使用模板标签找不到Django图像

我已经麻烦了很多天，给出的所有解决方案都没有帮助我。如果我使用模板变量 {{ userprofile.photo.url}}（结果是 Alt 文本），我想显示的图像配置文件不会出现，但是当我像这样放置图像路径时它确实有效：/仪表板/媒体/仪表板/照片/配置文件/用户.png。

我试过调试，看起来 url 不错，但给出的结果是这样的：

[27/Nov/2017 13:55:07] "GET /dashboard/ HTTP/1.1" 200 44757
Not Found: /media/dashboard/photos/profils/user.png
[27/Nov/2017 13:55:07] "GET /media/dashboard/photos/profils/user.png HTTP/1.1" 404 2295

这里是项目的文件：

项目结构：

project_dir/
 dash-app/
    __init__.py
    settings.py
    urls.py
    wsgi.py
 dashboard/
    __init__.py
    admin.py
    app.py
    forms.py
    models.py
    urls.py
    views.py
    ...
  templates/
    dashboard/
       index.html
       ...
  static/
    dashboard/
      images/
         logo9.png
         ...
  media/
    dashboard/
      photos/
        profils/
           user.png
           ...

在 urls.py 上：

from django.conf.urls import url
from dashboard import models
from dashboard import views
from django.conf.urls.static import static
from django.conf import settings

urlpatterns = [
    url(r'^$', views.index, name='index'),
]
if settings.DEBUG:
    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
    urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)

在 settings.py 上：

STATIC_URL = '/static/'
STATICFILES_DIRS = [
    os.path.join(BASE_DIR, "static"),
]
STATIC_ROOT = os.path.join(BASE_DIR, "dashboard", "static")

#dashboard/media/
MEDIA_URL = "/media/"
MEDIA_ROOT = os.path.join(BASE_DIR, "dashboard", "media", "dashboard")

在 models.py 上：

from django.core.files.storage import FileSystemStorage

image_storage = FileSystemStorage(
    # Physical file location ROOT
    location='{0}/'.format(settings.MEDIA_ROOT),
    # Url for file
    base_url='{0}/dashboard/'.format(settings.MEDIA_URL),
)

def image_directory_path(instance, filename):
    # file will be uploaded to MEDIA_ROOT/dashboard/picture/<filename>
    return 'photos/profils/{0}'.format(filename)

def logo_directory_path(instance, filename):
    # file will be uploaded to MEDIA_ROOT/dashboard/picture/<filename>
    return 'photos/logos/{0}'.format(filename)

...

   # Photos
    photo = models.ImageField(blank=True, 
                              upload_to=image_directory_path, 
                              storage=image_storage)

    # Logo de l'activité
    photo = models.ImageField(null=True, 
                              upload_to=logo_directory_path, 
                              storage=image_storage)

在 views.py 上：

def index(request):
    connected = models.UserProfile.objects.get(user=request.user)
    print(connected.photo.url)
    context={
        'userprofile':connected,
    }    
    return render(request, 'dashboard/index.html', context)

在 index.html 上：

 <!-- menu profile quick info -->
  <div class="profile clearfix">
    <div class="profile_pic">

    {% if userprofile.photo %}
        <img src="{{ userprofile.photo.url }}" alt="User" class="img-circle profile_img">
    {% else %}
        <img src="media/dashboard/photos/profils/user.png" alt="..." class="img-circle profile_img">
    {% endif %}
    </div>
    <div class="profile_info">
      <span>Bienvenu,</span>
      <h2>{{ userprofile }}</h2>
    </div>
  </div>
  <!-- /menu profile quick info -->

我正在使用 python 3 和 Django 1.11.5 谢谢你的帮助！

编辑：我已经在私人导航上打开了应用程序以重新加载并查看缓存中是否有内容，并且我知道我发现没有任何效果，无论是 :{{ userprofile.photo.url|slice:"1:" }}还是media/dashboard/photos/profils/user.png. 有什么东西可以将>media 的文件链接重新加载到项目或类似的东西。因为如果手动将图像添加到文件夹中，或者我通过 Django 管理界面上传它，有什么区别吗？

解决：我改变了这些行：MEDIA_ROOT = os.path.join(BASE_DIR, "dashboard", "media", "dashboard")到MEDIA_ROOT = os.path.join(BASE_DIR, "dashboard", "media")

image_storage = FileSystemStorage( # Physical file location ROOT location='{0}/'.format(settings.MEDIA_ROOT), # Url for file base_url='{0}/dashboard/'.format(settings.MEDIA_URL), )

至

image_storage = FileSystemStorage( # Physical file location ROOT location='{0}/dashboard/'.format(settings.MEDIA_ROOT), # Url for file base_url='{0}/dashboard/'.format(settings.MEDIA_URL), )