Symfony presentation
- 1. Server side technologies Symfony Web Technologies – Prof. Dr. Ulrik Schroeder – WS 2010/111 The slides are licensed under a Creative Commons Attribution 3.0 License Robert Heim, Alexander Friesen, Diego Santos
- 3. Web-Project's Problems Web Technologies3 ● Security ● Complexity, i.e.: ● different output formats (HTML5, XML, JSON, RSS feeds, ...) ● Quality Control ● Portability (OS, Databases, ...) ● Maintainability
- 4. Facing the Server Side Web Technologies4 Solution: Frameworks = Standards, Best Practices, … ! ● Templating ● Abstraction (i.e. Security, Database, Sessions, …) ● Codegeneration ● Proven, tested code ● “Plugin” functionality
- 5. Symfony Web Technologies5 ● PHP Framework ● Founded by Fabien Potencier (2005) ● Best Practices ● (as seen in Ruby on Rails, Zend, etc.) ● Low hosting requirements (PHP, Apache) ● Totally Free & Open Source ● Rich documentation and big community (10.000+)
- 6. Who uses Symfony? Web Technologies6
- 7. Who uses Symfony? Web Technologies7
- 9. Symfony Approach - Overview Web Technologies9 ● Application Model (MODEL) ● Object Relational Mapper ● Modules ● Templates (VIEW) ● Actions (CONTROLLER) ● Customizing
- 10. Application Model Web Technologies10 ● Define the Model (YAML-Format)
- 11. Application Model Web Technologies11 ● Symfony related Glue Code ● Database schema Generating:
- 12. Modules (!= Models) Web Technologies12 Templates: Controller: + executeIndex(...) + executeNew(...) + executeShow(...) + ...
- 13. Modules (!= Models) Web Technologies13 Templates: Controller: + executeIndex(...) + executeNew(...) + executeShow(...) + ...
- 14. Module generation Web Technologies14 ● Model → standard operations: Create, Read, Update, Delete (CRUD) ● Generate ● Controller: communicating to DB, validation, inject data in templates, ... ● Templates: list of objects, forms, … ● Adjust / customize! (but Don't Repeat Yourself (DRY)) → Refactor!
- 15. Customization Web Technologies15 ● Configuration files ● OOP (extending, overwrite, etc.) ● Hook Points ● Plugins (1000+) ● User Management ● Tagging ● Commenting ● … whole applications ...
- 16. What else? Web Technologies16 ● URL Rewriting/Routing ● Fixtures (example data for init-task) ● Backend generation ● Internationalization (i18n), localizing (i10n) ● Convert App to Plugin ● Easy Deployment ● And much more! → www.symfony-project.org
- 17. Pro's and Con's Web Technologies17 ● Pro's: ● Fast development (generation) ● Standards ● Scaleability ● Many Web-Developers know PHP ● Con's: ● Have to learn the framework ● Plugins not always stable ● PHP (refactoring may be a pain in big projects)