rom-neo4j | Experimental integration of Neo4j with Ruby Object Mapper | Graph Database library

by rom-rb Ruby Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(4)Vulnerabilities Install Support

kandi X-RAY | rom-neo4j Summary

rom-neo4j is a Ruby library typically used in Database, Graph Database, Neo4j applications. rom-neo4j has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Experimental integration of Neo4j with Ruby Object Mapper

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Quality

Security

License

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Support

rom-neo4j has a low active ecosystem.

It has 23 star(s) with 1 fork(s). There are 18 watchers for this library.

It had no major release in the last 6 months.

There are 3 open issues and 0 have been closed. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of rom-neo4j is current.

Quality

rom-neo4j has 0 bugs and 0 code smells.

Security

rom-neo4j has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

rom-neo4j code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

rom-neo4j does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

rom-neo4j releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

rom-neo4j saves you 131 person hours of effort in developing the same functionality from scratch.

It has 330 lines of code, 31 functions and 14 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

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rom-neo4j Key Features

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rom-neo4j Examples and Code Snippets

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Community Discussions

Trending Discussions on rom-neo4j

Order the result by the number of relationships

Neo4j - extract all subgraphs from neo4j database

OrientDb: Error while importing Neo4J database through GraphML importation

failure trying to shorten CASE-based predicate

QUESTION

Order the result by the number of relationships

Asked 2020-Aug-18 at 17:20

I have a directed multigraph. With this query I tried to find all the nodes that is connected to node with the uuid n1_34

...

ANSWER

Answered 2020-Aug-16 at 19:57

This query should do what you need :

Source https://stackoverflow.com/questions/63427242

QUESTION

Neo4j - extract all subgraphs from neo4j database

Asked 2018-Nov-23 at 19:50

I have a similar question to the one asked here, however, the solution proposed didn't work for me.

My Neo4j database has a lot of sub-graphs, each one of them contains varying number of nodes.

I would like to extract some kind of a list which will contain all sub-graphs separated.

In the example given, I would like to get 3 groups, where each group contains all the nodes in the sub-graph which the group represents.

How can I get all groups of nodes by Cypher query?

All the solutions that I have found for this problem require "root" node which I don't have in this case.

...

ANSWER

Answered 2018-Nov-23 at 19:50

You could use graph algorithms plugin and specifically connected components algorithm to label all the isolated subgraphs in your graph and then export them and group them later when exported by set id.

Example:

create a sample graph

Source https://stackoverflow.com/questions/53447957

QUESTION

OrientDb: Error while importing Neo4J database through GraphML importation

Asked 2018-Feb-21 at 13:42

I'm trying to import a Neo4j database, I'm following these steps:

Export the Neo4j database to a graphml file as explained in this page: Import from Neo4j using GraphML
Import the graphml file to a new database in OrientDb.

I receive the following error:

...

ANSWER

Answered 2018-Feb-21 at 13:42

You are following an deprecated process to import from Neo4j to OrientDB. From the docs linked by you:

This is a legacy strategy to migrate from Neo4j. The new strategy is to migrate using the Neo4j to OrientDB Importer.

You should use the new "Neo4j to OrientDB Importer" strategy, presented in this link.

Source https://stackoverflow.com/questions/48904431

QUESTION

failure trying to shorten CASE-based predicate

Asked 2017-Nov-27 at 08:43

This was inspired by these two SO threads:

Boolean value return from Neo4j cypher query without CASE

How to set property name and value on csv load?

I have a CSV with 3 columns:

first_name,prop_name,prop_value

John,weight,100

Paul,height,200

John,hair_color,blonde

Paul,weight,120

So, there are a number of people, and their properties are randomly scattered across different rows. My goal is to screen the rows and assign all found properties to their holders. For the sake of simplicity, let's focus on the 'weight' property only.

I do know how to make this work the long way:

...

ANSWER

Answered 2017-Nov-27 at 08:43

You should know that your current usage filters out all lines that don't have "weight" as the prop_name (the UNWIND of an empty collection wipes out all the other lines and they won't get processed).

What you really need is a better way to set dynamically named properties on your nodes so you can avoid the CASE usage completely.

If you can install APOC Procedures (please read the instructions at the top for how to modify your neo4j.conf to whitelist the procedures, and pay attention to the version matrix to ensure you get the version that corresponds with your Neo4j version) there is one that is a perfect fit for what you're trying to do: CALL apoc.create.setProperty( [node,id,ids,nodes], key, value) YIELD node

Usage would be something like:

Source https://stackoverflow.com/questions/47504724

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install rom-neo4j

Or add the dependency to your Gemfile:. Right now, the fastest way to get started is to run the tests.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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