在 views.py 中提交的表单在使用 Django 分页器时无法正常工作后重定向到同一页面

Question

我想在提交从 views.py 获取视图的表单后重定向到同一页面。问题是分页器。提交 Django 表单页面后重新加载到第 1 页。我希望浏览器在提交表单后保持在同一页面上。我得到的错误：django.urls.exceptions.NoReverseMatch：'http' 不是已注册的命名空间。将不胜感激！

js中的代码调用路径：

let path = window.location.href

正在获取 api:

            subedit[i].addEventListener('click', () => {
            fetch(`/edit/${content[i].id}`,
            {
                method: 'POST',
                headers: {'X-CSRFToken': csrftoken},
                mode: 'same-origin',
                body: JSON.stringify({
                post: textarea[i].value,
                page: path           
                })}).then(() => {
                    editdiv[i].style.display = 'none';
                    post[i].style.display = 'block';
                })})

views.py:

def edit(request, post_id):
    data = json.loads(request.body)
    content = data.get("post", "")
    post=Post.objects.get(id=post_id)
    page = data.get("page", "")
    if request.method == "POST":
        if post.user == request.user:
            post.post=content
            post.save()
            return HttpResponseRedirect(reverse(str(page)))

Answer 1

reverse(…) ^[Django-doc] looks for a view with the given name, it does not take a URL as input. You can use this directly in the HttpResponseRedirect ^[Django-doc], 所以:

def edit(request, post_id):
    data = json.loads(request.body)
    content = data.get("post", "")
    post=Post.objects.get(id=post_id)
    page = data.get("page", "")
    if request.method == 'POST':
        if post.user == request.user:
            post.post=content
            post.save()
            return HttpResponseRedirect(<strong>page</strong>)

对于 GET 请求，您还应该 return HttpResponses，以防 post.user 与 request.user 不同。

Note: It is often better to use get_object_or_404(…) ^[Django-doc], then to use .get(…) ^[Django-doc] directly. In case the object does not exists, for example because the user altered the URL themselves, the get_object_or_404(…) will result in returning a HTTP 404 Not Found response, whereas using .get(…) will result in a HTTP 500 Server Error.

Note: You can limit views to a view to authenticated users with the @login_required decorator ^[Django-doc].

Answer 2

我能够使用会话让它工作：

<a id="page" class="page-link">{{ num }}</a>

let page=document.querySelector("#page").innerHTML
            fetch(`/edit/${content[i].id}`,
            {
                method: 'POST',
                headers: {'X-CSRFToken': csrftoken},
                mode: 'same-origin',
                body: JSON.stringify({
                post: textarea[i].value,
                page: page             
                })}).then(() => {
                    editdiv[i].style.display = 'none';
                    post[i].style.display = 'block';
                })})

def edit(request, post_id):
    data = json.loads(request.body)
    content = data.get("post", "")
    post=Post.objects.get(id=post_id)
    page = data.get("page", "")
    request.session['page'] = page
    if request.method == "POST":
        if post.user == request.user:
            post.post=content
            post.save()
            return HttpResponse(page)

def index(request):
    posts = Post.objects.all().order_by('-date')
    paginator = Paginator(posts,10)
    page_number = request.GET.get('page')
    if request.session.has_key('page'):
        page_number = request.session['page']
        del request.session['page']

在 views.py 中提交的表单在使用 Django 分页器时无法正常工作后重定向到同一页面

Redirect to same page after form submitted in views.py not working while using Django paginator

javascript

python

django

fetch-api