Registry objects can be instantiated by passing a queue object.

rq/registry.py

@@ -15,12 +15,19 @@ class BaseRegistry(object):
     job_class = Job
     key_template = 'rq:registry:{0}'
 
-    def __init__(self, name='default', connection=None, job_class=None):
+    def __init__(self, name='default', connection=None, job_class=None,
+                 queue=None):
+        if queue:
+            self.name = queue.name
+            self.connection = resolve_connection(queue.connection)
+        else:
             self.name = name
-        self.key = self.key_template.format(name)
             self.connection = resolve_connection(connection)
+
+        self.key = self.key_template.format(self.name)
         self.job_class = backend_class(self, 'job_class', override=job_class)
 
+
     def __len__(self):
         """Returns the number of jobs in this registry"""
         return self.count

tests/test_registry.py

@@ -23,6 +23,17 @@ class TestRegistry(RQTestCase):
         super(TestRegistry, self).setUp()
         self.registry = StartedJobRegistry(connection=self.testconn)
 
+    def test_init(self):
+        """Registry can be instantiated with queue or name/Redis connection"""
+        queue = Queue('foo', connection=self.testconn)
+        registry = StartedJobRegistry(queue=queue)
+        self.assertEqual(registry.name, queue.name)
+        self.assertEqual(registry.connection, queue.connection)
+
+        registry = StartedJobRegistry('bar', self.testconn)
+        self.assertEqual(registry.name, 'bar')
+        self.assertEqual(registry.connection, self.testconn)
+
     def test_key(self):
         self.assertEqual(self.registry.key, 'rq:wip:default')