Summary

Fixes three Doctrine ORM deprecation warnings to prepare for ORM 3.0 compatibility. These are configuration-only changes that maintain backward compatibility while addressing future breaking changes.

Deprecation Warnings Resolved

1. MySQL Version Detection ✅

Problem: Version detection logic for MySQL will change in DBAL 4
Solution: Changed server_version: "8" to server_version: "8.0.31"
Impact: Prevents version detection issues in DBAL 4.0

2. Lazy Ghost Objects ✅

Problem: Not enabling lazy ghost objects is deprecated and will not be supported in Doctrine ORM 3.0
Solution: Added enable_lazy_ghost_objects: true
Impact: Required for ORM 3.0, improves lazy loading performance

3. AttributeDriver Field Reporting ✅

Problem: In ORM 3.0, the AttributeDriver will report fields for the classes where they are declared
Solution: Added report_fields_where_declared: true
Impact: Enables new ORM 3.0 field reporting mode, may reveal invalid mappings

Technical Details

Configuration Changes in config/packages/doctrine.yaml:

doctrine:
    dbal:
        server_version: "8.0.31"  # Was "8"
    orm:
        enable_lazy_ghost_objects: true  # NEW
        entity_managers:
            default:
                report_fields_where_declared: true  # NEW

Benefits

• Future Compatibility: Prepares application for Doctrine ORM 3.0 upgrade
• Performance: Lazy ghost objects provide better memory usage and performance
• Code Quality: New field reporting may uncover mapping configuration issues
• No Breaking Changes: All changes maintain backward compatibility

Risk Assessment

• Risk Level: Very Low
• Configuration Only: No code changes, only YAML configuration
• Backward Compatible: All settings work with current ORM version
• Reversible: Changes can be easily reverted if issues arise

Testing

• PHPStan Analysis: ✅ No errors
• Configuration Syntax: ✅ Valid YAML structure
• Pre-commit Hooks: ✅ All validations pass
• Schema Validation: ✅ Doctrine configuration accepted

Validation

The configuration changes are purely additive and enable recommended settings for ORM 3.0 compatibility:

References

• Doctrine ORM 3.0 Upgrade Guide
• AttributeDriver PR #10455
• Lazy Ghost Objects PR #10837
• DBAL MySQL Version Detection

Closes #11