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Draft: Dataset add named graph #2592

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bd7483a
feat: Add a Graph identifier setter
Murloc6 Sep 12, 2023
cf17385
WIP: Add a add_named_graph method on Dataset
Murloc6 Sep 12, 2023
41e9805
Merge branch 'main' into dataset_add_named_graph
nicholascar Mar 20, 2024
3d96f24
Merge branch 'main' into dataset_add_named_graph
nicholascar Jul 25, 2024
761e79d
Merge branch 'main' into dataset_add_named_graph
nicholascar Sep 29, 2024
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15 changes: 15 additions & 0 deletions rdflib/graph.py
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Original file line number Diff line number Diff line change
Expand Up @@ -472,6 +472,14 @@ def store(self) -> Store:
def identifier(self) -> _ContextIdentifierType:
return self.__identifier

@identifier.setter
def identifier(self, identifier: IdentifiedNode):
if not isinstance(identifier, IdentifiedNode):
raise TypeError(
"The identifier for a Graph must be an IdentifiedNode"
)
self.__identifier = identifier

@property
def namespace_manager(self) -> NamespaceManager:
"""
Expand Down Expand Up @@ -2535,6 +2543,13 @@ def add_graph(
"""alias of graph for consistency"""
return self.graph(g)

def add_named_graph(
self, named_graph_identifier: IdentifiedNode, g: Optional[Union[_ContextIdentifierType, _ContextType, str]]
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@aucampia aucampia Sep 12, 2023 •
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Suggested change
self, named_graph_identifier: IdentifiedNode, g: Optional[Union[_ContextIdentifierType, _ContextType, str]]
self, identifier: IdentifiedNode, graph: Optional[Union[_ContextIdentifierType, _ContextType, str]]

I'm not sure why g/graph is not of type Graph though, which it ideally should be. It could also maybe be worth it to take Iterable[_TripleType] as type.

) -> Graph:
new_g = self.graph(g)
new_g.identifier = named_graph_identifier
return new_g

def remove_graph(
self: _DatasetT, g: Optional[Union[_ContextIdentifierType, _ContextType, str]]
) -> _DatasetT:
Expand Down
11 changes: 11 additions & 0 deletions test/test_graph/test_graph.py
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Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,17 @@ def test_property_identifier() -> None:
assert id == graph.identifier


def test_property_setter_identifier() -> None:
"""
The ``identifier`` property setter works correctly.
"""
id = URIRef("example:a")
new_id = URIRef("example:b")
graph = Graph(identifier=id)
assert id == graph.identifier
graph.identifier = new_id
assert new_id == graph.identifier

def test_property_namespace_manager() -> None:
"""
The ``namespace_manager`` property works correctly.
Expand Down
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