How to integrate sorl-thumbnail into an existing django project?

Question

I'm trying to integrate sorl-thumbnail into an existing project to show thumbnails of ImageField photos in the django admin, however am having no results.

I installed sorl using

pip install sorl-thumbnail

then added

'sorl.thumbnails'

to settings.py

then ran manage.py syncdb, then set up admin.py with

from django.contrib import admin
from myapp.models import MyModel
from sorl.thumbnail.admin import AdminImageMixin

class MyModelAdmin(AdminImageMixin, admin.ModelAdmin):
    pass

Though I still don't see a thumbnail on my django admin when viewing the listing for MyModel or when I look at each individual MyModel

What am I doing wrong?

nb: I am using South for migrations and S3 to store the static images for my app

Answer 1

AdminImageMixin changes the widget for the ImageField only if it's an instance of sorl-thumbnail's ImageField. So your model needs to use the following:

from sorl.thumbnail import ImageField

class MyModel(models.Model):
    some_image = ImageField(...)

Instead of django.db.models.ImageField.

If you've done that, the img tag for the thumbnail should be being added next to the field in the admin source, if it is in fact in the source, it might be an issue with storing the files on S3 and the URL being used by sorl-thumbnail doesn't match.