Question

''我想向HTML中的“发布”按钮添加功能。我已经在我的Post（模型）下创建了一个方法，并使用url对该按钮进行了查看。我不知道为什么我的按钮功能不起作用。

我的帖子模型

PUBLIC

我的Views.py

class Post(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    title = models.CharField(max_length=100)
    description = models.TextField()
    created_on = models.DateTimeField(default=timezone.now)
    published = models.BooleanField(default=False)

    def publish(self):
        self.published=True
        self.save()

    def __str__(self):
        return self.title

我的urls.py

@login_required
def publish_button(request,pk):
   post = get_object_or_404(Post,pk)
   post.publish()
   return redirect('blog_detail',pk=post.pk)

我的html

urlpatterns = [
    path('comment/<int:pk>/', comment_post, name='comment_form'),
    path('publish/',PublicList.as_view(),name='publish'),
    path('publish/<int:pk>/',publish_button,name='p_button'),
    path('', index, name='indexpage'),
 ]

TraceBack：内部文件“ C：\ Users \ AngryBuLLz \ AppData \ Local \ conda \ conda \ envs \ madeenv \ lib \ site-packages \ django \ core \ handlers \ exception.py” 34. response = get_response（request）

 {% extends 'base.html' %}
 {% block content %}
 <div class="container">
  <h1>Blog Details:</h1>
  <hr>
 <div class="jumbotron">
 <h3 align = 'center'>{{ detail.title }}</h3>
 <hr>
  <div class="mb-5">
    <h4>{{ detail.description }}</h4>
  </div>
 <p>Posted By: {{ detail.user }}<span class="ml-5">{{ detail.created_on  }} </span><br>                                      
</div>


  {{ detail.pk }}
    <a href="{% url 'p_button' pk=detail.pk %}">Publish</a>


<p></p>
<h6>Wanna add comment? <span class="ml-3">
  <a href="{% url 'comment_form' pk=detail.pk %}">
    <input class="btn btn-dark" type="button" name="" value="Comment">
  </a></span>
</h6>
<hr>
<h4>Comments:-</h4>
<hr>
{% for comment in detail.comments.all %}
<h5>{{comment.text}}</h5>
<p>by: @{{comment.author}}<span class='ml-5'>{{comment.commented_on}}   </span></p>
<hr>
{% endfor %}
</div>
{% endblock %}

126。响应= self.process_exception_by_middleware（e，request）

File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\core\handlers\base.py" in _get_response

124。响应= wraped_callback（请求，* callback_args，** callback_kwargs）

File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\core\handlers\base.py" in _get_response

21。返回view_func（request，* args，** kwargs）

File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\contrib\auth\decorators.py" in _wrapped_view

71。发布= get_object_or_404（Post，pk）

File "C:\Users\AngryBuLLz\Desktop\Django\prac_18\firstapp\views.py" in publish_button

93。返回queryset.get（* args，** kwargs）

File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\shortcuts.py" in get_object_or_404

390。 clone = self.filter（* args，** kwargs）

File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\db\models\query.py" in get

844。返回self._filter_or_exclude（False，* args，** kwargs）

File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\db\models\query.py" in filter

862。 clone.query.add_q（Q（* args，** kwargs））

File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\db\models\query.py" in _filter_or_exclude

1263。子句，_ = self._add_q（q_object，self.used_aliases）

File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\db\models\sql\query.py" in add_q

1287。 split_subq = split_subq，

File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\db\models\sql\query.py" in _add_q

1161。 arg，值= filter_expr

File "C:\Users\AngryBuLLz\AppData\Local\conda\conda\envs\madeenv\lib\site-packages\django\db\models\sql\query.py" in build_filter

Answer 1

get_object_or_404接受一个过滤器表达式，就像您在调用Products.objects.get（）`一样。所以应该是：

post = get_object_or_404(Post, pk=pk)

如何为我的Boolfield建立按钮功能

1 个答案: