Django MongoDB Engine error when running tellsiteid

StackOverflow https://stackoverflow.com/questions/8819456

Question

SO I created a django project and app as per the tutorial and I have all the dependencies necessarry for MongoDB Engine it all seemed to be working fine and dandy till I tried enabling the admin interface.

I uncommented the require bits, and added 'django_mongodb_engine' and 'djangotoolbox' to the apps section in settings.py

When I try to get into localhost:8000/admin I get an error:

"AutoField (default primary key) values must be strings representing an ObjectId on MongoDB (got u'1' instead). Please make sure your SITE_ID contains a valid ObjectId string."

After some googling apparently I have to run manage.py tellsiteid and it'll spit me an ID I can use within my settings.py that will make the error go away, but when I try to run manage.py tellsiteid I get:

Traceback (most recent call last):
File "./manage.py", line 14, in <module>
execute_manager(settings)
File "/Users/holografix/.virtualenvs/django_nonrel_env/lib/python2.7/site-   packages/django/core/management/__init__.py", line 438, in execute_manager    utility.execute()
File "/Users/holografix/.virtualenvs/django_nonrel_env/lib/python2.7/site-packages/django/core/management/__init__.py", line 379, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Users/holografix/.virtualenvs/django_nonrel_env/lib/python2.7/site-packages/django/core/management/base.py", line 191, in run_from_argv
self.execute(*args, **options.__dict__)
File "/Users/holografix/.virtualenvs/django_nonrel_env/lib/python2.7/site-packages/django/core/management/base.py", line 220, in execute
output = self.handle(*args, **options)
File "/Users/holografix/.virtualenvs/django_nonrel_env/lib/python2.7/site-packages/django/core/management/base.py", line 351, in handle
return self.handle_noargs(**options)
File "/Users/holografix/.virtualenvs/django_nonrel_env/lib/python2.7/site-packages/django_mongodb_engine/management/commands/tellsiteid.py", line 8, in handle_noargs
site_id = self._get_site_id()
File "/Users/holografix/.virtualenvs/django_nonrel_env/lib/python2.7/site-packages/django_mongodb_engine/management/commands/tellsiteid.py", line 19, in _get_site_id
return Site.objects.get().id
File "/Users/holografix/.virtualenvs/django_nonrel_env/lib/python2.7/site-packages/django/db/models/manager.py", line 132, in get
return self.get_query_set().get(*args, **kwargs)
File "/Users/holografix/.virtualenvs/django_nonrel_env/lib/python2.7/site-packages/django/db/models/query.py", line 351, in get
% self.model._meta.object_name)
django.contrib.sites.models.DoesNotExist: Site matching query does not exist.
Was it helpful?

Solution

You haven't created any Site yet. Run manage.py syncdb to create one.

OTHER TIPS

You can create your site, and then, get the id:

python ./manage.py shell

>>> from django.contrib.sites.models import Site
>>> s = Site()
>>> s.save()

and then:

python ./manage.py tellsiteid

If you do not need the sites functionality (which is very probable) simply turn off django.contrib.sites app and it will fix MongoDB issues related to the SITE_ID:

INSTALLED_APPS = (   
    (...)
    # 'django.contrib.sites',  # Comment this out
    (...)
)

For some reason none of the solutions here worked for me. python ./manage.py tellsiteid, there was no django_site collection, and commenting out 'django.contrib.sites' caused weird errors.

Grabbing the ID from the shell worked for me though, detailed here:

https://gist.github.com/ielshareef/2986459 or here Site matching query does not exist

python ./manage.py shell
>>> from django.contrib.sites.models import Site
>>> Site().save()
>>> Site.objects.all()[0].id
u'4fe7aa759e654e2662000000'

Put it in settings.py and everything worked great!

I ran into this during my setup the other day.

Basically you need to logo into a mongo shell and lookup your siteid then add it your settings.py

log into a mongo shell

mongo

select your db

use *name*

then do a find() on django_site 

db.django_site.find()

Then open your settings.py and edit the site_ID ="" line (mine is below)

SITE_ID = u'4f1f82011d41c81e5c00001d'

That should get you up and running

Most likely you havent created a site yet, to do so you need to run the command

python manage.py syncdb

This creates the site, now you need to add its site_id in your settings file. Go get the site id, connect to mongodb engine that is running, and run the following commands

use mydatabase --/# or whatever name you have for your database.
db.django_site.find()

you will get something like

ObjectId("4f4e968adea3b3b30c00001d")

then in your settings file, put

site_id = u'4f4e968adea3b3b30c00001d'

and the admin interface should work. Does it?

I use manage.py syncdb and then manage.py tellsiteid but still display error.

I finally solve it by dropping the database and sync again.

Hope this can help someone:)

sudo python manage.py shell

from django.contrib.sites.models import Site
Site().save()
Site.objects.all()[0].id
u'53aa6456984edd0d5e547e03'

Put it in settings.py SITE_ID = u'53aa6456984edd0d5e547e03'

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