Create a validator to check for multiple versions

[bedub1958]

Developing in Jira 4.4.3 but we will be migrating to Jira 5.2.2 next week.

I have a custom field: 'Planned For' which is a multi-select version picker field. When an issue is created I want to create a workflow transition validator that checks that the value can either be versionA or versionB or both but no other versions.

isUserMemberOfRole('Managers') || cfValues["Planned For"] == null || ['verA', 'verB'].contains(???)

The first two checks work fine where a user with a Manager role can update this field to anything or it can be left blank.
It is the third condition that I'm having difficulty with.

If there is a better solution in 5.2.2 or a generic solution for anything after 4.4.x then that would be a great help.

Brent

[bedub1958]

I should clarify that the only plugins I have installed are Subversion, Importer and Groovyrunner.

I currently am exploring the Behaviour Plugin