def all(self, schema_name, depth=3):
schema_uri = self.parent.get_uri(schema_name)
uri = URIRef(schema_uri)
var = v['uri']
q = Select([var]).where((var, RDF.type, uri))
q = q.order_by(desc(var))
for data in q.execute(self.graph):
yield self.get(data['uri'], depth=depth, schema=schema_uri)
def all(self, schema_name, depth=3):
schema_uri = self.parent.get_uri(schema_name)
uri = URIRef(schema_uri)
var = v['uri']
q = Select([var]).where((var, RDF.type, uri))
q = q.order_by(desc(var))
for data in q.execute(self.graph):
yield self.get(data['uri'], depth=depth, schema=schema_uri)
def query(self, parents=None):
""" Compose the query and generate SPARQL. """
# TODO: benchmark single-query strategy
q = Select([])
q = self.project(q, parent=True)
q = self.filter(q, parents=parents)
if self.parent is None:
subq = Select([self.var])
subq = self.filter(subq, parents=parents)
subq = subq.offset(self.node.offset)
subq = subq.limit(self.node.limit)
subq = subq.distinct()
# TODO: sorting.
subq = subq.order_by(desc(self.var))
q = q.where(subq)
# if hasattr(self.context, 'identifier'):
# q._where = graph(self.context.identifier, q._where)
log.debug("Compiled query: %r", q.compile())
return q
def query(self, parents=None):
""" Compose the query and generate SPARQL. """
# TODO: benchmark single-query strategy
q = Select([])
q = self.project(q, parent=True)
q = self.filter(q, parents=parents)
if self.parent is None:
subq = Select([self.var])
subq = self.filter(subq, parents=parents)
subq = subq.offset(self.node.offset)
subq = subq.limit(self.node.limit)
subq = subq.distinct()
# TODO: sorting.
subq = subq.order_by(desc(self.var))
q = q.where(subq)
# if hasattr(self.context, 'identifier'):
# q._where = graph(self.context.identifier, q._where)
log.debug("Compiled query: %r", q.compile())
return q
