GraphML import doesn't work as expected when the metadata key ID id different from attribute name
sairamch04 opened this issue · 2 comments
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Expected Behavior (Mandatory)
Let's take the sample GraphML file (took from https://neo4j.com/labs/apoc/4.1/overview/apoc.import/apoc.import.graphml/)
<?xml version="1.0" encoding="UTF-8"?>
<graphml xmlns="http://graphml.graphdrawing.org/xmlns" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://graphml.graphdrawing.org/xmlns http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd">
...
<key id="name" for="node" attr.name="name"/>
<key id="title" for="node" attr.name="title"/>
...
<graph id="G" edgedefault="directed">
<node id="n188" labels=":Movie"><data key="labels">:Movie</data><data key="title">The Matrix</data><data key="tagline">Welcome to the Real World</data><data key="released">1999</data></node>
<node id="n189" labels=":Person"><data key="labels">:Person</data><data key="born">1964</data><data key="name">Keanu Reeves</data></node>
<node id="n190" labels=":Person"><data key="labels">:Person</data><data key="born">1967</data><data key="name">Carrie-Anne Moss</data></node>
...
</graph>
</graphml>
In the example, the Key ID is the same as attr.name
i.e
<key id="name" for="node" attr.name="name"/>
However, if the key id
is different from attr.name
, the neo4j doesn't take the property name as attr.name
, but rather takes id
. This defeats the purpose for which we have attr.name
which is to have human-readable names.
I'm using jgrapht to export the graph to graphML to finally use in neo4j and jgrapht makes excessive use of attr.name
.
Actual Behavior (Mandatory)
if the key id
is different from attr.name
, the neo4j takes the property name as id
instead of attr.name
. This defeats the purpose for which we have attr.name
which is to have human-readable names.
How to Reproduce the Problem
Simple Dataset (where it's possibile)
//Insert here a set of Cypher statements that helps us to reproduce the problem
Steps (Mandatory)
Screenshots (where it's possibile)
Specifications (Mandatory)
Currently used versions
Versions
- OS: MAC latest as of today
- Neo4j: (latest)
- Neo4j-Apoc: (latest)
I created a temporary script to unblock myself, by replacing id
with attr.name
https://gist.github.com/sairamch04/715fe6dd277347ee9c94c5ac2ced11fc
Hey! I was unable to reproduce this (or I have misunderstood the problem).
With this graphml file:
<?xml version="1.0" encoding="UTF-8"?>
<graphml xmlns="http://graphml.graphdrawing.org/xmlns" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://graphml.graphdrawing.org/xmlns http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd">
<key id="prop1" for="node" attr.name="born"/>
<key id="prop2" for="node" attr.name="name"/>
<graph id="G" edgedefault="directed">
<node id="n189" labels=":Person"><data key="labels">:Person</data><data key="prop1">1964</data><data key="prop2">Keanu Reeves</data></node>
</graph>
</graphml>
I have the keys at the top which map the id prop1 and prop2 to their real names of born and name. When I import I end up with a node:
MATCH (n) RETURN n;
{
"identity": 0,
"labels": [
"Person"
],
"properties": {
"born": "1964",
"name": "Keanu Reeves"
},
"elementId": "4:0d140b2a-fae9-435f-bb8a-d272751f3dbf:0"
}
As you can see, the properties aer called born and name as I had mapped them.