def evalDeleteWhere(ctx, u):
"""
http://www.w3.org/TR/sparql11-update/#deleteWhere
"""
res = evalBGP(ctx, u.triples)
for g in u.quads:
cg = ctx.dataset.get_context(g)
ctx.pushGraph(cg)
res = _join(res, evalBGP(ctx, u.quads[g]))
ctx.popGraph()
for c in res:
g = ctx.graph
g -= _fillTemplate(u.triples, c)
for g in u.quads:
cg = ctx.dataset.get_context(c.get(g))
cg -= _fillTemplate(u.quads[g], c)
def evalDeleteWhere(ctx, u):
"""
http://www.w3.org/TR/sparql11-update/#deleteWhere
"""
res = evalBGP(ctx, u.triples)
for g in u.quads:
cg = ctx.dataset.get_context(g)
ctx.pushGraph(cg)
res = _join(res, evalBGP(ctx, u.quads[g]))
ctx.popGraph()
for c in res:
g = ctx.graph
g -= _fillTemplate(u.triples, c)
for g in u.quads:
cg = ctx.dataset.get_context(g)
cg -= _fillTemplate(u.quads[g], c)
def customEval(ctx, part):
"""
Rewrite triple patterns to get super-classes
"""
if part.name == 'BGP':
# rewrite triples
triples = []
for t in part.triples:
if t[1] == rdflib.RDF.type:
bnode = rdflib.BNode()
triples.append((t[0], t[1], bnode))
triples.append((bnode, inferredSubClass, t[2]))
else:
triples.append(t)
# delegate to normal evalBGP
return evalBGP(ctx, triples)
raise NotImplementedError()
def customEval(ctx, part):
"""
Rewrite triple patterns to get super-classes
"""
if part.name == 'BGP':
# rewrite triples
triples = []
for t in part.triples:
if t[1] == rdflib.RDF.type:
bnode = rdflib.BNode()
triples.append((t[0], t[1], bnode))
triples.append((bnode, inferredSubClass, t[2]))
else:
triples.append(t)
# delegate to normal evalBGP
return evalBGP(ctx, triples)
raise NotImplementedError()
