add attempt_count to task

django_q/cluster.py

@@ -478,7 +478,12 @@ def save_task(task, broker: Broker):
                 existing_task.stopped = task["stopped"]
                 existing_task.result = task["result"]
                 existing_task.success = task["success"]
+                existing_task.attempt_count = existing_task.attempt_count + 1
                 existing_task.save()
+
+            if 0 < Conf.ATTEMPT_COUNT == existing_task.attempt_count:
+                broker.acknowledge(task['ack_id'])
+
         else:
             Task.objects.create(
                 id=task["id"],

django_q/conf.py

@@ -164,6 +164,9 @@ class Conf:
     # Optional error reporting setup
     ERROR_REPORTER = conf.get("error_reporter", {})
 
+    # Optional attempt count. set to 0 for infinite attempts
+    ATTEMPT_COUNT = conf.get('attempt_count', 0)
+
     # OSX doesn't implement qsize because of missing sem_getvalue()
     try:
         QSIZE = Queue().qsize() == 0

django_q/models.py

@@ -29,6 +29,7 @@ class Task(models.Model):
     started = models.DateTimeField(editable=False)
     stopped = models.DateTimeField(editable=False)
     success = models.BooleanField(default=True, editable=False)
+    attempt_count = models.IntegerField(default=0)
 
     @staticmethod
     def get_result(task_id):