profiles.py 文件源码

def graph_from_catalog(self, catalog_dict, catalog_ref):

        g = self.g

        for prefix, namespace in namespaces.iteritems():
            g.bind(prefix, namespace)

        g.add((catalog_ref, RDF.type, DCAT.Catalog))

        # Basic fields
        items = [
            ('title', DCT.title, config.get('ckan.site_title'), Literal),
            ('description', DCT.description, config.get('ckan.site_description'), Literal),
            ('homepage', FOAF.homepage, config.get('ckan.site_url'), URIRef),
            ('language', DCT.language, config.get('ckan.locale_default', 'en'), Literal),
        ]
        for item in items:
            key, predicate, fallback, _type = item
            if catalog_dict:
                value = catalog_dict.get(key, fallback)
            else:
                value = fallback
            if value:
                g.add((catalog_ref, predicate, _type(value)))

        # Dates
        modified = self._last_catalog_modification()
        if modified:
            self._add_date_triple(catalog_ref, DCT.modified, modified)