Lot of small improvement in SAS

core/admin.py

@@ -1,4 +1,5 @@
 from django.contrib import admin
+from ajax_select import make_ajax_form
 from core.models import User, Page, RealGroup, SithFile
 from django.contrib.auth.models import Group as AuthGroup
 
@@ -7,5 +8,9 @@ admin.site.register(User)
 admin.site.unregister(AuthGroup)
 admin.site.register(RealGroup)
 admin.site.register(Page)
-admin.site.register(SithFile)
 
+@admin.register(SithFile)
+class SithFileAdmin(admin.ModelAdmin):
+    form = make_ajax_form(SithFile, {
+        'parent': 'files',  # ManyToManyField
+        })