Question

有人可以说我错了吗？我想在成功添加后用ajax更新评论列表，但最后看到这个页面。

新评论在数据库中，但似乎我想念一些东西。提交后，它将我重定向到“task_comment_add”网址，但我需要保持在同一页面只更新对象列表（任务 - 评论）。

urls.py：

url(r'^(?P<project_code>[0-9a-f-]+)/(?P<group_task_code>[0-9a-f-]+)/(?P<task_code>[0-9a-f-]+)/task_comment_add/$',
    task_comment_add,
    name='task_comment_add'),

views.py：

def task_comment_add(request, project_code, group_task_code, task_code):
    data = dict()
    project = get_object_or_404(Project, pk=project_code, status='open')
    group_task = get_object_or_404(GroupTask, pk=group_task_code)
    task = get_object_or_404(Task, pk=task_code)
    if request.method == 'POST':
        form = CommentForm(request.POST)
        if form.is_valid():
            comment = form.save(commit=False)
            comment.author = request.user
            comment.save()
            task.comments.add(comment)
            data['form_is_valid'] = True
            data['html_task_comment'] = render_to_string('project/task_comment_list.html',
                                                         {'task': task})
        else:
            data['form_is_valid'] = False
    else:
        form = CommentForm()
    context = {'project': project, 'group_task': group_task, 'task': task, 'form': form}
    data['html_task_comment_form'] = render_to_string('project/task_comment_form.html', context, request=request)
    return JsonResponse(data)

task_list.html：

<div class="list-group custom-list-group">
   <div class="list-group-item bg-faded">
      {% include 'project/task_comment_form.html' %}
   </div>
   <div id="task-comments">
      {% include 'project/task_comment_list.html' %}
   </div>
</div>

task_comment_form.html：

<form method="post" id="task-comment-form" action="{% url 'project:task_comment_add' project_code=project.code group_task_code=group_task.code task_code=task.code %}">

</form>

task_comment_list.html：

{% for comment  in task.comments.all %}
    <div class="list-group-item flex-column align-items-start">
        <div class="d-flex w-100 justify-content-between">
            <h6 class="mb-1">{{ comment.author }}</h6>
            <small>{{ comment.created }}</small>
        </div>
        <p class="custom-p">{{ comment.text }}</p>
    </div>
{% empty %}
    <div class="list-group-item flex-column align-items-start">
        <div class="d-flex w-100 justify-content-center">
            <h6 class="mb-1 custom-h"><i class="fa fa-info-circle" aria-hidden="true"></i>&#9;{% trans 'NO COMMENTS' %}</h6>
        </div>
    </div>
{% endfor %}

JS：

$("#task-comment-form").submit(function(event) {
    event.preventDefault();
    console.log(event.preventDefault());
    var form = $(this);
    $.ajax({
        url: form.attr("action"),
        data: form.serialize(),
        type: form.attr("method"),
        dataType: 'json',
        success: function (data) {
            if (data.form_is_valid) {
                $("#task-comments").html(data.html_task_comment);
            }
            else {
                $("#task-comment-form").html(data.html_task_comment_form);
            }
        }
    });
    $("#task-comment-form")[0].reset();
    return false;
});

Answer 1

编辑回答......

Here您可以找到一个Javascript解决方案，以检查提交的表单是否为包含多种表单的html页面

使用AJAX更新对象列表

1 个答案: