request, form, 'portfolio_update_form.html')

如何在Django上使用modelformset更新数据

1 个答案: