CODEWITHSUNDEEP
neo4jcypher
Polad Samadzada
Polad Samadzada

Reputation: 48

How to modify a returned property without affecting the actual property in Neo4j?

Is there a way to modify a returned property without affecting the actual property in Neo4j? I have tried to use SET Clause, but it modifies the actual property in the database.

Take as an example this query for https://console.neo4j.org/: 

match (n:Crew)
//change n.name = "my_value"
return n

How can I get the output below without changing the actual name property?

(0:Crew {name:"my_value"})
(1:Crew {name:"my_value"})
(2:Crew {name:"my_value"})
(3:Crew:Matrix {name:"my_value"})

Upvotes: 0

Views: 314

Answers (2)

cybersam
cybersam

Reputation: 67044

You could use a map projection to return a map of all the properties of each node, with some of the properties being overridden, like this:

MATCH (n:Crew)
RETURN n {.*, name: 'my_value'}

However, this will not generate a visualization, since the returned n would not be a node (it would just be a map).

If you want to visualize the result, you should look into using virtual nodes and relationships. You should also use the Neo4j Browser instead of https://console.neo4j.org/, as the latter may not properly visualize virtual nodes and relationships.

Upvotes: 2

Polad Samadzada
Polad Samadzada

Reputation: 48

I don' know if this is the right way to achieve this, but here is how I did it:

match (n:Crew) 
return {name: "my_value"} as n

Other properties of n can be placed inside of this custom object.

Upvotes: 0

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