Neo4j 创建列表中所有节点之间的关系

Question

我正在建立在文章中提到人们的关系。 每篇文章都有自己的标题，并有一个逗号分隔的人员列表，这些人员在原始 CSV 的单个字段中提及。

MERGE (article:Article{
  title:row.Title
})

FOREACH (name IN split(row.People, ",") |
  MERGE (person:Person {title:trim(name)})
  MERGE (person)-[:MENTIONED_IN]->(article))

;

我现在想在每篇文章中提到的所有人之间创建 [:MENTIONED_WITH] 关系，我该怎么做？

Answer 1

你想得到这样的东西吗？

WITH "sylvain, nicolas, christophe" AS people 
MERGE (article:ArticleTest{
  title:"MyTitle"
})

FOREACH (name IN split(people, ",") |
  MERGE (person:Person {title:trim(name)})
  MERGE (person)-[:MENTIONED_IN]->(article))
WITH article
MATCH (p:Person)-[:MENTIONED_IN]->(article)
MATCH (p2:Person)-[:MENTIONED_IN]->(article) WHERE p2.title<>p.title
MERGE (p)-[:MENTIONED_WITH]-(p2)