Outbox

Main/models/__init__.py

@@ -11,3 +11,4 @@ from Main.models.solution_file import SolutionFile
 from Main.models.friendship import Friendship
 from Main.models.language_apply import LanguageApply
 from Main.models.dump import Dump
+from Main.models.outbox_message import OutboxMessage

Main/models/outbox_message.py

@@ -0,0 +1,17 @@
+from django.db import models
+from django.utils import timezone
+
+
+class OutboxMessage(models.Model):
+    queue = models.TextField()
+    body = models.JSONField()
+    time_created = models.DateTimeField(default=timezone.now)
+    time_sent = models.DateTimeField(null=True, default=None)
+    time_received = models.DateTimeField(null=True, default=None)
+    time_processed = models.DateTimeField(null=True, default=None)
+
+    class Meta:
+        indexes = [
+            models.Index(fields=['time_sent']),
+            models.Index(fields=['time_sent', 'time_processed'])
+        ]