def get_vocabulary(self):
from model.vocabulary import Vocabulary
result = self.g.query('''PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
PREFIX dct: <http://purl.org/dc/terms/>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT DISTINCT ?s ?title ?description ?creator ?created ?modified ?version ?hasTopConcept ?topConceptLabel
WHERE {{
{{
?s a skos:ConceptScheme .
?s skos:prefLabel ?title .
}}
UNION
{{
?s a skos:ConceptScheme .
?s dct:title ?title .
MINUS {{ ?s skos:prefLabel ?prefLabel }}
}}
UNION
{{
?s a skos:ConceptScheme .
?s rdfs:label ?title .
MINUS {{ ?s skos:prefLabel ?prefLabel }}
MINUS {{ ?s dct:title ?prefLabel }}
}}
OPTIONAL {{ ?s dct:description ?description }}
OPTIONAL {{ ?s dct:creator ?creator }}
OPTIONAL {{ ?s dct:created ?created }}
OPTIONAL {{ ?s dct:modified ?modified }}
OPTIONAL {{ ?s owl:versionInfo ?version }}
OPTIONAL {{
?s skos:hasTopConcept ?hasTopConcept .
?hasTopConcept skos:prefLabel ?topConceptLabel .
}}
}}''')
title = None
description = None
creator = None
created = None
modified = None
version = None
topConcepts = []
for r in result:
self.uri = str(r['s'])
if title is None:
title = r['title']
if description is None:
description = r['description']
if creator is None:
creator = r['creator']
if created is None:
created = r['created']
if modified is None:
modified = r['modified']
if version is None:
version = r['version']
if r['hasTopConcept'] and r['topConceptLabel'] is not None:
topConcepts.append((r['hasTopConcept'], r['topConceptLabel']))
v = Vocabulary(
self.vocab_id,
self.uri,
title,
description,
creator,
created,
modified,
version,
topConcepts
)
# sort the top concepts by prefLabel
v.hasTopConcepts = topConcepts
if v.hasTopConcepts:
v.hasTopConcepts.sort(key=lambda tup: tup[1])
v.conceptHierarchy = self.get_concept_hierarchy()
return v
