From: martinko <gamato@users.sf.net>
Date: Thu, 23 Jan 2014 12:00:53 +0000 (+0200)
Subject: pgq.cascade.admin: do not allow subscribing to itself (same node)
X-Git-Tag: skytools_3_2^2~14
X-Git-Url: http://git.postgresql.org/gitweb/?a=commitdiff_plain;h=472efc6e23ea9fb825a864d54272cc004464f288;p=skytools.git

pgq.cascade.admin: do not allow subscribing to itself (same node)
---

diff --git a/python/pgq/cascade/admin.py b/python/pgq/cascade/admin.py
index ef223657..39ffd96c 100644
--- a/python/pgq/cascade/admin.py
+++ b/python/pgq/cascade/admin.py
@@ -546,6 +546,9 @@ class CascadeAdmin(skytools.AdminScript):
         if not node or not consumer:
             node, consumer = self.find_consumer(node = node, consumer = consumer)
 
+        if node == new_provider:
+            raise UsageError ("cannot subscribe to itself")
+
         cmap = self.get_node_consumer_map(node)
         cinfo = cmap[consumer]
         old_provider = cinfo['provider_node']