How to validate issue depending on number components selected?

[Josh_Kochelek__Modus_Create]

I  am trying to do a simple validator that checks to see if more than one component has been selected. I have been trying to use scriptrunner, but I am definitely missing some fundamental logic here. I've tried researching and scrapping a few different things together. I found some deprecated solutions, but nothing that works after 7.0. 

Here's what I have:

import com.atlassian.jira.component.ComponentAccessor 
def compnum = issue.componentObjects*.size()
compnum = 1

Any help would be much appreciated. 

[Christophe Sauvage _NSI - Cegeka Group_ · Accepted solution]

Hi Josh,

You can try this code :

import com.opensymphony.workflow.InvalidInputException

if(issue.getComponents().size() < 2) {
 throw new InvalidInputException("components", "You have to select more than one component.")
}

Regards,

Christophe

[Josh_Kochelek__Modus_Create]

Works perfectly. Thank you! @Christophe Sauvage _NSI - Cegeka Group_