The content manager loves the tree
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Tree-like structures are omnipresent throughout the web. Whether in the plain URL of a website, as navigation-menu or for board- or chatlogs. Even XML represents a tree-like structure. So why not store data in such a construct? In the Java-World there is the JCR named ContentRepository which stores data in a tree-like structure. The JCR has been ported to PHP as PHPCR. Using the Doctrine-Wrapper PHPCR-ODM it can be integrated into applications without hassle. This talk will show how to effectively persist semi-structured content, dynamic routing or other hierarchically structured data.
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The content manager loves the tree
- 1. THE CONTENT MANAGER LOVES THE TREE MAXIMILIAN BERGHOFF - 13.06.2017 - PHP USERGROUP JUTLAND
- 2. Maximilian Berghoff @ElectricMaxxx github.com/electricmaxxx Maximilian.Berghoff@may ower.de May ower GmbH - Würzburg
- 4. Business Need: Editable text blocks Scenario: Create text blocks Given a content manager When he creates an arbritrary text block Then then the user of the website would see it Scenario: Edit text blocks Given a content manager When he edits text block Then then the user of the website would see the change
- 5. Business Need: Editable text blocks Scenario: Create text blocks Given a content manager When he creates a specific text block And defines a position Then then the user would see it at this position Scenario: Edit text blocks Given a content manager When he edits text block or its position Then then the user would see the in position and content
- 6. POSITION IN EINER APP on a Page Content Menü (Label) on a Page of a speci c URL
- 7. Business Need: Editable text blocks Scenario: Create text blocks Given a content manager When he creates a specific text block And defines a position among the content of the page Then then the user of the website would see it Scenario: Edit text blocks Given a content manager When he moves the text block among the content of a page Then then the user would see the in position and content
- 8. Business Need: Editable text blocks Scenario: Create text blocks Given a content manager When he creates a specific text block And defines a position among the content of the page Then then the user of the website would see it Scenario: Edit text blocks Given a content manager When he moves the text block among the content of a page Then then the user would see the in position and content
- 9. POSITIONING IN THE CONTENT Visual Queue (Ein Block nach dem anderen) Structure
- 10. <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF8"> <title>Tree Example</title> </head> <body> <div class="navigation"> </div> <div class="content"> </div> <div class="footer"></div> </body> </html>
- 14. Business Need: Editable text blocks Scenario: Create text blocks Given a content manager When he creates a specific text block And defines a position as a content path of the page Then then the user of the website would see it Scenario: Edit text blocks Given a content manager When he moves the text block And defines a new content path Then then the user would see the in position and content
- 15. THEORY HIERARCHICAL STRUCTURED DATA IN RDBMS
- 16. ADJACENCY LIST id parent_id name 1 NULL home 2 1 header 3 2 content-block-1 4 2 content-block-2
- 17. INSERT NODE INSERT INTO content (parent_id, name) VALUES (2, contentblock7); id parent_id name 1 NULL home 2 1 header 3 2 content-block-1 4 2 content-block-2 5 2 content-block-7
- 18. MOVE NODE (SUBTREE) UPDATE content set parent_id = 1 where id = 5; id parent_id name 1 NULL home 2 1 header 3 2 content-block-1 4 2 content-block-2 5 1 content-block-7
- 19. PATH ENUMERATION id path name 1 1/ home 2 1/2/ header 3 1/2/3/ content-block-1 4 1/2/4/ content-block-2
- 20. NESTED SET id left right name 1 1 8 home 2 2 7 header 3 3 6 content-block-1 4 4 5 content-block-2
- 21. NESTED SET - ADD id left right name 1 1 12 home 2 2 7 header 3 3 6 content-block-1 4 4 5 content-block-2 5 8 11 main 6 9 10 content-block-3
- 22. NESTED SET - MOVE (DELETE + ADD) id left right name 1 1 12 home 2 2 5 header 3 3 4 content-block-1 4 8 9 content-block-2 5 6 11 main 6 7 10 content-block-3
- 23. CLOSURE TABLE CONTENT TABLE id name 1 home 2 header 3 content-block-1 4 content-block-2
- 24. CLOSURE TABLE MANY-TO-MANY ancestor descendant 1 1 1 2 1 3 1 4 2 2 2 3 2 4 3 3 4 4
- 25. EXPERIMENT LETS TRY TO USE DIRECTORIES
- 32. OPERATIONS create a node (Folder, File) Update Properties - i.e. the content move a node delete a node get a node
- 33. CONSTRAINTS a node has a name a node has a path a node has properties - i.e. content a node can have children
- 34. UNIVERSAL INTERFACE JCR - CONTENT REPOSITORY FOR JAVA WORLD Describes De nition of Workspace, Session, Node and Properties Current Spec: 283 Persisting content as in XML
- 35. CONTENT REPOSITORY Database for digital content Management to search/query, add, move, delete content hierarchical structure Import/Export Versioning Locking
- 36. WHAT ABOUT PHP?
- 37. PHPCR Porting of JCR into PHP Interface Implementations: Jackrabit Doctrine-DBAL
- 38. WORKSPACE CR consists of one or more workspaces Each Workspace contains an acyclic graph (tree) of items Edges de ne parent child relation
- 39. SESSION Connection by a user through credentials to a speci c workspace Possibility for Access Control for that user Contains a complete Representation of the workspace
- 40. $factoryclass = 'JackalopeRepositoryFactoryJackrabbit'; $parameters = [ 'jackalope.jackrabbit_uri' => ' ' ]; $factory = new $factoryclass(); $repository = $factory>getRepository($parameters); $credentials = new PHPCRSimpleCredentials('admin', 'admin'); $session = $repository>login($credentials, 'default'); http://localhost:8080
- 41. $factoryclass = 'JackalopeRepositoryFactoryJackrabbit'; $parameters = [ 'jackalope.jackrabbit_uri' => ' ' ]; $factory = new $factoryclass(); $repository = $factory>getRepository($parameters); $credentials = new PHPCRSimpleCredentials('admin', 'admin'); $session = $repository>login($credentials, 'default'); http://localhost:8080
- 42. $factoryclass = 'JackalopeRepositoryFactoryJackrabbit'; $parameters = [ 'jackalope.jackrabbit_uri' => ' ' ]; $factory = new $factoryclass(); $repository = $factory>getRepository($parameters); $credentials = new PHPCRSimpleCredentials('admin', 'admin'); $session = $repository>login($credentials, 'default'); http://localhost:8080
- 43. $factoryclass = 'JackalopeRepositoryFactoryJackrabbit'; $parameters = [ 'jackalope.jackrabbit_uri' => ' ' ]; $factory = new $factoryclass(); $repository = $factory>getRepository($parameters); $credentials = new PHPCRSimpleCredentials('admin', 'admin'); $session = $repository>login($credentials, 'default'); http://localhost:8080
- 44. $root = $session>getRootNode(); $node = $root>addNode('test', 'nt:unstructured'); $node>setProperty('prop', 'value'); $session>save(); $node = $session>getNode('/test'); echo $node>getPropertyValue('prop'); // outputs "value"
- 45. $root = $session>getRootNode(); $node = $root>addNode('test', 'nt:unstructured'); $node>setProperty('prop', 'value'); $session>save(); $node = $session>getNode('/test'); echo $node>getPropertyValue('prop'); // outputs "value"
- 46. $root = $session>getRootNode(); $node = $root>addNode('test', 'nt:unstructured'); $node>setProperty('prop', 'value'); $session>save(); $node = $session>getNode('/test'); echo $node>getPropertyValue('prop'); // outputs "value"
- 47. $workspace = $session>getWorkspace(); $queryManager = $workspace>getQueryManager(); $sql = "SELECT * FROM [nt:unstructured] WHERE [nt:unstructured].[title] = 'Test' ORDER BY [nt:unstructured].content"; $query = $queryManager>createQuery($sql, 'JCRSQL2'); $query>setLimit(10); // limit number of results to be returned $query>setOffset(1); // set an offset to skip first n results $queryResult = $query>execute(); foreach ($queryResult>getNodes() as $path => $node) { echo $node>getName(); }
- 49. DOCTRINE PHPCR Doctrine Component Doctrine Bundle - For Symfony Integration
- 50. SYMFONY CMF
- 51. WHEN? hierarchical structured data CMS features (content, menu, route) Products and variants
- 52. WHEN NOT? Relational data Lots of references
- 53. CONCLUSION
- 54. QUESTIONS? Ask Now! Twitter: @ElectricMaxxx Mail: Maximilian.Berghoff@may ower.de
- 55. LINKS Website - PHPCR Website - CMF Documentation - PHPCR JCR SPEC 283
- 56. THANK YOU!