Add missing file

Author: rennerocha

thebook/webhooks/constants.py

@@ -0,0 +1,18 @@
+from django.utils.functional import classproperty
+from django.utils.translation import gettext as _
+
+
+class ProcessingStatus:
+    RECEIVED = 1
+    PROCESSED = 2
+    UNPARSABLE = 3
+    DUPLICATED = 4
+
+    @classproperty
+    def choices(cls):
+        return (
+            (cls.RECEIVED, _("Received")),
+            (cls.PROCESSED, _("Processed")),
+            (cls.UNPARSABLE, _("Unparsable")),
+            (cls.DUPLICATED, _("Duplicated")),
+        )