GAPI RDF ORM example

gapi-rdf.example.coffee

  rdf = require('../..')
  ORM = rdf.ORM

  ORM.waitForLoad () ->
    person = ORM.newResource('http://example.com/john#me', 'foaf', 'Person')
    person.foaf.name = 'John Doe'
    person.foaf.homepage = 'http://example.com/john/blog'
    person.rdfs.label = 'john\'s label'

    otherone = ORM.newResource('http://example.com/jane#me', 'foaf', 'Person')
    otherone.foaf.name = 'Jane Doe'
    otherone.foaf.homepage = 'http://example.com/jane/blog'
    otherone.rdfs.label = 'jane\'s label'

    anotherone = ORM.newResource('http://example.com/jack#me', 'foaf', 'Person')

    person.foaf.knows = otherone
    otherone.foaf.knows = person
    person.foaf.knows = anotherone

    console.log person.toString()
    console.log otherone.toString()
    console.log anotherone.toString()

    console.log "John knows "+person.foaf.knows
    console.log "Jane knows "+otherone.foaf.knows
    console.log "Jack knows "+(anotherone.foaf.knows || 'no one')

###
Outputs:

<http://example.com/john#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> "http://xmlns.com/foaf/0.1/Person" .
<http://example.com/john#me> <http://xmlns.com/foaf/0.1/name> "John Doe" .
<http://example.com/john#me> <http://xmlns.com/foaf/0.1/homepage> "http://example.com/john/blog" .
<http://example.com/john#me> <http://www.w3.org/2000/01/rdf-schema#label> "john's label" .
<http://example.com/john#me> <http://xmlns.com/foaf/0.1/knows> <http://example.com/jane#me> .
<http://example.com/john#me> <http://xmlns.com/foaf/0.1/knows> <http://example.com/jack#me> .

<http://example.com/jane#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> "http://xmlns.com/foaf/0.1/Person" .
<http://example.com/jane#me> <http://xmlns.com/foaf/0.1/name> "Jane Doe" .
<http://example.com/jane#me> <http://xmlns.com/foaf/0.1/homepage> "http://example.com/jane/blog" .
<http://example.com/jane#me> <http://www.w3.org/2000/01/rdf-schema#label> "jane's label" .
<http://example.com/jane#me> <http://xmlns.com/foaf/0.1/knows> <http://example.com/john#me> .

<http://example.com/jack#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> "http://xmlns.com/foaf/0.1/Person" .

John knows http://example.com/jane#me,http://example.com/jack#me
Jane knows http://example.com/john#me
Jack knows no one
###

TODO:

• better assignment typing (currently works only assigning of other resource. otherwise it assigns literal of object's toString())
• domain/range, cardinality and type constraining
• binding resource to a store with auto-storing when the resource is updated
• blank nodes
• allow colon notation for namespace_alias:name (foaf:name, rdf:type)
• instantiate Resource from provided graph
• resource lazy loading