[bug 809575] Don't generate dropdowns in admin for UserProfiles.

Different models such as 'Groups' and 'UserProfile' use ForeignKeys to
UserProfile which due to the size causes issues. To avoid long
waiting, even timeouts, when using Admin Panel we don't generate
dropdowns for UserProfiles.

apps/groups/admin.py

@@ -6,5 +6,6 @@
 class GroupAdmin(admin.ModelAdmin):
     list_display = ['name', 'steward', 'wiki', 'website', 'irc_channel']
     search_fields = ['name']
+    raw_id_fields = ['steward']
 
 admin.site.register(Group, GroupAdmin)

apps/users/admin.py

@@ -1,15 +1,17 @@
 from django.contrib import admin
 from django.contrib.auth.admin import UserAdmin
-from django.contrib.auth.models import User
+from django.contrib.auth.models import Group, User
 
 from models import UserProfile, UsernameBlacklist
 
 admin.site.unregister(User)
+admin.site.unregister(Group)
 
 
 class UserProfileInline(admin.StackedInline):
     """UserProfile Inline model for UserAdmin."""
     model = UserProfile
+    raw_id_fields = ['vouched_by']
 
 
 class UserAdmin(UserAdmin):