fix(db): add user foreign key constraint to annotation table #4211
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Associates user_id with user.id, with cascade for delete (drop annotation) and update (update annotation). Migration script will only copy/insert annotations for user IDs that exist
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Summary of Changes
Hello @kgarner7, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request introduces a database migration to enforce referential integrity between the annotation and user tables. It establishes a foreign key relationship on the user_id column, ensuring that annotations are correctly linked to existing users and handling user deletion/updates gracefully via cascading actions. The migration process also cleans up any existing annotations that might be associated with non-existent user IDs.
Highlights
- Database Schema Update: Adds a foreign key constraint to the
annotationtable, linking theuser_idcolumn to theidcolumn of theusertable. - Data Integrity & Cascading Actions: Configures the foreign key with
ON DELETE CASCADEandON UPDATE CASCADEto automatically remove or update associated annotations when a user is deleted or their ID changes. - Data Migration & Cleanup: Includes a migration script that rebuilds the
annotationtable, copying only those annotations whoseuser_idexists in theusertable, effectively cleaning up orphaned annotations.
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Code Review
This pull request introduces a foreign key constraint to the annotation table, linking user_id to the user table's id. This enhances data integrity by ensuring annotations are associated with existing users and defines cascading behavior for updates and deletes. The migration correctly handles existing data by only migrating annotations for valid users.
My review focuses on two main areas:
- The
user_idcolumn definition in the newannotationtable. - The completeness of the database migration script, particularly regarding rollback capability.
Detailed comments are provided below.
db/migrations/20250611024036_add_annotation_user_foreign_key.sql
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db/migrations/20250611024036_add_annotation_user_foreign_key.sql
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Signed-off-by: Deluan <deluan@navidrome.org>
Associates user_id with user.id, with cascade for delete (drop annotation) and update (update annotation). Migration script will only copy/insert annotations for user IDs that exist