First example uses a ``OneToOne`` profile, the second uses the traditional Django profile bits.

user1.py

from django.contrib.auth.models import User
# from tastypie.authentication import ApiKeyAuthentication
from tastypie.authorization import DjangoAuthorization
from tastypie import fields
from tastypie.resources import ModelResource, ALL, ALL_WITH_RELATIONS
from core.api.authentication import OpenReadApiKeyAuthentication


class UserResource(ModelResource):
    bio = fields.CharField(attribute='profile__bio', null=True)
    website = fields.CharField(attribute='profile__website', null=True)
    twitter_username = fields.CharField(attribute='profile__twitter_username', null=True)
    characters_written = fields.IntegerField(attribute='profile__characters_written', readonly=True)
    
    class Meta:
        queryset = User.objects.filter(is_active=True)
        resource_name = 'users'
        include_absolute_url = True
        # authentication = ApiKeyAuthentication()
        authentication = OpenReadApiKeyAuthentication()
        authorization = DjangoAuthorization()
        excludes = ['email', 'password', 'is_staff', 'is_superuser', 'is_active']
        filtering = {
            'username': ALL,
        }

user2.py

from django.contrib.auth.models import User
# from tastypie.authentication import ApiKeyAuthentication
from tastypie.authorization import DjangoAuthorization
from tastypie import fields
from tastypie.resources import ModelResource, ALL, ALL_WITH_RELATIONS
from core.api.authentication import OpenReadApiKeyAuthentication


class UserResource(ModelResource):
    bio = fields.CharField(attribute='get_profile__bio', null=True)
    website = fields.CharField(attribute='get_profile__website', null=True)
    twitter_username = fields.CharField(attribute='get_profile__twitter_username', null=True)
    characters_written = fields.IntegerField(attribute='get_profile__characters_written', readonly=True)
    
    class Meta:
        queryset = User.objects.filter(is_active=True)
        resource_name = 'users'
        include_absolute_url = True
        # authentication = ApiKeyAuthentication()
        authentication = OpenReadApiKeyAuthentication()
        authorization = DjangoAuthorization()
        excludes = ['email', 'password', 'is_staff', 'is_superuser', 'is_active']
        filtering = {
            'username': ALL,
        }
    
    def hydrate(self, bundle):
        updated_bundle = super(UserResource, self).hydrate(bundle)
        profile = bundle.obj.get_profile()
        profile.bio = bundle.data.get('bio', '')
        profile.website = bundle.data.get('website', '')
        profile.twitter_username = bundle.data.get('twitter_username', '')
        profile.save()
        return updated_bundle