我一直在http://lightbird.net/dbe/photo.html上开发这个照片管理器和共享应用程序第一部分。我正在尝试添加图片，当我这样做时。我得到这个错误。
Page not found (404)
Request Method: GET
Request URL: http://donkey123.pythonanywhere.com/admin/photo/image/1/images/Penguins_7.jpg/
image object with primary key u'1/images/Penguins_7.jpg' does not exist.
You're seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 404 page.
我的模型是
from django.db import models
from django.contrib.auth.models import User
from django.contrib import admin
from string import join
import os
from PIL import Image as PImage
from mysite.settings import MEDIA_ROOT
class Album(models.Model):
title = models.CharField(max_length=60)
public = models.BooleanField(default=False)
def __unicode__(self):
return self.title
class Tag(models.Model):
tag = models.CharField(max_length=50)
def __unicode__(self):
return self.tag
class Image(models.Model):
title = models.CharField(max_length=60, blank=True, null=True)
image = models.FileField(upload_to="images/")
tags = models.ManyToManyField(Tag, blank=True)
albums = models.ManyToManyField(Album, blank=True)
created = models.DateTimeField(auto_now_add=True)
rating = models.IntegerField(default=50)
width = models.IntegerField(blank=True, null=True)
height = models.IntegerField(blank=True, null=True)
user = models.ForeignKey(User, null=True, blank=True)
def __unicode__(self):
return self.image.name
def save(self, *args, **kwargs):
"""Save image dimensions."""
super(Image, self).save(*args, **kwargs)
im = PImage.open(os.path.join(MEDIA_ROOT, self.image.name))
self.width, self.height = im.size
super(Image, self).save(*args, ** kwargs)
def size(self):
"""Image size."""
return "%s x %s" % (self.width, self.height)
def __unicode__(self):
return self.image.name
def tags_(self):
lst = [x[1] for x in self.tags.values_list()]
return str(join(lst, ', '))
def albums_(self):
lst = [x[1] for x in self.albums.values_list()]
return str(join(lst, ', '))
def thumbnail(self):
return """<a href="/media/%s"><img border="0" alt="" src="/media/%s" height="40" /></a>""" % (
(self.image.name, self.image.name))
thumbnail.allow_tags = True
class AlbumAdmin(admin.ModelAdmin):
search_fields = ["title"]
list_display = ["title"]
class TagAdmin(admin.ModelAdmin):
list_display = ["tag"]
class ImageAdmin(admin.ModelAdmin):
search_fields = ["title"]
list_display = ["__unicode__", "title", "user", "rating", "size", "tags_", "albums_","thumbnail","created"]
list_filter = ["tags", "albums","user"]
def save_model(self, request, obj, form, change):
obj.user = request.user
obj.save()
MEDIA_ROOT=我认为 My Models,py 很好，但我认为问题在于
MEDIA URL=
我的MEDIA_ROOT = '/home/donkey123/mysite/photo'
而我MEDIA_URL的是“”，它是空白的。
我不知道该为我准备什么，MEDIA_URL这是问题所在。
提前致谢