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Bug 726402

Summary:	Systems->Registered->Environments - nil object error generated when there are no systems
Product:	Red Hat Satellite	Reporter:	Brad Buckingham <bbuckingham>
Component:	WebUI	Assignee:	Shannon Hughes <shughes>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Katello QA List <katello-qa-list>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	6.0.0	CC:	sghai, shughes
Target Milestone:	Unspecified	Keywords:	Triaged
Target Release:	Unused
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-08-22 17:50:58 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	747354

Description Brad Buckingham 2011-07-28 13:54:59 UTC

Description of problem:

When accessing the Systems->Registered->Environments, if there are no systems registered an error notice is displayed indicating a nil object was encountered.  

Version-Release number of selected component (if applicable):
git master

How reproducible:
always

Steps to Reproduce:
1. clear-all.sh (to clear the systems)
2. script/rails s
3. go to Systems->Registered->Environments
  
Actual results:
Page loads and following error notice is generated:

You have a nil object when you didn't expect it! You might have expected an instance of Array. The error occurred while evaluating nil.first

Expected results:
Page loads and not error notice is generated (i.e. we should internally handle the nil).

Additional info:

Comment 1 Sachin Ghai 2011-08-19 12:19:19 UTC

Verified this with following build:
root@dhcp201-207 katello]# rpm -qa | grep katello
katello-cli-0.1.4-1.git.63.54683c2.fc15.noarch
katello-0.1.64-1.git.0.0b431ff.fc15.noarch

I verified this on freshly installed system, no error is reproducible under 
Systems->Registered->Environments.

To confirm this, I registered a system from cli and then unregistered it. And checked the Systems->Registered->Environments from webUI. Again the reported error is no longer reproducible.