python - 为什么我收到此错误 'WSGIRequest' object has no attribute 'kwargs'？

Question

我正在尝试为我的帖子创建一个评论部分，但我不明白为什么会出现此错误，这是代码，您可以查看它，我只会在 View 中共享该类。 py 我得到了错误

View .py

class AddCommentView(CreateView):
    model = Comment
    form_class = CommentForm
    template_name = 'app1/add_comment.html'
    def form_valid(self, form):
        form.instance.post_id = self.kwargs['pk']
        return super().form_valid(form)
    #fields = '__all__'
    success_url = reverse_lazy('index')

模型.py

from django.db import models
from django.contrib.auth.models import User
from django.urls import reverse
from datetime import datetime, date
from ckeditor.fields import RichTextField
# Create your models here.


class Category(models.Model):
    name = models.CharField(max_length= 255)
    
    def __str__(self):
        return self.name 
    
    def get_absolute_url(self):
        return reverse('index')

class Profile(models.Model):
    user = models.OneToOneField(User, null = True, on_delete=models.CASCADE)
    bio = models.TextField()
    profile_pic = models.ImageField(null = True, blank = True, upload_to = "images/profile/")
    website_url = models.CharField(max_length= 255, blank = True, null = True)
    facebook_url = models.CharField(max_length= 255, blank = True, null = True)
    twitter_url = models.CharField(max_length= 255, blank = True, null = True)
    instagram_url = models.CharField(max_length= 255, blank = True, null = True)
    pinterest_url = models.CharField(max_length= 255, blank = True, null = True)

    def __str__(self):
        return str(self.user)

    def get_absolute_url(self):
        return reverse('index')
        
    

class Post(models.Model):
    title = models.CharField(max_length= 255)
    header_image = models.ImageField(null = True, blank = True, upload_to = 'images/')
    author = models.ForeignKey(User, on_delete=models.CASCADE)
    body = RichTextField(blank = True, null = True)
    #body = models.TextField()
    post_date = models.DateField(auto_now_add=True)
    category = models.CharField(max_length=255, default='coding')
    snippet = models.CharField(max_length=255)
    likes = models.ManyToManyField(User, related_name = 'blog_posts')

    def total_likes(self):
        return self.likes.count()

    def __str__(self):
        return self.title + ' | ' + str(self.author)
    
    def get_absolute_url(self):
        return reverse('app1:article-detail', args=(self.id,))

class Comment(models.Model):
    post = models.ForeignKey(Post, related_name="comments", on_delete=models.CASCADE)
    name = models.CharField(max_length=255)
    body = models.TextField()
    date_added = models.DateTimeField(auto_now_add=True)

    def __str__(self):
        return '%s - %s' % (self.post.title, self.name)

模板

 
{% extends 'app1/base.html' %}
{% load static %}
{% block body_block %}


<h1>Add Blog Post</h1>
<br><br>

<div class="form-group">
<form action="" method="post">
    {% csrf_token %}
    {{form.as_p}}
    <button class= "btn btn-secondary">Add Comment</button>
</form>
</div>


{% endblock %}

如果有人能解释问题所在并提前致谢，我将不胜感激。

Answer 1

因为确实 request 没有任何名为 kwargs 的属性。

我看到您有一个名为 CommentForm 的表单，该表单正在使用 HTTP POST 方法提交。如果该表单实际上有一个名为 pk 的字段，那么您可以通过以下方式获取它的值:

form.instance.post_id = self.request.POST['pk']