如何设置 post_id 以解决错误：'django.db.utils.IntegrityError：NOT NULL 约束失败：posts_comment.post_id'？

Question

好吧，我正在使用 django，我正在尝试使用 ajax 添加评论。 当我单击未执行任何操作但在终端中的评论提交按钮时，它向我显示“django.db.utils.IntegrityError：NOT NULL 约束失败：posts_comment.post_id”错误。 我已经仔细检查了我的models.py，但仍然不知道如何解决它。

模型.py

class Comment(MPTTModel):
    author = models.ForeignKey(User, related_name='author',
                               on_delete=models.CASCADE, default=None, blank=True)
    parent = TreeForeignKey('self', on_delete=models.CASCADE,
                            null=True, blank=True, related_name='children')
    post = models.ForeignKey(Post ,related_name='comments', on_delete=models.CASCADE)
    body = models.TextField()
    create_date = models.DateTimeField(auto_now_add=True)
    status = models.BooleanField(default=True)

查看.py

def single_post(request ,*args, **kwargs):
    slug=kwargs.get('slug')
    print(slug,'slug')
    pk=kwargs.get('pk')
    print(pk,'pk')
    post = get_object_or_404(Post,pk=pk,slug=slug)
    allcomments = post.comments.filter(status=True)
    comment_form = CommentForm()
    return render(
                request,
                 'posts/post_test.html',
                    { 'post': post,
                      'comment_form': comment_form,
                      'allcomments': allcomments,
                    }
                 )

def addcomment(request):
    if request.method == 'POST':
        comment_form = CommentForm(request.POST)
        print(comment_form)
        if comment_form.is_valid():
            user_comment = comment_form.save(commit=False)
            result = comment_form.cleaned_data.get('body')
            user = request.user.username
            user_comment.author = request.user
            user_comment.save()
            return JsonResponse({'result2': result, 'user': user})

网址.py

urlpatterns = [
    
    path('test/<int:pk>/<str:slug>/',views.single_post,name ='post_detail'),
    path('commented/',views.addcomment,name='addcomment'),

]

如果需要更多信息而不是在评论会话中告诉我。 我会用这些信息更新我的问题。 谢谢 ！

Answer 1

好吧，我已将我的 url 表单path('commented/',views.addcomment,name='addcomment'),为path('commented/<int:pk>/<str:slug>/',views.addcomment,name='addcomment'),

比我还更新了添加评论功能

查看.py

 def addcomment(request):

    if request.method == 'POST':
        comment_form = CommentForm(request.POST)
        print(comment_form)
        if comment_form.is_valid():
            user_comment = comment_form.save(commit=False)
            result = comment_form.cleaned_data.get('body')
            user = request.user.username
            user_comment.author = request.user
            user_comment.save()
            return JsonResponse({'result2': result, 'user': user})

到：views.py

def addcomment(request,*args, **kwargs):
    slug=kwargs.get('slug')
    print(slug,'slug')
    pk=kwargs.get('pk')
    print(pk,'pk')
    print(request,'request')
    post = get_object_or_404(Post,pk=pk,slug=slug)
    if request.method == 'POST':
        comment_form = CommentForm(request.POST)
        print(comment_form,'postting')
        if comment_form.is_valid():
            user_comment = comment_form.save(commit=False)
            result = comment_form.cleaned_data.get('body')
            user = request.user.username
            user_comment.author = request.user
            user_comment.post = post
            user_comment.save()
            return JsonResponse({'result2': result, 'user': user})

比它完美地为我工作。