Merge pull request #24 from skrobul/fix-devices-response

bugfix: NoMethodError when response does not include device list

Author: skrobul

lib/zenoss/jsonapi/device_router.rb

@@ -3,17 +3,17 @@
 #
 #
 # This file is part of zenoss_client.
-# 
+#
 # zenoss_client is free software: you can redistribute it and/or
 # modify it under the terms of the GNU General Public License as published
 # by the Free Software Foundation, either version 3 of the License, or (at
 # your option) any later version.
-# 
+#
 # zenoss_client is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
 # Public License for more details.
-# 
+#
 # You should have received a copy of the GNU General Public License along
 # with zenoss_client.  If not, see <http://www.gnu.org/licenses/>.
 #############################################################################
@@ -44,7 +44,7 @@ def get_devices(uid = '/zport/dmd/Devices', opts = {})
         resp = json_request('DeviceRouter', 'getDevices', [data])
 
         devs = []
-        resp['devices'].each do |dev|
+        resp['devices'] && resp['devices'].each do |dev|
           devs << Model::Device.new(self, dev)
         end
         devs