PHPCR - Standard Content Repository for PHP
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PHPCR is a standard interface for content repositories that provides a common API for working with content stored in different backend systems. It defines interfaces for accessing and modifying a content repository using a tree structure with nodes, properties, queries, versioning and more. PHPCR also includes PHP scripting bindings, allowing applications to interact with repositories directly from PHP code through a standard interface.
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PHPCR - Standard Content Repository for PHP
- 1. PHPCR Standard Interface for Content Repositories
- 4. Same API, multiple repositories ● Jackalope ● Midgard ● Apache Jackrabbit: ● GObject-oriented Java-based repository repository library server, accessible accessible through through WebDAV PHP extension ● Doctrine: pure-PHP ● Python, JavaScript, repository library Java, ... ● github.com/jackalope/jackalope ● github.com/bergie/phpcr-midgard2
- 6. Developers write against a single API Implementations can be chosen based on deployment needs
- 8. Standard: JSR-283 Day Management AG, Switzerland 10-August-2009 Release note Product: Specification for Content Repository for Java(tm) Technology API 2.0 Version: 2.0 Type: Full Release ---------------------------------------------------------------------- This package consists of the following components: 1) Specification documents: spec/ 2) Applicable Licenses: license/ 3) API Source code: src/ 4) pre-built API .jar-file: lib/ 5) generated javadoc: docs/ For questions or comments feel free to use [email protected] Further information about JSR 283 can be found at http://www.jcp.org/en/jsr/detail?id=283
- 9. Content Management Interoperability Services ● JCR-like API using HTTP and Atom (or SOAP) ● Quite complicated, but language-agnostic ● OASIS spec since 2010 ● Good implementations in enterprise document management systems ● Proponents include Microsoft, Nuxeo and Alfresco
- 10. The next version of JCR will also include PHP scripting bindings, i.e. PHPCR
- 11. PHPCR is a collection of interfaces
- 12. ...and API tests bergie@AirDrone:~/Projects/phpcr-midgard2/api-test$ phpunit PHPUnit 3.5.5 by Sebastian Bergmann. I.IIISSSSSSSSS..S.............E..ESSSSSSSSSSSSSSSSSSSSSSSSEE 60 / 552 .........FFSSSSSSSSSSSSS.....E...........................I.. 120 / 552 EEI...EEEE......F..........F..........F..........F.......... 180 / 552 F..........F..........F......................F..........F... 240 / 552 .......F..........F..........F........ES.............S...... 300 / 552 ....F.EE..I...E..II......F..............................I... 360 / 552 ..........E.I..I.........I............................E.E... 420 / 552 ...EE.............................E......................... 480 / 552 ........I....................E.EFEF...I.I.IEI..FEE.FF.FFF..F 540 / 552 S.....SSSSSS Time: 03:53, Memory: 148.50Mb There were 27 errors: 1) PHPCRTestsQueryQueryManagerTest::testGetQuery PHPCRQueryInvalidQueryException: Unsupported 'xpath' language /home/bergie/Projects/phpcr-midgard2/src/Midgard2CR/Query/QueryManager.php:24 /home/bergie/Projects/phpcr-midgard2/src/Midgard2CR/Query/QueryManager.php:62 /home/bergie/Projects/phpcr-midgard2/api- test/suite/tests/06_Query/QueryManagerTest.php:37 ... FAILURES! Tests: 536, Assertions: 2331, Failures: 25, Errors: 27, Incomplete: 18, Skipped: 56.
- 13. Repository capabilities ● Tree access ● XML import and ● Access by UUID export ● Workspaces ● Permissions ● Versioning ● Capability discovery ● Multi-value properties ● Observation ● Queries: SQL2, QOM ● Locking & Transactions
- 14. “Simple stuff should be easy, but complex stuff should still be possible”
- 15. In PHPCR, all content is stored in a tree of nodes Nodes have a name, a type, and a set of properties Nodes can also have child nodes
- 16. Including PHPCR in your application ● PHP 5.3 namespaced code ● Use PSR-0 standard autoloader
- 17. Connecting to a repository: Midgard
- 18. Connecting to a repository: Jackrabbit ● Start Jackrabbit: $ java -jar jackrabbit-standalone-2.2.5.jar ● Connect to repository:
- 19. This is the only repository-specific part
- 20. Working with the tree
- 21. About Node types ● Node types determine what properties and what kind of child nodes a node can have ● Some built-in types: nt:file, nt:folder, nt:resource, nt:unstructured ● Node types can be amended with “mixin” types, like mix:lastModified, mix:language ● Most repositories allow you to define your own types ● Recommendation: Start with nt:unstructured, add more strict definitions when you know your data model
- 22. Queries: SQL2
- 23. Queries: Query Object Model
- 29. Some projects looking at PHPCR
- 30. Some projects looking at PHPCR
- 31. Questions? [email protected] @bergie