/blog/create/blog-post 处的 AttributeError答案

【问题标题】：AttributeError at /blog/create/blog-post/blog/create/blog-post 处的 AttributeError
【发布时间】：2021-10-21 18:18:15
【问题描述】：

我正在学习 django，但这个错误让我感到恶心。我想创建一个表单来注册新的博客文章。但我得到了这个似乎没有人得到的奇怪错误。我真的是 django 的初学者。这是跟踪：

Environment:


Request Method: GET
Request URL: http://127.0.0.1:8000/blog/create/blog-post

Django Version: 3.2.6
Python Version: 3.9.6
Installed Applications:
['blog',
 'django_summernote',
 'django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']



Traceback (most recent call last):
  File "C:\My_Stuff\Blogistan\env\lib\site- 
    packages\django\core\handlers\exception.py", line 47, in inner
    response = get_response(request)
    File "C:\My_Stuff\Blogistan\env\lib\site-packages\django\core\handlers\base.py", 
    line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
    File "C:\My_Stuff\Blogistan\blog\views.py", line 19, in BlogPostForm
    form = BlogPostForm(request.POST or None)
    File "C:\My_Stuff\Blogistan\blog\views.py", line 19, in BlogPostForm
    form = BlogPostForm(request.POST or None)

Exception Type: AttributeError at /blog/create/blog-post
Exception Value: 'NoneType' object has no attribute 'POST'

这是我的控制台：

Internal Server Error: /blog/create/blog-post
Traceback (most recent call last):
  File "C:\My_Stuff\Blogistan\env\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
    response = get_response(request)
  File "C:\My_Stuff\Blogistan\env\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\My_Stuff\Blogistan\blog\views.py", line 19, in BlogPostForm
    form = BlogPostForm(request.POST)
  File "C:\My_Stuff\Blogistan\blog\views.py", line 19, in BlogPostForm
    form = BlogPostForm(request.POST)
AttributeError: 'QueryDict' object has no attribute 'POST'

我的views.py：

def BlogPostForm(request):
    form = BlogPostForm(request.POST)
    return render(request, 'create_post.html', {
        'form': form})

我正在尝试整合django-summernote`` My forms.py```：

from django.forms import ModelForm
from blog.models import BlogPost
from django_summernote.widgets import SummernoteWidget

class BlogPostForm(ModelForm):
    class Meta:
        model = BlogPost
        fields = '__all__'
        widgets = {
            'content_html': SummernoteWidget(),
        }

我的models.py：

class BlogPost(models.Model):
    title = models.CharField(max_length=360)
    urlpattern = models.CharField(max_length=360)
    content_html = TextField(max_length=12000)
    date_added = models.DateField(auto_now_add=True)
    author = models.ForeignKey(Author, on_delete=models.SET_NULL, null=True)

    def __str__(self):
        return self.title

我的模板：

{% extends 'layout.html' %}

{% block body %}
    <form class="post-form" method="post">
        {% csrf_token %}
        {{form.as_p}}
        <button type="submit" class="btn btn-default">Submit</button>  
    </form>
{% endblock body %}

有人可以帮我解决这个问题吗？非常感谢您的帮助。

【问题讨论】：

标签： python django django-models django-forms django-templates

【解决方案1】：

感谢您的帮助。这是我在 Stackoverflow 上的第一个问题。没想到这么快的回答。我很不擅长给变量名。我解决这个问题的方法是使用django.views.generic.edit.CreateView，这是我现在的看法。

class BlogPostCreateView(CreateView):
   form_class = BlogPostForm
   model = BlogPost
   template_name = 'create_post.html'
   success_url='/'

这是表格。

class BlogPostForm(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        kwargs.setdefault('label_suffix', '')
        super(BlogPostForm, self).__init__(*args, **kwargs)
    content_html = forms.CharField(widget=SummernoteWidget)
    class Meta:
        model = BlogPost
        fields = '__all__'
        label_suffix = ''
        labels = {
            'content_html': '',
            'title': 'Title',
            'urlpattern': 'Slug'
        }
        widgets = {
            'title': forms.TextInput(attrs={
                'class': 'form-control',
            }),
            'urlpattern': forms.TextInput(attrs={
                'class': 'form-control',
            }),
        }

这很好用，而且造型比以往任何时候都容易

【讨论】：

【解决方案2】：

您需要重命名视图函数BlogPostForm，因为它会覆盖导入的同名表单。

发生错误是因为使用参数request.POST 递归调用视图函数，这是一个QueryDict，因此错误：

AttributeError: 'QueryDict' object has no attribute 'POST'

【讨论】：