nelsonwittwer / morpheus

Neo4j ISQ Backend Experiment

Morpheus

An experimental ISQ backend built on Neo4j.

Setup

Morpheus depends on a running Neo4j database running locally. Download and start Neo4j before starting Morpheus. Make sure you are just using the default localhost/port that comes with Neo4j.

Data

While Morpheus has a basic sqlite database, it is primarily configured to write to the neo4j databsae. The sqlite interface is maintained to leverage active_model functionality.

Here is an example of what you can do with this stack:

jim = Student.create!(:name => "Jim")
jim.assessments << Assessment.create

jim.neo_node                # => #<Neography::Node…>
jim.neo_node.name           # => "jim"

rel = jim.completed_assessments.first.neo_relationship
rel.start_node  #  => #<Neography::Node ar_id=1, neoid_unique_id="Student:1", name="Jim", ar_type="Student"> 
rel.end_node    #  => #<Neography::Node ar_id=1,neoid_unique_id="Assessment:1", ar_type="Assessment">
rel.rel_type    #  => "completed_assessments"

What is Working Currently

Students, Assessment, and the connection between the two work in the rails console. I'll need to modify the controllers to make these work via the views.

What we would need to make this work on TinkerPop Stack

1. We'll need to create our own gem that mimics much of the functionality of the Neoid gem, but is not so coupled to Neo4j.
2. Neoid, the gem that writes to neo4j, does so via the Neography gem. We would need to to move this functionality to either the Rexpro gem, or mimic the Neography gem to write to Rexster via HTTP.