neomodel
An Object Graph Mapper (OGM) for the neo4j graph database, built on the awesome neo4j_driver
- Familiar class based model definitions with proper inheritance.
- Powerful query API.
- Schema enforcement through cardinality restrictions.
- Full transaction support.
- Thread safe.
- Pre/post save/delete hooks.
- Django integration via django_neomodel
Documentation
Available on readthedocs.
Requirements
- Python 3.5+ - Neo4j Python Driver 4.1 https://neo4j.com/docs/api/python-driver/current/
- neo4j 3.5, 4.0, 4.1 - Neo4j Python Driver 4.1 https://neo4j.com/docs/api/python-driver/current/
Installation
Install from pypi (recommended):
$ pip install neomodel ($ source dev # To install all things needed in a Python3 venv)
To install from github:
$ pip install git+git://github.com/neo4j-contrib/neomodel.git@HEAD#egg=neomodel-dev
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
