"Just" use static files for logos.

src/bornhack/settings.py

@@ -49,7 +49,7 @@ INSTALLED_APPS = [
     'django_extensions',
 ]
 
-MEDIA_URL = '/media/'
+#MEDIA_URL = '/media/'
 STATIC_URL = '/static/'
 STATIC_ROOT = local_dir('static')
 STATICFILES_DIRS = [local_dir('static_src')]

src/bornhack/urls.py

@@ -334,5 +334,3 @@ if settings.DEBUG:
     urlpatterns = [
         url(r'^__debug__/', include(debug_toolbar.urls)),
     ] + urlpatterns
-
-    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

src/sponsors/models.py

@@ -25,15 +25,15 @@ class Sponsor(CreatedUpdatedModel):
         help_text='A short description of the sponsorship'
     )
 
-    logo = models.ImageField(
-        upload_to=get_sponsor_upload_path,
-        help_text='A logo for the sponsor'
+    logo = models.URLField(
+        max_length=255,
+        help_text='A URL to the logo'
     )
 
     url = models.URLField(
         null=True,
         blank=True,
-        help_text="A URL to the sponsor."
+        help_text="An URL to the sponsor."
     )
 
     def __str__(self):

src/sponsors/templates/sponsors.html

@@ -25,7 +25,7 @@ Sponsors | {{ block.super }}
         </section>
         {% endif %}
         <div class="page-header">
-            <h1>{{ sponsor.tier.name}} <small>{{ sponsor.tier.description}}</small></h1>
+            <h1>{{ sponsor.tier.name}}</h1>
         </div>
         <section>
 
@@ -35,7 +35,7 @@ Sponsors | {{ block.super }}
         {% if sponsor.url %}
         <a href="{{ sponsor.url }}">
         {% endif %}
-        <img src="{{ sponsor.logo.url }}" />
+        <img src="{{ sponsor.logo }}" />
 
         <div class="caption">
             {{ sponsor.description }}