Rustelo/migrations/migration_files.md

📊 **Migration File Comparison**

### **`001_initial_setup.sql` (Comprehensive)**
This is the **full-featured, production-ready** migration that includes:

**🔐 Authentication & Authorization Tables:**
- `users` - Core user accounts with complete profile information
- `user_roles` - Role-based access control (RBAC)
- `oauth_accounts` - External OAuth provider integrations
- `sessions` - Comprehensive session management
- `tokens` - Password reset, email verification tokens
- `permissions` - Fine-grained permission system
- `role_permissions` - Role-to-permission mappings
- `user_audit_log` - Complete audit trail

**📝 Content Management:**
- `page_contents` - Full-featured content management system

**🎯 Advanced Features:**
- Complete PostgreSQL functions and triggers
- Full-text search capabilities
- Comprehensive indexing strategy
- Default admin user and permissions
- Sample content data

### **`001_initial_setup_postgres.sql` (Basic)**
This is a **simplified, basic version** with only:

**🔐 Basic Authentication:**
- `users` - Basic user accounts
- `user_sessions` - Simple session management
- `user_roles` - Basic role system
- `user_role_assignments` - User-role relationships

**📝 Basic Content:**
- `content` - Simple content management

### **`001_initial_setup_sqlite.sql` (Basic)**
Similar to PostgreSQL version but **adapted for SQLite:**
- Same basic table structure
- SQLite-specific data types (TEXT instead of UUID)
- SQLite-specific syntax adaptations
- No advanced PostgreSQL features

## 🤔 **Why This Structure Exists?**

### **1. Flexibility for Different Use Cases**
- **Full Version**: Complete application with all features
- **Basic Versions**: Minimal setup for simple projects or learning

### **2. Database-Specific Optimizations**
- **PostgreSQL**: Leverages advanced features (UUID, JSONB, functions)
- **SQLite**: Optimized for embedded/lightweight usage

### **3. Migration Strategy**
The system likely uses:
```rust
// Pseudocode for migration selection
match database_type {
    PostgreSQL => {
        if features.includes("full_auth") {
            run_migration("001_initial_setup.sql")
        } else {
            run_migration("001_initial_setup_postgres.sql")
        }
    }
    SQLite => run_migration("001_initial_setup_sqlite.sql")
}
```

## 📋 **Table Count Comparison**

### **Full Version (`001_initial_setup.sql`)**
- ✅ `users` (comprehensive with profile fields)
- ✅ `user_roles` (RBAC)
- ✅ `oauth_accounts` (OAuth integration)
- ✅ `sessions` (detailed session management)
- ✅ `tokens` (password reset, verification)
- ✅ `permissions` (fine-grained permissions)
- ✅ `role_permissions` (role-permission mapping)
- ✅ `user_audit_log` (audit trail)
- ✅ `page_contents` (full CMS)

**Total: 9 tables** + comprehensive functions, triggers, and sample data

### **Basic Versions**
- ✅ `users` (basic fields only)
- ✅ `user_sessions` (simple sessions)
- ✅ `content` (basic content)
- ✅ `user_roles` (basic roles)
- ✅ `user_role_assignments` (role assignments)

**Total: 5 tables** + basic triggers

## 💡 **Recommendation**

For the Rustelo project, I recommend:

1. **Use the full version** (`001_initial_setup.sql`) for production applications
2. **Use basic versions** for prototyping or learning
3. **Consider creating a configuration option** to choose migration complexity:

```bash
# Use full-featured migration
./scripts/db.sh setup create --features full

# Use basic migration
./scripts/db.sh setup create --features basic
```

The full version provides enterprise-grade features like audit logging, OAuth integration, and comprehensive security, while the basic versions are perfect for getting started quickly.