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Update broken cypher statement

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- I think this does what you want @Tirokk, but let me know if I missed something
- this removes all white spaces in the hashtag, then removes any hashtags that have special characters, or that start with a number, but do not have any letters after
- it does not check that the size is greater or equal to 1 because the regex already removes anything that does not have at least one character
This commit is contained in:
Matt Rider 2019-08-27 01:35:28 +02:00
parent 25bac9a84c
commit 20c625a827
1 changed files with 6 additions and 3 deletions
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9
deployment/legacy-migration/maintenance-worker/migration/neo4j/contributions/contributions.cql
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@ -147,8 +147,11 @@ UNWIND categoryIds AS categoryId
MATCH (c:Category {id: categoryId})
MERGE (p)-[:CATEGORIZED]->(c)
WITH p, post.tags AS tags
UNWIND apoc.text.replace(tags, '/[^a-z^A-Z^0-9]{1}/g', '') AS tag
WHERE size(apoc.text.regexGroups(tag, '/^(([a-zA-Z]+[a-zA-Z0-9]*)|([0-9]+[a-zA-Z]+[a-zA-Z0-9]*))$/g')) >= 1
MERGE (t:Tag { id: tag, disabled: false, deleted: false })
UNWIND tags AS tag
WITH apoc.text.replace(tag, '[^a-z^A-Z^0-9]', '') as tagNoSpacesAllowed
CALL apoc.when(tagNoSpacesAllowed =~ '^(([a-zA-Z]+[a-zA-Z0-9]*)|([0-9]+[a-zA-Z]+[a-zA-Z0-9]*))$', 'RETURN tagNoSpacesAllowed', '', {tagNoSpacesAllowed: tagNoSpacesAllowed})
YIELD value as validated
WHERE validated.tagNoSpacesAllowed IS NOT NULL
MERGE (t:Tag { id: validated.tagNoSpacesAllowed, disabled: false, deleted: false })
MERGE (p)-[:TAGGED]->(t)
;