我正在尝试使用Pillow在我的网络应用中添加用户可上传的图像。我创建了一个Django Upload模型并在Admin中注册。只要我使用管理控制台添加照片，我就会收到以下错误。最初该网站工作正常
错误
from collection.backends import MyRegistrationView
from django.conf.urls import include, url
from django.contrib import admin
from collection import views
from django.conf import settings
from django.views.generic import TemplateView
from django.contrib.auth.views import (
password_reset,
password_reset_done,
password_reset_confirm,
password_reset_complete
)
urlpatterns = [
url(r'^$', views.index, name='home'),
url(r'^about/$',TemplateView.as_view(template_name='about.html'),name='about'),
url(r'^contact/$',TemplateView.as_view(template_name='contact.html'),name='contact'),
url(r'^things/(?P<slug>[-\w]+)/$','collection.views.thing_detail',name='thing_detail'),
url(r'^things/(?P<slug>[-\w]+)/edit/$','collection.views.edit_thing',name='edit_thing'),
url(r'^things/(?P<slug>[-\w]+)/edit/weight$','collection.views.edit_weight',name='edit_weight'),
url(r'^things/(?P<slug>[-\w]+)/delete/weight$','collection.views.remove_weight',name='remove_weight'),
#WORKING url(r'^things/(?P<pk>\d+)/remove/$', 'collection.views.remove_weight', name='remove_weight'),
url(r'^things/$',TemplateView.as_view(template_name='weight_removed.html'),name='weight_removed'),
url(r'^(?P<slug>[\w\d-]+)/(?P<pk>\d+)/$','collection.views.remove_weight',name='remove_weight'),
#url(r'^edit/(?P<slug>\d+)/weights$', 'collection.views.AddWeight',name='AddWeight'),
# the new password reset URLs
url(r'^accounts/password/reset/$',password_reset,{'template_name':'registration/password_reset_form.html'},name="password_reset"),
url(r'^accounts/password/reset/done/$',password_reset_done,{'template_name':'registration/password_reset_done.html'},name="password_reset_done"),
url(r'^accounts/password/reset/(?P<uidb64>[0-9A-Za-z]+)-(?P<token>.+)/$',password_reset_confirm,{'template_name':'registration/password_reset_confirm.html'},name="password_reset_confirm"),
url(r'^accounts/password/done/$',password_reset_complete,{'template_name':'registration/password_reset_complete.html'},name="password_reset_complete"),
#setup additional registeration page
url(r'^accounts/register/$',MyRegistrationView.as_view(),name='registration_register'),
url(r'^accounts/create_thing/$','collection.views.create_thing',name='registration_create_thing'),
url(r'^accounts/',include('registration.backends.default.urls')),
url(r'^admin/', include(admin.site.urls)),
]
if settings.DEBUG:
urlpatterns += [
url(r'^media/(?P<path>.*)$','django.views.static.serve',{'document_root': settings.MEDIA_ROOT,}),
]
Urls.py
from django.db import models
from django.contrib.auth.models import User
from django.db import models
from django.utils import timezone
class Thing(models.Model):
name = models.CharField(max_length=255)
description = models.TextField()
slug = models.SlugField(unique=True)
user = models.OneToOneField(User, blank=True, null=True)
class Weight(models.Model):
date = models.DateTimeField(default=timezone.now)
weight_value = models.CharField(max_length=255)
thingRA = models.ForeignKey(Thing,related_name="weights")
class Meta:
order_with_respect_to = 'thingRA'
ordering = ['date']
def get_image_path(instance, filename):
return '/'.join(['thing_images', instance.thing.slug, filename])
class Upload(models.Model):
thing = models.ForeignKey(Thing, related_name="uploads")
image = models.ImageField(upload_to=get_image_path)
模特.py
from django.contrib import admin
# import your model
from collection.models import Thing, Weight, Upload
class ThingAdmin(admin.ModelAdmin):
model = Thing
list_display = ('name', 'description',)
prepopulated_fields = {'slug': ('name',)}
# and register it
admin.site.register(Thing, ThingAdmin)
class WeightAdmin(admin.ModelAdmin):
model = Weight
list_display = ('date','weight_value',)
admin.site.register(Weight, WeightAdmin)
class UploadAdmin(admin.ModelAdmin):
list_display = ('thing', )
list_display_links = ('thing',)
# and register it
admin.site.register(Upload, UploadAdmin)
Admin.py
{% load staticfiles %}
<!DOCTYPE html>
<html>
<head>
<title>
{% block title %}
WEB PAGE BY SHASHANK
{% endblock title %}
</title>
<link rel="stylesheet" href="{% static 'css/style.css' %}" />
</head>
<body>
<div id="page">
<div id="logo">
<h1><a href="/" id="logoLink">S PORTAL</a></h1>
</div>
<div id="nav">
<ul>
<li><a href="{% url 'home' %}">Home</a></li>
<li><a href="{% url 'about' %}">About</a></li>
<li><a href="{% url 'contact' %}">Contact</a></li>
{% if user.is_authenticated %}
<li><a href="{% url 'auth_logout' %}">Logout</a></li>
<li><a href="{% url 'thing_detail' slug=user.thing.slug %}">My Profile</a></li>
{% else %}
<li><a href="{% url 'auth_login' %}">Login</a></li>
<li><a href="{% url 'registration_register' %}">Register</a></li>
{% endif %}
</ul>
</div>
{% block content %}{% endblock content %}
<div id="footer">
<p>
Webpage made by <a href="/" target="_blank">SHASHANK</a>
</p>
</div>
</div>
</body>
</html>
base.html文件
from django.shortcuts import render,redirect,get_object_or_404
from collection.models import Thing, Weight
from collection.forms import ThingForm, WeightForm, ThingWeightFormSet
from django.template.defaultfilters import slugify
from django.contrib.auth.decorators import login_required
from django.http import Http404
from django.views.decorators.csrf import csrf_protect
from django.views.generic import ListView, CreateView, UpdateView
from django import forms
def index(request):
things = Thing.objects.all()
return render(request,'index.html',{'things':things,})
def thing_detail(request, slug):
# grab the object...
thingRA = Thing.objects.get(slug=slug)
weights = thingRA.weights.all().order_by('-date')
# and pass to the template
return render(request, 'things/thing_detail.html', {'thing': thingRA, 'weights':weights,})
def edit_thing(request, slug):
# grab the object
thing = Thing.objects.get(slug=slug)
# set the form we're using
form_class = ThingForm
# if we're coming to this view from a submitted form
if request.method == 'POST':
# grab the data from the submitted form and apply to
# the form
form = form_class(data=request.POST, instance=thing)
if form.is_valid():
# save the new data
form.save()
return redirect('thing_detail', slug=thing.slug)
# otherwise just create the form
else:
form = form_class(instance=thing)
# and render the template
return render(request, 'things/edit_thing.html', {'thing': thing,'form': form,})
def create_thing(request):
form_class = ThingForm
if request.method == 'POST':
form = form_class(request.POST)
if form.is_valid():
thing = form.save(commit=False)
thing.user = request.user
thing.slug = slugify(thing.name)
thing.save()
slug = slugify(thing.name)
return redirect('thing_detail', slug=thing.slug)
else:
form = form_class()
return render(request,'things/create_thing.html', {'form': form,})
def edit_weight(request, slug):
thing = get_object_or_404(Thing, slug=slug)
if request.method == "POST":
form = WeightForm(request.POST)
if form.is_valid():
weight = form.save(commit=False)
weight.thingRA = thing
weight.save()
return redirect('thing_detail', slug=thing.slug)
else:
form = WeightForm()
return render(request, 'things/edit_weight.html', {'form': form})
"""WORKING WEIGHT
def remove_weight(request, pk):
weight = get_object_or_404(Weight, pk=pk)
thing_pk = weight.thingRA.pk
weight.delete()
return redirect('weight_removed')
"""
def remove_weight(request, pk, slug):
weight = get_object_or_404(Weight, pk=pk)
thing = get_object_or_404(Thing, slug=slug)
thing_pk = weight.thingRA.pk
weight.delete()
return redirect('thing_detail', slug=slug)
@login_required
def edit_thing(request, slug):
# grab the object...
thing = Thing.objects.get(slug=slug)
# make sure the logged in user is the owner of the thing
if thing.user != request.user:
raise Http404
# set the form we're using...
form_class = ThingForm
# if we're coming to this view from a submitted form,
if request.method == 'POST':
# grab the data from the submitted form and
# apply to the form
form = form_class(data=request.POST, instance=thing)
if form.is_valid():
# save the new data
form.save()
return redirect('thing_detail', slug=thing.slug)
# otherwise just create the form
else:
form = form_class(instance=thing)
# and render the template
return render(request, 'things/edit_thing.html', {'thing': thing,'form': form,})
View.py
cin >> name >> course >> grade;答案 0 :(得分：2)
我会说你有%PATH%的东西。你可以使用django shell来解决这个问题：
slug=""根据您的模型定义from yourapp.models import Thing
Thing.objects.get(slug='')
可以为空，但您的网址模式不接受空白slug。你必须修复你的slug字段或url模式。
答案 1 :(得分：1)
您可能在模板中使用{% url 'thing_detail' slug=thing.slug %}，其中'thing'对象具有空slug属性。
在模板中添加一个条件，检查对象中的现有slug，以便不调用模板标记，或确保没有任何Thing对象有空白slug。
答案 2 :(得分：0)
终于明白了。问题在代码中没有出现。实际上我只需要从Django的管理面板注销。由于登录管理面板阻止其他用户与其相关数据进行交互。