Python Graph.set方法代码示例

# 需要导入模块: from rdflib.graph import Graph [as 别名]
# 或者: from rdflib.graph.Graph import set [as 别名]
def create_project(g):
    """Creates a project in the database (and the metadata cache) from an input graph"""
    print "Here 1"

    query = g.query("""SELECT ?uri ?user
                    WHERE {
                        ?user perm:hasPermissionOver ?uri .
                        ?user rdf:type foaf:Agent .
                    }""", initNs=ns)

    print "Here 2"

    for uri in g.subjects(NS.rdf.type, NS.dm.Project):
        print "Here 3"
        user = g.value(None, NS.perm.hasPermissionOver, uri)
        if user:
            print "Here 3.1"
            user_obj = User.objects.get(username=user.split('/')[-1])
        print "Here 3.2"
        project_identifier = uris.uri('semantic_store_projects', uri=uri)
        print "Here 3.3"
        project_g = Graph(store=rdfstore(), identifier=project_identifier)

        print "Here 4"

        for text_uri in g.subjects(NS.rdf.type, NS.dcmitype.Text):
            text_graph = Graph()
            text_graph += g.triples((text_uri, None, None))
            print "Here 4.1"
            if user:
                project_texts.update_project_text(text_graph, uri, text_uri, user_obj)

        print "Here 5"

        for t in g:
            project_g.add(t)

        for text_uri in g.subjects(NS.rdf.type, NS.dcmitype.Text):
            project_g.remove((text_uri, NS.cnt.chars, None))

        url = uris.url('semantic_store_projects', uri=uri)
        project_g.set((uri, NS.dcterms['created'], Literal(datetime.utcnow())))

        print "before user"

        if user:
            print "user is true"
            project_g.remove((user, None, None))
            username = user.split("/")[-1]
            permissions.grant_full_project_permissions(username, uri)

        add_project_types(project_g, uri)
        build_project_metadata_graph(uri)

        print "Successfully created project with uri " + uri

# 需要导入模块: from rdflib.graph import Graph [as 别名]
# 或者: from rdflib.graph.Graph import set [as 别名]
    def prepare(self):
        logger.info('Building RDF graph')

        graph = Graph()

        for inc in self.include:
            lg0 = len(graph)
            graph.load(inc, format=self.extFromFilename(inc))
            logger.info(' - Included {} triples from {}'.format(len(graph) - lg0, inc))

        try:
            scheme_uri = next(graph.triples((None, RDF.type, SKOS.ConceptScheme)))
        except StopIteration:
            raise Exception('Concept scheme URI could not be found in vocabulary scheme data')
        scheme_uri = scheme_uri[0]

        now = datetime.utcnow().strftime('%Y-%m-%dT%H:%M:%SZ')
        graph.set((URIRef(scheme_uri), DCTERMS.modified, Literal(now, datatype=XSD.dateTime)))

        lg0 = len(graph)
        for resource in self.vocabulary.resources:
            self.convert_resource(graph, resource, self.vocabulary.resources, scheme_uri,
                                  self.vocabulary.default_language.alpha2)
        logger.info(' - Added {} triples'.format(len(graph) - lg0))

        all_concepts = set([tr[0] for tr in graph.triples((None, RDF.type, SKOS.Concept))])
        for inc in self.mappings_from:
            lg0 = len(graph)
            mappings = self.load_mappings(inc)
            for tr in mappings.triples((None, None, None)):
                if tr[0] in all_concepts:
                    graph.add(tr)
            logger.info(' - Added {} mappings from {}'.format(len(graph) - lg0, inc))

        logger.info('Skosify...')
        self.skosify_process(graph)
        return {'graph': graph}

# 需要导入模块: from rdflib.graph import Graph [as 别名]
# 或者: from rdflib.graph.Graph import set [as 别名]
def update_project_text(g, p_uri, t_uri, user):
    logger.debug("************* Updating project")
    # Correctly format project uri and get project graph
    project_uri = uris.uri('semantic_store_projects', uri=p_uri)
    logger.debug("!!!!!!!!!!!!!! Here 1")
    project_g = Graph(rdfstore(), identifier=project_uri)
    logger.debug("!!!!!!!!!!!!!! Here 2")
    project_metadata_g = Graph(rdfstore(), identifier=uris.project_metadata_graph_identifier(p_uri))
    logger.debug("!!!!!!!!!!!!!! Here 3")
    text_uri = URIRef(t_uri)
    logger.debug("!!!!!!!!!!!!!! Here 4")

    title = g.value(text_uri, NS.dc.title) or g.value(text_uri, NS.rdfs.label) or Literal("")
    logger.debug("!!!!!!!!!!!!!! Here 5")
    content_value = g.value(text_uri, NS.cnt.chars)
    logger.debug("!!!!!!!!!!!!!! Here 6")
    logger.debug("g: %s", g)
    logger.debug("g.value: %s", g.value)
    logger.debug("text_uri: %s", text_uri)
    logger.debug("NS.cnt.chars: %s", NS.cnt.chars)
    logger.debug("content_value: %s", content_value)
    if content_value:
        content = sanitized_content(content_value)
        logger.debug("!!!!!!!!!!!!!! Here 6.1")
    else:
        content = ''
        logger.debug("!!!!!!!!!!!!!! Here 6.2")

    with transaction.commit_on_success():
        logger.debug("!!!!!!!!!!!!!! Here 7")
        for t in Text.objects.filter(identifier=t_uri, valid=True):
            logger.debug("!!!!!!!!!!!!!! Here 8")
            t.valid = False
            logger.debug("!!!!!!!!!!!!!! Here 9")
            t.save()
            logger.debug("!!!!!!!!!!!!!! Here 10")
            # While it looks like this would be better with a QuerySet update, we need to fire the save
            # events to keep the search index up to date. In all forseeable cases, this should only execute
            # for one Text object anyway.

        text = Text.objects.create(identifier=t_uri, title=title, content=content, last_user=user, project=p_uri)
        logger.debug("!!!!!!!!!!!!!! Here 11")

        project_g.add((text_uri, NS.rdf.type, NS.dctypes.Text))
        logger.debug("!!!!!!!!!!!!!! Here 12")
        project_g.set((text_uri, NS.dc.title, title))
        logger.debug("!!!!!!!!!!!!!! Here 13")
        project_g.set((text_uri, NS.rdfs.label, title))
        logger.debug("!!!!!!!!!!!!!! Here 14")

        text_url = URIRef(uris.url('semantic_store_project_texts', project_uri=p_uri, text_uri=text_uri))
        logger.debug("!!!!!!!!!!!!!! Here 15")
        project_g.set((text_uri, NS.ore.isDescribedBy, text_url))
        logger.debug("!!!!!!!!!!!!!! Here 16")

        if (URIRef(p_uri), NS.ore.aggregates, text_uri) in project_metadata_g:
            logger.debug("!!!!!!!!!!!!!! Here 16.1")
            project_metadata_g.add((text_uri, NS.rdf.type, NS.dctypes.Text))
            logger.debug("!!!!!!!!!!!!!! Here 16.2")
            project_metadata_g.set((text_uri, NS.dc.title, title))
            logger.debug("!!!!!!!!!!!!!! Here 16.3")
            project_metadata_g.set((text_uri, NS.rdfs.label, title))
            logger.debug("!!!!!!!!!!!!!! Here 16.4")

    logger.debug("!!!!!!!!!!!!!! Here 17")
    specific_resource_triples = specific_resources_subgraph(g, text_uri, p_uri)
    logger.debug("!!!!!!!!!!!!!! Here 18")
    for t in specific_resource_triples:
        logger.debug("!!!!!!!!!!!!!! Here 19")
        project_g.add(t)

    for t in g.triples((None, NS.rdf.type, NS.oa.TextQuoteSelector)):
        logger.debug("!!!!!!!!!!!!!! Here 20")
        project_g.set(t)