fix(db): allow deleting users that have shares #4098
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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!
Summary of Changes
Hello! Gemini here, providing a summary of this pull request by @kgarner7. The primary goal of this PR, as indicated by the title, is to fix an issue in the database schema that prevented users from being deleted if they had associated shares. This is achieved by modifying the foreign key constraint on the share table's user_id column to include ON DELETE CASCADE. The change is implemented via a new database migration script.
Highlights
- Database Fix: Addresses a bug where users could not be deleted if they had existing shares linked to their account.
- Schema Modification: Modifies the
sharetable's foreign key constraint referencing theusertable to includeON DELETE CASCADE. - Database Migration: Introduces a new SQL migration script (
20250522013904_share_user_id_on_delete.sql) to apply the schema change safely using a temporary table strategy.
Changelog
- db/migrations/20250522013904_share_user_id_on_delete.sql
- Adds a new database migration file.
- Modifies the
sharetable schema to addON DELETE CASCADEto theuser_idforeign key. - Uses a temporary table (
share_tmp) to copy data, drop the old table, and rename the new one, ensuring data is preserved during the schema change.
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Database schema,
A cascade delete dream,
Users now can go.
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Code Review
This pull request introduces a database migration to allow deleting users who have associated shares by adding an ON DELETE CASCADE constraint to the share table's foreign key referencing the user table. The Up migration correctly implements this change using a standard temporary table approach to handle existing data. However, the Down migration is incomplete and does not provide the necessary steps to revert this schema change. No specific style guide was provided, and the review followed common SQL practices.
Summary of Findings
- Incomplete Down Migration: The
Downmigration is missing the necessary SQL statements to revert the schema changes made by theUpmigration. This could lead to issues if a rollback is required. - Style Guide Adherence: No specific style guide was provided for this repository. The review was conducted based on common SQL practices.
Merge Readiness
This pull request introduces a necessary database schema change. The Up migration correctly implements the required foreign key constraint with ON DELETE CASCADE. However, the Down migration is incomplete, which is a high-severity issue as it prevents proper rollback. This PR should not be merged until the Down migration is fully implemented. I am unable to approve this pull request; please have other reviewers review and approve this code before merging.
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