Development with TYPO3 5.0

Development with TYPO3 5.0 T3CON07 – Karlsruhe, Germany

Brought your own towel? „ A towel is about the most useful thing an interstellar hitch hiker can carry. ” Douglas Adams Inspiring people to share

Brought your own code? „ The TYPO3 Framework is about the most useful thing a PHP developer can use. ” Robert Lemke Inspiring people to share

Topictext The Guide One manual for all available at http://5-0.dev.typo3.org Inspiring people to share

Overview What happened so far ... System overview Domain Driven Design Model View Controller Voodoo Got Arguments? Components: playing LEGO™ The aspect of security Future and other timing issues Inspiring people to share

What happened so far Inspiring people to share

What happened so far Buy none get two for free. CMS k 1.0 5.0 ewor Fram Inspiring people to share

What happened so far The results so far General design decisions, directory layout, coding guidelines TYPO3 Framework consisting of: Component Manager (supports Dependency Injection) AOP Framework Package Manager (basic functionality) MVC Framework (alpha ...) Property Editor / Validation / Data Types (early dev phase) Inspiring people to share

What happened so far The results even so farer Testing package (contains a PHPUnit testrunner) TYPO3 CR dropped Java implementation – started PHP implementation support JSR-283 instead of JSR-170 Storing and Retrieving nodes works Inspiring people to share

What happened so far The results ﬁnally TypoScript package improved and enhanced syntax: TypoScript 2.0 fully object oriented and consistent self-documenting contains a working TS parser CMS package contains a few TS objects and stdWrap ports (processors) Inspiring people to share

Read before ﬁrst use System Overview Inspiring people to share

System Overview Installation You need PHP6 You don't need Java Current installation options: svn checkout http://5-0.dev.typo3.org/svn/TYPO3/ download the TYPO3 installer Inspiring people to share

System Overview: Installation Installing PHP6 Inspiring people to share

System Overview: Installation Installing TYPO3 Inspiring people to share

System Overview: Installation File structure Inspiring people to share

System Overview Components Components are re-usable, properly encapsulated objects The lifecycle of a component and the combination of active components is managed by the Component Manager All classes in the TYPO3 context are considered as components Components are conﬁgurable Inspiring people to share

System Overview: Components Class ≙ Component Classes are automatically registered as components if they reside in the Classes directory of a package and their name follows the TYPO3 naming conventions Inspiring people to share

System Overview: Components Example Inspiring people to share

System Overview Package Manager Like the good old Extension Manager - but without UI yet Scans the Packages directory for packages Registers classes as components and partly conﬁgures them Will connect to T3PR (TYPO3 Package Repository) Package ﬁle format is just plain .zip Will provide access via Web / CLI and offer Web Services Inspiring people to share

System Overview Model View Controller yes, has it – but what ﬂavor? index.php contains a tiny bootstrap the Framework package handles requests, provides a Front Controller and a Dispatcher which dispatches requests to the Action Controllers more about that later Inspiring people to share

System Overview: Model View Controller index.php Inspiring people to share

Domain Driven Design A domain is the activity or business of the user Domain Driven Design is about focussing on the domain and domain logic accurately mapping the domain concepts to software forming a ubiquitous language among the project members Inspiring people to share

Tower of Babel

Domain Driven Design Ubiquitous language The common vocabulary is an important prerequisite for successful collaboration Use the same words for discussion, modeling, development and documentation Inspiring people to share

Domain Driven Design Phone Book Domain Model Inspiring people to share

Domain Driven Design More phone book actions show phone book entries check if user may delete phone book entry export phone book entries log phone book actions Inspiring people to share

✘ Domain Driven Design More phone book actions show phone book entries not in domain check if user may delete phone book entry the export phone book entries of a phone log phone book actions book Inspiring people to share

Domain Driven Design Layered Architecture View Presentation Controller Application Logic (Service Layer) Domain Domain Model (Domain Layer) Data Mapper (part of Content Repository) Data source Data Source Abstraction Inspiring people to share

Creating a new package

Domain Driven Design PhoneBook DEMO Inspiring people to share

Domain Driven Design PhoneBookEntries DEMO Inspiring people to share

Model View Controller Voodoo Basic recipe Domain Model our phone book – contains the data and knows everything about the domain Action Controller can handle requests for taking actions - show the phone book entries, create new ones etc. View Render the requested output by using the model Inspiring people to share

Model View Controller Voodoo Phone Book Action Controller DEMO Inspiring people to share

Model View Controller Voodoo Simple Phone Book View DEMO Inspiring people to share

Model View Controller Voodoo Template View Inspiring people to share

Model View Controller Voodoo Template View DEMO Inspiring people to share

Model View Controller Voodoo Flexible recipe Domain Model our phone book – contains the data and knows everything about the domain Action Controller can handle requests for taking actions - show the phone book entries, create new ones etc. Views / Widgets Render the requested output by using the model Inspiring people to share

Model View Controller Voodoo Widgets In TYPO3 a Widget is a reusable composite of a Presentation Model (Model) a Widget View (View) a Presentation Controller (Presenter) Widgets serve as re-usable design elements and as part of the user interface Inspiring people to share

Model View Controller Voodoo Widgets The advantages of widgets: Consistent look and feel for standard presentation elements (tables, lists, forms, texts, images, ...) Centralized templating, can be overridden for special cases Automatic support for different request / response types so easy! Inspiring people to share

Model View Controller Voodoo Presentation Controller Action Controller Presentation Controller is conﬁgured with a Presentation Model, receives a request, takes the required prepares the presentation and returns actions and prepares a response the rendered result can handle (web- / CLI- / ...) requests can render the widget handleRequest($request, $response) render() Inspiring people to share

Model View Controller Voodoo Request / Response Request Handler Web Request Web Request Web Request Resolver Handler Builder Inspiring people to share

Model View Controller Voodoo Widget-based Action Controller Implement the widget based Action Controller Inspiring people to share

Model View Controller Voodoo Widget-based Action Controller Show that widget also renders at command line Inspiring people to share

Got arguments? GET and POST arguments are the No.1 source for XSS and injection attacks TYPO3 5.0 takes special care of all user input and HTML output Data Types and Property Editors are used for type conversion at deﬁned stages Controllers only get access to arguments they registered on beforehand Inspiring people to share

Got arguments? Properties & Data Types Work in progress (still hot) We use Property objects instead of string, integer etc. in certain areas Property objects can be combined (XHTML object + Text object + ....) \"Property editors\" are used to transform properties depending on the context Inspiring people to share

Got arguments? Validation A concept for validation is in place but not fully implemented yet We work with \"Data Binding\" More details ... this winter. Inspiring people to share

Got arguments? Registering arguments Practical example how to register POST arguments. Inspiring people to share

Components Inspiring people to share

Components Playing with building blocks The combination of components used is conﬁgurable (orchestration) The less components know about each other the easier it is to reuse them in a variety of contexts Create your own LEGO set by creating cleanly separated, decoupled components! Inspiring people to share

Components Component Dependencies Components seldomly come alone Components depend on other components which depend on other components which ... Inspiring people to share

Components Component Dependencies Components seldomly come alone Components depend on other components which depend on other components which ... Problem: Components explicitly refer to other components: $phoneBookManager = new PhoneBookManager Inspiring people to share

Components Dependency Injection A component doesn't ask for the instance of another component but gets it injected This methodology is referred to as the \"Hollywood Principle\": \"Don't call us, we'll call you\" Enforces loose coupling and high cohesion Makes you a better programmer Inspiring people to share

Components Practical examples for DI Example using ... Constructor Injection Setter Injection Autowiring Inspiring people to share

Aspect Oriented Programming AOP is a programming paradigm complements OOP by separating concerns to improve modularization OOP modularizes concerns: methods, classes, packages AOP addresses cross-cutting concerns Inspiring people to share

Aspect Oriented Programming Cross-cutting concerns Presentation Domain Data source Inspiring people to share

Aspect Oriented Programming Cross-cutting concerns Presentation The concerns live here Domain Data source Inspiring people to share

Aspect Oriented Programming Cross-cutting concerns Phone Book Domain Model Security Logging Inspiring people to share

Aspect Oriented Programming Aspects in action Practical example Inspiring people to share

Beautiful errors Exception handling and error handling is (basically) implemented Special AOP-supported tools for debugging will be available Verbose debug messages and exception handlers Inspiring people to share

Topictext Inspiring people to share

Future and other timing issues We'll switch from a road map to a country map Next steps are: Finish MVC implementation Properties, Data Types, Validation, Data Binding Implement Widgets, GUI and an initial Backend package Continue developing TYPO3 CR Inspiring people to share

For Patrick Gaumond Future and other timing issues Speeeed will be implemented as well Inspiring people to share

Recommended literature Inspiring people to share

Recommended literature Eric Evans: Domain Driven Design Tackling Complexity in the Heart of Software Addison Wesley 2002 Inspiring people to share

Recommended literature Martin Fowler: Patterns of Enterprise Application Architecture Addison Wesley 2002 Inspiring people to share

Recommended literature Jimmy Nilsson: Applying Domain-Driven Design and Patterns Addison Wesley 2006 Inspiring people to share

Links TYPO3 5.0 Subsite http://typo3.org/gimmeﬁve TYPO3 5.0 Development Website http://5-0.dev.typo3.org TYPO3 5.0 Documentation http://5-0.dev.typo3.org/guide Jochen Weiland PHP 6 Hosting http://www.jweiland.net Inspiring people to share

So long and thanks for the ﬁsh Questions Inspiring people to share beer

Development with TYPO3 5.0

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