I am trying to delete some connected node together say Photo, with other connected nodes with relationship.
Case is like this:
Album-CONTAINS_PHOTO-Photos (here could be multiple images)
Photo-taken_at-Location
Photo-HAS-Comment
Comment-ADDED_BY-User
I want to delete from Photo to Comment node. (Since Album and user is parent node hence I dont need to delete them unless n until required)
On neo4j webadmin console I am firing this query:
start pht=node:__types__(className="org.sg.domain.Photo"),
cmt=node:__types__(className="org.sg.domain.Comments")
MATCH pht-[r:HAS]-x,pht-[t:taken_at]-x, cmt-[s]-y
WHERE pht.photoId="MhQ2W1GrJ" AND
pht.albumName="FirstAlbum" AND
pht.userName="abc" delete r,s,t,pht,cmt;
(where 'x' and 'y' is general placeholders.)
I am getting this output:
Invalid query
Node[7] has been deleted in this tx
(where Node[7]
is denoted for Photo object. Although it shows Node[7] deleted but thats not correct).
I changed my criteria to MATCH
node relationship as
MATCH pht-[r]-x
,MATCH pht-[r?:HAS | :taken_at]-x
,
MATCH pht-[r:HAS]-x, pht-[s:taken_at]-x
, but no result.
I went through this and official link, but I guess, I am little away from something.. Kindly help.