def evalQuery(graph, query, initBindings, base=None):
initBindings = dict( ( Variable(k),v ) for k,v in iteritems(initBindings) )
ctx = QueryContext(graph, initBindings=initBindings)
ctx.prologue = query.prologue
main = query.algebra
if main.datasetClause:
if ctx.dataset is None:
raise Exception(
"Non-conjunctive-graph doesn't know about " +
"graphs! Try a query without FROM (NAMED).")
ctx = ctx.clone() # or push/pop?
firstDefault = False
for d in main.datasetClause:
if d.default:
if firstDefault:
# replace current default graph
dg = ctx.dataset.get_context(BNode())
ctx = ctx.pushGraph(dg)
firstDefault = True
ctx.load(d.default, default=True)
elif d.named:
g = d.named
ctx.load(g, default=False)
return evalPart(ctx, main)
def evalQuery(graph, query, initBindings, base=None):
initBindings = dict((Variable(k), v) for k, v in iteritems(initBindings))
ctx = QueryContext(graph, initBindings=initBindings)
ctx.prologue = query.prologue
main = query.algebra
if main.datasetClause:
if ctx.dataset is None:
raise Exception(
"Non-conjunctive-graph doesn't know about " +
"graphs! Try a query without FROM (NAMED).")
ctx = ctx.clone() # or push/pop?
firstDefault = False
for d in main.datasetClause:
if d.default:
if firstDefault:
# replace current default graph
dg = ctx.dataset.get_context(BNode())
ctx = ctx.pushGraph(dg)
firstDefault = True
ctx.load(d.default, default=True)
elif d.named:
g = d.named
ctx.load(g, default=False)
return evalPart(ctx, main)
def evalQuery(graph, query, initBindings, base=None):
ctx = QueryContext(graph)
ctx.prologue = query.prologue
if initBindings:
for k, v in initBindings.items():
if not isinstance(k, Variable):
k = Variable(k)
ctx[k] = v
# ctx.push() # nescessary?
main = query.algebra
# import pdb; pdb.set_trace()
if main.datasetClause:
if ctx.dataset is None:
raise Exception(
"Non-conjunctive-graph doesn't know about " +
"graphs! Try a query without FROM (NAMED).")
ctx = ctx.clone() # or push/pop?
firstDefault = False
for d in main.datasetClause:
if d.default:
if firstDefault:
# replace current default graph
dg = ctx.dataset.get_context(BNode())
ctx = ctx.pushGraph(dg)
firstDefault = True
ctx.load(d.default, default=True)
elif d.named:
g = d.named
ctx.load(g, default=False)
return evalPart(ctx, main)
def evalQuery(graph, query, initBindings, base=None):
ctx = QueryContext(graph)
ctx.prologue = query.prologue
if initBindings:
for k, v in initBindings.iteritems():
if not isinstance(k, Variable):
k = Variable(k)
ctx[k] = v
# ctx.push() # nescessary?
main = query.algebra
# import pdb; pdb.set_trace()
if main.datasetClause:
if ctx.dataset is None:
raise Exception("Non-conjunctive-graph doesn't know about " +
"graphs! Try a query without FROM (NAMED).")
ctx = ctx.clone() # or push/pop?
firstDefault = False
for d in main.datasetClause:
if d.default:
if firstDefault:
# replace current default graph
dg = ctx.dataset.get_context(BNode())
ctx = ctx.pushGraph(dg)
firstDefault = True
ctx.load(d.default, default=True)
elif d.named:
g = d.named
ctx.load(g, default=False)
return evalPart(ctx, main)
def evalQuery(graph, query, initBindings, base=None):
initBindings = dict( ( Variable(k),v ) for k,v in iteritems(initBindings) )
ctx = QueryContext(graph, initBindings=initBindings)
ctx.prologue = query.prologue
main = query.algebra
if main.datasetClause:
if ctx.dataset is None:
raise Exception(
"Non-conjunctive-graph doesn't know about " +
"graphs! Try a query without FROM (NAMED).")
ctx = ctx.clone() # or push/pop?
firstDefault = False
for d in main.datasetClause:
if d.default:
if firstDefault:
# replace current default graph
dg = ctx.dataset.get_context(BNode())
ctx = ctx.pushGraph(dg)
firstDefault = True
ctx.load(d.default, default=True)
# TODO re-enable original behaviour if FROM NAMED works with named graphs
# https://github.com/AKSW/QuitStore/issues/144
elif d.named:
raise FromNamedError
# g = d.named
# ctx.load(g, default=False)
return evalPart(ctx, main)
def evalQuery(graph, query, initBindings, base=None):
ctx = QueryContext(graph)
ctx.prologue = query.prologue
main = query.algebra
if initBindings:
# add initBindings as a values clause
values = {} # no dict comprehension in 2.6 :(
for k, v in initBindings.iteritems():
if not isinstance(k, Variable):
k = Variable(k)
values[k] = v
main = main.clone() # clone to not change prepared q
main['p'] = main.p.clone()
# Find the right place to insert MultiSet join
repl = main.p
if repl.name == 'Slice':
repl['p'] = repl.p.clone()
repl = repl.p
if repl.name == 'Distinct':
repl['p'] = repl.p.clone()
repl = repl.p
if repl.p.name == 'OrderBy':
repl['p'] = repl.p.clone()
repl = repl.p
if repl.p.name == 'Extend':
repl['p'] = repl.p.clone()
repl = repl.p
repl['p'] = Join(repl.p, ToMultiSet(Values([values])))
# TODO: Vars?
if main.datasetClause:
if ctx.dataset is None:
raise Exception("Non-conjunctive-graph doesn't know about " +
"graphs! Try a query without FROM (NAMED).")
ctx = ctx.clone() # or push/pop?
firstDefault = False
for d in main.datasetClause:
if d.default:
if firstDefault:
# replace current default graph
dg = ctx.dataset.get_context(BNode())
ctx = ctx.pushGraph(dg)
firstDefault = True
ctx.load(d.default, default=True)
elif d.named:
g = d.named
ctx.load(g, default=False)
return evalPart(ctx, main)
def evalQuery(graph, query, initBindings, base=None):
ctx = QueryContext(graph)
ctx.prologue = query.prologue
main = query.algebra
if initBindings:
# add initBindings as a values clause
values = {} # no dict comprehension in 2.6 :(
for k,v in initBindings.iteritems():
if not isinstance(k, Variable):
k = Variable(k)
values[k] = v
main = main.clone() # clone to not change prepared q
main['p'] = main.p.clone()
# Find the right place to insert MultiSet join
repl = main.p
if repl.name == 'Slice':
repl['p'] = repl.p.clone()
repl = repl.p
if repl.name == 'Distinct':
repl['p'] = repl.p.clone()
repl = repl.p
if repl.p.name == 'OrderBy':
repl['p'] = repl.p.clone()
repl = repl.p
if repl.p.name == 'Extend':
repl['p'] = repl.p.clone()
repl = repl.p
repl['p'] = Join(repl.p, ToMultiSet(Values([values])))
# TODO: Vars?
if main.datasetClause:
if ctx.dataset is None:
raise Exception(
"Non-conjunctive-graph doesn't know about " +
"graphs! Try a query without FROM (NAMED).")
ctx = ctx.clone() # or push/pop?
firstDefault = False
for d in main.datasetClause:
if d.default:
if firstDefault:
# replace current default graph
dg = ctx.dataset.get_context(BNode())
ctx = ctx.pushGraph(dg)
firstDefault = True
ctx.load(d.default, default=True)
elif d.named:
g = d.named
ctx.load(g, default=False)
return evalPart(ctx, main)
