django-profiletools Tools for Profile models in Django
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Django profile models Django profile

django-profiletools Description

django-profiletools is a Django app that provides tools for profile models in Django.InstallationGet the code:pip install django-profiletoolsInstall the middleware and context_processor in your settings.py:TEMPLATE_CONTEXT_PROCESSORS = ( ... 'profiletools.context_processors.fetch_profile',)MIDDLEWARE_CLASSES = (...'profiletools.middleware.LazyProfileMiddleware',)Also in settings.py, set the AUTH_PROFILE_MODULE to your profile model:AUTH_PROFILE_MODULE = "profiles.Profile"Based on that, your profile model should resemble something like:# profiles.models.Profile.pyfrom django.contrib.auth.models import Userfrom django.db import modelsclass Profile(models.Model): user = models.OneToOneField(User) def __unicode__(self): return self.user.usernamenote: If you don't use profiles.models.Profile, say members.models.UserProfile go ahead and change the AUTH_PROFILE_MODULE to "members.UserProfile".UsageIn your templates:{{ request.my_profile }}In your functional views:profile = request.my_profileIn your class-based views:profile = self.request.my_profileCall my_profile as many times as you want, it only loads once. So if you call it 100 times in a view, the SQL SELECT is only done the first time. If no user is found then the my_profile call result is None, which makes it easier to handle templates which need to be able to handle unauthenticated users (like the about page).note: If you are using the members.UserProfile example, you'll need to call that by using request.my_userprofile.Problems with Python's "is" evaluation and "type" built-inIf you use the is evaluation before doing anything else with the my_profile object, it will behave in a slightly unexpected manner:The will always return false. For example:>>> print(request.my_profile is None)False>>> p = request.user.get_profile()>>> print(request.my_profile is p)FalseAlso, the type built-in will return a django.utils.functional.SimpleLazyObject object:>>> print(type)< class 'django.utils.functional.SimpleLazyObject' >Keep in mind what is placed in the my_profile value is not a ModelClass instance or None object, but rather a django.utils.functional.SimpleLazyObject.How to evaluate the my_profile objectUse == to evaluate the my_profile object. This forces the object to be evaluated and won't return frustrating false-positives.InspirationThe lazy loading of profiles was inspired by the rather incredible Noah Kantrowitz.Product's homepage

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