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Questions tagged [neo4j.rb]

Neo4j.rb is an Active Model compliant Ruby/JRuby wrapper for the Neo4j graph database. It uses the neo4j-core and active_attr gems.

Neo4j.rb is an Active Model compliant Ruby/JRuby wrapper for the Neo4j graph database.

https://github.com/neo4jrb/neo4j

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Server not available on localhost with response code 403 & RuntimeError in Ruby on Rails

After changing proxy settings in open_uri.rb and server_manage.rb I finally managed to install neo4j behind a proxy server. The neo4j server is running on port 7000 ( It opens in the browser) but when i enter : $rails generate scaffold post title…
dulla
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Ruby on Rails neo4j error connecting to database

I am learning to use neo4j with rails using the neo4jrb project: https://github.com/neo4jrb/neo4j/wiki/Neo4j-v3-Setup#usage-from-rails As given in instructions i did rails new testdb_app -m http://neo4jrb.io/neo4j/neo4j.rb -O Since i already have…
Vikash Balasubramanian
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Neo4jrb - NameError: uninitialized constant Neo4j::ActiveNode::Query::QueryProxy::ANSI

I am fetching and author Albert Camus. For this author I want to retrieve all work of arts he created (which books he wrote). But I am getting the error "NameError". Here are the details: Loading development environment (Rails…
LDB
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Neo4j - pagination with kaminari - stack level too deep

I have many authors (as nodes) authoring multiple Work of Arts (wokas), also as nodes. I want to fetch the authors on page 100, 5 authors per page. For the first author from those five selected I want to know the first work of art authored. Here is…
LDB
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IN query based on node id - Neo4j

how,can i get the node details of the below id in optimized manner val = [2,4,5,6,34,32,34,54,54,31] I tried as, WITH [2,4,5,6, ..] AS coll UNWIND coll AS x match p=(s.... return p I cant able to get it
Dheena
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java.lang.IllegalStateException: Database locked

I have a problem with my neo4j database. I have a ruby on rails app with neo4jrb gem running with torquebox. I would like to read and write in my database with a torquebox job. But i have this error : java.lang.IllegalStateException: Database…
Airclo
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neo4jrb how to reset transaction timeout of an open transaction

Currently using neo4j-community-2.1.7 I understand that the facility has been included in this version. Have been unable to find any reference to it in the ruby docs. Would appreciate it very much if I may have some direction on how to reset the…
Ross
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Neo4jRB: updating node data?

Looking at ActiveNode's persistence.rb, it seems like there's no update() or equivalent. How does one update the data of a particular node?
David Chouinard
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Neo4j - How to set DEV ENV to point to an AWS database

I created a new app in Rails using: rails new myapp -m http://neo4jrb.io/neo4j/neo4j.rb -O I did not executed the command: rake neo4j:install[community-2.2.0,development] since my database is already created, populated and hosted by an AWS…
LDB
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Neo4jRB: Searching through all associations?

Consider this simple setup: class Person include Neo4j::ActiveNode property :name, type: String has_many :out, :follows, model_class: Person, rel_class: Friendship has_many :in, :followed_by, model_class: Person, rel_class:…
David Chouinard
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Neo4j.rb default integer value

i've a problem with finding all the nodes that are invalids. here's the class : class MyNode include Neo4j::ActiveNode property :name property :is_valid, type: Integer, default: 0 end When my nodes are created the property is not set…
armedwing
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How can I create unique relationships based on a model in neo4j.rb?

I have tried to use has_many :in, :ratings, unique: true, rel_class: Rating But that unique: true is ignored because I have a model class for the relationship. How can I make sure that if my Users rate Articles, their rating gets updated instead of…
Joe Eifert
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return certain fields first in elastic search

I have a Rails application with term => definitions stored in nodes on Neo4j that I want my users to search using elastic search. Through usage we've found they far more commonly want to find the term name first before they want to search the…
Ryan Snodgrass
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Neo4j.rb slow queries

I have Neo4j v2.1.6 (default configuration) and Neo4j.rb v4.1.0. All queries are slow around 50ms. I have only 5 nodes in db. For example: User.find_by(person_id: 826268332) CYPHER 47ms MATCH (n:`User`) WHERE (n.person_id = {n_person_id}) RETURN n…
user1657173
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Neo4j gem - Delete duplicate relationships

I accidentally created duplicate relationships... now I need to delete them. We got some crazy stuff going on in a cypher answer here how do I delete duplicate relationships between two nodes with cypher? At first my mind wandered to finding the…
Clam
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