A node can have a multilabel. How i can define multilabel?

[darixsamani]

in Neo4j, A node can have a multilabel, how can we define several labels using your tools?

How I can launch an advanced query?

[ontolocy]

Hi @darixsamani,

I've just pushed a new version #11 which adds support for multiple labels by adding a __secondarylabels__ class variable where you can provide a list of additional labels to apply to a node.

You'll need v1.0.0 pip install --upgrade neontology. The new version also upgrades to Pydantic v2 which may need require some changes to your models.

class ElephantNode(BaseNode):
    __primaryproperty__: ClassVar[str] = "name"
    __primarylabel__: ClassVar[Optional[str]] = "Elephant"
    __secondarylabels__: ClassVar[Optional[list]] = ["Animal", "Mammal"]
    name: str

Check out the docs here.

Neontology doesn't natively support advanced queries - Neo4j's Cypher language is great for that though. You can run queries using the Neo4j driver of the Neontology GraphConnection object. For example:

import neo4j
from neontology import init_neontology, GraphConnection

init_neontology()

gc = GraphConnection()

cypher_query = """
MATCH (p:Person)
RETURN COLLECT({name: p.name})
"""

result = gc.driver.execute_query(cypher_query, result_transformer_=neo4j.Result.single)

print(result)

# [{'name': 'Alice'}, {'name': 'Bob'}]

Again, I've updated the docs with some more info.

Hope that helps!