def active_properties(request, dt_name):
dt_name = urllib.parse.unquote(dt_name)
# get class
q = request.GET.get('q', None)
if not q:
raise Http404
q = urllib.parse.unquote(q)
# try to locate in the repository first
p_from_db = VocabularyProperty.objects.filter(uri=q)
if p_from_db:
return render(request, "builder_advanced/docs/property.html", {"property": p_from_db[0]})
# get endpoint
endpoint = get_endpoint_from_dt_name(dt_name)
if not endpoint:
raise Http404
query = 'SELECT ?domain ?range WHERE { ?a <' + q + '> ?b . ?a a ?domain . optional{?b a ?range .} } limit 1'
# get json result
result = sparql_query_json(endpoint, query)
# check for errors
if result.status_code >= 400:
return HttpResponse(result.content, status=result.status_code)
# create the class object
res = json.loads(result.content.decode('utf-8'))
if len(res['results']['bindings']) == 0:
return HttpResponse('<p>Docs not found.</p>')
b = res['results']['bindings'][0]
if 'range' in b:
p_range = b['range']['value']
else:
p_range = 'http://www.w3.org/2000/01/rdf-schema#Literal'
property_object = {"uri": q, "domain": b['domain']['value'], "range": p_range}
# return class template
return render(request, "builder_advanced/docs/property.html", {"property": property_object, "from_json": True})
def active_classes(request, dt_name):
dt_name = urllib.parse.unquote(dt_name)
# get class
q = request.GET.get('q', None)
if not q:
raise Http404
q = urllib.parse.unquote(q)
# try to locate in the repository first
c_from_db = VocabularyClass.objects.filter(uri=q)
if c_from_db:
return render(request, "builder_advanced/docs/class.html", {"class": c_from_db[0]})
# get endpoint
endpoint = get_endpoint_from_dt_name(dt_name)
if not endpoint:
raise Http404
property_limit = 10
query = 'SELECT DISTINCT ?property WHERE { ?x a <' + q + '>. ?x ?property ?y .} limit ' + str(property_limit)
# get json result
result = sparql_query_json(endpoint, query)
# check for errors
if result.status_code >= 400:
return HttpResponse(result.content, status=result.status_code)
# create the class object
res = json.loads(result.content.decode('utf-8'))
properties = []
bindings = res['results']['bindings']
for b in bindings:
properties.append(b['property']['value'])
class_object = {"uri": q, "properties": properties}
# return class template
options = {"class": class_object, "from_json": True, "property_limit": property_limit}
return render(request, "builder_advanced/docs/class.html", options)