Very nice, thanks. A follow-on question: Since I want to later search for nodes by their mysql_id, do I need to create an index and add the mysql_id to that index? It appears as if that is the only way to efficiently find nodes by a key other than their neo generated ID. Before I went down the path of creating indexes, I wanted to make sure that is the correct approach.
It also appears as if the neography gem does not support index creation. I can easily curl the index creation so it is not a significant issue. I just wanted to make sure that I am not missing something in my understanding of neography. thanks again. Charlie White Avvo, Inc. 1218 Third Avenue, Suite 300neo.get_node_relationships( Seattle, WA 98101 On Tuesday 22 February 2011 7:48:35 pm Max De Marzi Jr. wrote: > Here you go... > > Full code with setup: > > https://github.com/maxdemarzi/neography/blob/master/examples/traversal_exam >ple2.rb > > Interesting bit: > > def graduated_with_me(student) > student = student["self"].split('/').last > student_attended = @neo.get_node_relationships(student)[0] > graduated = student_attended["data"]["graduated"] > school = student_attended["end"].split('/').last > > @neo.traverse(school,"nodes", {"order" => "breadth first", > "uniqueness" => "node global", > "relationships" => {"type"=> > "attended", "direction" => "in"}, > "return filter" => { > "language" => "javascript", > "body" => "position.length() == > 1 && > position.endNode().getId() != #{student} > && > position.lastRelationship().getProperty(\"graduated\") == > #{graduated};"}}) > end > > > Visualize it (sort of... I need to add relationship properties): > http://neovigator.heroku.com/?neoid=201 > > Neo4j guys, how do we use the new Evaluator via Rest? > > Thanks, > Max > > On Tue, Feb 22, 2011 at 6:50 PM, charlie <[email protected]> wrote: > > Hi, > > I am new to neo4j and I am having some difficulty figuring out how to > > query it to get me what I need. We are using Ruby and not JRuby so I am > > trying to do all my queries via the REST API. > > > > Currently I have a set of "people" nodes and a set of "school" nodes. > > Each node has an id field and a name. The ID field is not to be > > confused with the ID field assigned by neo, but rather a key into a > > relational database elsewhere. > > I have created a people and school index so I can find the nodes by ids > > curl -H Accept:application/json > > http://localhost:7474/db/data/index/node/person/person_id/28995 > > > > I have also created relationships between each person and school called > > "attended". I set a graduation date and degree name as attributes of > > each attended relationship. > > > > The query that I want to find all people that attended the same school as > > I did and graduated at the same time. > > person => school => person1, person2, ... personN. > > > > > > More advanced: > > Later I might want to add to that people with the same degree as well as > > graduation date. And, after that, I would probably want to find > > "friends" of those same people. Of course that implies that I added a > > relationship of "firend" between people. > > > > Any help that you can provide me on this would be helpful. I think that > > once I get started with a couple of examples, I will be able to take off. > > > > thanks, > > > > Charlie White > > Avvo, Inc. > > 1218 Third Avenue, Suite 300 > > Seattle, WA 98101 > > _______________________________________________ > > Neo4j mailing list > > [email protected] > > https://lists.neo4j.org/mailman/listinfo/user > > _______________________________________________ > Neo4j mailing list > [email protected] > https://lists.neo4j.org/mailman/listinfo/user _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
