def load(request):
if request.method != "POST": return INDEX
form = LoadForm(request.POST)
result = {"load_form":form, "query_form": QueryForm()}
if form.is_valid():
load_type = form.cleaned_data.get("load_type")
rdf_content = form.cleaned_data.get("rdf_content")
if not rdf_content:
messages.add_message(request, messages.ERROR, "Please enter some content!")
return result
try:
storage = RDFStorage()
storage.storeData(rdf_content, load_type)
messages.add_message(request, messages.INFO, "New RDFStorage could be successfully created!")
except Exception, e:
result.update({"exception": e})
def query(request):
if request.method != "POST": return INDEX
form = QueryForm(request.POST)
result = {"load_form":LoadForm(), "query_form": form}
if form.is_valid():
rdf_query = form.cleaned_data.get("rdf_query")
format = form.cleaned_data.get("output_type", "xml")
if not rdf_query:
messages.add_message(request, messages.ERROR, "Please enter a query!")
return result
try:
queryResult = RDFStorage().query(rdf_query)
stringResult = queryResult.serialize(format = format)
if format == "xml":
xml = minidom.parseString(stringResult)
stringResult = xml.toprettyxml()
elif format == "json":
stringResult = json.dumps(json.loads(stringResult), sort_keys = False, indent = 4)
result.update({"result" : stringResult, "format":format})
except Exception, e:
result.update({"exception" : e})