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return artist even if it has no relations

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simon 2019-06-22 21:53:35 -04:00
parent 99c2391aab
commit 59c1ca2f2d
1 changed files with 4 additions and 4 deletions
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8
src/main/java/net/simon987/musicgraph/io/MusicDatabase.java
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@ -80,7 +80,8 @@ public class MusicDatabase extends AbstractBinder {
try (Session session = driver.session()) {
StatementResult result = query(session,
"MATCH (a:Artist {id: $mbid})-[:CREDITED_FOR]->(r:Release)\n" +
"MATCH (a:Artist {id: $mbid})" +
"WITH a OPTIONAL MATCH (a)-[:CREDITED_FOR]->(r:Release)\n" +
"WITH collect({id: ID(r), mbid:r.id, name:r.name, year:r.year, labels:labels(r)}) as releases, a\n" +
"OPTIONAL MATCH (a)-[r:IS_TAGGED]->(t:Tag)\n" +
"WITH collect({weight: r.weight, name: t.name, id:ID(t)}) as tags, a, releases\n" +
@ -150,10 +151,9 @@ public class MusicDatabase extends AbstractBinder {
params.put("mbid", mbid);
StatementResult result = query(session,
"MATCH (a:Artist)-[r:IS_RELATED_TO]-(b)\n" +
"MATCH (a:Artist)\n" +
"WHERE a.id = $mbid\n" +
// Only match artists with > 0 releases
"MATCH (b)-[:CREDITED_FOR]->(:Release)\n" +
"WITH a OPTIONAL MATCH (a)-[r:IS_RELATED_TO]-(b)" +
"WHERE r.weight > 0.15\n" +
"RETURN a as artist, {rels: collect(DISTINCT r), nodes: collect(DISTINCT b)} as rank1\n" +
"LIMIT 1",