CODEWITHSUNDEEP
neo4jcypherneo4jclient
osher elmakayes
osher elmakayes

Reputation: 30

Neo4j Client Creating Relationship between two existing Nodes

I have tried to create a relationship between two nodes while using Unwind on existing relationships (I am trying to migrate from a previous database)

So Links = relationships which hold the Id of each node on target and source (ID is different from the neo4j id)

The Cypher does not return any error and I do manage to add the nodes but for some reason that I cannot understand why the relationships between nodes are not getting created.

I am using this Cypher: 

graphClient.Cypher
    .Unwind(graph.Links, "singleLink")
    .Match("(firstNode:Node{id: singleLink.Source , projectId: {innerProjectId}})", "(secondNode:Node{id: singleLink.Target , project: {innerProjectId}})")
    .WithParam("innerProjectId",project.Id)
    .Create("(firstNode:Node)-[:ConnectedTo{source: singleLink.Source, target: singleLink.Target}]->(secondNode:Node)")
    .ExecuteWithoutResults();

Thanks a lot.

Upvotes: 0

Views: 556

Answers (1)

Tom Swinkels
Tom Swinkels

Reputation: 1

I think this is wat you want;

MATCH (n1), (n2)
WHERE ID(n1) = 1 AND ID(n2) = 2
CREATE (n1)-[r:RELATION]->(n2)

Upvotes: 0

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