Sorl-thumbnail: Use Sorl Thumbnail with Django Rest Framework

[tagmetag]

How can I use sorl thumbnail with DRF? I follow instruction Low API: http://sorl-thumbnail.readthedocs.io/en/latest/examples.html#low-level-api-examples and get error: my_file is not defined in model. Please help me.

[mark-mishyn]

This works:

if obj.photo:
    return get_thumbnail(obj.photo, '30x30', crop='center', quality=99).url

and photo is ImageField in your model.

[tagmetag]

Thank you. Hope Sorl Thumbnail support for DRF in the future :)

[SalahAdDin]

Can you put it in the documentation?

[kidig]

BTW, I've found a useful package for DRF: https://github.com/dessibelle/sorl-thumbnail-serializer-field

[SalahAdDin]

@kidig Can you put it at documentation?

[maxim25]

@kidig I've found that this library slows down my app significantly. The HyperlinkedSorlImageField generates an additional query to the db and another to the cache (thourgh get_thumbnail). So if you have a simple m2m relationship with ex. 100 images and the image serializer has 2 HyperlinkedSorlImageField (ex one for the thumbnail and one large), it would create an additional 200 queries.

[Atorich]

@maxim25
https://github.com/dessibelle/sorl-thumbnail-serializer-field/blob/master/sorl_thumbnail_serializer/fields.py
There is the whole codebase. Nothing about any extra database queries. Please, check your querysets.