I understand and agree with you. In my case, i could use unidirectional. Thanks Michael! I'll have fun with neo4j now!
Best, Diego On 14/07/2011, at 12:30, Michael Hunger wrote: > #1 good question that depends on your use case, i would probably switch > exchange the relationship, as this makes it much clearer in the domain model > and is faster to traverse too. The change operation itself is more expensive > though, but that happens just once (or never). > > #2 as relationships between nodes in neo4j can be traversed in either > direction, you don't have to create bidirectional relationships per se, only > if your domain modeling makes it necessary / obvious that there are 2 > different relationships (from me to you and from you to me) then it makes > sense. > > Cheers > > Michael > > Am 14.07.2011 um 16:59 schrieb Diego Alvarez Nogueira: > >> Very Nice! thanks Michael! >> >> About #3 question: >> 1- What's the best option? should i change de relationship name(knows to >> friend) or create a property "accepted"? >> 2- I need to create a mutual relationship between friends? >> >> thanks for you help >> >> Best, >> Diego >> >> On 14/07/2011, at 11:23, Michael Hunger wrote: >> >>> Hi Diego, >>> >>> what is your current runtime, deployment environment? >>> >>> #1 You can also use Neo4j.rb with the embedded database for direct access >>> without HTTP roundtrips if that suits your needs. >>> >>> You can have either two copies of your neo4j servers running on different >>> ports, or you can modify the startup script to take a "store-location" >>> parameter (instead of pulling it out of the neo4j-server.properties file). >>> >>> #2 I wrote a server addon that you can deploy to your dev-server to clean >>> the db with a single rest-request: >>> https://github.com/jexp/neo4j-clean-remote-db-addon >>> >>> We're also currently working on a way to deploy server-side ruby code (e.g. >>> sinatra or rails apps) into a running neo4j server. So that you can use >>> neo4j.rb there for direct access and expose your domain specific REST >>> endpoints to your "frontend"-webapp (which just does REST requests to your >>> specific endpoints, talking your domain protocol and not nodes + >>> relationships). >>> >>> If you're interested in that just ping me. >>> >>> #3 You could create preliminary relationships between people of the type >>> "knows", which on acceptance is replaced by a relationship with the type >>> "friend". >>> This could be also be done with a boolean property ("accepted")on the >>> relationship. >>> >>> #4 yes likes are relationships between users and things/users. For tags it >>> depends what you want to do with those and how dynamic those should be. You >>> can create tag nodes and link them to the things that have been tagged, >>> which makes it easy to traverse them for retrieval or recommendations (of >>> users or things to know). If it is just a simple categorization, you might >>> just index the tags + id's of tagged things. >>> >>> #5 good question probably redis. >>> >>> Cheers >>> >>> Michael >>> >>> >>> Am 14.07.2011 um 15:56 schrieb Diego Alvarez Nogueira: >>> >>>> Hi, >>>> I'm new in NoSql, specifically graphs databases. >>>> Today, i have a social network using ruby on rails and mysql, but i need >>>> to scale and improve the performance of them. >>>> So, I have studied a lot during this month about NoSql and i'm really >>>> excited to use it. >>>> >>>> I've thought in migrate my application to: >>>> Ruby on rails: Using neography gem >>>> MongoDB: To store users, groups, comments, posts, internal messages; >>>> Neo4j: To store all the relationships, like, friendships, participations, >>>> likes, reputations, recommendations and tags. >>>> Redis: Cache >>>> >>>> I have some doubts, anyone can help me? >>>> >>>> 1- How can i work with neo4j in development and test environment(unit >>>> tests)? Do i have to have two neo4j-server folders and start separetely? >>>> 2- How can i clean all database each test? >>>> 3- What's the best way to work with friendships that depends of acceptance? >>>> 4- Neo4j is the best database to store tags and likes? >>>> 5- What's the best database to store statistics and feeds? >>>> >>>> Thanks! >>>> >>>> Best, >>>> Diego Nogueira >>>> >>>> >>>> -- >>>> Atenciosamente, >>>> >>>> Diego Alvarez Nogueira >>>> Blog: http://diegonogueira.com.br | http://papoinformal.com >>>> Skype: nogueiradiego >>>> Twitter: @nogueiradiego >>>> >>>> _______________________________________________ >>>> 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 >> >> >> >> -- >> Atenciosamente, >> >> Diego Alvarez Nogueira >> Blog: http://diegonogueira.com.br | http://papoinformal.com >> Skype: nogueiradiego >> Twitter: @nogueiradiego >> >> _______________________________________________ >> 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 -- Atenciosamente, Diego Alvarez Nogueira Blog: http://diegonogueira.com.br | http://papoinformal.com Skype: nogueiradiego Twitter: @nogueiradiego _______________________________________________ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
