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Call rdflib delete and insert data methods
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white-gecko committed Jun 30, 2023
1 parent 3dc77e0 commit 843a4f6
Showing 1 changed file with 24 additions and 12 deletions.
36 changes: 24 additions & 12 deletions quit/tools/update.py
Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,12 @@ def _append(dct, identifier, action, items):
changes.append((action, items))
dct[identifier] = changes

def _filterExistingTriples(g, triples):
return list(filter(lambda triple: triple not in g, triples))

def _filterNonExistingTriples(g, triples):
return list(filter(lambda triple: triple in g, triples))

def evalLoad(ctx, u):
"""
http://www.w3.org/TR/sparql11-update/#load
Expand Down Expand Up @@ -69,7 +75,7 @@ def evalLoad(ctx, u):
evalClear = rdflib.plugins.sparql.update.evalClear
evalDrop = rdflib.plugins.sparql.update.evalDrop

def evalInsertData(ctx, u):
def evalInsertData(ctx: QueryContext, u: CompValue) -> dict:
"""
http://www.w3.org/TR/sparql11-update/#insertData
"""
Expand All @@ -80,46 +86,53 @@ def evalInsertData(ctx, u):

# add triples
g = ctx.graph
filled = list(filter(lambda triple: triple not in g, u.triples))
filled = _filterNonExistingTriples(g, u.triples)
if filled:
_append(res["delta"], 'default', 'additions', filled)
g += filled
u.triples = filled

# add quads
# u.quads is a dict of graphURI=>[triples]
for g in u.quads:
cg = ctx.dataset.get_context(g)
filledq = list(filter(lambda triple: triple not in cg, u.quads[g]))
# type error: Argument 1 to "get_context" of "ConjunctiveGraph" has incompatible type "Optional[Graph]"; expected "Union[IdentifiedNode, str, None]"
cg = ctx.dataset.get_context(g) # type: ignore[arg-type]
filledq = _filterExistingTriples(cg, u.quads[g])
if filledq:
_append(res["delta"], cg.identifier, 'additions', filledq)
cg += filledq
u.quads[g] = filledq

rdflib.plugins.sparql.update.evalInsertData(ctx, u)

return res


def evalDeleteData(ctx, u):
def evalDeleteData(ctx: QueryContext, u: CompValue) -> dict:
"""
http://www.w3.org/TR/sparql11-update/#deleteData
"""

res = {}
res["type"] = "DELETE"
res["delta"] = {}

# remove triples
g = ctx.graph
filled = list(filter(lambda triple: triple in g, u.triples))
filled = _filterNonExistingTriples(g, u.triples)
if filled:
_append(res["delta"], 'default', 'removals', filled)
g -= filled
u.triples = filled

# remove quads
# u.quads is a dict of graphURI=>[triples]
for g in u.quads:
# type error: Argument 1 to "get_context" of "ConjunctiveGraph" has incompatible type "Optional[Graph]"; expected "Union[IdentifiedNode, str, None]"
cg = ctx.dataset.get_context(g)
filledq = list(filter(lambda triple: triple in cg, u.quads[g]))
filledq = _filterNonExistingTriples(cg, u.quads[g])
if filledq:
_append(res["delta"], cg.identifier, 'removals', filledq)
cg -= filledq
u.quads[g] = filledq

rdflib.plugins.sparql.update.evalDeleteData(ctx, u)

return res

Expand Down Expand Up @@ -240,7 +253,6 @@ def evalModify(ctx, u):
evalMove = rdflib.plugins.sparql.update.evalMove
evalCopy = rdflib.plugins.sparql.update.evalCopy


def evalUpdate(graph, update, initBindings=None, actionLog=False):
"""
http://www.w3.org/TR/sparql11-update/#updateLanguage
Expand Down

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