84 lines
3.4 KiB
Python
84 lines
3.4 KiB
Python
import logging
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from collections import Counter
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from cognee.tasks.temporal_awareness.graphiti_model import GraphitiNode
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from cognee.infrastructure.databases.vector import get_vector_engine
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from cognee.infrastructure.databases.graph import get_graph_engine
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from cognee.modules.graph.models.EdgeType import EdgeType
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async def index_and_transform_graphiti_nodes_and_edges():
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try:
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created_indexes = {}
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index_points = {}
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vector_engine = get_vector_engine()
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graph_engine = await get_graph_engine()
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except Exception as e:
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logging.error("Failed to initialize engines: %s", e)
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raise RuntimeError("Initialization error") from e
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await graph_engine.query("""MATCH (n) SET n.id = n.uuid RETURN n""")
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await graph_engine.query("""MATCH (source)-[r]->(target) SET r.source_node_id = source.id,
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r.target_node_id = target.id,
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r.relationship_name = type(r) RETURN r""")
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await graph_engine.query("""MATCH (n) SET n.text = COALESCE(n.summary, n.content) RETURN n""")
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nodes_data, edges_data = await graph_engine.get_model_independent_graph_data()
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for node_data in nodes_data[0]["nodes"]:
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graphiti_node = GraphitiNode(
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**{key: node_data[key] for key in ("content", "name", "summary") if key in node_data},
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id=node_data.get("uuid"),
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)
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data_point_type = type(graphiti_node)
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for field_name in graphiti_node._metadata["index_fields"]:
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index_name = f"{data_point_type.__tablename__}.{field_name}"
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if index_name not in created_indexes:
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await vector_engine.create_vector_index(data_point_type.__tablename__, field_name)
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created_indexes[index_name] = True
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if index_name not in index_points:
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index_points[index_name] = []
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if getattr(graphiti_node, field_name, None) is not None:
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indexed_data_point = graphiti_node.model_copy()
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indexed_data_point._metadata["index_fields"] = [field_name]
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index_points[index_name].append(indexed_data_point)
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for index_name, indexable_points in index_points.items():
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index_name, field_name = index_name.split(".")
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await vector_engine.index_data_points(index_name, field_name, indexable_points)
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edge_types = Counter(
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edge[1][1]
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for edge in edges_data[0]["elements"]
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if isinstance(edge, list) and len(edge) == 3
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)
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for text, count in edge_types.items():
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edge = EdgeType(relationship_name=text, number_of_edges=count)
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data_point_type = type(edge)
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for field_name in edge._metadata["index_fields"]:
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index_name = f"{data_point_type.__tablename__}.{field_name}"
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if index_name not in created_indexes:
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await vector_engine.create_vector_index(data_point_type.__tablename__, field_name)
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created_indexes[index_name] = True
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if index_name not in index_points:
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index_points[index_name] = []
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indexed_data_point = edge.model_copy()
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indexed_data_point._metadata["index_fields"] = [field_name]
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index_points[index_name].append(indexed_data_point)
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for index_name, indexable_points in index_points.items():
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index_name, field_name = index_name.split(".")
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await vector_engine.index_data_points(index_name, field_name, indexable_points)
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return None
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