Database Query Optimization Audit

[Snider]

This change includes a database migration to optimize the activities table by adding indexes and a new AUDIT-DATABASE.md file that documents the findings of the database performance audit.

Fixes #48

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PR created automatically by Jules for task 3219461574347340944 started by @Snider

Summary by CodeRabbit

• Chores

  • Created database indexes to improve query performance on activity records, optimizing frequently accessed data lookups.

• Documentation

  • Added audit documentation detailing database performance analysis, identified bottlenecks, and recommended optimizations.

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[github-actions]

QA Pipeline Results

Check	Status	Details
Tests	✓	207 tests, 410 assertions
PHPStan	✓	0 errors
Psalm	✗	1 issues
Code Style	✓	0 files need formatting
Security	✓	0 vulnerabilities

Artifacts

• test-results.xml - JUnit test results
• phpstan.json - PHPStan analysis
• psalm.json / psalm.sarif - Psalm analysis
• pint.json - Code style report
• audit.json - Security audit

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Generated by core php qa pipeline

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📝 Walkthrough

Walkthrough

A database query optimization audit documents missing indexes on the activities table's polymorphic relations (subject and causer). A Laravel migration is created to implement composite indexes on (subject_type, subject_id) and (causer_type, causer_id) columns, with environment and dependency issues noted for resolution.

Changes

Cohort / File(s)	Summary
Audit Documentation AUDIT-DATABASE.md	New audit file documenting database query optimization findings, including missing indexes on activities table, environment/dependency conflicts, and flagged files requiring further N+1 query analysis.
Database Migration database/migrations/2024_05_21_100000_add_indexes_to_activities_table.php	Migration creating composite indexes on activities table: subject_index (subject_type, subject_id) and causer_index (causer_type, causer_id), with corresponding rollback logic.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

🐰 Hop, hop, through the database we go,
Indexes composing a faster flow,
Polymorphic relations take their place,
With subject and causer keeping pace,
Query performance—now that's a treat! 🌟

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change—a database query optimization audit with supporting migration and documentation.
Linked Issues check	✅ Passed	The PR addresses issue #48 by creating AUDIT-DATABASE.md documenting audit findings and adding database indexes to improve query performance.
Out of Scope Changes check	✅ Passed	All changes are directly related to the database optimization audit objective: migration for indexes, audit documentation, and dependency conflict notes.

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch audit/database-optimization-3219461574347340944

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