虽然我已经找到了有关如何在Django-Admin(#1,#2,#3)中正确显示图片的有用帖子,但我到目前为止遵循这些好建议并不成功。如下所示,上传的图像无法正确显示,并且正在显示404错误。
下图说明了上传的图像虽然已成功上传到服务器上但未显示的事实:
编辑给定对象时,我也想知道如何显示缩略图 而不是图像的路径: 下面,您可以找到我目前使用的配置:
settings.py
import os
PROJECT_ROOT = os.path.join(os.path.dirname(os.path.abspath(__file__)), '..').replace('\\','/')
SITE_ROOT = PROJECT_ROOT
# Path to media files, e.g. images
MEDIA_ROOT = os.path.join(SITE_ROOT, 'media')
MEDIA_URL = '/media/'
urls.py
from django.conf.urls import patterns, include, url
from django.conf.urls.static import static
from django.conf import settings
from . import views
urlpatterns = patterns('',
# some url configs here ... removed for simplification purposes ;-)
)
if settings.DEBUG is True:
urlpatterns += patterns('', (r'^media/(?P<path>.*)$', 'django.views.static.serve', {'document_root': settings.MEDIA_ROOT}) )
#urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
models.py
class Image(models.Model):
title = models.CharField(db_column='title', max_length=180, blank=True, null=True, help_text="Title of the image")
imagefile = models.ImageField(db_column='imagefile', upload_to='images', null=True, blank=True, help_text="Load an image.")
#... some other fields here, removed for simplification purposes ;-)
def image_(self):
return '<a href="/media/{0}"><img src="/media/{0}"></a>'.format(self.imagefile)
image_.allow_tags = True
class Meta:
managed = False
db_table = 'image'
def __unicode__(self):
return u'%s' % (self.title)
admin.py
from django.contrib import admin
from .models import Image
class ImageAdmin(admin.ModelAdmin):
list_display = ('title', 'description', 'image_', )
search_fields = ('title', 'description')
list_per_page = 25
admin.site.register(Image, ImageAdmin)
答案 0 :(得分:2)
admin.py
from django.contrib import admin
from .models import Image
class ImageAdmin(admin.ModelAdmin):
list_display = ('title', 'description', 'image_display', )
search_fields = ('title', 'description')
list_per_page = 25
def image_display(self, obj):
return '<a href="/media/{0}"><img src="/media/{0}"></a>'.format(self.imagefile.url)
image_.allow_tags = True
image.short_descripition = u'IMAGE'
admin.site.register(Image, ImageAdmin)
这总是对我有用。如果有帮助,请告诉我。
答案 1 :(得分:1)
这个答案推迟了至少一年,但是,如果你仍然遇到同样的问题,你可以这样解决:
首先,让我们假设您的django项目具有此架构并且您正在运行 django 2.0 :
. django_test
|_ django_test
| |_ __init__.py
| |_ settings.py
| |_ urls.py
| |_ wsgi.py
|_ media
| |_ author_headshot
|_ my_app
| |_ admin.py
| |_ __init__.py
| |_ apps.py
| |_ migrations
| |_ models.py
| |_ tests.py
| |_ urls.py
| |_ views.py
|_ static
|_ templates
然后,添加 django_test / settings.py :
# static files will be stored in 'static' folder
STATIC_URL = '/static/'
STATICFILES_DIR = [
BASE_DIR + '/static'
]
# media files will be stored in 'media' folder
MEDIA_URL = '/media/'
MEDIA_ROOT = BASE_DIR + '/media'
然后,在 django_test / urls.py 中,请确保添加 MEDIA_URL 和 MEDIA_ROOT 的静态路径,如下例所示:
from django.contrib import admin
from django.conf import settings
from django.conf.urls.static import static
from django.urls import path
urlpatterns = [
path('admin/', admin.site.urls),
# More paths/urls
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
最后,在您的应用程序模型中,您可以为每个存储媒体文件的ImageField添加一个唯一的文件夹,如下例所示:
在 my_app / models.py :
中from django.db import models
from django.utils.html import format_html
class Author(models.Model):
# My models ...
# Here, the media files will be stored in my_project/media/author_headshot
headshot = models.ImageField(upload_to='author_headshot')
# If you want to show the media files in the list display in the admin panel:
def image_tag(self):
return format_html('<img href="{0}" src="{0}" width="150" height="150" />'.format(self.headshot.url))
image_tag.allow_tags = True
image_tag.short_description = 'Image'
然后,在 my_app / admin.py :
from django.contrib import admin
from . import models
@admin.register(models.Author)
class AuthorAdmin(admin.ModelAdmin):
list_display = ('image_tag')
最后,您的媒体文件将包含以下类型的网址:
django管理面板的屏幕截图:
答案 2 :(得分:0)
当您使用 ImageField 并且使用 image_(self)功能使图像可见时,有一条细线。见下图: this is the link of the image 因为我的声誉不允许我发布图片。 img1 列代表您在 models.py imagefile 变量> 即可。
ImageField 的图像保存在images文件夹中,该文件夹是你的项目/媒体/图片目录。
当您使用“媒体/ {0} ”时, image_(自我)功能指向更深层次,即它将指向您的 - 项目/媒体//媒体/图像 (注意//这里是由于额外/ / {0}而来的)。您的功能应修改如下:
def image_tag(self):
return '<a href="{0}"><img src="{0}" width = "120" height = "120"></a>'.format(self.img1.url)
image_tag.allow_tags = True
image_tag.short_description = 'y-Image'