Semantic TYPO3

Semantic TYPO3Develop Extensions with Semantic Web in MindJochen Rau @ T3CON11SFJune 11, 2011

(c) by Benjamin Nowack, Attribution 3.0 Unported (CC BY 3.0)

Concepts (c) by Benjamin Nowack, Attribution 3.0 Unported (CC BY 3.0)

Implementations (c) by Benjamin Nowack, Attribution 3.0 Unported (CC BY 3.0)

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No Rocket Science

Lets make some assertions about meJochens is a Person.Jochens age is 40.Jochens name is Jochen Rau.Jochen likes TYPO3 and Wine.Jochen lives in Massachusetts.

Lets make some assertions about meJochens is a Person.Jochens age is 40.Jochens name is Jochen Rau.Jochen likes TYPO3 and Wine.Jochen lives in Massachusetts. Subject Predicate Object

Lets make some assertions about meJochens is a Person.Jochens age is 40.Jochens name is Jochen Rau.Jochen likes TYPO3 and Wine.Jochen lives in Massachusetts. Subject Predicate Object Triple

Lets make some assertions about me Jochen 40 age name Jochen Rau is a likes TYPO3 likes lives inJochens is a Person. PersonJochens age is 40. Wine MassachusettsJochens name is Jochen Rau.Jochen likes TYPO3 and Wine.Jochen lives in Massachusetts.

Lets make some assertions about me Jochen 40 age name Jochen Rau is a likes TYPO3 likes lives inJochens is a Person. PersonJochens age is 40. Wine MassachusettsJochens name is Jochen Rau.Jochen likes TYPO3 and Wine. TYPO3Jochen lives in Massachusetts. license GNU General Public License description platform TYPO3 is a free and open source content management system as well as a Model–view– controller (MVC) Web PHP Application Development framework written in PHP.

Lets make some assertions about me Jochen 40 age name Jochen Rau is a likes TYPO3 likes GNU General license lives in Public LicenseJochens is a Person. Person descriptionJochens age is 40. Wine MassachusettsJochens name is Jochen Rau. platform TYPO3 is a free and open source contentJochen likes TYPO3 and Wine. management system asJochen lives in Massachusetts. well as a Model–view– controller (MVC) Web PHP Application Development framework written in PHP.

Unique Names for Resources Jochen knows Sebastian likes Paris

Unique Names for Resources <http://typoplanet.de/resource/Jochen> <http://xmlns.com/foaf/0.1/knows> <http://sebastian.kurfuerst.eu/> <http://xmlns.com/foaf/0.1/likes> <http://en.wikipedia.org/wiki/Paris_(2008_film)><http://typoplanet.de/resource/Jochen><http://typoplanet.de/resource/hg132k4jhjh1234t><urn:uuid:67ecc3bd-07e2-44f4-a788-597bf9949f0c><tel:+1-617-555-7332><mailto:jochen.rau@typoplanet.de>

Unique Names for Resources <http://typoplanet.de/resource/Jochen> <http://xmlns.com/foaf/0.1/knows> <http://sebastian.kurfuerst.eu/> <http://sebastian.kurfuerst.eu/> <http://xmlns.com/foaf/0.1/likes> <http://en.wikipedia.org/wiki/Paris_(2008_film)>

Turtle Serialization of an RDF Graph<http://example.com/JR> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://xmlns.com/foaf/0.1/Person> .<http://example.com/JR> <http://xmlns.com/foaf/0.1/age> "40" .<http://example.com/JR> <http://xmlns.com/foaf/0.1/name> "Jochen Rau" .<http://example.com/JR> <http://xmlns.com/foaf/0.1/interest> <http://dbpedia.org/resource/TYPO3> .<http://example.com/JR> <http://xmlns.com/foaf/0.1/interest> <http://dbpedia.org/resource/Wine> .<http://example.com/JR> <http://example.com/livesIn> <http://data.nytimes.com/Massachusetts> .

Turtle Serialization of an RDF Graph@prefix ex: <http://example.org/> .@prefix dbp: <http://dbpedia.org/resource/> .@prefix nyt: <http://data.nytimes.com/> .@prefix foaf: <http://xmlns.com/foaf/0.1/> .ex:JR a foaf:Person .ex:JR foaf:age "40" .ex:JR foaf:name "Jochen Rau" .ex:JR foaf:interest dbp:TYPO3 .ex:JR foaf:interest dbp:Wine .ex:JR ex:livesIn nyt:Massachusetts .

Turtle Syntactic sugar@prefix ex: <http://example.org/> .@prefix dbp: <http://dbpedia.org/resource/> .@prefix nyt: <http://data.nytimes.com/> .@prefix foaf: <http://xmlns.com/foaf/0.1/> .ex:JR a foaf:Person ; ex:age "40" ; ex:name "Jochen Rau" ; ex:likes dbp:TYPO3 ; ex:likes dbp:Wine ; ex:livesIn nyt:Massachusetts .

Turtle And even more syntactic sugar@prefix ex: <http://example.org/> .@prefix dbp: <http://dbpedia.org/resource/> .@prefix nyt: <http://data.nytimes.com/> .@prefix foaf: <http://xmlns.com/foaf/0.1/> .ex:JR a foaf:Person ; ex:age "40" ; ex:name "Jochen Rau" ; ex:likes dbp:TYPO3 , dbp:Wine ; ex:livesIn nyt:Massachusetts .

RDF at a Glance Simple, ubiquitous way of modeling data Main concepts Triples of subject, predicate, and object Unique names for resources Objects can also be literal values (with data type or language) Performant data stores (e.g. Virtuoso, AllegroGraph, BigOWLIM) Existing frameworks with rich APIs (e.g. JENA, Sesame, Erfurt) Billions of triples as Open Data available (e.g. Wikipedia, MusicBrainz) Many di erent serialization formats (e.g. RDF/XML, Turtle, N3) Makes data migration much easier

Description Logic and Rules OWL and RIF What? Why? Knowledge is spread all over the system: Domain model, database scheme, TS con gurartion, FlexForm, TCA, documentation, Templates ... In di erent Formats: SQL, TypoScript, XML, PHP, HTML ... Using inconsistent terminology: "Template" in TYPO3? So, what to do? data and metadata in the same data structure (RDF) use well de ned languages to describe (meta)data (OWL RIF)

Description Logic and Rules OWL and RIF Knublauch, Holger. KBeans Speciﬁcation: Semantic Transparency for Components and Domain Models. Technical Report FAW-TR-01001, FAW Ulm, 2001.

RDF in HTMLThree di erent standards to markup your HTML code Microformats Microdata (part of HTML5 spec) RDFa ("RDF for attributes", W3C Recommendation)A subset of RDFMakes web pages machine readable by your favorite search engine

RDF in HTML RDFa<div> <p> Alice Birpemswick </p> <p> Email: <a href="mailto:alice@example.com">alice@example.com</a> </p> <p> Phone: <a href="tel:+1-617-555-7332">+1 617.555.7332</a> </p></div>

RDF in HTML RDFa<div prefix="foaf: http://xmlns.com/foaf/0.1/" about="http://example.com/resource/alice"typeof="Person"> <p property="foaf:name"> Alice Birpemswick </p> <p> Email: <a rel="foaf:mbox" href="mailto:alice@example.com">alice@example.com</a> </p> <p> Phone: <a rel="foaf:phone" href="tel:+1-617-555-7332">+1 617.555.7332</a> </p></div>

RDF in HTML RDFa<div prefix="foaf: http://xmlns.com/foaf/0.1/" about="http://example.com/resource/alice"typeof="Person"> <p property="foaf:name"> Alice Birpemswick </p> <p> Email: <a rel="foaf:mbox" href="mailto:alice@example.com">alice@example.com</a> </p> <p> Phone: <a rel="foaf:phone" href="tel:+1-617-555-7332">+1 617.555.7332</a> </p></div> http://example.com/resource/alice

RDF in HTML RDFa<div prefix="foaf: http://xmlns.com/foaf/0.1/" about="http://example.com/alice#me" rel="knows"> <ul> <li typeof="Person"> <a rel="foaf:homepage" href="http://example.com/bob" property="foaf:name">Bob</a> </li> <li typeof="Person" > <a rel="foaf:homepage" href="http://example.com/eve" property="foaf:name">Eve</a> </li> <li typeof="Person" > <a rel="foaf:homepage" href="http://example.com/manu" property="foaf:name">Manu</a> </li> </ul></div>

RDF in HTML GoodRelations Vocabulary

RDF in HTML Enable RDFa in TYPO3# Set the doctype and add common namespacesconfig.doctype = xhtml+rdfa_10config.namespaces { xml = http://www.w3.org/XML/1998/namespace xmlns = http://www.w3.org/2000/xmlns/ xsd = http://www.w3.org/2001/XMLSchema# xhv = http://www.w3.org/1999/xhtml/vocab# rdfa = http://www.w3.org/ns/rdfa# rdf = http://www.w3.org/1999/02/22-rdf-syntax-ns# rdfs = http://www.w3.org/2000/01/rdf-schema# owl = http://www.w3.org/2002/07/owl# rif = http://www.w3.org/2007/rif#[...] dbo = http://dbpedia.org/ontology/ foaf = http://xmlns.com/foaf/0.1/ geo = http://www.w3.org/2003/01/geo/wgs84_pos# gr = http://purl.org/goodrelations/v1# cal = http://www.w3.org/2002/12/cal/ical# og = http://ogp.me/ns# v = http://rdf.data-vocabulary.org/# bibo = http://purl.org/ontology/bibo/}

EXT:semantic SPARQL Client

Linked Data Cloud

Querying a Graph SPARQLW3C RecommendationGraph pattern matchingSimilar to SQL and Turtle

Querying a Graph Filter, Functions, Ordering ...

Querying a Graph Custom Functions

Querying a Graph Property Paths

Querying a Graph Property Paths and Inference

Querying a Graph Subqueries

EXT:semantic SPARQL Query Administration Default namespaces (RDFa default pro le) Syntax highlighting Code indentation Content Manager

EXT:semantic SPARQL Query Administration Default namespaces (RDFa default pro le) Syntax highlighting Code indentation Frontend and backend Content Manager

EXT:semantic Custom Content Elements Default layouts and custom HTML template code Support for pagination (dynamic query re-writing)

EXT:semantic Custom Content Elements Frontend Backend

EXT:semantic Custom Content Elements Query results variables are bound to the template variables and are used as labels in a human readable form

Developer Query Object Modelclass Tx_BlogExample_Domain_Repository_PostRepository extends Tx_Extbase_Persistence_Repository { public function findByTagAndBlog($tag, Tx_BlogExample_Domain_Model_Blog $blog, $limit = 20) { $query = $this->createQuery(); return $query->matching( $query->logicalAnd( $query->equals(blog, $blog), $query->equals(tags.name, $tag) ) ) ->setOrderings(array(date => Tx_Extbase_Persistence_QueryInterface::ORDER_DESCENDING)) ->setLimit((integer)$limit) ->execute(); } public function findNext(Tx_BlogExample_Domain_Model_Post $post) { $query = $this->createQuery(); $posts = $query->matching($query->greaterThan(date, $post->getDate())) ->setOrderings(array(date => Tx_Extbase_Persistence_QueryInterface::ORDER_DESCENDING)) ->execute(); return $posts->getFirst(); }}

Semantic TYPO3 Current Projects SPARQL Client (EXT:semantic, Jochen Rau) RDF/RDFa support (Sebastian Kurfürst, masters thesis) CMS ontology (Andreas Wolf, GSoC) Taxonomy and Categories (EXT:taxonomy, Fabien Udriot) Semantic persistence backend (EXT:semantic, Thomas Maroschik) Globally unique identi ers in v4 (EXT:identity, Thomas Maroschik) Tagging support for Editors (v4: RTE plugin, v5: Aloha)

Semantic TYPO3 RoadmapImprove usability of SPARQL ClientTransform Domain Models into RDF(a)Transform OWL Ontologies into PHP Code and MetadataExtbase Query Object Model -> SPARQL Query

Semantic TYPO3 Vision

Thanks! Twitter @jocrau Email jochen.rau@typoplanet.de Blog http://blog.typoplanet.de Talk Lunch

Semantic TYPO3

by Jochen Rau on Jun 11, 2011

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