model

Classes:

• BaseRdfModel –

  Base class for RDF-mappable Pydantic models.

BaseRdfModel pydantic-model

Bases: BaseModel

Base class for RDF-mappable Pydantic models.

Config:

• arbitrary_types_allowed: True

Fields:

• uri (PydanticURIRef)

uri pydantic-field

uri: PydanticURIRef

The URI identifier for this RDF entity

all_entities classmethod

all_entities(graph: Graph) -> list[T]

Return all entities of this model's RDF type from the graph.

Returns:

• list[T] –

  A list of model instances for each entity of this RDF type in the graph.

Raises:

• CircularReferenceError –

  If a circular reference is detected during parsing.

• ValueError –

  If any entity URI does not have the expected RDF type.

• UnsupportedFieldTypeError –

  If a field type is not supported for RDF parsing.

Example

entities = MyModel.all_entities(graph)

model_dump_rdf

model_dump_rdf() -> Graph

Serialize this model instance to an RDF graph.

Returns:

• Graph –

  An RDFLib Graph representing this model instance.

Example

graph = instance.model_dump_rdf()

parse_graph classmethod

parse_graph(graph: Graph, uri: URIRef, _cache: RDFEntityCache | None = None) -> T

Parse an RDF entity from the graph into a model instance.

Uses a cache to prevent recursion and circular references.

Parameters:

• _cache (RDFEntityCache | None, default: None ) –

  Optional cache for already-parsed entities.

Returns:

• T –

  An instance of the model corresponding to the RDF entity.

Raises:

• CircularReferenceError –

  If a circular reference is detected during parsing.

• ValueError –

  If the URI does not have the expected RDF type.

• UnsupportedFieldTypeError –

  If a field type is not supported for RDF parsing.

Example

model = MyModel.parse_graph(graph, EX.some_uri)