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| author | Alex Gomez <alex.gomez@shopify.com> | 2019-06-06 10:29:45 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-06-06 10:29:45 -0400 |
| commit | a057569685471fc668b269bfa6f4c282b09e399e (patch) | |
| tree | 7350c989d91d868c202aee3b8f08294f4a817d78 /actionview/test | |
| parent | 480d9f2d2431e6a11c89edb45123181f9b6db958 (diff) | |
| download | rails-a057569685471fc668b269bfa6f4c282b09e399e.tar.gz rails-a057569685471fc668b269bfa6f4c282b09e399e.tar.bz2 rails-a057569685471fc668b269bfa6f4c282b09e399e.zip | |
Include warning in docs about polymorphism in underlying tables
We had a bug whereby we changed the namespace on a model using ActiveStorage, which resulted in broken download links. The reason this happened is because the `active_storage_attachments` table is a polymorphic join table that records the model's class name at the time of record creation, and uses this `record_type` in queries. Since the model namespace changed, the queries did not return the blob as expected. Discussed with @rafaelfranca, who suggested adding a warning about this in the docs.
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