James, Would a simple check in a new REST endpoint to the job or do you think this should be further down in the index configuration supporting unique properties and throwing an exception or silently update a property if a second insertion call comes?
/Peter On Saturday, August 6, 2011, espeed <[email protected]> wrote: > Hi - > > The issue of unique indices came up several times earlier this summer: > > http://neo4j.org/forums/#nabble-td3047393 > http://neo4j.org/forums/#nabble-td3148364 > http://lists.neo4j.org/pipermail/user/2011-June/009809.html > > And Mattias created a support ticket: > > http://help.neo4j.org/discussions/questions/8-re-neo4j-unique-constaint-on-index > > Has anything become of this? > > Being able to do a "create or update" on unique properties would be very > useful when working with social graph data from Facebook and Twitter. > > For example, when creating a social app that uses the Facebook graph or the > Twitter authentication APIs, it's common to create nodes for all the > Facebook friends and Twitter followers so the FB user ID and Twitter > username are stored as properties for each "Person" node. > > If two users have the same friend or follower, the node is already going to > exist on insert. Rather than query for the existence of each node, it would > be better to just update the node if one already exists with that Facebook > ID. > > Likewise, being able to mark an edge as unique and update it rather than > create a dupe if an edge already exists with the same inV, label, and outV > (or a unique property) -- for example, you wouldn't want to recreate the > edge on the "create or insert" if the node already exists. > > Thoughts? > > - James > > > -- > View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Are-Unique-Indices-in-the-Works-tp3229971p3229971.html > Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. > _______________________________________________ > Neo4j mailing list > [email protected] > https://lists.neo4j.org/mailman/listinfo/user > -- Cheers, /peter neubauer GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://startupbootcamp.org/ - Öresund - Innovation happens HERE. http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
