[英]Django submit button not working on Ajax request
我正在建立一個網站,用戶可以創建帖子並對其發表評論,但是,在單擊 post_detail.html 模板中的提交按鈕提交評論后,沒有任何反應,我看不到錯誤。 我正在使用 jQuery 提交表單
這是我的 post_detail 視圖:
@login_required
def post_detail(request, id):
data = dict()
post = get_object_or_404(Post, id=id)
if request.method == 'POST':
form = CommentForm(request.POST)
if form.is_valid():
comment = form.save(False)
comment.post = post
comment.name = request.user
comment.save()
comments = post.comments.all()
data['form_is_valid'] = True
data['comments'] = render_to_string('home/posts/post_detail.html', { 'comments':comments }, request=request)
else:
data['form_is_valid'] = False
else:
form = CommentForm
comments = post.comments.all()
context = {
'form': form,
'comments': comments,
'post': post
}
data['html_data'] = render_to_string('home/posts/post_detail.html', context,request=request)
return JsonResponse(data)
這是我的 post_detail.html 模板:
{% load crispy_forms_tags %}
{% load static %}
<script src="{% static 'js/comment.js' %}"></script>
<div class="modal-header-sm">
<button type="button" class="close mx-2" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="card mt-3 rounded-0 mb-3" style="max-width: 100rem !important;">
<div class="card-body text-dark">
<div class="d-flex">
<img class="img-create-post rounded-circle mr-2" style="width: 50px;height: 50px;" src="https://mdbootstrap.com/img/Photos/Avatars/avatar-5.jpg"
alt="Profile image">
<span class="align-text-top"><a class="mr-2 text-dark font-weight-bolder" href="#">{{ post.author.first_name }} {{ post.author.last_name }} </a><br><p class="font-weight-light text-muted">{{ post.title }}</p></span>
<div class="float-right text-right ml-auto">
<p class="text-muted small" style="font-size: 0.7rem;">{{ post.date_posted|date:"F d, Y" }}</p>
</div>
</div>
<p class="card-text">{{ post.content }}</p>
</div>
<div class="card-footer" style="height: 5rem;">
<a class="mx-1 small" data-href='{{ post.get_api_like_url }}' data-likes='{{ post.likes.count }}' href='{{ post.get_like_url }}'><i class="fas fa-thumbs-up"></i> Like</a>
<hr class="my-1">
<p class="text-muted small">
{% if post.author == request.user %}
<button class="btn btn-sm text-muted show-form-delete ml-auto" data-url="{% url 'home:post-delete' post.id %}" style="font-size: small;" style="height: 0rem;">Remove</button>
{% endif %}
<small class="float-sm-right">
{{ post.likes.count }} Likes, {{ post.comments.count }} Comments
</small>
</p>
</div>
<div class="card-body">
<div class="row">
<img class="img-create-post rounded-circle mr-2" style="width: 40px;height: 40px;" src="{{ request.user.image }}" alt="Profile image">
<form method="POST" data-url="{% url 'home:post-detail' post.id %}" class="post-comment-form">
{% csrf_token %}
<div class="row ml-1">
{{ form | crispy }}
<button class="btn btn-sm ml-1 small btn-rounded btn-primary" style="height: 2.3rem;" type="submit">Add</button>
</div>
</form>
</div>
<hr>
</div>
<div id="post-linked-comments">
<div>
{% include 'home/posts/post_comment.html' %}
</div>
</div>
</div>
post_comment.html 模板供您參考,但很可能不是問題:
<ul class="list-group list-group-flush">
{% for comment in comments %}
<li class="list-group-item">
<div class="d-flex">
<img class="img-create-post rounded-circle mr-1" style="width: 20px;height: 20px;" src="{{ comment.name.image }}"
alt="Profile image">
<span class="align-text-top font-weight-bolder">{{ comment.name.first_name }}
<p class="text-muted small mx-2" style="font-size: 0.7rem;">{{ comment.created_on|date:"F d, Y at: f A" }}</p><br>
<p class="font-weight-light">{{ comment.body }}</p></span>
</div>
</li>
{% empty %}
<li class="list-group-item">
<div class="d-flex">
<p class="font-weight-lighter text-muted">No comments to show</p>
</div>
</li>
{% endfor %}
</ul>
最后是我在 comment.js 中的 javascript 代碼:
$(document).ready(function(){
var ShowForm = function(e){
e.stopImmediatePropagation();
var btn = $(this);
$.ajax({
url: btn.attr("data-url"),
type: 'get',
dataType:'json',
beforeSend: function(){
$('#modal-post-detail').modal('show');
},
success: function(data){
$('#modal-post-detail .modal-content').html(data.html_data);
}
});
};
var SaveForm = function(e){
e.stopImmediatePropagation();
var form = $(this);
$.ajax({
url: form.attr('data-url'),
data: form.serialize(),
type: form.attr('method'),
dataType: 'json',
success: function(data){
if(data.form_is_valid){
$('#post-linked-comments div').html(data.comments);
alert('Comment added')
} else {
$('#modal-post-detail .modal-content').html(data.html_data)
}
}
})
return false;
}
//adding a comment
$('.comment-post-btn').click(ShowForm);
$('.post-detail-clickable-details-view').click(ShowForm);
$('#modal-post-detail').on("submit",".post-comment-form",SaveForm)
});
獲取 Javascript 文件沒有問題,因為 post_detail 模式彈出很好,但是在單擊添加按鈕后沒有任何反應。
提前感謝所有幫助。
編輯:按鈕應該添加到表單中,但現在點擊“添加”按鈕后拋出 NoReverseMatchException :
新表格:
<form method="POST" data-url="{% url 'home:post-detail' post.id %}" class="post-comment-form">
{% csrf_token %}
<div class="row ml-1">
{{ form | crispy }}
<button class="btn btn-sm ml-1 small btn-rounded btn-primary" style="height: 2.3rem;" type="submit">Add</button>
</div>
</form>
網址.py:
path('post/<int:id>/', views.post_detail, name='post-detail'),
錯誤:
django.urls.exceptions.NoReverseMatch: Reverse for 'post-detail' with arguments '('',)' not found. 1 pattern(s) tried: ['home/post/(?P<id>[0-9]+)/$']
已解決:我設法自己解決了這個問題。 這是我的看法。 我將評論發送到錯誤的 html 模板。 您可以在下面看到模板的更正視圖。
@login_required
def post_detail(request, id):
data = dict()
post = get_object_or_404(Post, id=id)
if request.method == 'POST':
form = CommentForm(request.POST)
if form.is_valid():
comment = form.save(False)
comment.post = post
comment.name = request.user
comment.save()
comments = post.comments.all()
data['form_is_valid'] = True
#data['comments'] = render_to_string('home/posts/post_detail.html', { 'comments':comments }, request=request)
#corrected code below
data['comments'] = render_to_string('home/posts/post_comment.html', { 'comments':comments }, request=request) else:
data['form_is_valid'] = False
else:
form = CommentForm
comments = post.comments.all()
context = {
'form': form,
'comments': comments,
'post': post
}
data['html_data'] = render_to_string('home/posts/post_detail.html', context,request=request)
return JsonResponse(data)
我相信什么都沒有發生,因為提交按鈕沒有在任何表單標簽中定義。
從post_detail.html
的代碼post_detail.html
, button
標簽在form
標簽之外。
<div class="row">
<img class="img-create-post rounded-circle mr-2" style="width: 40px;height: 40px;" src="{{ request.user.image }}" alt="Profile image">
<form method="POST" data-url="{% url 'home:post-detail' post.id %}" class="post-comment-form">
{% csrf_token %}
<div class="moda-body">
{{ form | crispy }}
</div>
</form>
<button class="btn btn-sm ml-1 small btn-rounded btn-primary" style="height: 2.3rem;" type="submit">Add</button>
</div>
按鈕標簽應該放在表單的結束標簽之前。
<div class="row">
<img class="img-create-post rounded-circle mr-2" style="width: 40px;height: 40px;" src="{{ request.user.image }}" alt="Profile image">
<form method="POST" data-url="{% url 'home:post-detail' post.id %}" class="post-comment-form">
{% csrf_token %}
<div class="moda-body">
{{ form | crispy }}
</div>
<button class="btn btn-sm ml-1 small btn-rounded btn-primary" style="height: 2.3rem;" type="submit">Add</button>
</form>
</div>
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