我是django的新手，正在尝试构建一个博客应用程序。最后一步是能够在详细的博客文章中创建评论，我试图将创建评论的表单放在与blog_post和评论相同的详细视图中，当我试图创建一个带有表单的评论时，控制台中出现错误：方法后是不允许的，我尝试了一切，但仍然不工作请帮助，我非常感谢你的帮助我的代码
视图
from django.contrib.auth.decorators import login_required
from django.core.urlresolvers import reverse
from django.http import HttpResponse
from django.views.generic import View
from django.views.generic.base import TemplateView, TemplateResponseMixin, ContextMixin
from django.views.generic.detail import DetailView
from django.views.generic.list import ListView
from django.views.generic.edit import CreateView, UpdateView, DeleteView
from django.shortcuts import render
from django.utils.decorators import method_decorator
from django.contrib.contenttypes.models import ContentType
from .models import blog_post, Category
from .forms import blog_postForm
from comments.models import Comment
from comments.forms import CommentForm
class CategoryListView(ListView):
model = Category
queryset = Category.objects.all()
template_name = "blog/category_list.html"
class CategoryDetailView(DetailView):
model = Category
def get_context_data(self, *args, **kwargs):
context = super(CategoryDetailView, self).get_context_data(*args, **kwargs)
obj = self.get_object()
blogpost_set = obj.blog_post_set.all()
default_blogpost = obj.default_category.all()
blogposts = ( blogpost_set | default_blogpost ).distinct()
context["blogposts"] = blogposts
return context
class LoginRequiredMixin(object):
@classmethod
def as_view(cls, **kwargs):
view = super(LoginRequiredMixin, cls).as_view(**kwargs)
return login_required(view)
#@method_decorator(login_required)
#def dispatch(self, request, *args, **kwargs):
# return super(LoginRequiredMixin, self).dispatch(request, *args, **kwargs)
class blog_postCreateView(LoginRequiredMixin, CreateView):
#model = blog_post
form_class = blog_postForm
template_name = "form.html"
#fields = ["title", "content"]
def get_success_url(self):
return reverse("blog_post_list")
# @method_decorator(login_required)
# def dispatch(self, request, *args, **kwargs):
# return super(MyView, self).dispatch(request, *args, **kwargs)
class blog_postListView(ListView):
model = blog_post
def get_queryset(self, *args, **kwargs):
qs = super(blog_postListView, self).get_queryset(*args, **kwargs).order_by("-timestamp")
return qs
class blog_postDetailView(DetailView):
model = blog_post
def get_context_data(self, *args, **kwargs):
context = super(blog_postDetailView, self).get_context_data(*args, **kwargs)
obj = self.get_object()
#default_blogpost = obj.default_category.all()
#blogposts = ( blogpost_set | default_blogpost ).distinct()
# content_type = ContentType.objects.get_for_model(blog_post)
# obj_id = obj.id
# comments = Comment.objects.filter(content_type=content_type, object_id= obj_id)
initial_data = {
"content_type": obj.get_content_type,
"object_id": obj.id
}
form = CommentForm(self.request.POST or None, initial=initial_data)
if form.is_valid():
c_type = form.cleaned_data.get("content_type")
content_type = ContentType.objects.get(model=c_type)
obj_id = form.cleaned_data.get('object_id')
content_data = form.cleaned_data.get("content")
new_comment, created = Comment.objects.get_or_create(
user = request.user,
content_type= content_type,
object_id = obj_id,
content = content_data
)
comments = obj.comments.order_by("-timestamp")
context['comments'] = comments
context['comment_form'] = form
return context
class AboutPageView(TemplateView):
template_name = "about.html"
class ContactPageView(TemplateView):
template_name = "contact.html"
class IndexView(ListView):
context_object_name = 'home_list'
template_name = 'blog/index.html'
queryset = blog_post.objects.all().order_by("-timestamp")
def get_context_data(self, **kwargs):
context = super(IndexView, self).get_context_data(**kwargs)
context['categories'] = Category.objects.all()
# And so on for more models
return contextblog_post_detail.html
{% extends "base.html" %}
{% load crispy_forms_tags %}
{% block content %}
<!-- Blog Post Content Column -->
<div class="col-lg-8">
<!-- Blog Post -->
<!-- Title -->
<h1>{{ object.title }}</h1>
<!-- Author -->
<p class="lead">
by <a href="#">Start Bootstrap</a>
</p>
<hr>
<!-- Date/Time -->
<p><span class="glyphicon glyphicon-time"></span> Posted on {{ object.timestamp|date }} </p>
<hr>
<!-- Preview Image -->
<!-- <img class="img-responsive" src="http://placehold.it/900x300" alt=""> -->
{% if object.image %}
<img src='{{ object.image.url }}' class='img-responsive' />
{% endif %}
<hr>
<!-- Post Content -->
<div class="content-markdown"><p class="lead">{{ object.content }}</p></div>
<hr>
<!-- Blog Comments -->
<!-- Comments Form LEAVE A COMMENT -->
<div class="well">
<h4>Leave a Comment:</h4>
<!-- <form role="form">
<div class="form-group">
<textarea class="form-control" rows="3"></textarea>
</div>
<button type="submit" class="btn btn-primary">Submit</button>
</form> -->
<form method="POST" action='.'> {% csrf_token %}
{{ comment_form }}
<input type='submit' value='Post comment' class='btn btn-default'>
</form>
<hr/>
</div>
<hr>
<!-- Posted Comments -->
<!-- Comment -->
{% for comment in comments %}
<div class="media">
<a class="pull-left" href="#">
<!-- {% if object.image %}
<img src='{{ object.image.url }}' class='img-responsive' />
{% endif %} -->
<img class="media-object" src="http://placehold.it/64x64" alt="">
</a>
<div class="media-body">
<h4 class="media-heading">{{ comment.content_object }}
<small> by {{ comment.user }} | {{ comment.timestamp|timesince }} ago </small>
</h4>
{{ comment.content }}
<!-- Nested Comment -->
<!-- <div class="media">
<a class="pull-left" href="#">
<img class="media-object" src="http://placehold.it/64x64" alt="">
</a>
<div class="media-body">
<h4 class="media-heading">Nested Start Bootstrap
<small>August 25, 2014 at 9:30 PM</small>
</h4>
Cras sit amet nibh libero, in gravida nulla. Nulla vel metus scelerisque ante sollicitudin commodo. Cras purus odio, vestibulum in vulputate at, tempus viverra turpis. Fusce condimentum nunc ac nisi vulputate fringilla. Donec lacinia congue felis in faucibus.
</div>
</div> -->
<!-- End Nested Comment -->
</div>
</div>
{% endfor %}
</div>
<!-- Blog Sidebar Widgets Column -->
<div class="col-md-4">
<!-- Blog Search Well -->
<div class="well">
<h4>Blog Search</h4>
<div class="input-group">
<input type="text" class="form-control">
<span class="input-group-btn">
<button class="btn btn-default" type="button">
<span class="glyphicon glyphicon-search"></span>
</button>
</span>
</div>
<!-- /.input-group -->
</div>
<!-- Blog Categories Well -->
<div class="well">
<h4>Blog Categories</h4>
<div class="row">
<div class="col-lg-6">
<ul class="list-unstyled">
<li><a href="#">Category Name</a>
</li>
<li><a href="#">Category Name</a>
</li>
<li><a href="#">Category Name</a>
</li>
<li><a href="#">Category Name</a>
</li>
</ul>
</div>
<!-- /.col-lg-6 -->
<div class="col-lg-6">
<ul class="list-unstyled">
<li><a href="#">Category Name</a>
</li>
<li><a href="#">Category Name</a>
</li>
<li><a href="#">Category Name</a>
</li>
<li><a href="#">Category Name</a>
</li>
</ul>
</div>
<!-- /.col-lg-6 -->
</div>
<!-- /.row -->
</div>
<!-- Side Widget Well -->
<div class="well">
<h4>Side Widget Well</h4>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Inventore, perspiciatis adipisci accusamus laudantium odit aliquam repellat tempore quos aspernatur vero.</p>
</div>
</div>
</div>
<!-- /.row -->
{% endblock content %}博客模型
from __future__ import unicode_literals
from django.conf import settings
from django.core.urlresolvers import reverse
from django.db import models
from django.db.models.signals import pre_save, post_save
from django.utils.text import slugify
# Create your models here.
from comments.models import Comment
from django.contrib.contenttypes.models import ContentType
def upload_location(instance, filename):
#filebase, extension = filename.split(".")
#return "%s/%s.%s" %(instance.id, instance.id, extension)
return "%s/%s" %(instance.id, filename)
class blog_post(models.Model):
user = models.ForeignKey(settings.AUTH_USER_MODEL, default=1)
title = models.CharField(max_length=120)
height_field = models.IntegerField(default=0)
width_field = models.IntegerField(default=0)
image = models.ImageField(upload_to=upload_location, null=True, blank=True, width_field="width_field", height_field="height_field")
slug = models.SlugField(unique=True)
content = models.TextField()
updated = models.DateTimeField(auto_now=True, auto_now_add=False)
timestamp = models.DateTimeField(auto_now=False, auto_now_add=True)
categories = models.ManyToManyField('Category', blank=True)
default = models.ForeignKey('Category', related_name='default_category', null=True, blank=True)
def __unicode__(self):
return self.title
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse("blog_post_detail", kwargs={"slug": self.slug})
@property
def comments(self):
instance = self
qs = Comment.objects.filter_by_instance(instance)
return qs
@property
def get_content_type(self):
instance = self
content_type = ContentType.objects.get_for_model(instance.__class__)
return content_type
def create_slug(instance, new_slug=None):
slug = slugify(instance.title)
if new_slug is not None:
slug = new_slug
qs = blog_post.objects.filter(slug=slug).order_by("-id")
exists = qs.exists()
if exists:
new_slug = "%s-%s" %(slug, qs.first().id)
return create_slug(instance, new_slug=new_slug)
return slug
def pre_save_post_receiver(sender, instance, *args, **kwargs):
if not instance.slug:
instance.slug = create_slug(instance)
pre_save.connect(pre_save_post_receiver, sender=blog_post)
class Category(models.Model):
title = models.CharField(max_length=120, unique=True)
slug = models.SlugField(unique=True)
description = models.TextField(null=True, blank=True)
active = models.BooleanField(default=True)
timestamp = models.DateTimeField(auto_now_add=True, auto_now=False)
def __unicode__(self):
return self.title
def get_absolute_url(self):
return reverse("category_detail", kwargs={"slug": self.slug })评论模型
from __future__ import unicode_literals
from django.conf import settings
from django.contrib.contenttypes.fields import GenericForeignKey
from django.contrib.contenttypes.models import ContentType
from django.db import models
#from blog.models import blog_post
class CommentManager(models.Manager):
def filter_by_instance(self, instance):
content_type = ContentType.objects.get_for_model(instance.__class__)
obj_id = instance.id
qs = super(CommentManager, self).filter(content_type=content_type, object_id= obj_id)
return qs
class Comment(models.Model):
user = models.ForeignKey(settings.AUTH_USER_MODEL, default=1)
#post = models.ForeignKey(blog_post)
content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
object_id = models.PositiveIntegerField()
content_object = GenericForeignKey('content_type', 'object_id')
content = models.TextField()
timestamp = models.DateTimeField(auto_now_add=True)
objects = CommentManager()
def __unicode__(self):
return str(self.user.username)
def __str__(self):
return str(self.user.username)我非常感谢你的帮助。
3条答案
按热度按时间o4hqfura1#
如果要向视图添加编辑功能，则需要使用
UpdateView而不是DetailView示例
xzlaal3s2#
我不得不使用forms. ModelForm.唯一的问题是现在，我需要登录后/创建评论成功，否则这个错误来：“AnonymousUser”对象不可迭代有人对此有解决方案吗？
视图
forms.py
blog_post_detail.html
nimxete23#
在DetailView中添加post方法，如下所示：