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Add warning about using UUIDs with activestorage

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Christoph Olszowka 2019-06-27 17:10:00 +02:00 committed by GitHub
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guides/source/active_storage_overview.md
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@ -43,6 +43,8 @@ tables. Use `rails db:migrate` to run the migration.
WARNING: `active_storage_attachments` is a polymorphic join table that stores your model's class name. If your model's class name changes, you will need to run a migration on this table to update the underlying `record_type` to your model's new class name.
WARNING: If you are using UUIDs instead of integers as the primary key on your models you will need to change the column type of `record_id` for the `active_storage_attachments` table in the generated migration accordingly.
Declare Active Storage services in `config/storage.yml`. For each service your
application uses, provide a name and the requisite configuration. The example
below declares three services named `local`, `test`, and `amazon`: