Comments on Wardrobe strength: Seamless Neo4j integration in Django

Nevermind, I fixed it: First of all my problem wa...

2011-10-07T15:43:49.692+02:00

Nevermind, I fixed it:

First of all my problem was that I was keeping my neo4j database files in system folder, so the files could not be saved because of the permissions problems.

Another and mos annoying thing is the bug in [..]/site-packages/django/db/models/base.py where on line 460 , Model.save has got another argument from Django 1.2 named using. So I removed using=using on line 460 and now it works like charm.

Now, I have to figure out how to display neo4j database info on web page, sice I am beginner in Django as well :)
Cheers.
Isen

Hi Tobias, I am so desperate to get this work and...

2011-10-07T15:12:51.806+02:00

Hi Tobias,

I am so desperate to get this work and I would appreciate if you could hep me.

Everything goes fine for me: installation, creating project and starting app. But the problem comes when I try to create an object of Company (i.e seven_eleven = models.Company.objects.create(name="Seven Eleven") )

I get this error:

File "/sw/lib/python2.6/site-packages/django/db/models/manager.py", line 138, in create
return self.get_query_set().create(**kwargs)
File "/sw/lib/python2.6/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.6.egg/neo4j/model/django_model/__init__.py", line 362, in create
obj.save(force_insert=True)
File "/sw/lib/python2.6/site-packages/django/db/models/base.py", line 460, in save
self.save_base(using=using, force_insert=force_insert, force_update=force_update)
File "/sw/lib/python2.6/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.6.egg/neo4j/_util.py", line 47, in __get__
method, graphdb = self.descr_get(obj, cls)
File "/sw/lib/python2.6/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.6.egg/neo4j/_util.py", line 41, in descr_get
graphdb = self.accessor.__get__(obj, cls)
File "/sw/lib/python2.6/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.6.egg/neo4j/model/django_model/__init__.py", line 58, in __get__
return DjangoNeo.neo
File "/sw/lib/python2.6/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.6.egg/neo4j/model/django_model/__init__.py", line 124, in neo
return self.__setup_neo()
File "/sw/lib/python2.6/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.6.egg/neo4j/model/django_model/__init__.py", line 136, in __setup_neo
self.__neo = NeoService(resource_uri, **options)
File "/sw/lib/python2.6/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.6.egg/neo4j/__init__.py", line 522, in __new__
neo = core.load_neo(resource_uri, params)
File "/sw/lib/python2.6/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.6.egg/neo4j/_core.py", line 332, in load_neo
return load_neo(resource_uri, parameters)
File "/sw/lib/python2.6/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.6.egg/neo4j/_core.py", line 225, in load_neo
return GraphDatabase(resource_uri, settings, config, log)
File "/sw/lib/python2.6/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.6.egg/neo4j/_core.py", line 230, in __init__
neo = backend.load_neo(resource_uri, settings)
File "/sw/lib/python2.6/site-packages/Neo4j.py-0.1_SNAPSHOT-py2.6.egg/neo4j/_backend/__init__.py", line 74, in load_neo
return impl(resource_uri, implementation.make_map(settings))
File "/sw/lib/python2.6/site-packages/jpype/_jclass.py", line 79, in _javaInit
self.__javaobject__ = self.__class__.__javaclass__.newClassInstance(*args)
java.lang.RuntimeExceptionPyRaisable: org.neo4j.kernel.impl.transaction.TransactionFailureException: Could not create data source [nioneodb], see nested exception for cause of error

Can you please tell me what is wrong.

Thank in adcance

Hi Tobias, I've tried installing Neo4Django in...

2011-07-10T07:17:56.318+02:00

Hi Tobias,
I've tried installing Neo4Django in a couple of different environments and am not having good luck. Has there been any development in the code? I am curious to see if I can use it on my webhost (Dreamhost) but will keep working to see if I can get it running on my own server first.

Thank you!

@tom: thanks for notifying me. The project has bee...

2010-08-04T17:13:58.778+02:00

@tom: thanks for notifying me. The project has been rewritten with a different approach which can be found here:

http://www.allbuttonspressed.com/projects/django-nonrel

Waldemar, that link is broken... Tobias, are ther...

2010-08-04T16:52:27.994+02:00

Waldemar, that link is broken...

Tobias, are there any updates to the django code?

http://pppeoplepppowered.blogspot.com/2010/08/django-and-neo4j.html

Tom

What system configuration do you have, I faced som...

2010-06-26T10:29:58.116+02:00

What system configuration do you have, I faced some problems compiling "neo4j-python" step

(distutils.errors.DistutilsError: Setup script exited with error: command 'gcc' failed with exit status 1)

Thanks a lot! I'll try to use it )

2010-02-16T07:59:25.964+01:00

Thanks a lot! I'll try to use it )

I'm not sure if this is compatible with Neo4J,...

2010-01-07T20:58:39.036+01:00

I'm not sure if this is compatible with Neo4J, but we're working on non-relational DB support for Django's ORM. Join our project, here:
http://bitbucket.org/wkornewald/django-nonrel-multidb/

The wiki links to more information like a discussion group, blog, etc.

great news, gotta try it out!

2009-12-17T20:31:35.236+01:00

great news, gotta try it out!

@afd: Yes, the same approach (integrating in the m...

2009-12-15T09:17:27.845+01:00

@afd: Yes, the same approach (integrating in the model-layer rather than the db-layer) would be the easiest way for most databases where SQL is not the most efficient means of access. ZODB certainly falls into that category.

I wonder if your work for neo4j integration with D...

2009-12-15T08:01:42.349+01:00

I wonder if your work for neo4j integration with Django could also be translated into integration with ZODB, a somewhat similar database for Python objects.