Slides from the presentation (in Dutch) I gave on the Dutch JoomlaDays 12+13 May 2023. Generate Joomla extensions with Model Driven Engineering, that is: create a model to define an extension (component, module, plugin) and generate the concrete extension from the model. In that way one model can be output to multiple versions of Joomla, or to a different platform (Drupal, Symfony, Laravel) or even to a different stack (non-PHP).

1. Extension Generator
Joomladagen 2023
Herman Peeren
Joomla Extensions with Model Driven Engineering

2. Joomla is like a pizza...

3. You can build any application on top of Joomla.

4. Simple applications can be scaffolded.

5. Core Joomla CMS is mostly managing 1 entity.

6. More complex applications have more entities...

7. and relations between those entities (ERD).

8. Hot air balloons planning.

9. With one-to many relations.

10. Sometimes subforms can be a solution.

11. I’ve used Doctrine ORM in several Joomla applications.

12. I’ve used Doctrine ORM in several applications.

13. Custom applications have to be migrated.

14. Model Driven Engineering (MDE) to the rescue.

15. AST contains all the data of the model.

16. JooMDD is MDE (a.k.a. MDD).

17. Model is written in a DSL: eJSL.

18. I’ve ported JooMDD to MPS: projectional editting.

19. And finally to Extension Generator (a Joomla component).

20. Example in JooMDD: conference.

21. Model (project) in 3 parts: data, interaction, extensions.

22. Generator is mostly mapping of AST to (Twig)templates.

23. Work in progress: editing generators within Extengen!

24. Modelling language in Extengen is: (nested) forms.

25. Work in progress: editing project forms within Extengen!

26. Version 0.8: (plain) backend of component is generated.

27. Version 0.8: (plain) backend of component is generated.

28. Roadmap to 1.0.

29. Roadmap to 1.0

30. … and beyond.

31. Automatic translation (should be in context).

32. Freely available. Support on subscription base.

33. Comparison with CC & JCB.

34. When MDE useful?

35. Joomla 4 components easy to make with this flexible tool.
● eenvoudig Joomla 4 componenten maken.
● abstractie: scheiding data / interactie / component
● aanpasbare generatoren
● aanpasbaar wàt je modelleert (met forms)
● upgraden van extensies naar nieuwere Joomla-versie geen probleem
● degelijke theoretische basis

36. Pizza with Fun, without the bugs!

37. Info
● herman@yepr.nl
● site will be at extengen.yepr.nl (with a mailinglist to keep you informed)
● repo will be: github.com/HermanPeeren/Extengen