Don't call job.cancel if job has finished

rq/job.py

@@ -480,9 +480,10 @@ class Job(object):
             queue.remove(self, pipeline=pipeline)
         pipeline.execute()
 
-    def delete(self, pipeline=None):
+    def delete(self, pipeline=None, remove_from_queue=True):
         """Cancels the job and deletes the job hash from Redis."""
-        self.cancel()
+        if remove_from_queue:
+            self.cancel()
         connection = pipeline if pipeline is not None else self.connection
         connection.delete(self.key)
         connection.delete(self.dependents_key)
@@ -530,7 +531,7 @@ class Job(object):
 
         return '{0}({1})'.format(self.func_name, args)
 
-    def cleanup(self, ttl=None, pipeline=None):
+    def cleanup(self, ttl=None, pipeline=None, remove_from_queue=True):
         """Prepare job for eventual deletion (if needed). This method is usually
         called after successful execution. How long we persist the job and its
         result depends on the value of ttl:
@@ -540,7 +541,7 @@ class Job(object):
           forever)
         """
         if ttl == 0:
-            self.delete()
+            self.delete(remove_from_queue=remove_from_queue)
         elif not ttl:
             return
         elif ttl > 0:

rq/worker.py

@@ -605,7 +605,7 @@ class Worker(object):
                     finished_job_registry = FinishedJobRegistry(job.origin, self.connection)
                     finished_job_registry.add(job, result_ttl, pipeline)
 
-                job.cleanup(result_ttl, pipeline=pipeline)
+                job.cleanup(result_ttl, pipeline=pipeline, remove_from_queue=False)
                 started_job_registry.remove(job, pipeline=pipeline)
 
                 pipeline.execute()

tests/test_worker.py

@@ -273,20 +273,26 @@ class TestWorker(RQTestCase):
         q = Queue()
         job = q.enqueue(say_hello, args=('Frank',), result_ttl=10)
         w = Worker([q])
+        self.assertIn(job.get_id().encode('utf-8'), self.testconn.lrange(q.key, 0, -1))
         w.work(burst=True)
         self.assertNotEqual(self.testconn._ttl(job.key), 0)
+        self.assertNotIn(job.get_id().encode('utf-8'), self.testconn.lrange(q.key, 0, -1))
 
         # Job with -1 result_ttl don't expire
         job = q.enqueue(say_hello, args=('Frank',), result_ttl=-1)
         w = Worker([q])
+        self.assertIn(job.get_id().encode('utf-8'), self.testconn.lrange(q.key, 0, -1))
         w.work(burst=True)
         self.assertEqual(self.testconn._ttl(job.key), -1)
+        self.assertNotIn(job.get_id().encode('utf-8'), self.testconn.lrange(q.key, 0, -1))
 
         # Job with result_ttl = 0 gets deleted immediately
         job = q.enqueue(say_hello, args=('Frank',), result_ttl=0)
         w = Worker([q])
+        self.assertIn(job.get_id().encode('utf-8'), self.testconn.lrange(q.key, 0, -1))
         w.work(burst=True)
         self.assertEqual(self.testconn.get(job.key), None)
+        self.assertNotIn(job.get_id().encode('utf-8'), self.testconn.lrange(q.key, 0, -1))
 
     def test_worker_sets_job_status(self):
         """Ensure that worker correctly sets job status."""