Django 2使评论文件错误

Question

最近我决定在我的django应用程序中向我的模板添加一个注释块，但当我将其添加到我的应用程序时，我遇到了这个错误：

add_comment_to_post() got an unexpected keyword argument 'item_id'

我的模板.html:

{% block content %}
<form action="#" method="post" novalidate="novalidate">
{% csrf_token %}
{{ form.as_p }}
<div class="row">
<div class="col-md-4">
<p><label>Name*</label><input type="text" name="your-name" value=""
        size="60" class=""
        aria-required="true"
        aria-invalid="false"></p>
</div>
<div class="col-md-4">
<p><label>Email*</label><input type="text" name="your-email"
         value=""
         size="60" class=""
         aria-required="true"
         aria-invalid="false"></p>
</div>
<div class="col-md-4">
<p><label>Website</label><input type="text" name="your-website"
          value=""
          size="60" class=""
          aria-required="true"
          aria-invalid="false"></p>
</div>
<div class="col-md-12">
<p><label>Message</label><textarea name="your-message" cols="60"
             rows="3" class=""
             aria-invalid="false"></textarea>
</p>
</div>
</div>
<div class="dividewhite2"></div>
<p>
<button type="button" href="{% url 'add_comment_to_post' pk=item.pk %}"
class="btn btn-lg btn-darker">Post Comment
</button>
</p>
</form>
{% endblock %}

我的模型.py:

from django.db import models
from datetime import date
from django.utils import timezone

# Create your models here.
class Blogs(models.Model):
main_image = models.ImageField(upload_to='Blogs/', help_text='This Image Is Gonna To Be Show At Blogs Page.',
blank=False, default='')
class Comment(models.Model):
post = models.ForeignKey('Blog.Blogs', on_delete=models.CASCADE, related_name='comments')
author = models.CharField(max_length=200)
text = models.TextField()
created_date = models.DateTimeField(default=timezone.now)
approved_comment = models.BooleanField(default=False)
def approve(self):
self.approved_comment = True
self.save()
def __str__(self):
return self.text

我的表格.py:

from django.forms import ModelForm
from .models import Blogs, Comment

class CommentForm(ModelForm):
class Meta:
model = Comment
fields = ('author', 'text',)
my views.py :
from django.shortcuts import render, get_object_or_404, redirect
from Blog.forms import CommentForm
from .models import Blogs, Comment
def item(request, items_id):
items = get_object_or_404(Blogs, pk=items_id)
return render(request, 'Blog/Items.html', {'item': items, 'comments': Comment})

def add_comment_to_post(request, pk):
post = get_object_or_404(Blogs, pk=pk)
if request.method == "POST":
form = CommentForm(request.POST)
if form.is_valid():
comment = form.save(commit=False)
comment.post = post
comment.save()
return redirect('post_detail', pk=post.pk)
else:
form = CommentForm()
return render(request, 'blog/Items.html', {'form': form})

和我的网址.py:

from django.urls import path
from Blog import views
from Blog import models

urlpatterns = [
path('<int:item_id>/', views.add_comment_to_post, name='add_comment_to_post'),
path('<int:items_id>/', views.item, name='Itemz'),
]

我检查了我的代码很多次，但我不明白我的问题是什么。有人知道我如何在应用程序中添加评论吗？或者我的问题是什么？此外，我很抱歉在我的问题中写错了字

Answer 1

更改此

def add_comment_to_post(request, pk):

收件人：

def add_comment_to_post(request, item_id):

然后在您将pk写入item_id 的函数中的所有位置进行更改

views.py

def add_comment_to_post(request, item_id):
post = get_object_or_404(Blogs, pk=item_id)
if request.method == "POST":
form = CommentForm(request.POST)
if form.is_valid():
comment = form.save(commit=False)
comment.post = post
comment.save()
return redirect('post_detail', pk=post.pk)
else:
form = CommentForm()
return render(request, 'blog/Items.html', {'form': form, 'item': post})

并且在您的模板中：

<button type="button" href="{% url 'add_comment_to_post' item.pk %}"
class="btn btn-lg btn-darker">Post Comment
</button>

Answer 2

也许要仔细检查一下你的url模式？尝试：

urlpatterns = [
path('<int:pk>/', views.add_comment_to_post, name='add_comment_to_post'),

视图方法中的变量名需要与url中的变量名称匹配。因此，您需要两个都是pk，或者两个都为item_id

Answer 3

问题的发生是因为在urls.py中有两个主题被传递给一个视图。将视图更改为：

urlpatterns = [
path('<int:pk>/', views.item, name='Itemz'),
]

然后将html部分更改为：

{% if not user.is_authenticated %}
<p><a href="{% url 'login' %}" class="btn btn-gr btn-xs">Login To Send
A Command.</a></p>
{% endif %}
<div class="dividewhite2"></div>
{% if user.is_authenticated %}
<form method="post" novalidate="novalidate">
{% csrf_token %}
{{ form.as_p }}
<div class="dividewhite2"></div>
<p>
<button href="{% url 'Itemz' item.id %}" type="submit"
class="btn btn-lg btn-darker">Post Comment
</button>
</p>
</form>
{% endif %}

现在Django项目将正常运行。