Neo4j OGM Bundle

This bundle provides a simple integration of the "Neo4j PHP Object Graph Mapper" from Louis-Philippe Huberdeau into Symfony2. The Neo4j OGM is an object management layer built on top of Josh Adell's Neo4jPHP. It allows manipulation of data inside the Neo4j graph database through the REST connectors.

Installation

To install this bundle, add this to your project's composer.json:

"require": {
    // ...
    "klaussilveira/neo4j-ogm-bundle": "dev-master",
}

Next, update your vendors by running:

$ composer update

Now enable the bundle in the kernel:

<?php
// app/AppKernel.php

public function registerBundles()
{
    $bundles = array(
        // ...
        new Neo4j\OGM\OGMBundle\Neo4jOGMBundle(),
    );
}

And configure the bundle by adding the neo4j_ogm namespace into config.yml:

neo4j_ogm:
    host: 'localhost'
    port: 7474

Congratulations! You're ready to use Neo4j OGM into Symfony2.

Basic Usage

The only thing to do is to request the neo4j.manager service from the container to get an instance of HireVoice\Neo4j\EntityManager.

<?php

$em = $this->container->get('neo4j.manager');
$repo = $em->getRepository('Entity\\User');
$john = $repo->findOneByFullName('John Doe');

$list = $em->createCypherQuery()
    ->startWithNode('john', $john)
    ->match('john -[:follow]-> followedBy <-[:follow]- similarInterest')
    ->match('similarInterest -[:follow]-> potentialMatch')
    ->end('potentialMatch', 'count(*)')
    ->order('count(*) DESC')
    ->limit(10)
    ->getList();

Configuration

You can easily configure the Neo4j OGM by changing neo4j_ogm on your config.yml:

neo4j_ogm:
    transport: 'curl'
    host: 'localhost'
    port: 7474
    username: 'test'
    password: '123456'
    proxy_dir: '/tmp'
    debug: true