[search][signals] Fix implementation and add link generation

beat/web/search/signals.py

@@ -39,9 +39,16 @@ from .models import Leaderboard
 @receiver(models.signals.pre_delete, sender=Leaderboard)
 def notify_users(sender, instance, **kwargs):
     """Notify users the leaderboard was deleted"""
-    emails = instance.notify.exclude(instance.author).values_list("email", flat=True)
+
+    emails = instance.notify.exclude(
+        username=instance.search.author.username
+    ).values_list("email", flat=True)
+
     if emails:
         current_site = Site.objects.get_current()
+        leaderboard_search_link = (
+            f"https://{current_site.domain}" + instance.search.get_absolute_url()
+        )
         template_path = "search/leaderboard_deleted.txt"
         subject = 'Leaderboard "%s" was deleted' % instance.search.fullname()
         mesg = EmailMessage(
@@ -51,7 +58,7 @@ def notify_users(sender, instance, **kwargs):
                 {
                     "leaderboard": instance,
                     "beat_version": version.__version__,
-                    "site": current_site,
+                    "leaderboard_search_link": leaderboard_search_link,
                 },
             ),
             settings.DEFAULT_FROM_EMAIL,