mhluongo

class Person(models.NodeModel):
    name = models.StringProperty()
    knows = models.Relationship('Person',
                                      rel_type = neo4django.Outgoing.KNOWS,
                                      related_name = 'is_known')
    
    def connections(self, depth=1):
        return [Person._neo4j_instance(node) \
            for node in self.node.traverse(types=[client.All.KNOWS], stop=depth)]

mhluongo

class Person(models.NodeModel):
    name = models.StringProperty()
    knows = models.Relationship('Person',
                                 rel_type = neo4django.Outgoing.KNOWS,
                                 related_name = 'is_known')
    
    def connections(self, depth=1):
        from neo4django.db.models import query
        from itertools import chain
        query.execute_select_related(models=[self], max_depth=depth)

mhluongo

>>> import jellyfish
>>> from soft_jaccard import soft_jaccard
>>> c1 = set(['CL Isbell','C. L. Isbell'])
>>> c2 = set(['C Isbell','C Isbell, Jr.'])
>>> soft_jaccard(c1, c2, jellyfish.jaro_winkler)
0.75848950260673509

mhluongo

class LazyBase(object):
    """
    A mixin to make elements of the REST client lazy.
    """
    def __init__(self, url, dic):       
        self._dont_update = True
        super(LazyBase, self).__init__(url, create=False)
        self._dic = dic.copy()
        self._dont_update = False

mhluongo

# a hack for `NodeA.objects.filter(nodeb__in=nodebnodes)`

from neo4django.db import connections
from neo4django.db.models.script_utils import LazyNode

# ...
b_nodes = set([...]) #your NodeB instances
b_node_ids = [b.id for b in b_nodes]

type_node_a = NodeA._type_node()

mhluongo

#!/bin/bash

VERSION='1.6'
DIR="neo4j-community-$VERSION"
FILE="$DIR-unix.tar.gz"
SERVER_PROPERTIES_FILE="lib/neo4j/conf/neo4j-server.properties"

if [[ ! -d lib/$DIR ]]; then
    wget http://dist.neo4j.org/$FILE
    tar xvfz $FILE &> /dev/null

mhluongo

from neo4django.db import models
import neo4django

class Concept(models.NodeModel):
    name = models.StringProperty(indexed=True)

class ContainerConcept(Concept):
    class Meta:
        abstract = True

mhluongo

vagrant@nettuno:~$ cd ~/builds
vagrant@nettuno:~/builds$ export TRAVIS_PULL_REQUEST=false
vagrant@nettuno:~/builds$ export TRAVIS_SECURE_ENV_VARS=false
vagrant@nettuno:~/builds$ export NEO4J_VERSION="1.6.3"
vagrant@nettuno:~/builds$ git clone --depth=100 --quiet git://github.com/mhluongo/neo4django.git mhluongo/neo4django
vagrant@nettuno:~/builds$ cd mhluongo/neo4django
vagrant@nettuno:~/builds/mhluongo/neo4django$ git checkout -qf 155c266129d2d587b39e5d7acff86b123c94dda7
vagrant@nettuno:~/builds/mhluongo/neo4django$ export TRAVIS_PYTHON_VERSION=2.6
vagrant@nettuno:~/builds/mhluongo/neo4django$ source ~/virtualenv/python2.6/bin/activate
vagrant@nettuno:~/builds/mhluongo/neo4django$ python --version

mhluongo

# a hack for pete.groups.filter(created_date__gt = datetime.date(2012,1,1), type__type = "Chess Club")

import datetime
import neo4django
from neo4django.db import models

class Person(models.NodeModel):
    auto_id = models.AutoProperty(indexed=True)
    groups = models.Relationship('Group', related_name='people',
                                 rel_type=neo4django.Outgoing.MEMBER_OF)

mhluongo

>>> import orcid
>>> cs_authors = orcid.search('computer science')
>>> print cs_authors.next()
<Author Olga Zhelenkova, ORCID 0000-0003-0028-2469>