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Thread: Re: Cannot resolve keyword into field




Re: Cannot resolve keyword into field
country flaguser name
United States
2007-04-23 10:59:22
FWIW, I just submitted a patch which makes that error message more helpful by showing the list of valid fields: http://code.djangoproject.com/ticket/4130

--Ned.

gmail.com">carole.zielergmail.com wrote:
y80g2000hsf.googlegroups.com" type="cite">
Can you post the exact code throwing the error, and copy paste your
exact model code related to the error?

It sounds like you have something like the following:

.filter(book=

where it should be something like

 .filter(someobject__book

But it's hard to tell w/out seeing  the code.

On Apr 22, 12:59 am, Ramashish Baranwal gmail.com"><ramashish.li...gmail.com&gt;
wrote:
  
On Apr 22, 3:13 am, Ramashish Baranwal gmail.com"><ramashish.li...gmail.com&gt;
wrote:



    
Hi,
      
I using a script to fetch some database records. However, when it
encounters a ManyToManyField it gives the following error-
      
TypeError: Cannot resolve keyword 'book' into field
      
My models.py looks like this-
      
from django.db import models
      
# Create your models here.
class Author(models.Model):
    name = models.CharField(maxlength=100)

      
class Book(models.Model):
    title = models.CharField(maxlength=100)

    authors = models.ManyToManyField(Author)
      
and my test script to retrieve records contains (the app name is
test)-
      
import os
if not os.environ.has_key('DJANGO_SETTINGS_MODULE'):
    os.environ['DJANGO_SETTINGS_MODULE'] = 'settings'
      
import settings
from test.models import *
      
b = Book.objects.get(id=1)
for a in b.authors.all(): print a
      
I am using django with sqlite2 on Fedora Core 6 with python-2.4.3 and
have tried version 0.95, 0.96 and svn trunk. All throw the same error-
  TypeError: Cannot resolve keyword 'book' into field
When I try the same through "python manage.py shell" interactive
shell, i.e. by entering the two lines above, it works fine. Probably,

I'm missing some setting option. But the same script works for models
that don't contain an M2M field, so that seems unlikely.

      
Any clues?
      
Sorry, a typo in my earlier post. Its sqlite3 not sqlite2.

Ram
    








  

-- 
Ned Batchelder, http://nedbatchelder.com

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