Hello, please help!
Some of my models throw this error, when I query them with object.all().
They coexist in apps that have other models that are just fine. I do not
understand at all what the problem might be and could not google it.
For example: this would be my models.py in the app "account":
from django.db import models
from django.contrib.auth.models import User
from apps.courseevent.models import CourseParticipation
from apps.transaction.models import Transaction
from model_utils.fields import SplitField
from model_utils.models import TimeStampedModel
from money import Money
class UserStatus(TimeStampedModel):
status_code = models.CharField(max_length=20)
title = models.CharField(max_length=100)
text = models.TextField()
def __unicode__(self):
return u"%s" % (self.title)
class UserAccount(TimeStampedModel):
user = models.ForeignKey(User, unique=True)
about = SplitField()
status = models.ForeignKey(UserStatus)
def __unicode__(self):
return u"%s %s" % (self.user.first_name, self.user.last_name)
def balance(self):
balance = Money(amount='0.00', currency='EUR')
transactions = Transaction.objects.filter(user=self.user_id)
for transaction in transactions:
try:
transaction_value = Money(amount=transaction.total ,
currency='EUR' )
balance = balance + transaction_value
except:
pass
return balance
def participation_level(self):
try:
CourseParticipation.objects.filter(participant=self.user_id,
role = CourseParticipation.ROLE_TEACHER)
return CourseParticipation.ROLE_TEACHER
except:
try:
CourseParticipation.objects.filter(participant=self.user_id,
role = CourseParticipation.ROLE_STUDENT)
return CourseParticipation.ROLE_STUDENT
except:
return None
Then I try to call them via the Python.shell:
>>>>from apps.account.models import UserStatus, UserAccount
>>>>x = UserStatus.objects.all()
>>>>y = UserAccount.objects.all()
>>>>print x
[<UserStatus: Angemeldet>, <UserStatus: Lehrer-Anwaerter>]
>>>>print y
Traceback (most recent call last):
File "<input>", line 1, in <module>
File
"/Users/sabinemaennel/VirtualEnvs/netteachers/lib/python2.7/site-packages/django/db/models/query.py",
line 119, in __repr__
return repr(data)
File
"/Users/sabinemaennel/VirtualEnvs/netteachers/lib/python2.7/site-packages/django/db/models/base.py",
line 459, in __repr__
u = six.text_type(self)
File
"/Users/sabinemaennel/PycharmProjects/netteachers/apps/account/models.py",
line 23, in __unicode__
return u"%s %s" % (self.user.first_name, self.user.last_name)
File
"/Users/sabinemaennel/VirtualEnvs/netteachers/lib/python2.7/site-packages/django/db/models/fields/related.py",
line 557, in __get__
val = self.field.get_local_related_value(instance)
File
"/Users/sabinemaennel/VirtualEnvs/netteachers/lib/python2.7/site-packages/django/db/models/fields/related.py",
line 1429, in get_local_related_value
return self.get_instance_value_for_fields(instance,
self.local_related_fields)
File
"/Users/sabinemaennel/VirtualEnvs/netteachers/lib/python2.7/site-packages/django/db/models/fields/related.py",
line 1422, in local_related_fields
return tuple(lhs_field for lhs_field, rhs_field in self.related_fields)
File
"/Users/sabinemaennel/VirtualEnvs/netteachers/lib/python2.7/site-packages/django/db/models/fields/related.py",
line 1413, in related_fields
self._related_fields = self.resolve_related_fields()
File
"/Users/sabinemaennel/VirtualEnvs/netteachers/lib/python2.7/site-packages/django/db/models/fields/related.py",
line 1406, in resolve_related_fields
else self.rel.to._meta.get_field_by_name(to_field_name)[0])
File
"/Users/sabinemaennel/VirtualEnvs/netteachers/lib/python2.7/site-packages/django/db/models/options.py",
line 416, in get_field_by_name
cache = self.init_name_map()
File
"/Users/sabinemaennel/VirtualEnvs/netteachers/lib/python2.7/site-packages/django/db/models/options.py",
line 445, in init_name_map
for f, model in self.get_all_related_m2m_objects_with_model():
File
"/Users/sabinemaennel/VirtualEnvs/netteachers/lib/python2.7/site-packages/django/db/models/options.py",
line 563, in get_all_related_m2m_objects_with_model
cache = self._fill_related_many_to_many_cache()
File
"/Users/sabinemaennel/VirtualEnvs/netteachers/lib/python2.7/site-packages/django/db/models/options.py",
line 577, in _fill_related_many_to_many_cache
for klass in self.apps.get_models():
File
"/Users/sabinemaennel/VirtualEnvs/netteachers/lib/python2.7/site-packages/django/utils/lru_cache.py",
line 101, in wrapper
result = user_function(*args, **kwds)
File
"/Users/sabinemaennel/VirtualEnvs/netteachers/lib/python2.7/site-packages/django/apps/registry.py",
line 168, in get_models
self.check_models_ready()
File
"/Users/sabinemaennel/VirtualEnvs/netteachers/lib/python2.7/site-packages/django/apps/registry.py",
line 131, in check_models_ready
raise AppRegistryNotReady("Models aren't loaded yet.")
AppRegistryNotReady: Models aren't loaded yet.
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