diff -r ebaad720f88b -r 526ebd3988b0 web/lib/django_extensions/management/commands/set_fake_emails.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django_extensions/management/commands/set_fake_emails.py	Wed Jan 20 12:37:40 2010 +0100
@@ -0,0 +1,75 @@
+"""
+set_fake_emails.py 
+
+    Give all users a new email account. Useful for testing in a 
+    development environment. As such, this command is only available when
+    setting.DEBUG is True.
+
+"""
+from optparse import make_option
+
+from django.conf import settings
+from django.core.management.base import NoArgsCommand, CommandError
+
+DEFAULT_FAKE_EMAIL = '%(username)s@example.com'
+
+class Command(NoArgsCommand):
+    option_list = NoArgsCommand.option_list + (
+        make_option('--email', dest='default_email', default=DEFAULT_FAKE_EMAIL,
+            help='Use this as the new email format.'),
+        make_option('-a', '--no-admin', action="store_true", dest='no_admin', default=False,
+            help='Do not change administrator accounts'),
+        make_option('-s', '--no-staff', action="store_true", dest='no_staff', default=False,
+            help='Do not change staff accounts'),
+        make_option('--include', dest='include_regexp', default=None,
+            help='Include usernames matching this regexp.'),
+        make_option('--exclude', dest='exclude_regexp', default=None,
+            help='Exclude usernames matching this regexp.'),
+        make_option('--include-groups', dest='include_groups', default=None,
+            help='Include users matching this group. (use comma seperation for multiple groups)'),
+        make_option('--exclude-groups', dest='exclude_groups', default=None,
+            help='Exclude users matching this group. (use comma seperation for multiple groups)'),
+    )
+    help = '''DEBUG only: give all users a new email based on their account data ("%s" by default). Possible parameters are: username, first_name, last_name''' % (DEFAULT_FAKE_EMAIL, )
+    requires_model_validation = False
+
+    def handle_noargs(self, **options):
+        if not settings.DEBUG:
+            raise CommandError('Only available in debug mode')
+            
+        from django.contrib.auth.models import User, Group
+        email = options.get('default_email', DEFAULT_FAKE_EMAIL)
+        include_regexp = options.get('include_regexp', None)
+        exclude_regexp = options.get('exclude_regexp', None)
+        include_groups = options.get('include_groups', None)
+        exclude_groups = options.get('exclude_groups', None)
+        no_admin = options.get('no_admin', False)
+        no_staff = options.get('no_staff', False)
+        
+        users = User.objects.all()
+        if no_admin:
+            users = users.exclude(is_superuser=True)
+        if no_staff:
+            users = users.exclude(is_staff=True)
+        if exclude_groups:
+            groups = Group.objects.filter(name__in=exclude_groups.split(","))
+            if groups:
+                users = users.exclude(groups__in=groups)
+            else:
+                raise CommandError("No group matches filter: %s" % exclude_groups)
+        if include_groups:
+            groups = Group.objects.filter(name__in=include_groups.split(","))
+            if groups:
+                users = users.filter(groups__in=groups)
+            else:
+                raise CommandError("No groups matches filter: %s" % include_groups)
+        if exclude_regexp:
+            users = users.exclude(username__regex=exclude_regexp)
+        if include_regexp:
+            users = users.filter(username__regex=include_regexp)
+        for user in users:
+            user.email = email % {'username': user.username,
+                                  'first_name': user.first_name,
+                                  'last_name': user.last_name}
+            user.save()
+        print 'Changed %d emails' % users.count()