Add utility class to throttle admin emails

qlinks/utils/admin_email.py

@@ -0,0 +1,21 @@
+import traceback
+
+from django.conf import settings
+from django.core.cache import cache
+from django.utils.log import AdminEmailHandler
+
+THROTTLE_VARIABLE = 'qlinks_error_email_throttle'
+throttle_limit, throttle_duration = getattr(settings, 'QLINKS_EMAIL_THROTTLE', (2, 60))
+
+
+class ThrottledEmailHandler(AdminEmailHandler):
+    def emit(self, record):
+        try:
+            cache.add(THROTTLE_VARIABLE, 0, throttle_duration)
+            count = cache.incr(THROTTLE_VARIABLE)
+        except Exception:
+            traceback.print_exc()
+        else:
+            if count > throttle_limit:
+                return
+        super().emit(record)