python - django project_form 无效？

Question

我一直在尝试实现一种发布项目帖子的方法，用户可以在其中上传多张图片。多张图片上传有效，但发布帖子本身无效。

我不确定如何处理 project_form。

即使字段具有正确的值也是无效的。

我的代码是:

View .py

class CreateProjectsView(View):
    def get(self, request):
        p_photos = P_Images.objects.all()
        #project_form = ProjectsForm(initial=self.initial)
        project_form = ProjectsForm
        context = {
            'p_photos': p_photos,
            'project_form': project_form,
        }
        return render(self.request, 'projects/forms.html', context)

    def post(self, request):
        project_form = ProjectsForm(request.POST or None, request.FILES or None)
        p_formset = P_ImageForm(request.POST, request.FILES)

        # Checks if the project_form is valid before save
        if project_form.is_valid():
            instance = project_form.save(commit=False)
            instance.user = request.user
            instance.save()

        # Checks if multiple image upload is valid before save
        if p_formset.is_valid(): 
        #if project_form.is_valid() and p_formset.is_valid():   
            #instance = project_form.save(commit=False)
            #instance.user = request.user
            #instance.save()
            images = p_formset.save(commit=False)
            images.save()

            data = {
                'is_valid': True, 
                'name': images.p_file.name, 
                'url': images.p_file.url
            }

        else:
            data = {
                'is_valid': False,
            }

        return JsonResponse(data)

表单.html

<form action="{% url 'create_post:retrieve_projects' %}" method="POST" enctype="multipart/form-data">

    {% csrf_token %}  

    {% for hidden in project_form.hidden_fields %}
    {{ hidden }}
    {% endfor %}

    {% for field in project_form %}
    {{ field.errors }}
    {{ field }} <br />
    {% endfor %}

    <input type="submit" value="OK">
</form>

Answer 1

如果表单无效，您应该为用户提供更正错误并重新提交表单的方法。也许是这样的:

    if project_form.is_valid():
        instance = project_form.save(commit=False)
        instance.user = request.user
        instance.save()

    else:
        return render(request, 'project_form.html', {'form': project_form})