create emailer version 1

env/Lib/site-packages/django/contrib/postgres/functions.py

@@ -0,0 +1,11 @@
+from django.db.models import DateTimeField, Func, UUIDField
+
+
+class RandomUUID(Func):
+    template = "GEN_RANDOM_UUID()"
+    output_field = UUIDField()
+
+
+class TransactionNow(Func):
+    template = "CURRENT_TIMESTAMP"
+    output_field = DateTimeField()