neomodel-next 3.5.3.0

An object mapper for the neo4j graph database.

An Object Graph Mapper (OGM) for the neo4j graph database, built on the awesome neo4j_driver

• Familiar Django model style definitions.

• Powerful query API.

• Enforce your schema through cardinality restrictions.

• Full transaction support.

• Thread safe.

• pre/post save/delete hooks.

• Django integration via django_neomodel

Documentation

Available on readthedocs.

Requirements

• Python 3.6+

• neo4j 3.0, 3.1, 3.2, 3.3

Installation

Install from pypi (recommended):

$ pip install neomodel-next

To install from github:

$ pip install git+git://github.com/MardanovTimur/neomodel-next.git@HEAD#egg=neomodel-next-master

Upgrading 2.x to 3.x

• Now utilises neo4j_driver as the backend which uses bolt so neo4j 3 is required

• Connection now set through config.DATABASE_URL (see getting started docs)

• The deprecated category() method on StructuredNode has been removed

• The deprecated index property on StructuredNode has been removed

• The streaming=True flag is now irrelevant with bolt and produces a deprecation warning

• Batch operations must now be wrapped in a transaction in order to be atomic

• Indexing NodeSets returns a single node now as opposed to a list

Contributing

Ideas, bugs, tests and pull requests always welcome.

Running the test suite

Make sure you have a Neo4j database version 3 or higher to run the tests on. (it will wipe this database for each test run):

$ export NEO4J_BOLT_URL=bolt://neo4j:neo4j@localhost:7687 # (the default)

Setup a virtual environment, install neomodel for development and run the test suite:

$ virtualenv venv
$ source venv/bin/activate
$ python setup.py develop
$ pytest

If your running a neo4j database for the first time the test suite will set the password to ‘test’.

If you have docker-compose installed, you can run the test suite against all supported Python interpreters and neo4j versions:

# in the project's root folder:
$ ./tests-with-docker-compose.sh