Couldn't you use edges for "tags" instead of nodes? user1 --tag--> link1 user2 --tag--> link1 user1 --tag--> link2
On Wed, Jun 8, 2011 at 10:23 PM, Aseem Kishore <aseem.kish...@gmail.com>wrote: > Hi guys, > > We're thinking about implementing tags in our system, and we're pondering a > few ideas for how we'd go about it, and none of them seem perfect. I'd like > to ask you guys: how would you design an analogous case: Del.icio.us? > > At the core, *users bookmark links*, so it makes sense to have "users" and > "links" as types of nodes, and "bookmark" as the type of edge that connects > them. Now, you can see all the links a given user has bookmarked, and all > the users that have bookmarked a given link. > > Now users can also *tag* links, of course, but the most interesting > requirement is that, when I'm looking at *my links*, I only want to see *my > tags*. Thus, tags can't be tied just to links; they have to be tied to > users > too. But most importantly, you have to maintain *which* user and *which* > link *each* tag is for. > > Thus, it seems most intuitive to us if we could have "tags" be nodes > that *point > to the "bookmark" edges*. Unfortunately, that's a hypergraph, which Neo4j > doesn't support. > > We could use intermediate nodes for bookmarks maybe, but that sort of sucks > to lose the intuitiveness of the graph and introduce redundant edges, more > complexity which makes consistency harder, etc. > > We have some other ideas, but I'm curious if any of you guys have thought > about this already or have done it, or if you guys have thoughts. Thanks in > advance! > > Aseem > _______________________________________________ > Neo4j mailing list > User@lists.neo4j.org > https://lists.neo4j.org/mailman/listinfo/user > _______________________________________________ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
