RemovedInDjango18警告：不建议使用“fields”属性或“exclude”属性的ModelForm已被弃用 [英] RemovedInDjango18Warning: Creating a ModelForm without either the 'fields' attribute or the 'exclude' attribute is deprecated
问题描述
/ home /（我的名字）/django_test/article/forms.py:4：RemovedInDjango18警告：创建一个没有fields属性或exclude属性的ModelForm已被弃用 - 表单ArticleForm需要更新
class ArticleForm（forms.ModelForm）：
此外，我还得到访问我的实际本地站点时出现以下错误：
/ article / create /
的ValueError article.views.create没有返回HttpResponse对象。它返回无。
这是我的forms.py文件：
from django import forms
from models import Article
class ArticleForm（forms.ModelForm）：
class Meta：
model = article
这里是我的views.py文件：
from django.shortcuts import render_to_response
from article.models import文章
from django.http import HttpResponse
from从django.http中导入ArticleForm
import httpResponseRedirect
from django.core.context_processors import csrf
#import pdb; pdb.set_trace（）
＃在这里创建您的观点。
def article（request）：
language ='en-us'
session_language ='en-us'
如果'lang'在请求中.COOKIES：
language = request.COOKIES ['lang']
如果request.session中的lang：
session_language = request.session ['lang']
return render_to_response（'articles.html'，
{'articles'：
Article.objects.all（），'language'：language，
'session_language'：session_language}）
def article（request，article_id = 1）：
return render_to_response（'article.html'，{'article'：
Article.objects.get（id = article_id）} ）
def language（request，language ='en-us'）：
response = HttpResponse（将语言设置为％s％
语言）
response.set_cookie（'lang'，language）
response.session ['lang'] = language
返回响应
def create（request）：
如果request.POST：
form = ArticleForm（request.POST）
如果form.is_valid（）：
form.save（）
返回HttpResponseRedirect（'/ articles / all'）
else：
form = ArticleForm（）
args = {}
args.update（csrf（request））
args ['form'] = form
return render_to_response（'create_article.html'，args）
我不知道如何解决这个问题。我查看了Django文档，但是找不到我的问题的解决方案，所以任何帮助将不胜感激。
您的表单，这是一个警告，而不是错误，告诉您在django 1.8中，您将需要将您的表单更改为
从django导入表单
从模型导入文章
类ArticleForm（forms.ModelForm）：
类Meta：
模型=文章
fields ='__all__'＃或您要包含在表单中的字段列表
或添加一个排除以列出字段以排除
哪些不需要，直到1.8
https：/ /docs.djangoproject.com/en/1.8/topics/forms/modelforms/#selecting-the-fields-to-use
至于错误与你的意见，你的r如果语句：如果request.POST：，那么如果收到获取请求，则没有返回任何内容
def create（request）：
if request.POST：
form = ArticleForm（request。 POST）
如果form.is_valid（）：
form.save（）
返回HttpResponseRedirect（'/ articles / all'）
其他：
form = ArticleForm（）
args = {}
args.update（csrf（request））
args ['form'] = form
返回render_to_response（'create_article.html'，args）
else 块，以便如果语句适用于正确的。
I am doing a Django project and when I tried to access 127.0.0.1:8000/articles/create, I got the following error in my Ubuntu terminal:
/home/(my name)/django_test/article/forms.py:4: RemovedInDjango18Warning: Creating a ModelForm without either the 'fields' attribute or the 'exclude' attribute is deprecated - form ArticleForm needs updating
class ArticleForm(forms.ModelForm):
In addition, I also got the following error when visiting my actual localhost site:
ValueError at /articles/create/
The view article.views.create didn't return an HttpResponse object. It returned None instead.
Here is my forms.py file:
from django import forms
from models import Article
class ArticleForm(forms.ModelForm):
class Meta:
model = Article
And here is my views.py file:
from django.shortcuts import render_to_response
from article.models import Article
from django.http import HttpResponse
from forms import ArticleForm
from django.http import HttpResponseRedirect
from django.core.context_processors import csrf
#import pdb; pdb.set_trace()
# Create your views here.
def articles(request):
language = 'en-us'
session_language = 'en-us'
if 'lang' in request.COOKIES:
language = request.COOKIES['lang']
if 'lang' in request.session:
session_language = request.session['lang']
return render_to_response('articles.html',
{'articles':
Article.objects.all(), 'language' : language,
'session_language' : session_language})
def article(request, article_id=1):
return render_to_response('article.html', {'article':
Article.objects.get(id=article_id) })
def language(request, language='en-us'):
response = HttpResponse("setting language to %s" %
language)
response.set_cookie('lang', language)
response.session['lang'] = language
return response
def create(request):
if request.POST:
form = ArticleForm(request.POST)
if form.is_valid():
form.save()
return HttpResponseRedirect('/articles/all')
else:
form = ArticleForm()
args = {}
args.update(csrf(request))
args['form'] = form
return render_to_response('create_article.html', args)
I'm not sure how to fix this problem. I looked at the Django documentation but I couldn't find a solution to my problem so any help would be appreciated.
For your form, it's a warning, not an error, telling you that in django 1.8, you will need to change your form to
from django import forms
from models import Article
class ArticleForm(forms.ModelForm):
class Meta:
model = Article
fields = '__all__' # Or a list of the fields that you want to include in your form
Or add an exclude to list fields to exclude instead
Which wasn't required up till 1.8
https://docs.djangoproject.com/en/1.8/topics/forms/modelforms/#selecting-the-fields-to-use
As for the error with your views, your return is inside of an if statement: if request.POST: so when it receives a get request, nothing is returned.
def create(request):
if request.POST:
form = ArticleForm(request.POST)
if form.is_valid():
form.save()
return HttpResponseRedirect('/articles/all')
else:
form = ArticleForm()
args = {}
args.update(csrf(request))
args['form'] = form
return render_to_response('create_article.html', args)
Just dedent the else block so that it's applying to the correct if statement.
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