51 lines
1.8 KiB
Python
51 lines
1.8 KiB
Python
from decouple import config
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from neo4j import GraphDatabase
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class Neo4jConnection:
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def __init__(self):
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self.uri = config("NEO4J_URI")
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self.user = config("NEO4J_USER")
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self.password = config("NEO4J_PASSWORD")
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self.driver = GraphDatabase.driver(self.uri, auth=(self.user, self.password))
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# Create the schema
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self.create_schema()
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# Close the connection
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self.close()
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def close(self):
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self.driver.close()
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def create_schema(self):
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with self.driver.session() as session:
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session.write_transaction(self._create_constraints_and_indexes)
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@staticmethod
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def _create_constraints_and_indexes(tx):
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# Constraints and indexes for Person
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tx.run("CREATE CONSTRAINT ON (p:Person) ASSERT p.person_id IS UNIQUE;")
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# Constraints and indexes for Memory
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tx.run("CREATE CONSTRAINT ON (m:Memory) ASSERT m.memory_id IS UNIQUE;")
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tx.run("CREATE INDEX ON :Memory(content);")
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tx.run("CREATE INDEX ON :Memory(timestamp);")
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# Constraints and indexes for Tag
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tx.run("CREATE CONSTRAINT ON (t:Tag) ASSERT t.tag_id IS UNIQUE;")
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tx.run("CREATE INDEX ON :Tag(tag_name);")
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# Constraints and indexes for Category
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tx.run("CREATE CONSTRAINT ON (c:Category) ASSERT c.category_id IS UNIQUE;")
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# Constraints and indexes for Skill
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tx.run("CREATE CONSTRAINT ON (s:Skill) ASSERT s.name IS UNIQUE;")
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# Constraints and indexes for Fact
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tx.run("CREATE CONSTRAINT ON (f:Fact) ASSERT f.certainty IS UNIQUE;")
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# Additional schema definitions can be added here, such as relationship constraints or more complex indexing strategies.
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if __name__ == "__main__":
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conn = Neo4jConnection()
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