Rafael Corral discusses changes between Joomla 1.5 and 1.7 for developers, including an overhauled access control list (ACL), expanded MVC framework, new centralized categories API, and abstracted database. The best way to learn is hands-on by using resources like the documentation and GitHub code examples. Developers should keep up with platform changes and plan extensions around Joomla's release cycles.

1. Joomla 1.7 developmentRafael Corral, Lead Developer 'corePHP'

2. Hi!Lead Developer @ 'corePHP’Been developing extensions since Joomla 1.0Creator of WordPress for JoomlaCreator of JphotoCreator of jomCDN

3. DiscoveryWho is a developer?Hopefully everyone here…Who has developed for 1.5?Who has developed for 1.7?

4. 1.5MVCAPIThe Joomla API and the CMS where one

5. 1.7…yeap, not worth talking about 1.6MVC is expandedOverhauled ACLAbstracting databaseNew centralized categories APIBig focus on developersConsistency in the codeCMS and Framework are two separate things

6. 1.5 to 1.7 major differencesJParameter deprecated, use JFormJError deprecated, use JLog or throw an exceptionLanguage file formatting and .sys filesACLEvent name changesDatabase structure changeshttp://docs.joomla.org/Adapting_a_Joomla_1.5_extension_to_Joomla_1.6

7. Best way to learnHands on :-)http://docs.joomla.org/Developing_a_Model-View-Controller_%28MVC%29_Component_for_Joomla!1.6https://github.com/rcorral/joomla-latest-component-example

8. TipsPlan major releases of your extensions with Joomla’s development cycleUse the HelloWorld component exampleKeep up on platform changeshttps://github.com/joomla/joomla-platformRead the API and go through the code!http://api.joomla.org/li_Joomla-Platform.html

9. Thank you!Questions?Twitter: @rcorralEmail: rafael@corephp.comGitHub: rcorralSlideshare: rxcorral

10. Referenceshttp://docs.joomla.org/Developerhttp://docs.joomla.org/Adapting_a_Joomla_1.5_extension_to_Joomla_1.6http://developer.joomla.org/getting-started.htmlhttp://docs.joomla.org/1.7.0_List_of_API_Changeshttp://api.joomla.org/li_Joomla-Platform.htmlUnderstand ACL http://www.slideshare.net/jen4web/joomla-1617-access-control-lists-aclhttp://docs.joomla.org/ACL_Tutorial_for_Joomla_1.7