# HG changeset patch
# User Marcin Kuzminski <marcin@python-works.com>
# Date 1350502492 -7200
# Node ID 07d620f6db2e05d3e3a9fa841d48135faa850354
# Parent  19ea3e16f65b71b84774fc1839af8b6d5a308c1b
pull requests throw an error if parent of fork didn't have any changesets yet. Now it's filter out from list of available sources

diff -r 19ea3e16f65b -r 07d620f6db2e rhodecode/controllers/pullrequests.py
--- a/rhodecode/controllers/pullrequests.py	Wed Oct 17 21:27:46 2012 +0200
+++ b/rhodecode/controllers/pullrequests.py	Wed Oct 17 21:34:52 2012 +0200
@@ -149,8 +149,8 @@
                                  self._get_repo_refs(fork.scm_instance),
                                  class_='refs')
             }
-        #add parents of this fork also
-        if org_repo.parent:
+        #add parents of this fork also, but only if it's not empty
+        if org_repo.parent and org_repo.parent.scm_instance.revisions:
             c.default_pull_request = org_repo.parent.repo_name
             c.default_pull_request_rev = self._get_default_rev(org_repo.parent)
             c.default_revs = self._get_repo_refs(org_repo.parent.scm_instance)