英文:
Trying to filter an array of strings to return a single field which is a subset of the array with strings that contain a variable
问题
以下是您要翻译的内容：
"match (n:Node) return n.string" 返回按项目节点排序的字符串 ["abc,def,abcde"]
"match (n:Node) where any(string in n.string where string contains "abc") return n" 获取包含我寻找的内容的节点，但似乎找不到一种方式来获取匹配的节点并将它们作为字段返回
因此，如果一个节点具有字符串 ["abc","def","abcde"]，那么当我搜索包含 "bc" 的字符串时，它应该获取该节点并只返回字符串 ["abc","abcde"]
英文:
The DB has items, and these items have a string parameter which is a comma separated string array. Im trying to pass in a search variable, and use that to return the item node, and the string array but with only the strings that match the search variable
match (n:Node) return n.string
returns the strings sorted by the item node as ["abc,def,abcde"]
match (n:Node) where any(string in n.string where string contains "abc") return n
This gets me the nodes where one of the strings contains what I'm looking for, but I can't seem to find a way to get the ones which matched and return them as a field
So if a node has a string of ["abc","def","abcde"] then when I search for strings containing "bc" then it should get the node and return just the strings of ["abc","abcde"]
答案1
得分: 0
以下查询返回每个节点及其过滤字符串的列表。不含匹配字符串的节点将被忽略。$filter 是一个参数，用于指定所需的过滤器（例如，"abc"）。
MATCH (n:Node)
UNWIND n.string AS s
WITH n, s
WHERE s CONTAINS $filter
RETURN n, COLLECT(s) AS filtered_strings
注意：如果 n.string 实际上是一个看起来像列表的字符串，请将 n.string 替换为 SPLIT(n.string, ',')。
英文:
The following query returns each node and its list of filtered strings. Nodes without matching strings are ignored. $filter is a parameter with the desired filter (e.g., "abc").
MATCH (n:Node)
UNWIND n.string AS s
WITH n, s
WHERE s CONTAINS $filter
RETURN n, COLLECT(s) AS filtered_strings
NOTE: If n.string is actually a string that looks like a list, replace n.string with SPLIT(n.string, ',').
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论