You could also use a post-filter, i.e. check the resulting nodes together against your user.
But in general yes you'd have to use something like this. Alternatively you could also set a "owner" property on all data and only have the user see their data. On Thu, Jul 26, 2018 at 5:47 PM, Juha Mäkeläinen <juha.makelai...@iki.fi> wrote: > Hello! We are wondering how to implement user views in our system. Each > our users have their own set of genealogical data. The users mostly access > only their own working data (which may be later merged to common data after > approval). Their data nodes are identified by linking them to the "User" > node. > > Is the only way to write User match in my Cypher clauses? Could I somehow > define a pre-filtered active subgraph, where cypher clauses are applied > (reminding sql view, which is'nt available in Neo4j, see > https://groups.google.com/d/msg/neo4j/kFa8_ZJYzEM/0KuulGphrTYJ)? > > Example: In a query `match (p:Person) --> (e:Event) <-- (n:Place)` each > p, e, n are owned by current user. My solution is quite cumbersome: > > match (u:User {name:"John"}) > with u > match (u) --> (p:Person), (u) --> (e:Event), (u) --> (x:Place) > with p, e, x > match (p) --> (e) --> (x) > return p.id, e.id, x.id > > The same User match (the first 4 lines) must ne written in all my Cypher > clauses. > > -- > You received this message because you are subscribed to the Google Groups > "Neo4j" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to neo4j+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Neo4j" group. To unsubscribe from this group and stop receiving emails from it, send an email to neo4j+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
