upskill-event-manager/TRANSITION-GUIDE.md
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# HVAC Community Events - Transition Guide
## Quick Start
To transition to the new architecture:
1. **Backup current plugin**
```bash
cp hvac-community-events.php hvac-community-events.php.backup
```
2. **Replace main plugin file**
```bash
cp hvac-community-events-new.php hvac-community-events.php
```
3. **Test the plugin**
- Deactivate plugin
- Activate plugin
- Check for any errors
- Verify pages are working
## What Changed
### Old Architecture
- Single 1000+ line `hvac-community-events.php` file
- All page definitions hardcoded in activation function
- Mixed responsibilities (pages, roles, redirects, etc.)
### New Architecture
- Clean 30-line main plugin file
- Modular class-based structure
- Separation of concerns
- Easy to maintain and extend
## Key Components
1. **Main Plugin File** (`hvac-community-events.php`)
- Only bootstraps the plugin
- Loads the main plugin class
2. **Plugin Class** (`includes/class-hvac-plugin.php`)
- Central orchestrator
- Manages all components
- Handles initialization
3. **Page Manager** (`includes/class-hvac-page-manager.php`)
- Creates and manages all pages
- Centralized page definitions
- Easy to add/modify pages
4. **Template Loader** (`includes/class-hvac-template-loader.php`)
- WordPress-compliant template loading
- Theme override support
- Body class management
5. **Content Files** (`templates/content/`)
- Gutenberg block content for status pages
- Easy to edit without touching code
## Compatibility
The new architecture maintains 100% backward compatibility:
- All existing functionality preserved
- Legacy redirects still work
- All includes are loaded
- AJAX handlers intact
- Same activation/deactivation behavior
## Benefits
1. **Maintainability**: Each file has a single purpose
2. **Scalability**: Easy to add new features
3. **Testability**: Components can be tested independently
4. **Performance**: Only loads what's needed
5. **Standards**: Follows WordPress best practices
## Troubleshooting
If you encounter issues:
1. **Check PHP error log**
```bash
tail -f /path/to/error.log
```
2. **Verify file permissions**
```bash
chmod -R 755 hvac-community-events
```
3. **Clear cache**
- WordPress cache
- Browser cache
- CDN cache (if applicable)
4. **Rollback if needed**
```bash
cp hvac-community-events.php.backup hvac-community-events.php
```
## Next Steps
After successful transition:
1. Delete backup file (once confirmed working)
2. Update any custom code to use new classes
3. Train team on new structure
4. Document any customizations
## Support
For questions or issues:
- Check `/docs/REFACTORING-GUIDE.md`
- Review `/docs/CUSTOMIZATION-EXAMPLES.md`
- Contact development team