Add support for django-stdimage variations

[MaZZly]

Hiyo..

noticed this removed thumbnails and such for my projects.. So I decided to extend this to support the variations field that django-stdimage uses..

#5

Feel free to merge

Cheers!

[MaZZly]

Might also be worth adding to the README that it support django-stdimage variations.

[vartagg]

It seems that https://github.com/respondcreate/django-versatileimagefield has no attrubute variations.

----> 1 image.variations

AttributeError: 'VersatileImageFieldFile' object has no attribute 'variations'

Probably it would be better to add the possibility of declaring lookups for field thumbnails when running the command

[akolpakov]

Yes, I'm thinking to do something more universal.
Do you know how I can retrieve all thumbnails from VersatileImageFieldFile ?

[vartagg]

@akolpakov In my application using django-versatileimagefield I resolved this issue very simply: there are few settings which can be used for configure locations of changed images: VERSATILEIMAGEFIELD_SIZED_DIRNAME, VERSATILEIMAGEFIELD_FILTERED_DIRNAME, VERSATILEIMAGEFIELD_PLACEHOLDER_DIRNAME, so I just added these paths to -e option when calling the Command

[boryskuczkowski]

Sorry, has this issue been addressed beside ignoring named thumbnails in command?

[akolpakov]

@boryskuczkowski you can ignore thumbnails by using --exclude option, please check README.

But this issue is about to implement some universal automatic solution to exclude them automatically.