dnscms: better organizer chooser, fixes slugs for organizers, better slugs

dnscms/events/models.py

@@ -166,7 +166,7 @@ class EventOrganizerLink(Orderable):
 
 @register_snippet
 @register_query_field("eventOrganizer", "eventOrganizers")
-class EventOrganizer(ClusterableModel):
+class EventOrganizer(index.Indexed, ClusterableModel):
     objects = WPAwareManager()
 
     name = models.CharField(
@@ -222,6 +222,11 @@ class EventOrganizer(ClusterableModel):
         GraphQLString("external_url"),
     ]
 
+    search_fields = [
+        index.SearchField("name"),
+        index.AutocompleteField("name"),
+    ]
+
     class Meta:
         verbose_name = _("event organizer")
         verbose_name_plural = _("event organizers")