在视图中使用get_or_create

Question

我正在将用户从LDAP导入MySQL，我希望得到/创建配置文件：

profile_obj, created_profile = UserProfile.objects.get_or_create(user=user_obj)

Django给我一个例外，考虑到我正在使用的功能，这看起来很讽刺。

UserProfile matching query does not exist.

我使用不正确吗？

/Users/bdunlay/python/python-2.5/lib/python2.5/site-packages/django/core/handlers/base.py in get_response
                    response = callback(request, *callback_args, **callback_kwargs) ...
▶ Local vars
/django/internal/accounts/views.py in ad_search
        status = update_user(keyword, update_photos)
 ...
▶ Local vars
/django/internal/accounts/views.py in update_user
        profile_obj, created_profile = UserProfile.objects.get_or_create(user=user_obj)
 ...
▶ Local vars
/Users/bdunlay/python/python-2.5/lib/python2.5/site-packages/django/db/models/manager.py in get_or_create
        return self.get_query_set().get_or_create(**kwargs) ...
▶ Local vars
/Users/bdunlay/python/python-2.5/lib/python2.5/site-packages/django/db/models/query.py in get_or_create
                obj.save(force_insert=True, using=self.db) ...
▶ Local vars
/django/internal/../internal/accounts/models.py in save
        this = UserProfile.objects.get(id=self.id)
 ...
▶ Local vars
/Users/bdunlay/python/python-2.5/lib/python2.5/site-packages/django/db/models/manager.py in get
        return self.get_query_set().get(*args, **kwargs) ...
▶ Local vars
/Users/bdunlay/python/python-2.5/lib/python2.5/site-packages/django/db/models/query.py in get
                    % self.model._meta.object_name) ...
▶ Local vars

修改

根据下面的请求，保存功能。

def save(self, force_insert=False, force_update=False, using=settings.DATABASES['default']):

    super(UserProfile, self).save() # I just added this line and it seems to work now.

    this = UserProfile.objects.get(id=self.id)

    try:
        if this.photo != self.photo:
            this.photo.delete()
    except:
        pass


    # if this lives in a unresolved path, something is wrong. scrap it.   
    try:
        if self.photo:
            statinfo_photo = os.stat(self.photo.path)
    except:
        self.photo = None

    try:
        if self.thumbnail:
            statinfo_thumbnail = os.stat(self.thumbnail.path)
    except:
        self.thumbnail = None


      #get mtime stats from file
    thumb_update = False

    if self.thumbnail:
        statinfo1 = os.stat(self.photo.path)
        statinfo2 = os.stat(self.thumbnail.path)
        if statinfo1 > statinfo2:
            thumb_update = True

    if self.photo and not self.thumbnail or thumb_update:
      #  from PIL import Image

        try:
            if self.thumbnail:
                self.thumbnail.delete()
        except:
            pass



        THUMB_SIZE = (50, 50)

        #self.thumbnail = self.photo

        image = Image.open(self.photo.path)

        if image.mode not in ('L', 'RGB'):
            image = image.convert('RGB')

        image.thumbnail(THUMB_SIZE, Image.ANTIALIAS)
        (head, tail) = os.path.split(self.photo.path)
        (a, b) = os.path.split(self.photo.name)

        if not os.path.isdir(head + '/thumbs'):
            os.mkdir(head + '/thumbs')

        image.save(head + '/thumbs/' + tail)

        self.thumbnail = a + '/thumbs/' + b

    super(UserProfile, self).save()