【发布时间】：2019-05-03 16:12:48
【问题描述】：
我正在用 django 创建一个博客，当我想打开 http://127.0.0.1:8000/accounts/login 时出现错误：
init() 接受 1 个位置参数，但给出了 2 个
异常位置：
C:\ProgramData\Miniconda3\envs\myDjanEnv\lib\site-packages\django\core\handlers\base.py 在 _get_response，第 124 行
这是 base.py 的第 124 行代码：
if response is None:
wrapped_callback = self.make_view_atomic(callback)
try:
<!-- line 124 --> response = wrapped_callback(request, *callback_args, **callback_kwargs)
except Exception as e:
response = self.process_exception_by_middleware(e, request)
VIEWS.PY 代码：
from django.shortcuts import render,get_object_or_404,redirect
from django.utils import timezone
from blog.models import Post,Comment
from blog.forms import PostForm,CommentForm
from django.urls import reverse,reverse_lazy
from django.contrib.auth.mixins import LoginRequiredMixin
from django.contrib.auth.decorators import login_required
from django.views.generic import (TemplateView,ListView,
DetailView,CreateView,
UpdateView,DeleteView,)
# Create your views here.
class AboutView(TemplateView):
template_name = 'about.html'
class PostListView(ListView):
model = Post
def get_queryset(self):
return Post.objects.filter(published_date__lte=timezone.now()).order_by('-published_date')
class PostDetailView(DetailView):
model = Post
class CreatePostView(LoginRequiredMixin,CreateView):
login_url = '/login/'
redirect_field_name = 'blog/post_detail.html'
# form_class = PostForm
model = Post
class PostUpdateView(LoginRequiredMixin,UpdateView):
login_url = '/login/'
redirect_field_name = 'blog/post_detail.html'
# form_class = PostForm
model = Post
class PostDeleteView(LoginRequiredMixin,DeleteView):
model = Post
success_url = reverse_lazy('post_list')
class DraftListView(LoginRequiredMixin,ListView):
login_url = '/login/'
redirect_field_name = 'blog/post_list.html'
model = Post
def get_queryset(self):
return Post.objects.filter(published_date__isnull=True,).order_by('created_date')
###############################################
###############################################
@login_required
def post_publish(request,pk):
post = get_object_or_404(Post,pk=pk)
post.publish
return redirect('post_detail',pk=pk)
@login_required
def add_comment_to_post(request,pk):
post = get_object_or_404(Post,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/comment_form.html',{'form':form})
@login_required
def comment_approve(request,pk):
comment = get_object_or_404(Comment,pk=pk)
comment.approve()
return redirect('post_detail',pk=comment.post.pk)
@login_required
def comment_remove(request,pk):
comment = get_object_or_404(Comment,pk=pk)
post_pk = comment.post.pk
comment.delete()
return redirect('post_detail',pk=post_pk)
FORMS.PY 代码：
from django import forms
from blog.models import Post,Comment
class PostForm(forms.ModelForm):
class Meta():
model = Post
fields = ('author','title','text')
widgets = {
'title':forms.TextInput(attrs={'class':'textinputclass'}),
'text':forms.Textarea(attrs={'class':'editable medium-editor-textarea postcontent'})
}
class CommentForm(forms.ModelForm):
class Meta():
model = Comment
fields = ('author','text')
widgets = {
'author':forms.TextInput(attrs={'class':'textinputclass'}),
'text':forms.Textarea(attrs={'class':'editable medium-editor-textarea'})
}
模型.PY 代码：
from django.db import models
from django.utils import timezone
from django.urls import reverse,reverse_lazy
# Create your models here.
class Post(models.Model):
author = models.ForeignKey('auth.User',on_delete=models.PROTECT)
title = models.CharField(max_length=200)
text = models.TextField()
create_date = models.DateTimeField(default=timezone.now)
published_date = models.DateTimeField(blank=True,null=True)
def publish(self):
self.published_date = timezone.now()
self.save()
def approve_comments(self):
return self.comments.filter(approve_comment=True)
def get_absolute_rul(self):
return reverse("post_detail",kwargs={'pk':self.pk})
def __str__(self):
return self.title
class Comment(models.Model):
post = models.ForeignKey('blog.Post',related_name='comments',on_delete=models.PROTECT)
author = models.CharField(max_length=200)
text = models.TextField()
create_date = models.DateTimeField(default=timezone.now)
approve_comment = models.BooleanField(default=False)
def approve(self):
self.approved_comment = True
self.save()
def get_absolute_rul(self):
return reverse('post_list')
def __str__(self):
return self.text
URLS.PY（在 setting.py 所在的同一文件夹中）：
from django.contrib import admin
from django.urls import path
from django.conf.urls import url,include
from django.contrib.auth import views
from django.contrib.auth.views import LoginView
urlpatterns = [
path('admin/', admin.site.urls),
url(r'',include('blog.urls')),
url(r'accounts/login/$',views.LoginView,name='login'),
url(r'accounts/logout/$',views.LogoutView,name='logout',kwargs={'next_page':'/'}),
]
URLS.PY（在 VIEWS.PY 所在的同一文件夹中）
from django.conf.urls import url
from blog import views
urlpatterns = [
url(r'^$',views.PostListView.as_view(),name='post_list'),
url(r'^about/$',views.AboutView.as_view(),name='about'),
url(r'^post/(?P<pk>\d+)$',views.PostDetailView.as_view(),name='post_detail'),
url(r'^post/new/$',views.CreatePostView.as_view(),name='post_new'),
url(r'^post/(?P<pk>\d+)/edit/$',views.PostUpdateView.as_view(),name='post_edit'),
url(r'^post/(?P<pk>\d+)/remove/$',views.PostDetailView.as_view(),name='post_remove'),
url(r'^drafts/$',views.DraftListView.as_view(),name='post_draft_list'),
url(r'^post/(?P<pk>\d+)/comment/$',views.add_comment_to_post,name='add_comment_to_post'),
url(r'^post/(?P<pk>\d+)/approve/$',views.comment_approve,name='comment_approve'),
url(r'^post/(?P<pk>\d+)/remove/$',views.comment_remove,name='comment_remove'),
url(r'^post/(?P<pk>\d+)/publish/$',views.post_publish,name='post_publish'),
]
有什么问题？
【问题讨论】：
-
请显示 urls.py
-
urls.py 添加到帖子末尾
-
@sf31 问题在于 urls.py 中的
LoginView和LogoutView。请查看我的更新答案。