neomodel | An Object Graph Mapper for the Neo4j graph database | Graph Database library
kandi X-RAY | neomodel Summary
kandi X-RAY | neomodel Summary
An Object Graph Mapper (OGM) for the Neo4j graph database.
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Top functions reviewed by kandi - BETA
- Adds a property to the query
- Return a mapping of properties to properties
- Instantiate a node
- Get the properties of a node
- Instantiate a rel from a relation
- Deflate a dictionary of properties
- Install Traversal Object
- Matches relationship
- Process filter arguments
- Delete the object
- Run a cypher query
- Execute a cypher query
- Perform pre action checks
- Decorator that ensures connection to database
- Fetch an object from the database
- Get single node from the collection
- Disconnect node from node
- Decorator to turn a function into a hook
- Exclude nodes from the tree
- Return a new NodeSet according to the given properties
- Matches current traversal
- Decorator to check the source
- Get a node from the tree
- Execute query
- Returns a list of all users
- Returns all entities in the database
neomodel Key Features
neomodel Examples and Code Snippets
Lines of Code : 13License : Strong Copyleft (CC BY-SA 4.0)
Copyfrom neomodel import config
user = 'neo4j'
psw = 'awesome_password'
uri = 'awesome.databases.neo4j.io'
config.DATABASE_URL = 'neo4j+s://{}:{}@{}'.format(user, psw, uri)
print(config.DATABASE_URL)
Result:
neo4j+s://neo4j:awesomeFROM python:3.6-stretch
root@64118c352a3e:/app# python
[GCC 6.3.0 20170516] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> print(sys.path)
['', '/app', '/usr/local/lib/python37.zip', '/usr/locadb.cypher_query(query, params)
MATCH ()-[rel]-() WHERE rel.uid={{uid}} DELETE rel
def myfoo(*arg, **karg):
print arg, karg
def myfoo(a, *arg):
return a, arg
myfoo(11,22,33)
>> (11, [22, 33])
myfoo(11)
>> (11, [])
def myfoo(a=11, b=22, **kargs):
r@api.errorhandler(DoesNotExist)
def handle_user_does_not_exist_error(error):
return ({'message': 'Could not locate a user with the user_id provided.'}, 404)
class User(StructuredNode):
user_id = StringProperty(unique_index=True, required=True)
logged_in = RelationshipTo('Environment', 'LOGGED_IN', model=LoginAction)
launched = RelationshipTo('Application', 'LAUNCHED', model=LauncheGraphDatabase.driver('bolt://' + hostname, auth=basic_auth(username, password), encrypted=True)
Community Discussions
Trending Discussions on neomodel
QUESTION
Is it possible to connect to AuraDB with neomodel?
AuraDB connection URI is like neo4j+s://xxxx.databases.neo4j.io.
This is not contained user/password information.
However, connection config of neomodel is bolt and it is contained user/password information.
config.DATABASE_URL = 'bolt://neo4j:password@localhost:7687'
ANSWER
Answered 2022-Mar-01 at 16:13Connecting to neo4j Aura uses neo4j+s protocol so you need to use the provided uri by Aura.
Reference: https://neo4j.com/developer/python/#driver-configuration
In example below; you can set the database url by setting the userid and password along with the uri. It works for me so it should also work for you.
QUESTION
I'm using Django with Neomodel and django_neomodel to connect to AuraDB and fetch data. In my views I'm doing:
...ANSWER
Answered 2022-Feb-19 at 15:22Maybe you should change the class attribute 'has'. I met this problem when using 'source' as attribute name and solved it by changing a new name.
QUESTION
I have a graph database where each Sentence node has an embeddings property which is an array of length 768. What I want to do is create a property in each of these node which is an aggregation of average of all the neighboring nodes' embeddings.
Basically,
...ANSWER
Answered 2021-Sep-01 at 16:45I was able to do this with the following query:
Note: embedding is an array of floats
QUESTION
I'm trying to do a simple project in Django using the Neo4j database. I've installed a django-neomodel library, set the settings as follows:
ANSWER
Answered 2021-Apr-05 at 10:12Well, after some research I've found this post Docker-compose: db connection from web container to neo4j container using bolt and the problem has been solved.
QUESTION
I am trying to connect a graph base to a project tiangolo/full-stack-fastapi-postgresql. But every time I come across an import error. Please tell me, maybe someone faced a similar problem. Backend launch log:
...ANSWER
Answered 2020-Nov-16 at 23:31The requirements for neomodel state that it requires neo4j 3.0, 3.1, 3.2, or 3.3
See the documentation: https://neomodel.readthedocs.io/en/latest/#requirements
QUESTION
I'm working on django project with neo4j db using neomodel and django-neomodel. I'm trying to containerize it using docker-compose. when I build the images everything seems fine, but any connection from web container to db using bolt is refused. although I can access the neo4j db from the browser on http, and even from local machine on bolt. this is the error I get:
neo4j.exceptions.ServiceUnavailable: Failed to establish connection to ('127.0.0.1', 7688) (reason 111)
I'm using the following configs:
...ANSWER
Answered 2020-Oct-11 at 22:12To connect from one container to another one (inside the same docker-compose project) you should use container name of the target container instead of the localhost (or 127.0.0.1). In your case it would be
neo4j_db.When connecting from other container you should use the internal port, in your case 7687.
In the neo4j service, the
bolt.listen_addressshould be 7687 instead of 7688 (honestly, I'm not sure why you are changing the default port).
To wrap up, the connection url should be:
QUESTION
I have 2 different containers running with docker-compose. Here is my docker-compose.yml:
...ANSWER
Answered 2020-Aug-28 at 16:35You need to set the network option on your docker-compose file. Please read this link and then you will understand it well.
You should do something like this:
QUESTION
I started a local neo4j server and work with it using Python (PyCharm) and installed all the necessary modules (neo4j, py2neo and neomodel) Use Python 3.8.
ANSWER
Answered 2020-Apr-13 at 22:34Probably you have wrong PyCharm Interpreter configuration and/or Run Configuration.
Try running code with console command from Terminal, not from PyCharm.
QUESTION
On my MacBook (version 10.14.6) I am succesfully running a Django application including TensorFlow and tf-sentencepiece (in particular to use the universal sentence encoder model). When I perform a pipenv lock -r > requirements.txt I get the following required packages:
ANSWER
Answered 2020-Jan-09 at 09:54I have no skills in Django, but it seems that tensorflow is trying to find a package (with a strange name) and failing.
I'd first suggest to try and fix your docker container setup, and check that pipenv lock -r yield the same result inside and outside your container.
1) as you said in the commentaries, on the host pc
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install neomodel
You can use neomodel like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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