Posso fazer upload de uma imagem através da página de administração, mas a imagem não pode ser encontrada quando navego para o URL gerado pelo django. (Erro 404) Os arquivos estão sendo carregados na pasta:

project_root/media/eventbanner/1/

Eu tentei várias soluções, mas nenhuma parece funcionar para a minha situação. O Django 1.10 está sendo executado localmente no Ubuntu 16.04.

O URL que recebo é:

http://localhost:8000/media/eventbanner/1/banner_image.jpg

A pasta raiz da mídia está localizada em:

/home/username/xxx/xxx/project_name/media

Código no arquivo HTML:

<div class="banner-image">
  <img src="{{ event.eventbanner.banner_image.url }}"/>
</div>

código url.py:

from django.conf.urls import url, include
from django.contrib import admin
from . import views
from django.conf import settings
from django.conf.urls.static import static

app_name = 'events'

urlpatterns = [
url(r'^
settings.py
STATIC_URL = '/static/'
STATICFILES_DIRS =[os.path.join(BASE_DIR, 'static'),]

MEDIA_ROOT = os.path.join(BASE_DIR, 'media/')
MEDIA_URL = '/media/'
models.py
def validate_only_one_instance(obj):
    model = obj.__class__
    if (model.objects.count() > 0 and obj.id != model.objects.get().id):
        raise ValidationError("Can only create 1 %s instance" % model.__name__)

class EventBanner(models.Model):
    event = models.OneToOneField(Event, unique=True)
    banner_image = models.ImageField(upload_to=get_image_path, blank=True, null=True)

    def clean(self):
        validate_only_one_instance(self)
, views.index, name='index'),
url(r'^details/(?P<event_id>[0-9]+)/
settings.py
STATIC_URL = '/static/'
STATICFILES_DIRS =[os.path.join(BASE_DIR, 'static'),]

MEDIA_ROOT = os.path.join(BASE_DIR, 'media/')
MEDIA_URL = '/media/'
models.py
def validate_only_one_instance(obj):
    model = obj.__class__
    if (model.objects.count() > 0 and obj.id != model.objects.get().id):
        raise ValidationError("Can only create 1 %s instance" % model.__name__)

class EventBanner(models.Model):
    event = models.OneToOneField(Event, unique=True)
    banner_image = models.ImageField(upload_to=get_image_path, blank=True, null=True)

    def clean(self):
        validate_only_one_instance(self)
, views.details, name='details'),
url(r'^details/(?P<event_id>[0-9]+)/addcomment/
settings.py
STATIC_URL = '/static/'
STATICFILES_DIRS =[os.path.join(BASE_DIR, 'static'),]

MEDIA_ROOT = os.path.join(BASE_DIR, 'media/')
MEDIA_URL = '/media/'
models.py
def validate_only_one_instance(obj):
    model = obj.__class__
    if (model.objects.count() > 0 and obj.id != model.objects.get().id):
        raise ValidationError("Can only create 1 %s instance" % model.__name__)

class EventBanner(models.Model):
    event = models.OneToOneField(Event, unique=True)
    banner_image = models.ImageField(upload_to=get_image_path, blank=True, null=True)

    def clean(self):
        validate_only_one_instance(self)
, views.add_comment, name='add_comment'),
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

settings.py

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

MEDIA_ROOT = os.path.join(BASE_DIR, 'media/')
MEDIA_URL = '/media/'

models.py

def validate_only_one_instance(obj):
    model = obj.__class__
    if (model.objects.count() > 0 and obj.id != model.objects.get().id):
        raise ValidationError("Can only create 1 %s instance" % model.__name__)

class EventBanner(models.Model):
    event = models.OneToOneField(Event, unique=True)
    banner_image = models.ImageField(upload_to=get_image_path, blank=True, null=True)

    def clean(self):
        validate_only_one_instance(self)