Changes between Version 1 and Version 2 of Ticket #9992


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Timestamp:
02/26/2009 08:55:51 PM (6 years ago)
Author:
jacob
Comment:

[trimmed excessive explanation; this is actually a very simple doc fix]

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  • Ticket #9992

    • Property Milestone changed from to 1.1
    • Property Triage Stage changed from Unreviewed to Accepted
  • Ticket #9992 – Description

    v1 v2  
    1 Full email discussion from: http://groups.google.com/group/django-users/browse_thread/thread/493e0c048dd07e46/bf8a13a685d81c75?lnk=gst&q=get_profile#bf8a13a685d81c75
     1The docs lead one to expect that given an app name `Profile`, a `AUTH_PROFILE_MODULE` setting of `profile.modelname` would work, but `Profile.modelname` is actually correct.
    22
    3 The link to the faulty documentation is given at the very end of this entry.
     3http://docs.djangoproject.com/en/dev/topics/auth/#auth-profiles claims that `AUTH_PROFILE_MODULE` is "The (normalized to lower-case) name of the application in which the user profile model is defined (in other words, an all-lowercase version of the name which was passed to `manage.py startapp` to create the application)."
    44
    5 Dear all,
     5This is wrong; the `app_label` part is the a python module, and hence case-sensitive.
    66
    7 I have difficulties with the `get_profile` to link my `Profile` class with
    8 the inbuilt User object.
    9 
    10 The error message (which can be obtained through the 'chatroom' view
    11 shown below, or via the shell) is:
    12 
    13 {{{
    14 ---------------------------------------------------------------------------
    15 AttributeError                            Traceback (most recent call last)
    16 
    17 /Users/fangohr/local/hg/scico_web/debug/mysite/<ipython console> in <module>()
    18 
    19 /Library/Frameworks/Python.framework/Versions/4.0.30002/lib/python2.5/site-packages/django/contrib/auth/models.pyc in get_profile(self)
    20     291                 app_label, model_name = settings.AUTH_PROFILE_MODULE.split('.')
    21     292                 model = models.get_model(app_label, model_name)
    22 --> 293                 self._profile_cache = model._default_manager.get(user__id__exact=self.id)
    23     294             except (ImportError, ImproperlyConfigured):
    24     295                 raise SiteProfileNotAvailable
    25 
    26 AttributeError: 'NoneType' object has no attribute '_default_manager'
    27 }}}
    28 
    29 This indicates that `models.get_model()` does return `None`, but I don't know why.
    30 
    31 I have in `settings.py`:
    32 {{{
    33 AUTH_PROFILE_MODULE = 'people.profile'
    34 }}}
    35 which I believe is the right entry.
    36 
    37 
    38 For clarity, I have created a small django-site that can be downloaded in a tar file as:
    39 
    40 http://www.soton.ac.uk/~fangohr/geheim/django/get_profile/debug.tar.gz
    41 
    42 or can be viewed online in the untarred version at
    43 
    44 http://www.soton.ac.uk/~fangohr/geheim/django/get_profile/debug
    45 
    46 I summarise the most important elements below (so that this email can stand on its own for the archives):
    47 
    48 
    49 `mysite/People/models.py` contains:
    50 {{{
    51 #-----------
    52 from django.contrib.auth.models import User
    53 from django.db import models
    54 
    55 class Profile(models.Model):
    56     user = models.ForeignKey(User,unique=True)
    57     homepageURL=models.URLField('homepage',blank=True)
    58 
    59     class Admin:
    60         pass
    61 #-----------
    62 }}}
    63 
    64 The corresponding view (which fails) is in `mysite/People/views.py`:
    65 {{{
    66 #-----------
    67 from django.contrib.auth.models import User
    68 from django.contrib.auth.decorators import login_required
    69 
    70 
    71 def chatrooms(request):
    72         u = User.objects.get(pk=1) # Get the first user
    73         user_address = u.get_profile().homepageURL
    74         #at this point we get an error, equivalent to shell example
    75 #-----------
    76 }}}
    77 The `mysite/settings.py` reads
    78 {{{
    79 #-----------
    80 # Django settings for mysite project.
    81 
    82 DEBUG = True
    83 TEMPLATE_DEBUG = DEBUG
    84 
    85 ADMINS = (
    86     # ('Your Name', 'your_email@domain.com'),
    87 )
    88 
    89 MANAGERS = ADMINS
    90 
    91 DATABASE_ENGINE = 'sqlite3'           # 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'.
    92 DATABASE_NAME = 'test.dat'             # Or path to database file if using sqlite3.
    93 DATABASE_USER = ''             # Not used with sqlite3.
    94 DATABASE_PASSWORD = ''         # Not used with sqlite3.
    95 DATABASE_HOST = ''             # Set to empty string for localhost. Not used with sqlite3.
    96 DATABASE_PORT = ''             # Set to empty string for default. Not used with sqlite3.
    97 
    98 # Local time zone for this installation. Choices can be found here:
    99 # http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
    100 # although not all choices may be available on all operating systems.
    101 # If running in a Windows environment this must be set to the same as your
    102 # system time zone.
    103 TIME_ZONE = 'America/Chicago'
    104 
    105 # Language code for this installation. All choices can be found here:
    106 # http://www.i18nguy.com/unicode/language-identifiers.html
    107 LANGUAGE_CODE = 'en-us'
    108 
    109 SITE_ID = 1
    110 
    111 # If you set this to False, Django will make some optimizations so as not
    112 # to load the internationalization machinery.
    113 USE_I18N = True
    114 
    115 # Absolute path to the directory that holds media.
    116 # Example: "/home/media/media.lawrence.com/"
    117 MEDIA_ROOT = ''
    118 
    119 # URL that handles the media served from MEDIA_ROOT. Make sure to use a
    120 # trailing slash if there is a path component (optional in other cases).
    121 # Examples: "http://media.lawrence.com", "http://example.com/media/"
    122 MEDIA_URL = ''
    123 
    124 # URL prefix for admin media -- CSS, JavaScript and images. Make sure to use a
    125 # trailing slash.
    126 # Examples: "http://foo.com/media/", "/media/".
    127 ADMIN_MEDIA_PREFIX = '/media/'
    128 
    129 AUTH_PROFILE_MODULE = 'people.profile'
    130 
    131 # Make this unique, and don't share it with anybody.
    132 SECRET_KEY = 'afxb6gs$x!8o3z5+bc@4#g0^z_mpuscs1=#c700@cdpvn^&51@'
    133 
    134 # List of callables that know how to import templates from various sources.
    135 TEMPLATE_LOADERS = (
    136     'django.template.loaders.filesystem.load_template_source',
    137     'django.template.loaders.app_directories.load_template_source',
    138 #     'django.template.loaders.eggs.load_template_source',
    139 )
    140 
    141 MIDDLEWARE_CLASSES = (
    142     'django.middleware.common.CommonMiddleware',
    143     'django.contrib.sessions.middleware.SessionMiddleware',
    144     'django.contrib.auth.middleware.AuthenticationMiddleware',
    145 )
    146 
    147 ROOT_URLCONF = 'mysite.urls'
    148 #ROOT_URLCONF = 'urls'
    149 
    150 TEMPLATE_DIRS = (
    151     # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates".
    152     # Always use forward slashes, even on Windows.
    153     # Don't forget to use absolute paths, not relative paths.
    154 )
    155 
    156 INSTALLED_APPS = (
    157     'django.contrib.auth',
    158     'django.contrib.contenttypes',
    159     'django.contrib.sessions',
    160     'django.contrib.sites',
    161     'mysite.People',
    162     'django.contrib.admin'
    163 )
    164 #------------
    165 }}}
    166 and the `url.py` is
    167 {{{
    168 #------------
    169 from django.conf.urls.defaults import *
    170 import mysite
    171 
    172 from django.contrib import admin
    173 admin.autodiscover()
    174 
    175 urlpatterns = patterns('',
    176     (r'^mysite/$', 'mysite.People.views.chatrooms'),
    177     (r'^admin/(.*)', admin.site.root),
    178 )
    179 #------------
    180 }}}
    181 
    182 The error can be triggered by viewing
    183 
    184 http://localhost:8000/mysite/
    185 
    186 or by running the shell example shown here:           
    187    
    188 {{{
    189 phi:mysite fangohr$ python manage.py shell
    190 Enthought Python Distribution -- http://code.enthought.com
    191 
    192 Python 2.5.2 |EPD with Py2.5 4.0.30002 | (r252:60911, Oct 15 2008, 16:58:38)
    193 Type "copyright", "credits" or "license" for more information.
    194 
    195 IPython 0.9.1 -- An enhanced Interactive Python.
    196 ?         -> Introduction and overview of IPython's features.
    197 %quickref -> Quick reference.
    198 help      -> Python's own help system.
    199 object?   -> Details about 'object'. ?object also works, ?? prints more.
    200 
    201 In [1]: from django.contrib.auth.models import User
    202 
    203 In [2]: myuser=User.objects.all()[0]
    204 
    205 In [3]: myuser.get_profile()
    206 ---------------------------------------------------------------------------
    207 AttributeError                            Traceback (most recent call last)
    208 
    209 /Users/fangohr/local/hg/scico_web/debug/mysite/<ipython console> in <module>()
    210 
    211 /Library/Frameworks/Python.framework/Versions/4.0.30002/lib/python2.5/site-packages/django/contrib/auth/models.pyc in get_profile(self)
    212     291                 app_label, model_name = settings.AUTH_PROFILE_MODULE.split('.')
    213     292                 model = models.get_model(app_label, model_name)
    214 --> 293                 self._profile_cache = model._default_manager.get(user__id__exact=self.id)
    215     294             except (ImportError, ImproperlyConfigured):
    216     295                 raise SiteProfileNotAvailable
    217 
    218 AttributeError: 'NoneType' object has no attribute '_default_manager'
    219 
    220 In [4]:
    221 }}}
    222 
    223 
    224 I have checked other entries on the mailing list, but couldn't find the solution to this problem.
    225 
    226 Any help is very welcome.
    227 
    228 Many thanks,
    229 
    230 Hans
    231 
    232 
    233 
    234 PS Version:
    235 {{{
    236 phi:mysite fangohr$ python manage.py --version
    237 1.0.2 final
    238 }}}
    239 PPS In the database for this example, the admin user is 'admin' and
    240 the password is 'admin' -- in case anybody wants to play with that.
    241 
    242 
    243 Solution (Karen Tracey):
    244 
    245 > (Thanks for the very detailed question.) I think you have found a
    246 > documentation bug.  I do not believe the `'people'` part of that
    247 > should be normalized to lower case.  It is not normalized to lower
    248 > case in `INSTALLED_APPS`, and I don't think it should be normalized
    249 > to lower case here.  Since you have a capital P in People for your
    250 > directory name, try `'People.profile'`.
    251 >
    252 >
    253 > Karen
    254 
    255 Note: Changing `people.profile` to `People.profile` solves the problem.
    256 
    257 
    258 
    259 
    260 
    261 Related documentation: http://docs.djangoproject.com/en/dev/topics/auth/#auth-profiles
    262 
    263 Here it says under 1.: "The (normalized to lower-case) name of the application in which the user profile model is defined (in other words, an all-lowercase version of the name which was passed to `manage.py startapp` to create the application)."
    264 
    265 This is wrong.
    266 
    267 
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