[svn] Add user registration and user profiles.

Used modified versions of django-registration and django-profiles , both on bitbucket.

The Person model is now set up as the profile for auth.User s.

I set up a requestcontext so that settings is automatically passed to every template, no need to repeat ourselves in views. However, this needs to be refined: I will soon change it to only pass a subset of settings. E.G. we do not need to be passing the DB login and password!
Copied from http://cucc@cucc.survex.com/svn/trunk/expoweb/troggle/, rev. 8231 by aaron @ 1/29/2009 11:02 PM

registration/views.py

@@ -0,0 +1,153 @@
+"""
+Views which allow users to create and activate accounts.
+
+"""
+
+
+from django.conf import settings
+from django.core.urlresolvers import reverse
+from django.http import HttpResponseRedirect
+from django.shortcuts import render_to_response
+from django.template import RequestContext
+
+from registration.forms import RegistrationForm
+from registration.models import RegistrationProfile
+
+
+def activate(request, activation_key,
+             template_name='registration/activate.html',
+             extra_context=None):
+    """
+    Activate a ``User``'s account from an activation key, if their key
+    is valid and hasn't expired.
+    
+    By default, use the template ``registration/activate.html``; to
+    change this, pass the name of a template as the keyword argument
+    ``template_name``.
+    
+    **Required arguments**
+    
+    ``activation_key``
+       The activation key to validate and use for activating the
+       ``User``.
+    
+    **Optional arguments**
+       
+    ``extra_context``
+        A dictionary of variables to add to the template context. Any
+        callable object in this dictionary will be called to produce
+        the end result which appears in the context.
+    
+    ``template_name``
+        A custom template to use.
+    
+    **Context:**
+    
+    ``account``
+        The ``User`` object corresponding to the account, if the
+        activation was successful. ``False`` if the activation was not
+        successful.
+    
+    ``expiration_days``
+        The number of days for which activation keys stay valid after
+        registration.
+    
+    Any extra variables supplied in the ``extra_context`` argument
+    (see above).
+    
+    **Template:**
+    
+    registration/activate.html or ``template_name`` keyword argument.
+    
+    """
+    activation_key = activation_key.lower() # Normalize before trying anything with it.
+    account = RegistrationProfile.objects.activate_user(activation_key)
+    if extra_context is None:
+        extra_context = {}
+    context = RequestContext(request)
+    for key, value in extra_context.items():
+        context[key] = callable(value) and value() or value
+    return render_to_response(template_name,
+                              { 'account': account,
+                                'expiration_days': settings.ACCOUNT_ACTIVATION_DAYS, 'settings':settings},
+                              context_instance=context)
+
+
+def register(request, success_url=None,
+             form_class=RegistrationForm,
+             template_name='registration/registration_form.html',
+             extra_context=None):
+    """
+    Allow a new user to register an account.
+    
+    Following successful registration, issue a redirect; by default,
+    this will be whatever URL corresponds to the named URL pattern
+    ``registration_complete``, which will be
+    ``/accounts/register/complete/`` if using the included URLConf. To
+    change this, point that named pattern at another URL, or pass your
+    preferred URL as the keyword argument ``success_url``.
+    
+    By default, ``registration.forms.RegistrationForm`` will be used
+    as the registration form; to change this, pass a different form
+    class as the ``form_class`` keyword argument. The form class you
+    specify must have a method ``save`` which will create and return
+    the new ``User``.
+    
+    By default, use the template
+    ``registration/registration_form.html``; to change this, pass the
+    name of a template as the keyword argument ``template_name``.
+    
+    **Required arguments**
+    
+    None.
+    
+    **Optional arguments**
+    
+    ``form_class``
+        The form class to use for registration.
+    
+    ``extra_context``
+        A dictionary of variables to add to the template context. Any
+        callable object in this dictionary will be called to produce
+        the end result which appears in the context.
+    
+    ``success_url``
+        The URL to redirect to on successful registration.
+    
+    ``template_name``
+        A custom template to use.
+    
+    **Context:**
+    
+    ``form``
+        The registration form.
+    
+    Any extra variables supplied in the ``extra_context`` argument
+    (see above).
+    
+    **Template:**
+    
+    registration/registration_form.html or ``template_name`` keyword
+    argument.
+    
+    """
+    if request.method == 'POST':
+        form = form_class(data=request.POST, files=request.FILES)
+        if form.is_valid():
+            new_user = form.save()
+            # success_url needs to be dynamically generated here; setting a
+            # a default value using reverse() will cause circular-import
+            # problems with the default URLConf for this application, which
+            # imports this file.
+            return HttpResponseRedirect(success_url or reverse('registration_complete'))
+    else:
+        form = form_class()
+    
+    if extra_context is None:
+        extra_context = {}
+    context = RequestContext(request)
+    for key, value in extra_context.items():
+        context[key] = callable(value) and value() or value
+    return render_to_response(template_name,
+                              { 'form': form,'settings':settings },
+                              context_instance=context)