GenericForeignKey import/export

How do you manage Generic Relations using django-import-export ?

A GenericForeignKey combines two informations to generate a relation: a content_type and an object_id.

Since each field has his own logic in django-import-export, I was thinking of using before_import_row or before_save_instance to define the combination of the above two fields.

Has anyone tried building a GenericForeignKeyWidget ?

[wreeecks]

@msmaromi For a generic foreign key field called address on my model Dude, I just have this field in my ModelResource:

class DudeResource(resources.ModelResource):
    address = fields.Field(
        column_name='address',
        attribute='address',
        widget=widgets.ForeignKeyWidget(Address, 'name'))  # use a unique field

    class Meta:
        model = Dude
        fields = ['address']

So in the CSV file (or whatever format you’re using), import/export will use whatever you specify in the address column like:

Address.objects.get(name=name)

Using ForeignKeyWidget to get the GenericRelation didn’t work.

[johnfraney]

I was able to import/export a generic foreign key using the built-in ForeignKey widget.