TypeError 'x' object has no attribute '__getitem__'
Im getting the error
'CampSite' object has no attribute '__getitem__'
when I save a new CampCon entry in the admin interface. I have one application called campsites that handles the database of campsites, and I have another application called content that handles reviews. I am very new to Django and this is my first non-tutorial based project. I have been racking my brain and searching the web for an answer with no luck. Thank you in advance for your help. Here is my campsite model:
from django.contrib.gis.db import models
class CampSite(models.Model):
name = models.CharField(max_length=250)
showers = models.BooleanField()
flush = models.BooleanField()
rv = models.BooleanField()
lonlat = models.PointField(null=True, blank=True)
objects = models.GeoManager()
def __unicode__(self):
return self.name
Here is the content model:
from django.contrib.gis.db import models
from campsites.models import CampSite
from django.contrib.auth.models import User
from activities.models import Activities
class CampCon(models.Model):
campsite = models.ForeignKey(CampSite)
trip = models.ForeignKey('Trip')
Date = models.DateField()
user = models.ForeignKey(User)
overall_review = models.TextField()
facilities_review = models.IntegerField()
things_to_do = models.IntegerField()
privacy = models.IntegerField()
beauty = models.IntegerField()
overall_rating = models.IntegerField()
def __unicode__(self):
return self.campsite
class ImageDB(models.Model):
campsite = models.ForeignKey(CampSite)
user = models.ForeignKey(User)
description = models.CharField(max_length=200)
image = models.ImageField(upload_to='/home/bobby/Pictures/CampThat')
date_uploaded = models.DateField()
date_taken = models.DateField()
trip = models.ForeignKey('Trip')
activity = models.ForeignKey(Activities)
def __unicode__(self):
return self.campsite
class Trip(models.Model):
date = models.DateField()
description = models.CharField(max_length=100)
title = models.CharField(max_length=100)
blog = models.TextField()
def __unicode__(self):
return self.title
class ActivityCon(models.Model):
trip = models.ForeignKey(Trip)
rating = models.IntegerField()
overall_review = models.TextField()
activity = models.ForeignKey(Activities)
And here is the full Traceback:
Environment:
Request Method: POST
Request URL: http://localhost:8000/admin/content/campcon/add/
Django Version: 1.5
Python Version: 2.7.3
Installed Applications:
('django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'campsites',
'auth',
'trips',
'content',
'activities',
'django.contrib.admin')
Installed Middleware:
('django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware')
Traceback:
File "/usr/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
116. response = callback(request, *callback_args, **callback_kwargs)
File "/usr/lib/python2.7/site-packages/django/contrib/admin/options.py" in wrapper
367. return self.admin_site.admin_view(view)(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view
91. response = view_func(request, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
89. response = view_func(request, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/django/contrib/admin/sites.py" in inner
202. return view(request, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapper
25. return bound_func(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/django/utils/decorators.py" in _wrapped_view
91. response = view_func(request, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/django/utils/decorators.py" in bound_func
21. return func(self, *args2, **kwargs2)
File "/usr/lib/python2.7/site-packages/django/db/transaction.py" in inner
208. return func(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/django/contrib/admin/options.py" in add_view
958. self.log_addition(request, new_object)
File "/usr/lib/python2.7/site-packages/django/contrib/admin/options.py" in log_addition
525. action_flag = ADDITION
File "/usr/lib/python2.7/site-packages/django/contrib/admin/models.py" in log_action
18. e = self.model(None, None, user_id, content_type_id, smart_text(object_id), object_repr[:200], action_flag, change_message)
Exception Type: TypeError at /admin/content/campcon/add/
Exception Value: 'CampSite' object has no attribute '__getitem__'
Answer
Your issue is that your __unicode__ functions are returning model objects when they need to be returning unicode strings.
You can achieve this by adding the unicode() function to your __unicode__ methods:
class CampCon(models.Model):
campsite = models.ForeignKey(CampSite)
trip = models.ForeignKey('Trip')
Date = models.DateField()
user = models.ForeignKey(User)
overall_review = models.TextField()
facilities_review = models.IntegerField()
things_to_do = models.IntegerField()
privacy = models.IntegerField()
beauty = models.IntegerField()
overall_rating = models.IntegerField()
def __unicode__(self):
return unicode(self.campsite)
class ImageDB(models.Model):
campsite = models.ForeignKey(CampSite)
user = models.ForeignKey(User)
description = models.CharField(max_length=200)
image = models.ImageField(upload_to='/home/bobby/Pictures/CampThat')
date_uploaded = models.DateField()
date_taken = models.DateField()
trip = models.ForeignKey('Trip')
activity = models.ForeignKey(Activities)
def __unicode__(self):
return unicode(self.campsite)
This will call CampSite.__unicode__ which will return campsite.name.