Dumpdata only serializes filename

[rclmenezes]

When using Django 1.5.5, I'm running into the issue where dumpdata is only outputting the filename of the CroppableImageField, without its coord_csv.

It seems that the best way to solve this is to use value_to_string():
https://docs.djangoproject.com/en/1.6/howto/custom-model-fields/#django.db.models.Field.value_to_string

Adding this to CroppableImageField seems to work for me:

def value_to_string(self, obj):
        if obj.picture:
            value = obj.picture.filename + IMAGE_FIELD_DELIMITER + obj.picture.coords_csv
        else:
            value = ''
        return self.get_prep_value(value)

Note that this doesn't solve loaddata...

Edit:
Found a way to make loaddata work! Overload get_db_prep_save():
https://docs.djangoproject.com/en/1.5/howto/custom-model-fields/#django.db.models.Field.get_db_prep_save

def get_db_prep_save(self, value, connection):
        return value.filename + IMAGE_FIELD_DELIMITER + value.coords_csv

[danxshap]

Great finds! Any chance you can submit a pull request?

[rclmenezes]

Sure, when I'm less busy! Gimme a couple of days!