From 0859641cb8ab28e838cb43397030c5b91b70830e Mon Sep 17 00:00:00 2001
From: Ralph Bean <rbean@redhat.com>
Date: Wed, 13 Jul 2016 16:55:41 -0400
Subject: [PATCH] A useful utility classmethod.

---
 rida/database.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/rida/database.py b/rida/database.py
index cdceaa34..62706968 100644
--- a/rida/database.py
+++ b/rida/database.py
@@ -121,6 +121,12 @@ class ModuleBuild(Base):
             return BUILD_STATES[field]
         raise ValueError("%s: %s, not in %r" % (key, field, BUILD_STATES))
 
+    @classmethod
+    def from_fedmsg(cls, session, msg):
+        if '.module.' not in msg['topic']:
+            raise ValueError("%r is not a module message." % msg['topic'])
+        return session.query(cls).filter_by(cls.id==msg['msg']['id'])
+
     def json(self):
         return {
             'id': self.id,