rspade_system/app/RSpade/Core/Database/CLAUDE.md

Database System Documentation

Migration Policy

• Forward-only migrations - No rollbacks, no down() methods
• Use migration snapshots for development safety (migrate:begin/commit/rollback)
• All migrations must be created via artisan - Manual creation is blocked by whitelist
  • Use php artisan make:migration:safe to create whitelisted migrations
• Sequential execution only - No --path option allowed
• Fail on errors - No fallback to old schemas, migrations must succeed or fail loudly

Database Rules

• No mass assignment: All fields assigned explicitly
• No eager loading: ALL eager loading methods throw exceptions - use explicit queries for relationships
  • Note: Premature optimization is the root of all evil. When you have thousands of concurrent users in production and N+1 queries become a real bottleneck, you'll be motivated enough to remove these restrictions yourself.
• Forward-only migrations: No down() methods

Naming Conventions

• Primary keys: All tables must have id BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY (exception: sessions table uses Laravel's VARCHAR id)
• Foreign keys: Always suffix with _id (e.g., user_id, site_id)
• Boolean columns: Always prefix with is_ (e.g., is_active, is_published)
• Timestamp columns: Always suffix with _at (e.g., created_at, updated_at, deleted_at)
• Integer types: Use BIGINT for all integers, TINYINT(1) for booleans only
• No unsigned integers: All integers should be signed for easier migrations
• UTF-8 encoding: All text columns use UTF-8 (utf8mb4_unicode_ci collation)

Schema Rules

• BIGINT ID required: ALL tables must have id BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY - no exceptions (SIGNED for easier migrations)
• Raw SQL migrations: Use DB::statement() with raw MySQL, not Laravel schema builder
• Restricted commands: Several dangerous commands disabled (migrate:rollback, db:wipe, etc.)
• Required columns enforced: All tables have created_by, updated_by, etc.
• UTF-8 encoding standard: All text columns use UTF-8

Migration Commands

php artisan make:migration:safe     # Create whitelisted migration
php artisan migrate:begin           # Start migration snapshot session
php artisan migrate                 # Run migrations with safety checks
php artisan migrate:commit          # Commit migration changes
php artisan migrate:rollback        # Rollback to snapshot (stays in session)