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| -rw-r--r-- | guides/source/active_storage_overview.md | 2 |
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diff --git a/guides/source/active_storage_overview.md b/guides/source/active_storage_overview.md index 2986850cef..932a5dc2e9 100644 --- a/guides/source/active_storage_overview.md +++ b/guides/source/active_storage_overview.md @@ -41,6 +41,8 @@ application (or upgrading your application to Rails 5.2), run `rails active_storage:install` to generate a migration that creates these 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. + 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`: |