F Object + Multilingual = instancemethod expected at least 2 arguments, got 0

Question

F Object + Multilingual = instancemethod expected at least 2 arguments, got 0

geomin opened this issue 14 years ago · comments

Georg Kasmin commented 14 years ago

Hi,

i ran into a problem with Django F objects and multilingual-ng, we have the follow models:

Django: 1.3 pre-alpha and 1.2.1 release
multilingual-ng: 0.1.45

models.py:

==================================================================

from django.contrib.auth.models import User
from django.db import models
import multilingual
from django.db.models.aggregates import Sum
from django.db.models import F, Q

class AccountType(models.Model):
class AccountTypeTranslation(multilingual.translation.TranslationModel):
name = models.CharField(max_length=32)

class UserProfileManager(models.Manager):
def explode(self):
profiles = self.get_query_set()#UserProfile.objects.all()
profiles = profiles.annotate(commission_sum=Sum('commission'))

    profiles = profiles.filter(commission_sum__gte=F('payout_limit'))    
    #profiles = profiles.filter(commission__gte=F('payout_limit'))

    print profiles.query
    print profiles

    return profiles

class UserProfile(models.Model):
payout_limit = models.PositiveIntegerField(default=20)
commission = models.PositiveIntegerField(default=20)
account_type = models.ForeignKey(AccountType, default=1)
user = models.ForeignKey(User)

objects = UserProfileManager()

==================================================================

call with: UserProfile.objects.explode()

IS: instancemethod expected at least 2 arguments, got 0
SHOULD: return a valid queryset
Problem: something goes wrong in deepcopy
NOTICE: it will work as soon you delete the field "account_type"

Backtrace:

Traceback:
File "/home/georg/repository/django/core/handlers/base.py" in get_response

                response = callback(request, _callback_args, *_callback_kwargs)

File "/home/georg/Projects/myreprod/views.py" in index

```
UserProfile.objects.explode()
```
File "/home/georg/Projects/myreprod/models.py" in explode
```
    print profiles
```
File "/home/georg/repository/django/db/models/query.py" in repr
```
    data = list(self[:REPR_OUTPUT_SIZE + 1])
```
File "/home/georg/repository/django/db/models/query.py" in getitem
```
        qs = self._clone()
```
File "/home/georg/repository/django/db/models/query.py" in _clone
```
    query = self.query.clone()
```
File "/home/georg/repository/django/db/models/sql/query.py" in clone

    obj.having = deepcopy(self.having, memo=memo)