将 Url 查询转换为节点

Question

我正在尝试将 Url-String 转换为带有密码的节点：

`https://e.whoopidoo.nl/x/plugin/?pName=edit_data&MIDRID=S7Y1Mv2fa2tobGz5P8fW0NzU4n8RUMjYwNIAAAA21&Z=-394462905&utm_source=DMdelivery&utm_medium=email&utm_content=ae9982saa&utm_campaign=aletter%202018"`

并用

将其转换为数组

`split(apoc.data.url(u.url).query,"&") as urlArr`

结果数组：["pName=edit_data", "MIDRID=S7Y1Mv2fa2tobGz5P8fW0NzU4n_RrZGhsZmRJQAA67", "Z=-1006289928", "utm_source=DMdelivery", "utm_medium=email", "utm_content=ae9982saa", "utm_campaign=aletter 2018"]

能否请您帮忙采取哪些步骤：

如何使用 UNWIND 或 FOREACH 或 apoc.function 遍历 urlArr？
然后循环内的每个值split( arrValue, "=") as keyValue
如何收集这些键值转换成这个Url(:urlQuery{ collectedKeyVals })

密码：

MATCH (u:Url)
WITH u, split(apoc.data.url(u.url).query,"&") as urlArr 
// UNWIND or FOREACH - urlArr?
// ... in loop ... split( arrValue, "=") as keyValue
// How to COLLECT efficiently ?
// MERGE or CREATE

Answer 1

使用List comprehension获取键值对列表
然后使用apoc.map.fromPairs函数从具有键值对的列表中获取映射
并使用 SET 从地图设置属性

WITH "https://e.whoopidoo.nl/x/plugin/?pName=edit_data&MIDRID=S7Y1Mv2fa2tobGz5P8fW0NzU4n8RUMjYwNIAAAA21&Z=-394462905&utm_source=DMdelivery&utm_medium=email&utm_content=ae9982saa&utm_campaign=aletter%202018" as url
WITH split(apoc.data.url(url).query,"&") as urlArr

// 1
WITH [n in urlArr | split(n, '=')] as keyValuePairs
// 2
WITH apoc.map.fromPairs(keyValuePairs) as keyValueMaps
// 3 
CREATE (U:urlQuery) SET U = keyValueMaps

RETURN U

Answer 2

您可以在创建节点后使用 UNWIND 使用 apoc 动态设置这些属性。

WITH split(apoc.data.url("https://e.whoopidoo.nl/x/plugin/?pName=edit_data&MIDRID=S7Y1Mv2fa2tobGz5P8fW0NzU4n8RUMjYwNIAAAA21&Z=-394462905&utm_source=DMdelivery&utm_medium=email&utm_content=ae9982saa&utm_campaign=aletter%202018").query,"&") as urlArr 
CREATE (N:urlQuery) 
WITH N,urlArr
UNWIND urlArr as urlValue 
CALL apoc.create.setProperty(N, split( urlValue, "=")[0], split( urlValue, "=")[1]) YIELD node
RETURN node

将 Url 查询转换为节点

Convert an Url-query into a node

neo4j

cypher

neo4j-apoc